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PBT (polybutylece terephthalate) for automobile power supply connector and preparation method of PBT

An automotive power supply and connector technology, which is applied in the field of polymer material PBT production, can solve the problems of not rising but falling instead of impact strength, and achieve the effect of excellent physical properties

Inactive Publication Date: 2018-05-04
JIANGYIN LONGSHAN SYNTHETIC MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, low content of talc powder has the effect of nucleating agent and strengthening and toughening, which can improve the mechanical properties of PBT materials. When the filling amount of talc powder is large, it will cause the particles of talc powder to approach each other, even if it is treated with coupling agent. After the talcum powder is used, the material still shows that the notched impact strength does not increase but decreases

Method used

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  • PBT (polybutylece terephthalate) for automobile power supply connector and preparation method of PBT

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0022] Embodiment 1-5 (abbreviated as S1-5, the same below)

Embodiment 1

[0023] The PBT raw material composition of the automotive power supply connector of embodiment 1 sees the following table in parts by weight:

[0024]

S1

S2

S3

S4

S5

PBT (part)

20

50

30

40

31

ASA (parts)

30

10

25

15

18

PC(part)

15

25

20

20

21

Glass fiber (parts)

33

20

30

26

30

Compatibilizer (parts)

10

2

5

3

4.5

Antioxidant (part)

0.1

0.3

0.2

0.2

0.8

[0025] The intrinsic viscosity of PBT resin in embodiment 1-2 is 1 ± 0.015dl / g;

[0026] The ASA rubber content of core-shell structure in embodiment 1-5 is 10%; The diameter of chopped glass fiber is 7-10 μ m, and chopped glass fiber comprises 3-4mm by length; Compatilizer is SMA (styrene-malay anhydride binary copolymer), the antioxidant uses 2,8-di-tert-butyl-4-methylphenol (a kind of hindered phenol antioxidant).

[0027] Embodiment 1-5 The preparation method of PBT...

Embodiment 6-8

[0033] The difference between Examples 6-8 and Example 5 is that the compatibilizer is maleic anhydride grafted polyolefin elastomer; the antioxidant is compounded from hindered phenolic antioxidant and phosphite antioxidant.

[0034] The grafting rate of the maleic anhydride grafted polyolefin elastomer of embodiment 6-8 is respectively 0.5MA%, 0.8MA%, 1MA%, and the percentage by weight of hindered phenolic antioxidant in antioxidant is 25%, 35%. %, 33%;

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Abstract

The invention discloses PBT (polybutylece terephthalate) for an automobile power supply connector. The PBT is prepared from the following raw materials in parts by weight: 20 to 50 parts of PBT, 10 to30 parts of acrylonitrile-styrene-acrylate-grafted copolymer ASA, 15 to 25 parts of polycarbonate PC, 20 to 33 parts of chopped glass fiber, 2 to 10 parts of a compatilizer and 0.3 to 1.0 part of anantioxidant. The intrinsic viscosity of the PBT resin is 1+ / -0.015 dl / g. The PBT for the automobile power supply connector is high in physical property, mechanical property and electric property, andmeets various index requirements for power supply connectors such as a USB interface, a mobile phone charger, a cigarette igniter and a vehicle-mounted dust collector in an automobile.

Description

technical field [0001] The invention relates to the technical field of polymer material PBT production, and in particular relates to a PBT for automobile power supply connectors and a preparation method thereof. Background technique [0002] Power connectors such as USB ports, mobile phone chargers, cigarette lighters, and car vacuum cleaners in automobiles are usually made of PBT material. Due to the special use environment, they are different from other components in automotive interiors. The PBT material requirements for the above connectors are: Moisture and heat resistance, water boiling resistance, low warpage, but also need to have excellent electrical properties, environmental performance and low temperature toughness. PBT plastic refers to a type of plastic composed of polybutylene terephthalate as the main body. The advantages of PBT plastics commonly used in the prior art are mechanical properties, heat aging resistance, solvent resistance, water stability, good ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/04C08L69/00C08L51/06C08L35/06C08K7/14C08K5/13C08K5/524
CPCC08L67/02C08K2201/003C08K2201/004C08L51/04C08L2205/035C08L69/00C08L51/06C08L35/06C08K7/14C08K5/13C08K5/524
Inventor 赵峻雷
Owner JIANGYIN LONGSHAN SYNTHETIC MATERIAL