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Process for preparing polycarbonate/styrene-acrylonitrile copolymer alloy

A polycarbonate and styrene technology, applied in the field of polymer processing, can solve problems such as poor weather resistance, and achieve the effects of simplifying processing technology, improving processing performance, and good weather resistance

Inactive Publication Date: 2007-05-16
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the double bonds contained in ABS, its weather resistance is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0021] According to the formula in Table 1, polycarbonate, SAN, SEPTON8006, Irganox 1010 and Irganox 168 enter the twin-screw extruder after being uniformly mixed by a high-speed mixer. The processing conditions of the twin-screw extruder are as follows: the first zone temperature 20- 30°C, the temperature in the second zone is 240°C, the temperature in the third zone is 250°C, the temperature in the fourth zone is 250°C, the temperature in the fifth zone is 250°C, the temperature in the sixth zone is 250°C, the temperature in the seventh zone is 255°C, the temperature in the eighth zone is 255°C, and the temperature in the ninth zone is 240°C ; The residence time is 3 minutes, and the host speed is 200 rpm. After extrusion, cooling, drying, and pelletizing, the polycarbonate / styrene-acrylonitrile copolymer alloy is obtained, and its properties are shown in Table 1.

Embodiment 5

[0023] According to the formula in Table 1, polycarbonate, SAN, SEPTONS006, Irganox 1010 and Irganox 168 enter the twin-screw extruder after being uniformly mixed by a high-speed mixer. The processing conditions of the twin-screw extruder are as follows: the first zone temperature 20- 30°C, the temperature in the second zone is 245°C, the temperature in the third zone is 255°C, the temperature in the fourth zone is 255°C, the temperature in the fifth zone is 255°C, the temperature in the sixth zone is 255°C, the temperature in the seventh zone is 260°C, the temperature in the eighth zone is 260°C, the temperature in the ninth zone is 245°C ; The residence time is 3 minutes, and the host speed is 200 rpm. After extrusion, cooling, drying, and pelletizing, the polycarbonate / styrene-acrylonitrile copolymer alloy is obtained, and its properties are shown in Table 1.

Embodiment 6

[0025] According to the formula in Table 1, polycarbonate, SAN, SEPTON4055, Irganox 1010 and Irganox 168 enter the twin-screw extruder after being uniformly mixed by a high-speed mixer. The processing conditions of the twin-screw extruder are as follows: the temperature in the first zone is 20- 30°C, the temperature in the second zone is 240°C, the temperature in the third zone is 250°C, the temperature in the fourth zone is 250°C, the temperature in the fifth zone is 250°C, the temperature in the sixth zone is 250°C, the temperature in the seventh zone is 255°C, the temperature in the eighth zone is 255°C, and the temperature in the ninth zone is 240°C ; The residence time is 3 minutes, and the host speed is 200 rpm. After extrusion, cooling, drying, and pelletizing, the polycarbonate / styrene-acrylonitrile copolymer alloy is obtained, and its properties are shown in Table 1.

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PUM

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Abstract

The invention discloses a preparing method of PC / SAN alloy, which is characterized by the following: making segmented copolymer of hydrogenated butadiene rubber without double bond and phenylethene or segmented copolymer of hydrogenated polyisoprene and phenylethene directly with polycarbonate, phenylethene-acrylon copolymer and anti-oxidant in the double-screw squeezer to prepare the product; simplifying the manufacturing technology with good mechanic and manufacturing property; improving alloy phase rate of PC / ABS; increasing fracture growing rate by 300%.

Description

technical field [0001] The invention relates to a method for preparing a polymer alloy, in particular to a method for preparing a polycarbonate / styrene-acrylonitrile copolymer alloy, and belongs to the technical field of polymer processing. Background technique [0002] How to realize the modification of polycarbonate through blending technology and endow it with better comprehensive performance is a problem that people pay attention to. There are many reports on the modification of PC at home and abroad, and a variety of PC alloys have been developed, such as PC / ABS (acrylonitrile-butadiene-styrene copolymer), PC / PBT (polybutylene terephthalate). ester), PC / PET (polyethylene terephthalate), PC / PE (polyethylene), PC / PMMA (polymethyl methacrylate), PC / PA (polyamide), etc. [0003] Due to its poor processing performance and low impact strength, PC / SAN alloy cannot be directly used as engineering plastics, but only as a simplified system for studying the compatibility of PC / AB...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L25/12C08K5/524B29C47/92C08K5/10B29C48/92
CPCB29C47/92B29C48/40
Inventor 殷年伟张勇张隐西张祥福周文
Owner SHANGHAI JIAO TONG UNIV
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