Special compatibilizer and alloy for improving hydrolytic thermal stability of pc/abs alloy

A stability and compatibilizer technology, applied in the field of special compatibilizers and alloys, can solve the problems of black spots or gel points of materials, the need for master batches in use, insufficient heat resistance, etc., and achieve high use efficiency and high use Low cost, good cost-effective effect

Inactive Publication Date: 2017-01-18
SHANGHAI SUNNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its use cost is high, its use needs to be masterbatched, and its molecular weight is relatively low: the heat resistance in the material is also insufficient. When the amount is slightly larger, processing may easily lead to problems such as black spots or gel points in the material.

Method used

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  • Special compatibilizer and alloy for improving hydrolytic thermal stability of pc/abs alloy
  • Special compatibilizer and alloy for improving hydrolytic thermal stability of pc/abs alloy
  • Special compatibilizer and alloy for improving hydrolytic thermal stability of pc/abs alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0034] The PC resin is PCI250WP (the relative number average molecular weight is 22,000g / mol, and the glass transition temperature is 140°C) from Teijin Corporation of Japan; the ABS resin is P / D190 (the relative weight average molecular weight is 120,000g / mol , wherein the weight percentage content of butadiene is 50%, the weight percentage content of acrylonitrile is 15%, and the weight percentage content of styrene is 35%.

[0035] Table 1 Raw materials and proportions of Examples 1 to 4

[0036] raw material name Example 1 (wt%) Example 2 (wt%) Example 3 (wt%) Example 4 (wt%) PC 70 70 70 70 ABS 29.3 28.8 28.3 27.3 ST-AN-6MA Terpolymer 1 0 0.5 1 2 antioxidant 0.3 0.3 0.3 0.3 lubricant 0.4 0.4 0.4 0.4

[0037] Put the above components into the high mixer according to the proportion and mix them for 1-5 minutes, discharge the material, then extrude and granulate with a screw extruder, the processing temperature ...

Embodiment 5～7

[0046] The PC resin is PCI250WP (the relative number average molecular weight is 22,000g / mol, and the glass transition temperature is 140°C) from Teijin Corporation of Japan; the ABS resin is P / D190 (the relative weight average molecular weight is 120,000g / mol , wherein the weight percentage content of butadiene is 50%, the weight percentage content of acrylonitrile is 15%, and the weight percentage content of styrene is 35%.

[0047] Table 3 Raw materials and proportioning of Examples 5-7

[0048] raw material name Example 5 (wt%) Embodiment 6 (wt%) Example 7 (wt%) PC 70 70 70 ABS 28.8 28.8 28.8 ST-AN-GMA Terpolymer 2 0.5 ST-AN-GMA Terpolymer 3 0.5 SMA 0.5 antioxidant 0.3 0.3 0.3 lubricant 0.4 0.4 0.4

[0049] Put the above components into the high mixer according to the proportion and mix them for 1-5 minutes, discharge the material, then extrude and granulate with a screw extruder, the process...

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Abstract

The invention discloses a special compatilizer for improving hydrolysis heat stability of a PC / ABS (polycarbonate / acrylonitrile-butadiene-styrene) alloy and an alloy. The compatilizer is a terpolymer formed by copolymerizing aromatic vinyl monomer, acrylonitrile monomer and glycidyl methacrylate. The PC / ABS alloy with high hydrolysis heat stability comprises the following components in percentage by weight: 50-85% of PC, 10-45% of ABS, 0.5-5% of compatilizer, 0.1-1% of antioxidant and 0.1-0.5% of lubricant. Compared with the prior art, the special compatilizer for the PC / ABS alloy can be blended with other raw materials and subjected to extrusion and granulation in the preparation process to obtain the PC / ABS alloy with excellent hydrolysis heat stability on the premise of maintaining excellent mechanical properties in a simple, effective, convenient and cheap way.

Description

technical field [0001] The invention relates to a special compatibilizer and alloy for improving the hydrolytic thermal stability of PC / ABS alloy. Background technique [0002] PC / ABS combines the comprehensive characteristics of both PC and ABS. Compared with PC, it improves fluidity, improves processing performance, and reduces the sensitivity of products to stress. Compared with ABS, it has more excellent thermal stability. . Therefore, it can be used in many fields such as household appliances, office equipment, communication equipment, photographic equipment, medical equipment, construction and lighting appliances, aerospace, electronic computers, and optical fibers. Especially in high-strength, high-heat-resistant parts such as automotive interiors, exteriors, and lights, it has been widely used. [0003] In recent years, the PC / ABS market has maintained a growth rate of more than 10%. With the development of industries such as automobiles and home appliances, people...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L25/04C08L25/16C08L25/18B29C47/92B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92619B29C2948/92704C08L69/00C08L2201/08C08L2205/03C08L2205/035C08L2205/08C08L55/02C08L25/12C08L83/04C08L91/06C08L35/06
Inventor 段浩汤俊杰苏吉英
Owner SHANGHAI SUNNY
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