众所周知，常见胶粘剂一般分为丙烯酸系列、环氧系列、有机硅系列、氰基丙烯酸系列、聚氨酯系列等等。而不同类型的胶粘剂在某些方面都有着各自的特性，例如需要耐温的话一般有机硅会比较有优势，强度要求比较高的话环氧一般会比较有优势，而如果对弹性要求的话有机硅、聚氨酯又会更有优势。 现在其实很多体系都是可以相互改性而来弥补原有体系的不足，但这样一般也会需要付出较高的成本。最近公司在和美国赫能合作，从他们的一份资料里面找到了一个简易的对比表，大家可以参考一下。他们这份表主要是针对他们公司的产品，有些方面是比较片面的，例如他里面提到环氧需要双组分混合设备等等，其实早就有单组分热固化的环氧了。还有其它的一些与实际差异比较大的地方，就不一一表述了。 请参看下表：

Product Description

Hernon ReAct 727 is a tough acrylic adhesive designed primarily for securing of ceramic permanent magnet segments in motor magnet bonding applications. This adhesive has also found wide acceptance in a variety of structural bonding applications due to its versatile performance capabilities.

ReAct 727 has demonstrated the ability to provide high tensile strength while maintaining excellent product flexibility. This results in tough, durable bonds with outstanding impact and peel resistance. This tough acrylic is a single component, room temperature curing adhesive which is used in conjunction with Hernon EF Activator 56.

Product Benefits

Improved Reliability

• • High impact and shock resistance
• • Temperature resistance: -40 to 300°F (-40 to 149°C)
• • Good gap filling properties.
• • Excellent adhesion to a variety of surfaces.
• • Consistent rate of cure from 60 to 100°F (16 to 38°C)
• • Consistent bond strength 全文 »

Product Description

Hernon Dissipator 745 is a thermally conductive room temperature cure adhesive that is designed for bonding electrical components to heat sink with a controlled gap.

Dissipator 745, through a special shimming property, insulates the component electrically while allowing thermal conductivity. This special shimming feature of produces a constant gap of 0.005 in. to 0.006 in. between components.

Product Benefits

No mixing required (eliminates errors in mixing ratio)

Room temperature cure. No heat required

Eliminates screws and rivets for assembly

Eliminates the air space between components

High k factor for heat conductive application 全文 »

Product Description

Hernon Polycure 744 is a single component, 100% solid system formulated for use on printed circuit boards. This coating can be cured in seconds by high intensity UV light. Low heat (10 minutes at 250ºF) can be used for curing the shaded area. The component may be removed for repair using conventional repair methods of abrasion or localized heat. The repaired part may be recoated off-line using an inexpensive UV light.

Product Benefits

• • Easy to use.
• • Cost effective.
• • Single component, no mixing.
• • 100% solid system (no solvents).
• • Short cure cycles.
• • Dual curing mechanism for shaded area.

全文 »

Product Description

Hernon Conformal Coating 739 is formulated to provide high performance and rapid cure. Conformal Coating 739 will provide an excellent bond, high light transmittance and a refractive index similar to glass. Exposure to high intensity UV light will cure the coating to a hard, dry surface.

Product Benefits

• • Easy to use.
• • Cost effective.
• • Single component, no mixing.
• • 100% solid system (no solvents).
• • Short cure cycles.

Typical Properties (Uncured)

Property Value

Resin Modified acrylic

Appearance Clear liquid

Viscosity @ 25ºC, cP 100 to 300

Specific gravity 1.11

Flash point See MSDS 全文 »

Product Description

Hernon Tuffbond 394 is a single component, high temperature resistant, heat activated epoxy. It cures to a high performance thermoset system with excellent adhesion properties to a wide variety of substrates. The rapid curing mechanism of 1.5 minutes at a bondline temperature of 150ºC makes it ideal for production line use. Tuffbond 394 will change from amber-yellow to a reddish brown upon cure.

Bonding the voice coil to the cone has been a challenge for engineers, specifically when the adhesive temperature resistance requirement is above 200ºF (93ºC). Two component epoxy has been most commonly used for this application, but limitations such as mixing ratio, cure speed, potential solidification in equipment and static mixers and the need for equipment flushing solvents have made Tuffbond 394 more practical. 全文 »

Product Description

Hernon Voice Coil Bonder 360 is a single component, black, heat cure adhesive formulated for bonding and coating voice coil components and high temperature lamination. The cured bond withstands temperatures exceeding 600ºF (316ºC).

Product Benefits

• • Single component
• • Excellent resistance to high temperature, chemicals, and water
• • Flexible, thermal shock resistant bond
• • Excellent adhesion
• • High strength at room temperature and elevated temperatures.

Typical Applications

• • Coating of Aluminum, copper-clad and copper wire coils.
• • Coating of form materials including Kapton H, HN, HPPST AND MTB, fiberglass composite, aluminum and Nomex. 全文 »

Product Description

Hernon Supertacker 357 is a single component, high performance elastomeric adhesive that exhibits exceptional bonding characteristics to a broad range of materials including metals, glass, plastic composites, rubber, leather, wood and vinyl. Supertacker 357 provides a tough, waterproof bond that won’t crack or become brittle. Supertacker 357 out-performs silicones, acrylics, and rubber cement because it bonds to more surfaces with greater strength and durability.

Product Benefits

• • Exceptional flexibility – Does not become brittle in cold weather, can bond items subject to vibration.
• • Waterproof – Can be submerged in fresh and salt water after complete cure.
• • Abrasion resistance – Great for bonding objects subject to wear.
• • Non-flammable
• • Paintable – Paint to match surrounding area or make UV-resistant.
• • Excellent resistance to dilute acids and dilute caustics

Typical Applications

• • Bonding dust caps to surround and surround to basket on loudspeaker applications.
• • Bonding lead wires on loudspeaker applications.
• • Repair conveyor belts.
• • Seal tanks and pipes.
• • Insulate electrical connections and repair plastic containers.
• • Mend hoses.
• • Repair torn vinyl mats.
• • Affix plastic moldings and trim.
• • Reinforce and seal metal seams in trailers, garage doors and HVAC systems

Typical Properties (Uncured)

Property Value

Appearance Clear liquid

Viscosity @ 25ºC, cP 100,000

Specific gravity 1.36

Solids, % 30 by weight, 40 by volume

Tack free time, minutes 5

Flash point See MSDS

Typical Properties (Cured)

Property Value

Tensile strength, psi, ASTM D412 3500

Elongation, %, ASTM D412 900

Hardness, Shore A, ASTM D2240 80

Dielectric strength, volts/mil, ASTM D149 400

Full Cure, thin film, hours 24

Temperature range, ºC (ºF) -40 to 150 (-40 to 300)

Typical Cured Performance

180º Peel Strength, ASTM D903

Cured 7 Days at 22ºC

Substrate 180º Peel Strength, pli

Glass 40

Wood 29

Cement 25

Aluminum 30

Steel 25

ABS 32

Polycarbonate 37

PVC 27

Acrylic 36

Urethane 32

Rubber 20

Thermoplastic rubber 30

Neoprene 32

Typical Environmental Resistance

Chemical/Solvent Resistance

Supertacker 357 exhibits excellent resistance to water, dilute acids and dilute bases. Thin films of Supertacker 357 were immersed in the chemicals/solvents listed below for two weeks and exhibited weight gains of less than 2% and tensile strength loss of less than 1%.

Chemical/Solvent Chemical/Solvent

Acetic acid, 5% Lactic acid, 3.8%

Acetic acid, 10% Sodium chloride, 10%

Sulfuric acid, 3% Sodium carbonate, 2.7%

Sulfuric acid, 10% Potassium hydroxide, 3.4%

Nitric acid, 10% Ammonium hydroxide, 3.4%

Nitric acid, 20% Ammonium nitrate, 50%

Phosphoric acid, 30% Distilled water

Phosphoric acid, 60% P2O5 Motor oil, 30w

Boric acid, 3.1% Hydraulic oil

Oxalic acid, 3.1% Antifreeze

Chemical/Solvent Non-Resistance

The following is a list of common solvents that dissolve Supertacker 357 when hardened samples are immersed. The dissolution with these solvents is not instantaneous and therefore does not preclude usage in all cases. Applications where an occasional splash or brief exposure is expected may be acceptable. Test a small area before full use.

Chemical/Solvent Chemical/Solvent

Gasoline Chlorothane NU

Cyclohexane Chevron solvent 1100

Perchloroethylene Propyl acetate

1,1,1-Trichlorethane Toluene

Methylene chloride

General Information

This product is not recommended for use in pure oxygen and/or oxygen rich systems and should not be selected as a sealant for chlorine or other strong oxidizing materials. For safe handling information on this product, consult the Material Safety Data Sheet (MSDS).

Directions for Use

1. Surface should be clean and dry.

2. For porous surfaces (wood and concrete) apply a liberal bead of adhesive to surfaces and bond immediately.

3. For joining non-porous surfaces, apply a light coating of adhesive to each surface and allow to harden for 5 minutes. Then press both surfaces together.

4. Supertacker 357 hardens by solvent evaporation. At 70ºF (21ºC) the adhesive will provide significant “grab” in 5 minutes. However, normal bond lines require 24 hours and thick bond lines may require 48 to 72 hours.

5. Cure time increases with temperatures lower than 70ºF (21ºC) and decreases with temperatures above 70ºF (21ºC).

6. When finished, wipe excess adhesive from the tube neck and secure with cap.

Application Notes

1. Some substrates require light sanding for optimum adhesion.

2. As a contact adhesive: Apply Supertacker 357 directly to surface. Allow to partially cure, 2-10 minutes, before bringing surfaces together.

3. As a sealant: Use thin coats of Supertacker 357 to build up to thick coating, allowing each layer to set 3 to 4 hours.

4. Speed drying time by using a hand-held dryer. Set on low and do not hold directly on adhesive.

5. If product is used to adhere fabric, do not dry clean fabric.

6. Supertacker 357 is not recommended for use on Styrofoam , polystrene, polyethylene or polypropylene plastics. Test a small area before extensive use.

7. Supertacker 357 is not recommended for use on aquariums.

Storage

Supertacker 357 should be stored in a cool, dry location in unopened containers at a temperature between 46ºF to 82ºF (8ºC to 28ºC) unless otherwise labeled. Optimal storage is at the lower half of this temperature range. To prevent contamination of unused material, do not return any material to its original container.

Dispensing Equipment

Hernon offers a complete line of semi and fully automated dispensing equipment. Contact Hernon Sales for additional information.

These suggestions and data are based on information we believe to be reliable and accurate, but no guarantee of their accuracy is made. HERNON MANUFACTURING, INC. shall not be liable for any damage, loss or injury, direct or consequential arising out of the use or the inability to use the product. In every case, we urge and recommend that purchasers, before using any product in full scale production, make their own tests to determine whether the product is of satisfactory quality and suitability for their operations, and the user assumes all risk and liability whatsoever, in connection therewith. Hernon’s Quality Management System for the design and manufacture of high performance adhesives and sealants is registered to the ISO 9001 Quality Standard.

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近日公司和美国赫能正在洽谈合作的事情，他们公司的老板Harry Arnon推荐了一篇关于胶粘剂市场的文章，抽空看了一下，公司的同事将其翻译成中文，与大家共享之。点击查看原文。 翻译的文章在英文后面：

The Global Formulated Adhesives Market

by Minesh Kusumgar

January 1, 2011

Regional Overviews

Enlarge this picture Figure 1. Adhesive Consumption by Region ($ Billion)

The Asia-Pacific region is the largest consumer of formulated adhesives; it achieved 40% of the 2009 volume and 34% of the dollars. Regional volume was up slightly in 2009 compared to the prior year, while the sales value was slightly lower. China is the largest consumer in Asia-Pacific with 53% of the volume and 49% of the value. Chinese adhesive consumption was up 6% in 2009 as the domestic economy expanded, despite weak export demand for its manufactured products. A robust 9% annual rate of growth is forecast for adhesives in China.

Japan, the second-largest market for adhesives in the region, took 16% of the 2009 volume and one-fifth of the dollars. Volume in Japan declined significantly compared to 2008, and lackluster growth is forecast. India is a smaller user of adhesives, with 6% of the regional volume and 5% of the value. Like China, it is one of the few countries in the world to have experienced modest adhesive growth in 2009. Adhesives in India are projected to expand 11% per year through 2014.

Europe is the second-largest regional consumer of formulated adhesives, with 30% of the world’s volume and 32% of the value in 2009. Europe had been the leader in adhesive dollars prior to 2009. The sharp decline in European consumption allowed the Asia-Pacific region to capture the lead, which is projected to widen in future years. A 3% annual growth rate is forecast for European adhesives, with Eastern European countries expanding somewhat faster than Western Europe. European Union members consumed about 93% of the adhesive dollars.

North America took 24% of the global adhesive volume in 2009 and 27% of the dollars. As was the case in Europe, the market declined significantly from 2008. The U.S. consumed nearly 90% of the regional total, with the rest about equally split between Canada and Mexico. A modest 3% annual rate of growth is forecast for North American adhesive volume. South and Central American countries consumed 5% of the global adhesive volume and dollars in 2009. Brazil is the leading regional consumer with 57% of the value. Brazil weathered the global recession better than most, with adhesive volume only down 2% in 2009. South and Central American adhesives are projected to advance 5% annually through 2014.

Figure 1 shows adhesive dollar consumption by region in 2008 and 2009, as well as the 2014 forecast.

End Use Review

Enlarge this picture Figure 2. Adhesive Consumption by End Use, 2009. ($20.6 Billion Total)

Pressure-sensitive products are the largest adhesive end use, representing 28% of the global volume in 2009 and 25% of the value. Applications include tapes, labels, decals and a host of other specialty products. Over 45 billion m2 of product is adhesive-coated, with tapes comprising over 60% of the total. Two-thirds of the adhesive value is produced in-house by pressure-sensitive product manufacturers. Pressure-sensitive adhesives are forecast to grow 5% annually through 2014, with emerging economies (China, India, Brazil, etc.) expanding faster.

Packaging is the second-largest end use, with 22% of the volume and 18% of the dollars in 2009. Global volume was down only slightly from the prior year and a 4% annual rate of increase is forecast. Flexible packaging is a higher value segment that represents one-quarter of the packaging adhesive dollars in 2009. Construction was the third-largest adhesive outlet in 2009, with 16% of the volume and 10% of the dollars. Construction adhesive applications include ceramic tile and flooring installation, pipe cements, roofing, wall coverings, etc. Volume was down more than 10% compared to 2008, as activity declined significantly in the mature economies.

Woodworking is the fourth-largest end use, taking 11% of the 2009 volume and 8% of the dollars. Wood furniture is a leading application, and global production suffered the effects of the recession. The automotive industry is the fifth-largest end use in dollars, with a 6% share despite representing only 2% of the dollars. Adhesives consumed by car and truck manufacturers are included, as well as those used in the aftermarket. Global vehicle production was 61 million units in 2009, which was down 13% compared to 2008. Steep declines occurred in Europe and North America. In contrast, production in Asia-Pacific remained about the same as output surged in China. Some 810 million vehicles are on the world’s roads, with adhesives used by both the professional and consumer. Excluded from automotive adhesives are windshield sealants, a nearly $600 million market in 2009, as well as several other sealant types.

The five largest adhesive applications took 80% of the adhesive volume in 2009 and two-thirds of the value. Figure 2 shows adhesive consumption by end use in dollars for 2009. Electronics, bookbinding, and aerospace are larger end uses in the “other” category.

Adhesive Technologies

Enlarge this picture Figure 3. Adhesive Consumption by Technology, 2009 ($20.6 Billion Total)

Figure 3 summarizes the four major adhesive technologies in value for 2009. Water-based adhesives are the leading type, with $6.7 billion consumed (33% of the global adhesive sales dollars). Water-based adhesives are generally lower in cost and they represented over one-half of the 2009 pounds.

Solvent-based technology is second in dollars, with its $5.7 billion (28%) of the value. Hot-melts were third, representing one-fifth of the dollars, with packaging and disposable products leading outlets. The 100% reactive category was slightly behind hot-melts in dollars, with a 19% share. These products are generally the highest priced adhesives, and they captured only 4% of the volume. Epoxy, polyurethane, cyanoacrylate, anaerobic, structural acrylic, etc. products are included.

Adhesive Types

Enlarge this picture Figure 4. Adhesives Consumption by Type, 2009 ($20.6 Billion Total)

Adhesives employ a host of polymer types in their formulation. Sales of the leading adhesives by polymer type in 2009 are shown in Figure 4. Acrylics are topmost, with their $3.6 billion in sales representing a 17% share. Acrylic emulsion-based formulations were 72% of the dollars and solvent-based acrylics accounted for 23%. Smaller amounts of structural acrylics and radiation-cured hot-melts are used. Water-based polyvinyl acetate (PVAC) and vinyl acetate-ethylene (VAE) adhesives comprised 14% of the adhesive dollars. Woodworking and packaging are the larger outlets.

Polyurethane adhesives were 12% of the sales and are formulated using each of the four major technologies. Solvent-based formulations were one-half of the polyurethane dollars, with flexible packaging and footwear the largest applications. The 100% reactive polyurethanes were about one-third of the dollars, with flexible packaging and automotive its major outlets. Hot-melt polyurethanes were 10% of the sales and water-based formulations another 7%.

Ethylene-vinyl acetate (EVA) and polyethylene hot-melts were 9% of the adhesive dollars in 2009, as were styrenic block copolymer hot-melts. Packaging is the major user of EVA and polyethylene hot-melts. Some 95% of the styrenic block copolymer adhesives are used in pressure-sensitive products and disposable products (diapers and other).

Epoxy adhesives are used in several higher dollar value end uses, which include the electronic, aerospace and automotive industries. Polychloroprene adhesives are largely solvent-based, although water-based versions have gained share in recent years. Footwear, woodworking and construction are the larger outlets. Larger dollar value adhesives included in “other” are cyanoacrylate, anaerobic, rubber, starch and dextrin, polyester, and polyamide.

在多年销售的不断增长后，胶粘剂需求量在2009年的全球萧条中下跌5% 。2009年，全球GDP下降约1%，工业产品下跌近3% 。预计2009年胶粘剂的消耗量是166亿磅（206亿美元）。随着全球经济的复苏，预计到2014年，胶粘剂的需求量将达到4.5%的年增长率。在欧洲和北美的成熟经济体的缓慢增长的同时，新兴经济体的增长将非常强健。预计在欧盟和北美每人超过$12的胶水需求量，在中国、印度、巴西将降至每户不足$3。

地区概述

Figure 1. Adhesive Consumption by Region($ Billion)

亚太地区是预计胶粘剂的最大消费体；其消耗量在2009年达到总量的40%，总消费金额的34% 。当2009年的总销售额轻微下降时，该地区消耗量较上年却有轻微上涨。中国拥有53%的消耗量，占总销售额的49%，是亚太地区最大的胶水消费者。尽管对其产品的出口需求量偏弱，但中国胶水的消耗量在2009年的国内经济扩张中仍然增长6% 。预计中国胶粘剂需求量将有9% 的稳健增长量。

日本，该地区胶粘剂的第二大需求量国家，占2009年总消耗量的16%，占总销售额的1/5。相比2008年，日本需求量大幅度降低，前景预计不佳。印度为胶水小用户，占地区用量的6%，总销售额的5% 。中国是全球仅有的几个在2009年胶水用量有些微增长的国家之一。印度的胶水用量预计在2014年达到11%的年增长率。

欧洲是预计胶水的第二大消费地区，2009年占世界总需求量的30%，总销售额的32% 。2009年之前，欧洲是胶水销售额的领跑者。欧洲胶水消耗量的大幅下跌使得亚太地区可以趁机追赶，预期在未来几年内扩展销量以获取领跑地位。预计欧洲胶水将有3%的年增长率，东欧国家增长速度略大于西欧国家。欧盟成员约占欧洲总胶水销量的93% 。

北美在2009年占全球胶水用量的24%，总销售额的27% 。与欧洲市场一样，北美市场大幅较2008年大幅下跌。美国消耗量达到整个地区近90%，余下的需求量由加拿大和墨西哥均分。预计北美的胶水需求量将有3%的缓慢增长。2009年，南美和中部国家消耗量占全球消耗量和销售额的5% 。巴西是该地区的领跑者，占总量的57%。在2009年的全球经济萧条中，巴西比大多数国家更经得起风霜，胶水需求量仅下降了2% 。预计南美和中美洲在2014年的胶水需求量将达到5%的年增长率。

图1标示了2008-2009年地区的胶水销售额，以及2014年的预计销售额。

最终用途概述

Figure 2. Adhesive Consumption by End Use, 2009. ($20.6 Billion Total)

压敏产品是胶水的最大应用点，占2009年全球总量的28%，总销售额的25% 。应用包括：胶带、标签、贴花纸，以及许多其他特有产品。超过450亿产品需要涂胶，包括胶带在内，占总量比例超过60% 。2/3的胶水销售量是由压敏产品生产商在室内生产的。随着新兴经济体（中国、印度、巴西等）的快速扩张，预计2014年压敏胶粘剂将达到5%的年增长率。

包装是胶水终端用途的第二大应用点，在2009年，占总销售量的22%，总销售额的18% 。全球需求量较前年仅轻微下调，预计将有4%的年增长率。软包装是高产值部分，在2009年占包装用品胶水销售量的1/4.结构胶属于包装用胶第三大胶水需求点，占2009年总需求量的16%，总销售额的10% 。结构胶应用包括瓷砖和地板的安装、管道粘接、房顶及墙面涂胶等。结构胶在成熟经济体中的需求量大幅下跌。相比2008年，需求量下跌了不只10%。

木工艺是终端用途的第四大模块，占2009年总需求量的11%，总销售额的8%。木制家具是领头应用点；全球生产也受到了经济萧条的影响。汽车工业是终端应用的第五大模块，占全球需求量的6%，全球销售额的2% 。该模块包括汽车、卡车生产商的胶水消耗量，已经用于售后的消耗量。2009年，全球的交通工具产品达到6100万单位，相比2008年下降了13%。欧洲、北美地区遭受急剧下降。相反，亚太地区与中国同样保持大批量产量。大概8.1亿的交通工具已投入到世界的道路上，意味着胶水在被专业生产及非专业用户同时使用着。不包括从汽车挡风玻璃密封胶，在2009年有近6亿美元的市场，以及其他一些类型的密封胶。

这五个最大的胶粘剂应用点占据了2009年胶水需求量的80%，占销售额的2/3。图2标示了2009年终端应用的胶水消耗量（美元）。电子、装订，及航天是更大的另一类终端应用点。

胶水技术

Figure 3. Adhesive Consumption by Technology, 2009($20.6 Billion Total)

图3总结了2009年销量的4个主要胶粘剂技术。水基粘合剂是领头类，达67亿美元的消耗量（全球胶水销售量的33%）。水基粘合剂通常价格较低，占2009年英镑销售的一半以上。

溶剂型技术是销售额中的第二大技术，达57亿美元的销售量（占28%）。热熔型占第三，占总销售额的1/5，包括包装及一次性产品领先的行业。100%的活性类占比微次于热熔型，占19%份额。这些产品通常是价格最高的，只占取了总量的4%。包括环氧树脂、聚氨酯甲酸乙酯、厌氧胶、结构丙烯酸树脂等产品。

胶水类型

Figure 4. Adhesives Consumption by Type, 2009($20.6 Billion Total)

胶水的配方中，有许多是聚合型产物。图4中列出了2009年销售领先的聚合型胶水。丙烯酸酯占首位销售，达到36亿美元，占17%份额。丙烯酸酯乳液型配方占该份额的72%，溶剂型丙烯酸酯占23%。结构型丙烯酸酯和辐射固化热熔型的使用量占更少的份额。水性乙烯聚醋酸酯(PVAC)和乙烯醋酸乙烯酯(VAE)粘合剂占占该份额的14%。木工艺和包装行业有更大的市场前景。

聚氨基甲酸乙酯粘合剂占销售额的12%，可用4个主要技术中的任何一个来配置。溶剂型配方占聚氨基甲酸乙酯销售额的一半，最常用于软包装和鞋产品。所有的活性聚氨基甲酸乙酯占总销售额的1/3，主要应用于软包装盒汽车业。热熔型聚氨基甲酸乙酯占销售额的10%，水性配方占7% 。

乙烯醋酸乙烯酯(EVA)和聚乙烯热熔型占2009年胶水销售量的9%，与热熔型苯乙烯类嵌段共聚物一致。乙烯醋酸乙烯酯(EVA)和聚乙烯热熔型最常用于包装。大概95%的苯乙烯类嵌段共聚物粘合剂都用于压敏产品和一次性产品。（尿布及其他）

环氧树脂粘合剂用于一些高价值终端产品，包括电子、航天及汽车工业。聚氯丁烯粘合剂多是溶剂型；近年来水性产品也获取了一些市场。主要应用于鞋产品、木工艺及建筑业。在其他行业占更大份额的粘合剂包括：氰基丙烯酸酯胶粘剂、厌氧胶、橡胶、淀粉-糊精粘合剂、聚酯以及聚酰胺。

外部竞争

跨国并购继续改变着胶水供应商的结构。2009年，前20个胶粘剂配方供应商占取了总销售额的47% 。这些公司销售了55%的粘合剂到北美、欧洲、南美及中美洲。他们在亚太地区仅占约1/3，但预计可上升。

很多粘合剂销售商通过销售相关产品增加其销售额，包括密封剂、装订机、结构产品、电子封装、以及包胶化合物、涂层等。尽管这些供应商基于大量终端应用的集中性，大范围的终端应用商、应用点和技术领域仍产生了成千的供应商，并生成了新兴技术盛行的环境。

以上信息基于新调查结果The Global Adhesives Industry(全球粘合剂工业)，作者是Steven Nerlfi, Minesh Kusumgar, and Michael Growney。如需更多信息，可致电：(201)773-0785.  E-mail: nerlfikng@cs.com 或访问网站 www.kusumgar-nerlfigrowney.com .

Product Description

Hernon  Dissipator  746 is a thermally conductive adhesive formulated for bonding electrical components to heat sinks or printed circuit boards. Fast room temperature cure combined with excellent heat dissipation for thermally sensitive components and controlled strength for service repair provide perfect replacement for tapes, epoxies, silicones, fasteners and mechanical clips.

Typical Applications

Typical applications include bonding transformers, transistors and other heat generating electronic components to printed circuit board assemblies or heat sinks.

Typical Properties (Uncured)

Property Value

Chemical type Modified acrylic

Appearance White paste

Viscosity at 77ºF (25ºC), Cp  at 2.5 rpm    500,000 to 2,000,000

at 20 rpm     300,000 to 800,000

Specific gravity 1.64

Flash point See MSDS

Typical Properties (Cured)

Physical Properties

Property Value

Coefficient of thermal expansion, ASTM D696 (K-1)    69 x 10-6

Coefficient of thermal conductivity,ASTM C 177, W/(m·K)  0.76

Tensile Strength at break, ISO 527, N/mm² (psi)  12.8 (1,860)

Elongation at break, ISO 527, %   0.92

Young’s Modulus, N/mm² (psi) 2,760 (400,000)

Temperature Range, ºC (ºF) -55 to 150 (-65 to 300)

Electrical Properties

Property Value

Dielectric Strength, IEC 60243-1, kV/mm  26.7

Dielectric Constant   IEC 60250 @ 100 Hz  6.49

1kHz    5.87

1 MHz  5.23

Dissipation Factor  IEC 60250  @ 100 Hz  0.10

1 kHz   0.04

10 kHz  0.03

Volume Resistivity, Ω·cm, IEC 60093   1.3 × 1012

Surface Resistivity, Ω, IEC 60093      5.1 × 1013

Typical Curing Performance

Dissipator 746, when used with Hernon EFActivator 63, fixtures at room temperature in less than five minutes.

Typical Cured Performance

Cured for 24 hours @ 22ºC.

Steel lap-shear specimens (EF Activator 63 applied to one surface), Shear Strength, ISO 4587

Property Value    Shear Strength, N/mm² (psi) ≥ 6.9 (≥ 1000)

Typical Environmental Resistance

Cured for 72 hours @ 22ºC.

steel lap-shear specimens (EF Activator 63 applied to one surface), Shear Strength, ISO 4587

Chemical/Solvent Resistance

Aged under conditions indicated for 720 hours and  tested at 22ºC.

Chemical/Solvent Temp (ºC) % of Initial Strength

Air              87          140

Water           87           75

Freon TF         87          85

Thermal Cycle Resistance

Bonded aluminum to epoxyglass lapshears cured 72hours using EF Activator 63 on 1 side were subjected to thermal cycling of 15ºC to 100ºC with a ramp time of 30 minutes. No loss in strength occurred after 1,000 hours of cycle time.

General Information

For safe handling information on this product, consult the Material Safety Data Sheet (MSDS).

Directions for use

1. For best performance bond surfaces should be clean and free from grease.

2. Use applicator to apply the activator to the surface to be bonded.

3. After the solvent evaporates, the active ingredients will appear wet, and will remain active for up to 2 hours after application. Contamination of the surface before bonding should be prevented.

4. Apply adhesive to the unactivated surface.

5. Secure the assembly, and wait for the adhesive to fixture (approximately 5 minutes) before any further handling. Full cure occurs in 4 to 12 hours.

6. The amount of adhesive applied to the part or heat sink should be limited to the amount necessary to fill the bond and just enough to give a small fillet.

7. The dispensing or application of the adhesive should be done as to minimize air entrapment within the bondline.

Device Removal/Repair

Components or devices with this thermally conductive adhesive can be removed while hot using heat from a hot air jet. Bond strength decreases at approximately 65ºC to 93ºC allowing components to be removed with lower shear forces. Method of removal/repair should be specifically determined due to the variety of components or devices bonding behavior.

Storage

Dissipator 746 should be stored in a cool, dry location in unopened containers at a temperature between 46ºF to 82ºF (8ºC to 28ºC) unless otherwise labeled. Optimal storage is at the lower half of this temperature range. To prevent contamination of unused material, do not return any material to its original container.

Dispensing Equipment

Hernon offers a complete line of semi and fully automated dispensing equipment. Contact Hernon Sales for additional information.

These suggestions and data are based on information we believe to be reliable and accurate, but no guarantee of their accuracy is made. HERNON MANUFACTURING, INC. shall not be liable for any damage, loss or injury, direct or consequential arising out of the use or the inability to use the product. In every case, we urge and recommend that purchasers, before using any product in full scale production, make their own tests to determine whether the product is of satisfactory quality and suitability for their operations, and the user assumes all risk and liability whatsoever, in connection therewith. Hernon’s Quality Management System for the design and manufacture of high performance adhesives and sealants is registered to the ISO 9001 Quality Standard.

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