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PC + PBT (Polycarbonate + Polybutylene Terephthalate) polymer resin with high abrasion resistance and preparation process thereof

A technology of polymer resin and preparation process, applied in the field of resin modification, can solve the problems of insufficient hydrolysis resistance, poor scratch resistance, notch sensitivity, etc., achieve weather resistance dimensional stability and mechanical properties, improve toughness and Effect of friction resistance and high heat resistance

Inactive Publication Date: 2022-06-10
广州搜料信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main performance defect is that the main performance defect of PC is that the stability of hydrolysis resistance is not high enough, it is sensitive to notch, resistance to organic chemicals, poor scratch resistance, and it will turn yellow when exposed to ultraviolet rays for a long time

Method used

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  • PC + PBT (Polycarbonate + Polybutylene Terephthalate) polymer resin with high abrasion resistance and preparation process thereof
  • PC + PBT (Polycarbonate + Polybutylene Terephthalate) polymer resin with high abrasion resistance and preparation process thereof
  • PC + PBT (Polycarbonate + Polybutylene Terephthalate) polymer resin with high abrasion resistance and preparation process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A kind of preparation technology of PC+PBT polymer resin with high abrasion resistance

[0029] 1) Raw material surface pretreatment:

[0030] Mix polycarbonate with 30wt% sodium gluconate, heat up to 250°C, add 25wt% cetyltrimethylammonium chloride after stirring evenly, feed into a twin-screw extruder, mix at 250°C, and finally extrude. out into granules;

[0031] Mix polybutylene terephthalate with 30wt% sodium gluconate, heat up to 260°C, stir evenly, add 30wt% cetyltrimethyl ammonium chloride, feed into a twin-screw extruder at a temperature of 260°C Lower mixing, and finally extruded into granules;

[0032] 2) Preparation of toughening aids: Mix 40% nano molybdenum disulfide powder, 13% glycerol monooleate and 13% tridecafluorooctyltriethoxysilane, heat up to 125°C for ultrasonic stirring treatment, stop Ultrasonic, constant temperature stirring, then heating up to 155 ° C, adding 14% calcium stearate and continuing constant constant stirring to obtain a homoge...

Embodiment 2

[0035] A kind of preparation technology of PC+PBT polymer resin with high abrasion resistance

[0036] 1) Raw material surface pretreatment:

[0037] Mix polycarbonate with 30wt% sodium gluconate, heat up to 240°C, add 25wt% cetyltrimethyl ammonium chloride after stirring evenly, feed into a twin-screw extruder, mix at 240°C, and finally extrude. out into granules;

[0038] Mix polybutylene terephthalate with 30wt% sodium gluconate, heat up to 250°C, stir evenly, add 30wt% cetyltrimethyl ammonium chloride, feed into a twin-screw extruder at a temperature of 250°C Lower mixing, and finally extruded into granules;

[0039] 2) Preparation of toughening aids: Mix 38% nano molybdenum disulfide powder, 15% glycerol monooleate and 15% tridecafluorooctyltriethoxysilane, heat up to 100°C for ultrasonic stirring treatment, stop Ultrasonic, constant temperature stirring, then heating up to 135 ° C, adding 15% zinc stearate and continuing constant constant stirring to obtain a homogene...

Embodiment 3

[0042]A kind of preparation technology of PC+PBT polymer resin with high abrasion resistance

[0043] 1) Raw material surface pretreatment:

[0044] Mix polycarbonate with 30wt% sodium gluconate, heat up to 245°C, add 25wt% cetyltrimethyl ammonium chloride after stirring evenly, feed into a twin-screw extruder, mix at 245°C, and finally extrude. out into granules;

[0045] Mix polybutylene terephthalate and 30wt% sodium gluconate, heat up to 255°C, stir evenly, add 30wt% cetyltrimethyl ammonium chloride, feed into a twin-screw extruder at 255°C Lower mixing, and finally extruded into granules;

[0046] 2) Preparation of toughening aid: Mix 42% nano molybdenum disulfide powder, 14% monolaurate glyceride and 14% heptadecafluorodecyltrimethoxysilane, heat up to 110°C for ultrasonic stirring treatment, stop ultrasonic , stir at constant temperature, then heat up to 140 ° C, add 15% zinc stearate and continue stirring at constant temperature to obtain a homogeneous material, the...

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Abstract

The invention belongs to the technical field of resin modification, and particularly relates to high-abrasion-resistance PC + PBT (Polycarbonate + Polybutylece Terephthalate) polymer resin and a preparation process thereof. In the prepared toughening aid, after nano molybdenum disulfide powder is dispersed by adopting a dispersing agent, the nano molybdenum disulfide powder is mixed with fluorine-containing silane to form a wrapping structure for molybdenum disulfide, and formed polycarbonate, polybutylene terephthalate and hydroxyl-terminated polybutadiene react under the action of the toughening aid and a cross-linking agent, so that the toughness of the toughening aid is improved. The components are physically combined on a phase interface, so that the physical binding force of the phase interface of the polycarbonate and the polybutylene terephthalate is improved, and the toughness and the friction resistance of the PC + PBT polymer resin are improved; on the basis that polycarbonate and polybutylene terephthalate have high heat resistance, chemical resistance, weather resistance and excellent dimensional stability and mechanical properties, the tensile capacity and fatigue resistance of polycarbonate are enhanced, and the prepared PC + PBT polymer resin can be applied to outer parts of automobiles.

Description

technical field [0001] The invention belongs to the technical field of resin modification, in particular to a PC+PBT polymer resin with high abrasion resistance and a preparation process thereof. Background technique [0002] Polycarbonate, also known as PC plastic, is colorless, transparent, heat-resistant, impact-resistant, flame-retardant BI grade, and has good mechanical properties at ordinary use temperatures. Its main performance defect is that the main performance defect of PC is that the hydrolysis resistance stability is not high enough, it is sensitive to notch, organic chemical resistance, scratch resistance is poor, and it will turn yellow when exposed to ultraviolet rays for a long time. Like other resins, PC is susceptible to attack by certain organic solvents. And compared with most plastic materials, the wear resistance of polycarbonate is relatively poor, at the middle and lower level, so some polycarbonate devices used for wear-resistant purposes need spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08K9/06C08K9/04C08K3/30C08G64/42C08G63/91
CPCC08L69/00C08G64/42C08G63/916C08K2003/3009C08K2201/011C08L67/02C08K9/06C08K9/04C08K3/30
Inventor 谢玉辉童大山
Owner 广州搜料信息技术有限公司
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