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Polycarbonate composition and preparation method thereof

A technology of polycarbonate and composition, which is applied in the field of scratch-resistant, high-gloss, high-toughness polycarbonate composition and its preparation, which can solve the limitation of PC/PMMA alloy material application and insufficient impact toughness of PC/PMMA alloy , Difficulty in uniform mixing, etc., to achieve the effect of improving surface scratch resistance, improving compatibility and toughness, and improving compatibility

Active Publication Date: 2019-09-06
GUANGDONG ALDEX NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biggest difficulty in preparing PC / PMMA alloy materials with excellent performance lies in the poor compatibility of the two, and it is very difficult to achieve uniform mixing.
Patent 201210295454.7 discloses a PC / PMMA / AS alloy and its preparation method, adding ethylene-methyl acrylate copolymer (EMA) and ethylene-methyl acrylate copolymer grafted glycidyl methacrylate (GMA) when blending -g-EMA) compatibilization and toughening to obtain a high hardness and high fluidity alloy, although this method improves the surface hardness and processability of the alloy, the gloss of the prepared alloy is relatively poor
Patent 201510413851.3 discloses a PC / PMMA with scratch resistance and high transmittance obtained by adding PMMA and maleic anhydride-styrene-methyl methacrylate terpolymer (MAH-St-MMA) to PC alloy, but this method fails to reasonably solve the problem of insufficient impact toughness of PC / PMMA alloy
Existing PC / PMMA alloy materials are difficult to balance gloss, scratch resistance and toughness, which greatly limits the application of PC / PMMA alloy materials

Method used

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  • Polycarbonate composition and preparation method thereof
  • Polycarbonate composition and preparation method thereof
  • Polycarbonate composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This embodiment provides a kind of high gloss, scratch resistance, high tenacity polycarbonate composition, and its raw material composition and parts by weight are:

[0062]

[0063]

[0064] The preparation method of the high-gloss, scratch-resistant, high-toughness polycarbonate composition of the present embodiment may further comprise the steps:

[0065] (1) Dry PC resin at 120°C for 4 hours, PMMA resin and PMPA resin at 80°C for 4 hours, after cooling, accurately weigh the materials according to the stated ratio, and then add them to a high-speed mixer for pre-mixing ( The rotation speed is 50rpm);

[0066] (2) Add compatibilizer SAG-002, toughening agent ASA-600A, anti-scratch agent SI-S50, anti-scratch agent KJ-B01, antioxidant 1076, antioxidant 168 and lubricant PETS into another After carrying out pre-mixing (rotating speed is 50rpm) in a high-speed mixer, gained mixture is joined in the high-speed mixer in step (1) and mixes (rotating speed is 50rpm); ...

Embodiment 2

[0069] This embodiment provides a kind of high gloss, scratch resistance, high tenacity polycarbonate composition, and its raw material composition and parts by weight are:

[0070]

[0071]

[0072] The preparation method of the high-gloss, scratch-resistant, high-toughness polycarbonate composition of the present embodiment may further comprise the steps:

[0073] (1) Bake PC resin at 120°C for 4h, PMMA and PMPA resin at 80°C for 4h, after cooling, accurately weigh the materials according to the stated ratio, and then add them to a high-speed mixer for pre-mixing (rotating speed 50rpm);

[0074] (2) Add compatibilizer SAG-002, toughening agent ASA-600A, anti-scratch agent SI-S50, anti-scratch agent KJ-B01, antioxidant 1076, antioxidant 168 and lubricant PETS into another After carrying out pre-mixing (rotating speed is 50rpm) in a high-speed mixer, gained mixture is joined in the high-speed mixer in step (1) and mixes (rotating speed is 50rpm);

[0075] (3) Transfer ...

Embodiment 3

[0077] This embodiment provides a kind of high gloss, scratch resistance, high tenacity polycarbonate composition, and its raw material composition and parts by weight are:

[0078]

[0079] The preparation method of the high-gloss, scratch-resistant, high-toughness polycarbonate composition of the present embodiment may further comprise the steps:

[0080] (1) Bake PC resin at 120°C for 4h, PMMA and PMPA resin at 80°C for 4h, after cooling, accurately weigh the materials according to the stated ratio, and then add them to a high-speed mixer for pre-mixing (rotating speed 50rpm);

[0081] (2) Add compatibilizer SAG-002, toughening agent ASA-600A, anti-scratch agent SI-S50, anti-scratch agent KJ-B01, antioxidant 1076, antioxidant 168 and lubricant PETS into another After carrying out pre-mixing (rotating speed is 50rpm) in a high-speed mixer, gained mixture is joined in the high-speed mixer in step (1) and mixes (rotating speed is 50rpm);

[0082] (3) Transfer the mixture ...

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Abstract

The invention relates to a polycarbonate composition and a preparation method thereof. The polycarbonate composition is prepared from, by weight, 52-72 parts of polycarbonate resin (PC), 20-30 parts of polymethyl methacrylate resin (PMMA), 8-18 parts of a methyl methacrylate-phenyl methacrylate copolymer (PMPA), 2-8 parts of a styrene-acrylonitrile-glycidyl methacrylate copolymer (SAG), 2-8 partsof a toughening agent, 0.5-4 parts of an anti-scratch agent, 0.1-1 part of an antioxidant and 0.1-1 part of a lubricant. The prepared polycarbonate composition has the advantages of high toughness, high gloss and excellent scratch resistance, and achieves a good application effect and prospect in the fields of automobiles, electronic appliances, instruments and meters, packaging and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polycarbonate composition with high gloss, scratch resistance and high toughness and a preparation method thereof. Background technique [0002] Polycarbonate (Polycarbonate, PC) is an amorphous thermoplastic engineering plastic with excellent performance. It has outstanding impact resistance, creep resistance and dimensional stability, good heat resistance, high transparency, and good dielectric properties. , is the fastest growing general engineering plastics in recent years. At present, it is widely used in automobiles, electronics, construction, office equipment, packaging, sports equipment, medical care and other fields, but unmodified polycarbonate still has many deficiencies, mainly in the lack of processing fluidity and stress resistance. Poor cracking, poor chemical resistance, low surface hardness, not resistant to scratches and other shortcomings. [0003...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L33/12C08L25/14C08L51/04C08K5/134C08K5/526
CPCC08L69/00C08L2205/035C08L33/12C08L25/14C08L51/04C08K5/1345C08K5/526
Inventor 邹永昆韩春春冯刚陈欣
Owner GUANGDONG ALDEX NEW MATERIAL CO LTD
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