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 resis

Method used

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  • Preparation method of impact resistant polycarbonate

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

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

[0022] Step 1. Preparation of the preform: take 20 Kg of fatty acid calcium, heat to 150°C, then add 20 Kg of silica powder and 0.5 Kg of glass fiber, stir evenly, and cool to obtain modified powder; The powder and polyethylene 10 Kg are initially mixed in the mixer, and then 5 Kg of ethylene bis-stearamide and 5 Kg of chlorinated polyethylene are added. After the temperature is raised, the mixture is evenly mixed and cooled to room temperature to obtain a preform. The length is 10~500 microns;

[0023] Step 2: Mix the preform, 40Kg of polycarbonate, 3Kg of butanediol diacrylate, 0.5Kg of antioxidant, 0.5Kg of silane coupling agent KH-570, and 0.5Kg of lubricant to obtain a mixture; The antioxidant is antioxidant 1010;

[0024] The third step is to feed the mixture into a twin-screw extruder for extrusion and granulation, that is, the extrusion temperature of the twin-...

Example Embodiment

[0026] Example 2

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

[0028] Step 1. Preparation of the preform: take 30 Kg of fatty acid calcium, heat to 170°C, then add 30 Kg of silica powder and 1 Kg of glass fiber, stir evenly, and cool to obtain a modified powder; The powder and polyethylene 20 Kg are initially mixed in a mixer, then 10 Kg of ethylene bis-stearamide and 10 Kg of chlorinated polyethylene are added. After the temperature is raised, the mixture is evenly mixed and cooled to room temperature to obtain a preform. The glass fiber The length is 10-500 microns;

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

[0030] The third step is to feed the mixture into a twin-screw extruder for extrusion and granulation, that is, the extrusion temperatur...

Example Embodiment

[0032] Example 3

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

[0034] Step 1. Preparation of the preform: take 25 Kg of fatty acid calcium, heat it to 160℃, then add 25 Kg of silica powder and 0.8 Kg of glass fiber, stir evenly, and cool to obtain a modified powder; The powder and 15 Kg of polyethylene are initially mixed in the mixer, and then 8 Kg of ethylene bis-stearamide and 7 Kg of chlorinated polyethylene are added. After the temperature is raised, the mixture is evenly mixed and cooled to room temperature to obtain a preform. The glass fiber The length is 10-500 microns;

[0035] Step 2: Mix the preform, 50Kg of polycarbonate, 4Kg of butanediol diacrylate, 0.6Kg of antioxidant, 0.8Kg of silane coupling agent KH-570, and 0.6Kg of lubricant to obtain a mixture; The antioxidant is antioxidant 1010;

[0036] The third step is to feed the mixture into a twin-screw extruder for extrusion and granulation, that is, the extrusion 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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