{"id":1898,"date":"2011-03-30T21:25:58","date_gmt":"2011-03-30T13:25:58","guid":{"rendered":"http:\/\/www.g4e.cn\/wordpress\/?p=1898"},"modified":"2013-11-19T16:05:52","modified_gmt":"2013-11-19T08:05:52","slug":"hernon-dissipator-745-technical-data-sheet","status":"publish","type":"post","link":"http:\/\/www.g4e.cn\/wordpress\/datasheet\/1898.html","title":{"rendered":"Hernon Dissipator 745 Technical Data Sheet"},"content":{"rendered":"

Product Description <\/strong><\/p>\n

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.<\/p>\n

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.<\/p>\n

 <\/p>\n

Product Benefits <\/strong><\/p>\n

No mixing required (eliminates errors in mixing ratio)<\/p>\n

Room temperature cure. No heat required<\/p>\n

Eliminates screws and rivets for assembly<\/p>\n

Eliminates the air space between components<\/p>\n

High k factor for heat conductive application<\/p>\n

 <\/p>\n

Typical Properties (Uncured)<\/strong><\/p>\n\n\n\n\n\n\n\n\n
Property<\/td>\nValue<\/td>\n<\/tr>\n
Chemical type<\/td>\nModified acrylic<\/td>\n<\/tr>\n
Appearance<\/td>\nLight blue paste<\/td>\n<\/tr>\n
Viscosity at 77\u00baF (25\u00baC), cP<\/td>\n300,000 to 800,000<\/td>\n<\/tr>\n
Specific gravity<\/td>\n1.63<\/td>\n<\/tr>\n
Flash point<\/td>\nSee MSDS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Typical Properties (Cured) <\/strong><\/p>\n

Physical Properties<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
Property<\/td>\nValue<\/td>\n<\/tr>\n
Coefficient of thermal expansion, ASTM D696 (K-1)<\/td>\n69 x 10-6<\/td>\n<\/tr>\n
Coefficient of thermal conductivity, ASTM C 177, W\/(m\u00b7K)<\/td>\n0.808<\/td>\n<\/tr>\n
Tensile Strength at break, ISO 527, N\/mm\u00b2 (psi)<\/td>\n15.2 (2,200)<\/td>\n<\/tr>\n
Elongation at break, ISO 527, %<\/td>\n1<\/td>\n<\/tr>\n
Young’s Modulus, N\/mm\u00b2 (psi)<\/td>\n2,690 (390,000)<\/td>\n<\/tr>\n
Temperature Range, \u00baC (\u00baF)<\/td>\n-55 to 150 (-65 to 300)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Electrical Properties<\/strong><\/p>\n\n\n\n\n\n\n\n\n
Property<\/td>\nValue<\/td>\n<\/tr>\n
Dielectric Strength, kV\/mm IEC 60243-1, kV\/mm<\/td>\n26.7<\/td>\n<\/tr>\n
Dielectric Constant\u00a0 @ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0100 HzIEC 60250 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a01 kHz<\/p>\n

1 MHz<\/td>\n

6.175.62<\/p>\n

4.99<\/td>\n<\/tr>\n

Dissipation Factor\u00a0 @ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0100 HzIEC 60250\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1 kHz<\/p>\n

10 kHz<\/td>\n

0.090.04<\/p>\n

0.03<\/td>\n<\/tr>\n

Volume Resistivity, \u03a9\u00b7cm, IEC 60093<\/td>\n1.3 \u00d7 1012<\/sup><\/strong><\/td>\n<\/tr>\n
Surface Resistivity, \u03a9, IEC 60093<\/td>\n1.2 \u00d7 1013 <\/sup><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Typical Curing Performance<\/strong><\/p>\n

Dissipator 745, when used with Hernon \u00a0EF Activator 63, fixtures at room temperature in less than five minutes.<\/p>\n

 <\/p>\n

Typical Cured Performance<\/strong><\/p>\n

Shear Strength, ISO 4587<\/p>\n

EF \u00a0Activator 63 applied to one surface<\/p>\n\n\n\n\n\n\n\n\n
Cure @ 22\u00baC<\/td>\nSubstrates<\/td>\n<\/td>\nN\/mm\u00b2 (psi)<\/td>\n<\/tr>\n
1 hour<\/td>\nSteel<\/td>\n<\/td>\n\u2265 3.4 (\u2265 500)<\/td>\n<\/tr>\n
24 hours<\/td>\nSteel<\/td>\n<\/td>\n\u2265 5.5 (\u2265 800)<\/td>\n<\/tr>\n
72 hours<\/td>\nSteel<\/td>\n<\/td>\n6.9 (1000)<\/td>\n<\/tr>\n
72 hours<\/td>\nAluminum<\/td>\n<\/td>\n5.5 (800)<\/td>\n<\/tr>\n
72 hours<\/td>\nAluminum to Epoxy glass<\/td>\n<\/td>\n4.1 (600)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Impact Strength, ISO 4587 EF\uf8e8 <\/sup>Activator 63 applied to one surface<\/p>\n\n\n\n\n
Cure @ 22\u00baC<\/td>\nSubstrates<\/td>\n<\/td>\nN.m(lb.ft)<\/td>\n<\/tr>\n
72 hour<\/td>\nSteel<\/td>\n<\/td>\n6.8(5)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

 <\/p>\n

Typical Environmental Resistance<\/strong><\/p>\n

Cured for 72 hours @ 22\u00baC. steel lap-shear specimens (EF<\/strong>\uf8e8 Activator 63 <\/strong>applied to one surface), Shear Strength, ISO 4587<\/p>\n

 <\/p>\n

Chemical\/Solvent Resistance<\/strong><\/p>\n

Aged under conditions indicated for 720 hours and tested at 22\u00baC.<\/p>\n\n\n\n\n\n\n
Chemical\/Solvent<\/td>\nTemp (\u00baC)<\/td>\n% of Initial Strength<\/td>\n<\/tr>\n
Air<\/td>\n87<\/td>\n140<\/td>\n<\/tr>\n
Water<\/td>\n87<\/td>\n75<\/td>\n<\/tr>\n
Freon TF<\/td>\n87<\/td>\n85<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Thermal Cycle Resistance<\/strong><\/p>\n

Bonded aluminum to epoxyglass lapshears cured 72 hours using EF<\/strong> Activator 63 <\/strong>on 1 side were subjected to thermal cycling of 15\u00baC to 100\u00baC with a ramp time of 30 minutes. No loss in strength occurred after 1,000 hours of cycle time.<\/p>\n

 <\/p>\n

General Information<\/strong><\/p>\n

For safe handling information on this product, consult the Material Safety Data Sheet (MSDS).<\/strong><\/p>\n

 <\/p>\n

Directions for use<\/strong><\/p>\n

1. For best performance bond surfaces should be clean and free from grease.<\/p>\n

2. Use applicator to apply the activator to the surface to be bonded.<\/p>\n

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.<\/p>\n

4. Apply adhesive to the unactivated surface.<\/p>\n

5. Secure the assembly, and wait for the adhesive to fixture (approximately 5 minutes) before any further handling. Full cure occurs in 4 to 24 hours.<\/p>\n

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.<\/p>\n

7. The dispensing or application of the adhesive should be done as to minimize air entrapment within the bondline.<\/p>\n

8. The successful application of this product depends on accurate dispensing on the parts to be bonded.Hernon<\/strong> Equipment Engineers are available to assist you in selecting and implementing the appropriate dispensing equipment for your application.<\/p>\n

 <\/p>\n

Storage<\/strong><\/p>\n

Dissipator<\/strong> 745 <\/strong>should be stored in a cool, dry location in unopened containers at a temperature between 46\u00baF to 82\u00baF (8\u00baC to 28\u00baC) 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.<\/p>\n

 <\/p>\n

Dispensing Equipment<\/strong><\/p>\n

Hernon<\/strong> offers a complete line of semi and fully automated dispensing equipment. Contact Hernon Sales <\/strong>for additional information.<\/p>\n

\u70b9\u51fb\u4e0b\u8f7d\u9644\u4ef6\u67e5\u770bTDS:

\"\"  Hernon Dissipator 745 TDS<\/a><\/strong> (99.2 KB, 144 \u6b21)<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

Product Description Hernon Dissipator 745 is a thermall […]<\/p>\n","protected":false},"author":1,"featured_media":3761,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[667],"tags":[355,354,306],"_links":{"self":[{"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/posts\/1898"}],"collection":[{"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/comments?post=1898"}],"version-history":[{"count":0,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/posts\/1898\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/media\/3761"}],"wp:attachment":[{"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/media?parent=1898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/categories?post=1898"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/tags?post=1898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}