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Modified polycarbonate PC and method for preparing same

A polycarbonate and modified technology, applied in the field of modified polycarbonate PC and its preparation

Inactive Publication Date: 2008-11-19
HANGZHOU WEILIGUANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of LED digital displays and various special-shaped displays requires modified polycarbonate PC to have the characteristics of high light resistance, high temperature resistance, and deformation resistance. The existing modified polycarbonate PC cannot meet the above requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: modified polycarbonate PC, its component weight ratio is: in 100 parts, polycarbonate PC particle is 50 parts; Titanium dioxide is 20 parts; Glass fiber is 12 parts; ABS plastic particle is 8.7 6 parts; toughening agent 6 parts; dispersant 1.1 parts; compatibilizer 2 parts; antioxidant 0.19 parts; toner 0.01 parts. Wherein, the toughening agent is grafted POE, the dispersant is EMS, the compatibilizer is maleic anhydride grafted polyolefin, and the antioxidant is 1010. The preparation method comprises the following steps: (1) weighing the raw materials according to the weight ratio of the components; (2) putting polycarbonate PC particles and ABS plastic particles into a mixer according to the ratio and stirring; (3) adding titanium dioxide, glass Fiber, toughening agent, dispersant, compatibilizer, antioxidant, and toner are added to each raw material in sequence, mixed and stirred for 5-8 minutes; (4) melted and extruded by a twin-screw extruder, and the...

Embodiment 2

[0010] Embodiment 2: modified polycarbonate PC, its component weight ratio is: in 100 parts, polycarbonate PC particle is 58 parts; Titanium dioxide is 19 parts; Glass fiber is 10 parts; ABS plastic particle is 6 parts 4 parts; toughening agent 4 parts; dispersant 0.9 parts; compatibilizer 1.89 parts; antioxidant 0.2 parts; toner 0.01 parts. Refer to Example 1 for the rest.

Embodiment 3

[0011] Embodiment 3: modified polycarbonate PC, its component weight ratio is: in 100 parts, polycarbonate PC particle is 54.29 parts; Titanium dioxide is 20 parts; Glass fiber is 10 parts; ABS plastic particle is 7.5 parts parts; 5 parts of toughening agent; 1 part of dispersant; 2 parts of compatibilizer; 0.2 parts of antioxidant; 0.01 parts of toner. Refer to Example 1 for the rest. Preferred embodiment 3 of the present invention.

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Abstract

The invention relates to a modified polycarbonate (PC) and a method for preparing the same. The PC comprises the following components in portion by weight: based on a 100 portion total, 50 to 58 portions of polycarbonate granules, 17 to 23 portions of titanium dioxide, 8 to 12 portions of glass fiber, 5 to 10 portions of ABS plastic granules, 4 to 6 portions of toughener, 0.9 to 1.1 portions of dispersing agent, 1.8 to 2.2 portions of compatilizer, 0.18-0.22 portions of antioxidant, and 0.009-0.011 portion of toner. The method for preparing the same is mainly as follows: placing, according to proportion, polycarbonate granules and ABS plastic granules in to a stirring machine for mixing, adding raw materials in the sequence of the titanium dioxide, the glass fiber, the tougher, the dispersing agent, the compatilizer, the antioxidant and the toner, mixing the raw materials with stirring for 5 to 8 minutes, subjecting the mixture to fusion and extrusion by a double-screw extruder, and making granules. Compared with pure PC, the modified PC has the characteristics of high strength, high toughness, solvent resistance, resistance deformation, high opacity, excellent fluidity, high temperature resistance, etc. and is suitable for making LED digital displays and various special displays.

Description

technical field [0001] The invention relates to a modified polycarbonate PC and a preparation method thereof. Background technique [0002] In the prior art, many technical solutions for modifying polycarbonate PC have been disclosed. For example, a patent document with publication number CN101173089 records a technical solution for modification in terms of flame retardancy. The modified polycarbonate PC required to be used in LED digital displays and various special-shaped displays has the characteristics of high light resistance, high temperature resistance, and deformation resistance. The existing modified polycarbonate PCs cannot meet the above requirements. Contents of the invention [0003] The present invention mainly solves the technical problems in the above-mentioned prior art, and provides a modified polycarbonate PC and a preparation method thereof. [0004] The above-mentioned technical problem of the present invention is mainly solved by following technical ...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08K7/14B29B9/12C08L51/08C08L55/02C08L51/06
Inventor 瞿红兵
Owner HANGZHOU WEILIGUANG TECH
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