Low surface tension PBT resin

Abstract

The present invention discloses a low surface tension PBT resin, which comprises, by weight, 78-99 parts of a PBT resin and 0.5-10 parts of a surface tension modifier, wherein the surface tension modifier is at least one selected from polyethylene glycol, oxidized polyethylene wax, stearate, a metallic soap salt and stearamide. According to the present invention, the low surface tension PBT resin has significant lower surface tension properties, can be well separated from the target substance, and can replace the TPX resin so as to be widely used as the LED packaging mold in the electronics packaging industry.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a low surface tension PBT resin. Background technique [0002] Polybutylene terephthalate (PBT) is a semi-crystalline engineering plastic with good mechanical properties, electrical properties, heat resistance and chemical resistance, etc. It is widely used in automobiles, electronics, electrical appliances and other industries . However, PBT still has shortcomings. For example, when it is applied in the field of thin films, the surface tension of PBT resin is very high, and it is difficult to separate it from the target, thus limiting its application in the field of thin films. [0003] The film on the market mainly uses poly(4-methylpentene) TPX, which has a very low surface tension and can be separated from the target object. It is widely used as an LED packaging mold in the electronic packaging industry. [0004] At present, there is no literature report on PBT...

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Problems solved by technology

[0004] At present, there is no literature report on PBT resin with low surface tension, so it is necessary to study a PBT resin with low surface tension to expand its application range

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