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Low-gloss PC material and preparation method thereof

A low-gloss, formula technology, used in the chemical industry, can solve the problems of PC material toughness decline, affecting PC material performance, etc., and achieve the effects of good toughness, good matte surface effect, and simple preparation method.

Pending Publication Date: 2020-12-22
太仓市华鼎塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of a matting agent will affect the performance of the PC material and reduce the toughness of the PC material.

Method used

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  • Low-gloss PC material and preparation method thereof
  • Low-gloss PC material and preparation method thereof
  • Low-gloss PC material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5 and comparative example 1-7

[0022] Table 1 is the component and proportioning of embodiment 1-5 and comparative example 1-7, wherein, comparative example 1 and 2, add PA6 alone, do not add graft elastomer and superfine talcum powder; comparative example 3 and 4 are grafted elastomers added alone without adding PA6 and superfine talcum powder; comparative example 5 is added superfine talcum powder without adding PA6 and grafted elastomers; comparative example 6 is added BMAT without adding PA6, grafted elastomer and superfine talc; Comparative Example 7 without adding PA6, grafted elastomer, superfine talcum and BMAT.

[0023] Among them, the PC material is bisphenol A type PC.

[0024] Among them, the relative viscosity of PA6 material is 2-4.

[0025] Wherein, the grafted elastomer material is maleic anhydride grafted ethylene-octene copolymer.

[0026] Among them, the particle size of the superfine talcum powder is 1-5 microns; the black mother is a carrier-free black mother with a carbon black conce...

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Abstract

The invention provides a low-gloss PC material and a preparation method thereof. The low-gloss PC material is prepared from the following components in parts by weight through a twin-screw extruder: 73-93 parts of PC, 0-20 parts of PA6 (polyamide 6), 0-10 parts of grafted elastomer, 0-2 parts of superfine talcum powder, 1 part of black masterbatch and 0.2-0.5 part of antioxidant. According to thelow-gloss PC material, an expensive organic or inorganic delustering agent does not need to be added for delustering modification, the PC material is subjected to alloying modification only by addingany two or three of PA6, the grafted elastomer and the superfine talcum powder to achieve the matte effect, and compared with a PC material added with a delustering agent BMAT, the low-gloss PC material has better toughness; a mixed antioxidant of an antioxidant 1076 and an antioxidant 168 is also adopted, so that the antioxidant effect is better; and the preparation method of the low-gloss PC material is simple, used equipment is a common water brace twin-screw extruder, and large-scale production is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a low-gloss PC material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is a general-purpose engineering plastic with good mechanical properties. There are a large number of applications in various fields, such as glass assembly industry, automobile industry, electronic and electrical industry, industrial machinery parts, optical discs, packaging, computers and other office equipment, medical care, film, leisure and protective equipment, etc. It is well known that PC has a very high surface gloss, thus limiting its application in some low-gloss fields. [0003] At present, the low-gloss modification of PC is mainly achieved by adding organic or inorganic matting agents or matting agents. For example: Chinese patent document CN108047674B discloses a low-gloss, low-smoke, halogen-free flame-retardant polycarbonate composite...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L77/02C08L51/06C08K13/02C08K3/34C08K3/04C08K5/134C08K5/526
CPCC08L69/00C08L2205/03C08L2201/08C08L77/02C08L51/06C08K13/02C08K3/34C08K3/04C08K5/1345C08K5/526
Inventor 叶武徐卢碧赵小康时亚徐军万吴军
Owner 太仓市华鼎塑料有限公司
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