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Toughened and anti-aging PBT powder

An anti-aging and powder technology, which is applied in the field of toughening and anti-aging PBT powder, can solve the problems of limiting the application range of PBT, low notched impact strength, poor anti-aging performance, etc., and achieve good appearance, strong anti-aging performance and heat resistance Good results

Inactive Publication Date: 2015-08-19
QINGDAO WANLI TECH
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AI Technical Summary

Problems solved by technology

However, the performance of PBT is still insufficient in some aspects, such as low notched impact strength, insufficient toughness, poor aging resistance, etc., which will limit the application range of PBT

Method used

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Embodiment Construction

[0014] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0015] A toughened and anti-aging PBT powder, its components are proportioned by mass percentage: PBT 75%, MBS 10%, glass fiber 10%, benzotriazole light absorber 3%, erucamide 0.7%, pentaerythritol 1% stearate, 0.3% antioxidant. Wherein, the PBT is polybutylene terephthalate resin; the MBS is methacrylate-butadiene-styrene copolymer; Alkali-free chopped glass fiber; the antioxidant is a compound of hindered phenolic antioxidant 1076 and phosphite antioxidant 168 at a mass ratio of 1:2.

[0016] Its preparation method is as follows: (1), drying PBT at 120°C-130°C for 4-6 hours, so that the moisture content is controlled below 0.03%, and it is ready for use; (2), weighing the step (1 ) to obtain dry PBT and add it to a high-speed mixer, and simultaneously add MBS, glass fiber, benzotriazole light absorber, erucamide, pentaerythritol stearate, and ...

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PUM

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Abstract

The present invention discloses toughened and anti-aging PBT powder, which comprises, by mass, 70-85% of PBT, 5-10% of MBS, 5-10% of glass fibers, 0.5-3% of a benzotriazole light absorbing agent, 0.1-1% of erucylamide, 0.1-1% of pentaerythrityl tetrastearate, and 0.1-0.5% of an antioxidant, wherein the glass fibers are the alkali-free short cut glass fibers with the surface treated by a silane coupling agent KH560. The toughened and anti-aging PBT powder of the present invention has beneficial effects of good impact resistance toughness, good tensile strength, good heat resistance, strong aging resistance, good appearance, easy processing, and low cost, and can be used in the fields of electronic appliances, vehicles, chemical industry, machinery and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a toughened and anti-aging PBT powder. Background technique [0002] Polybutylene terephthalate (PBT for short) is a crystalline thermoplastic polyester resin, which is widely used due to its excellent mechanical properties, electrical properties, heat resistance and processing properties, and has become one of the top five engineering plastics one. However, the performance of PBT is still insufficient in some aspects, such as low notched impact strength, insufficient toughness, poor aging resistance, etc., which will limit the application range of PBT. Contents of the invention [0003] The purpose of the present invention is to provide a toughened and anti-aging PBT powder with good impact resistance and strong anti-aging performance. [0004] The technical solution adopted by the present invention to solve the technical problem is: a toughened and anti-aging PBT ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L33/10C08K13/06C08K9/06C08K7/14
Inventor 不公告发明人
Owner QINGDAO WANLI TECH
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