High-wear-resistance and toughening PBT (polybutylene terephthalate) material for automobile inhaul cable and preparation method of high-wear-resistance and toughening PBT material

Abstract

The invention discloses a high-wear-resistance toughened PBT (Polybutylene Terephthalate) material for an automobile inhaul cable. The high-wear-resistance toughened PBT material is prepared from the following raw materials in parts by weight: 70 to 90 parts of PBT, 5 to 20 parts of wear-resistant agent, 5 to 10 parts of toughening agent, 0.2 to 2 parts of bulking agent, 0.4 to 2.0 parts of antioxidant, 0.2 to 1.0 part of lubricating agent, 0.1 to 0.5 part of graphene composite modified polyimide fiber and 0.1 to 0.3 part of ionic liquid composite rare earth liquid. According to the invention, the PBT material is used as a matrix, the wear-resistant agent, the flexibilizer and the compatibilizer are optimally combined and proportioned, and the PBT material is processed and granulated by a twin-screw extruder with the diameter phi of 30mm, so that the toughened PBT material with high wear resistance is prepared.

Description

technical field [0001] The invention relates to the technical field of PBT materials for automobile cables, in particular to a highly wear-resistant and toughened PBT material for automobile cables and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (hereinafter referred to as PBT) is a crystalline polymer with excellent properties such as high heat resistance, fatigue resistance, weather resistance, and low water absorption. It is widely used in automobile parts, electronic appliances, etc. , household items, etc. In the application of automotive cables, pure PBT materials cannot meet the requirements in terms of wear resistance and toughness. It is because the surface hardness of PBT material is low and the surface friction coefficient is large, and at the same time, a certain toughness is required to meet the requirements of low temperature resistance, and wear resistance and toughness are exactly contradictory. In recent years, do...

AI Technical Summary

Problems solved by technology

In recent years, domestic modified plastic factories have done a lot of work in the development of high wear-resistant and toughened PBT materials, but the modified results cannot meet the requirements

After searching, it is found that there is research on the improvement of nylon materials in the prior art. This technology is inconsistent with the research subject of the present invention. Nylon is mainly made of fibers, while PBT materials are thermoplastic polyesters. The common effect between the raw materials of the two products Not the same, can not be compared