摘要:
An electron package includes an interface member between an electronic component and a thermal dissipation member. The interface member is highly efficient in transmitting thermal energy and/or suppressing electromagnetic radiation, with a particle filler dispersion including a combination of substantially spherical particles and substantially platelet-shaped particles within dispersion attribute ranges.
摘要:
The invention is directed to a personal care composition which contains an ionically-modified cross-linked silicone network which is formed by the polymerization of a silicone polymer containing hydrosilylation effective unsaturated moiety, silyl hydride moiety and ionic radicals.
摘要:
A fastener comprising a polymer composition [composition (C)] comprising at least one polyaryletherketone polymer [(PAEK) polymer], and at least one nitride (NI) of an element having an electronegativity (c) of from 1.3 to 2.5, as listed in >, CRC Press, 64th edition, pages B-65 to B-158, based on the total weight of the composition (C).
摘要翻译:包含包含至少一种聚芳醚酮聚合物[(PAEK)聚合物]的聚合物组合物[组合物(C)]和至少一种具有1.3至2.5的电负性(c)的元素的至少一种氮化物(NI),如所列 在“Handbook of Chemistry and Physics”,CRC Press,第64版,B-65至B-158页中,基于组合物(C)的总重量。
摘要:
Provided are methods of forming thermally conductive flexible bonds for use in electronic boards of unmanned spacecrafts and other types of aircraft. Also provided are methods of preparing adhesive materials to form these bonds including methods of preparing treated filler particles. In some aspects, an adhesive material includes filler particles having organofunctional groups, such as boron nitride particles treated in silane. These particles may be combined with a urethane modified epoxy to form the adhesive material. The weight ratio of the particles in the adhesive material may be about 40-60%. The adhesive material may be thermally cured using a temperature of less than 110° C. to prevent damage to bonded electronic components. The cured adhesive may have a thermal conductivity of at least about 2 W/m K measured in vacuum and may have a glass transition temperature if less than −40° C.
摘要翻译:提供了形成用于无人驾驶飞船和其他类型的飞机的电子板的导热柔性键的方法。 还提供了制备形成这些键的粘合剂材料的方法,包括制备经处理的填料颗粒的方法。 在一些方面,粘合剂材料包括具有有机官能团的填料颗粒,例如在硅烷中处理的氮化硼颗粒。 这些颗粒可以与氨基甲酸酯改性的环氧树脂组合以形成粘合剂材料。 粘合剂材料中的颗粒的重量比可以为约40-60%。 粘合剂材料可以使用小于110℃的温度进行热固化,以防止粘合的电子部件损坏。 固化的粘合剂可以具有在真空中测量的至少约2W / m K的热导率,并且如果小于-40℃可具有玻璃化转变温度。
摘要:
The present invention relates to polyimide pastes and methods of preparation. The polyimide pastes are used to prepare dielectric materials, and devices which include at least one layer which contain the polyimide pastes.
摘要:
An epoxybenzyl-terminated poly(arylene ether) has the structure R—W—R wherein W is a divalent poly(arylene ether) residue terminated with phenolic oxygen atoms, and R is an epoxybenzyl group, wherein each occurrence of R is the same or different. The epoxybenzyl-terminated poly(arylene ether) is formed by reacting a peroxide-containing reagent with a vinybenzyl-terminated poly(arylene ether). Also disclosed is a curable composition including the epoxybenzyl-terminated poly(arylene ether)s, a curing promoter, and, optionally, an auxiliary epoxy resin. The curable composition is useful for the preparation of composites, and in particular, composites used in manufacturing printed circuit boards.
摘要:
A thermally conductive polymer composite material and an article including the same. The thermally conductive polymer composite material includes 15 to 20 parts by weight of a wholly aromatic liquid crystalline polyester resin; and 80 to 85 parts by weight of a thermally conductive additive.
摘要:
A method for preparing an insulating varnish. The method includes: providing equivalence of an epoxy resin solution having a concentration exceeding 99 wt. % and acetone solution having a concentration of 40 wt. %, adding silane coupling agent-modified hexagonal boron nitride (BN) having a particle size of between 200 and 250 nm to the acetone solution and stirring; mixing the epoxy resin solution and the acetone solution and stirring, and dispersing the resulting mixture; adding to the mixture, low molecular weight polyamide resins as a curing agent, and stirring to uniformly disperse the curing agent; adding n-butane as a lubricant to the mixture and stirring, cooling the mixture to room temperature, adding di-n-butyl phthalate as a diluent to the mixture and stirring; and allowing the mixture to stand in a vacuum drier to remove bubbles to yield the insulating varnish, which is free of bubbles.
摘要:
The present invention provides a heat dissipating member containing a fluorine resin and a thermally-conductive filler and having good adhesive properties. The present invention is a heat dissipating member including: a porous base material containing a fluorine resin and a thermally-conductive filler; and an adhesive material contained in pores of the porous base material. The fluorine resin contains polytetrafluoroethylene.
摘要:
A thermal conductive sheet has a peeling adhesive force with respect to a copper foil of 2 N/10 mm or more, a thermal conductivity in a thickness direction (TC1) of 4 W/m·K or more, a thermal conductivity in a direction perpendicular to the thickness direction (TC2) of 20 W/m·K or more, and a ratio (TC2/TC1) of the thermal conductivity in a direction perpendicular to the thickness direction (TC2) with respect to the thermal conductivity in the thickness direction (TC1) of 3 or more.