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Preparation method of impact resistant polycarbonate

A polycarbonate, impact-resistant technology, applied in the field of polymer materials, can solve the problems of low fatigue strength, low melting point and glass transition temperature, stress cracking, etc., and achieve the effect of improving mechanical strength

Inactive Publication Date: 2015-01-21
ZHONGSHAN NUODUN SCI RES TECH SERVICE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages are low fatigue strength, prone to stress cracking, high notch sensitivity, and poor wear resistance
Low melting point and glass transition temperature, poor strength, can not be used as structural material

Method used

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  • Preparation method of impact resistant polycarbonate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method of impact-resistant polycarbonate comprises the steps:

[0022] Step 1. Preparation of the prefabricated body: Take 20 Kg of fatty acid calcium, heat it to 150°C, then add 20 Kg of silicon oxide powder and 0.5 Kg of glass fiber, stir evenly, and after cooling, a modified powder is obtained; then the modified The powder and 10 Kg of polyethylene are initially mixed in a mixer, and then 5 Kg of ethylene bisstearamide and 5 Kg of chlorinated polyethylene are added. After heating up, mix evenly, and cool to room temperature to obtain a preform. The glass fiber The length is 10-500 microns;

[0023] Step 2, mix the prefabricated body, polycarbonate 40Kg, butanediol diacrylate 3Kg, antioxidant 0.5Kg, silane coupling agent KH-570 0.5Kg, and lubricant 0.5Kg evenly to obtain the mixture; The antioxidant is Antioxidant 1010;

[0024] The third step is to send the mixture into the twin-screw extruder for extrusion and granulation. The extrusion temperature...

Embodiment 2

[0027] The preparation method of impact-resistant polycarbonate comprises the steps:

[0028] Step 1. Preparation of prefabricated body: Take 30 Kg of fatty acid calcium, heat it to 170°C, then add 30 Kg of silicon oxide powder and 1 Kg of glass fiber, stir evenly, and after cooling, a modified powder is obtained; then the modified The powder and 20 Kg of polyethylene were initially mixed in a mixer, and then 10 Kg of ethylene bisstearamide and 10 Kg of chlorinated polyethylene were added. After heating up, they were mixed evenly and cooled to room temperature to obtain a preform. The glass fiber The length is 10-500 microns;

[0029] Step 2, mix the preform, polycarbonate 60Kg, butanediol diacrylate 5Kg, antioxidant 1Kg, silane coupling agent KH-570 1Kg, and lubricant 1Kg to obtain a mixture; The agent is antioxidant 1010;

[0030] The third step is to send the mixture into the twin-screw extruder for extrusion and granulation. The extrusion temperature of the twin-screw ex...

Embodiment 3

[0033] The preparation method of impact-resistant polycarbonate comprises the steps:

[0034] Step 1. Preparation of the prefabricated body: Take 25 Kg of fatty acid calcium, heat it to 160°C, then add 25 Kg of silicon oxide powder and 0.8 Kg of glass fiber, stir evenly, and obtain a modified powder after cooling; The powder and 15 Kg of polyethylene were initially mixed in a mixer, and then 8 Kg of ethylene bisstearamide and 7 Kg of chlorinated polyethylene were added. After heating up, they were mixed evenly and cooled to room temperature to obtain a preform. The glass fiber The length is 10-500 microns;

[0035] Step 2, mix the prefabricated body, polycarbonate 50Kg, butanediol diacrylate 4Kg, antioxidant 0.6Kg, silane coupling agent KH-570 0.8Kg, and lubricant 0.6Kg evenly to obtain the mixture; The antioxidant is Antioxidant 1010;

[0036] The third step is to send the mixture into the twin-screw extruder for extrusion and granulation. The extrusion temperature of the t...

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Abstract

The invention relates to a preparation method of impact resistant polycarbonate, and belongs to the technical field of high-molecular materials. The preparation method comprises the following steps: taking calcium fatty acids, heating, adding monox powder and glass fiber, uniformly mixing, and obtaining modified powder after cooling; initially mixing the modified powder and polyvinyl in a mixing machine, adding ethylene bis stearamide and chlorinated polyethylene, uniformly mixing after heating, and cooling to the room temperature to obtain a precast body; uniformly mixing the precast body, polycarbonate, butanediol diacrylate, an anti-oxidant, a silicane coupling agent and a lubricant to obtain a mixture; feeding the mixture into a double screw rod extruding machine for extrusion pelletization. According to the polycarbonate material provided by the invention, the monox particles are prepared into the precast body through the pre-wrapping method, and then the precast body and PC are subjected to extrusion, so that the mechanical strength is improved.

Description

[0001] technical field [0002] The invention relates to a preparation method of impact-resistant polycarbonate, which belongs to the technical field of polymer materials. [0003] Background technique [0004] Polycarbonate is one of the five general-purpose engineering plastics, and its output and consumption rank first among engineering plastics. Its comprehensive performance is excellent, especially with outstanding impact resistance, transparency and dimensional stability, excellent mechanical strength and electrical insulation, and a wide range of operating temperature (-60 ~ 120 ° C), etc., so since industrialization, quite favored by people. At present, the polycarbonate production capacity in the world has reached 2.5 million to 2.8 million tons, and the annual demand is about 3 million tons. It has been used in various fields of the national economy, including electronics, electrical, automobiles, construction, office machinery, packaging, transportation equipme...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L23/06C08L23/28C08K13/06C08K5/098C08K3/36C08K7/14C08K5/20B29C47/92B29C48/92
CPCB29C48/92B29C2948/92209C08G18/0823C08G18/10C08G18/3206C08G18/44C08G18/664C08G18/724C08G18/755C08G18/7614C08K3/34C08K7/24C08K13/04C08K2201/011C08K2201/014C08L69/00C08L2203/20C08L2205/02C08L2205/03C08L2205/035C09D4/06C09D7/61C09D7/63C09D7/65C09D7/70C09D133/00C09D163/10F21K9/00F21S2/00F21S6/004F21S6/005F21S8/033F21S8/036F21S8/061F21S8/063F21S8/065F21S8/08F21S8/081F21V3/04F21V3/062F21V15/00F21V17/10F21V17/104F21V17/12F21V17/16F21V17/164F21V19/001F21V19/0015F21V19/0025F21V21/10F21V21/104F21V23/00F21V33/00C08L23/06C08L23/286C08K13/06C08K9/04C08K7/14C08K5/20C08F283/006C08K5/098C08K3/36C08K5/103C08L75/04C08L33/00C08L23/26C08F291/12C08K9/02
Inventor 胡运冲
Owner ZHONGSHAN NUODUN SCI RES TECH SERVICE CO LTD
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