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Blow molding PMMA/ASA resin with ultrahigh melt strength and preparation method thereof

A technology of ASA resin and melt strength, which is applied in the field of blow molding PMMA/ASA resin composition and its preparation, can solve the problems of blow molding parison sagging and low melt strength, and achieve stable melt strength and high melt strength. High, consistent performance and controllable results

Inactive Publication Date: 2020-05-08
SHANGHAI PRET COMPOSITES +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a blow molding PMMA / ASA resin with ultra-high melt strength and a preparation method thereof, so as to solve the problems that the existing PMMA / ASA melt strength is not high and the blow molding parison droops

Method used

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  • Blow molding PMMA/ASA resin with ultrahigh melt strength and preparation method thereof
  • Blow molding PMMA/ASA resin with ultrahigh melt strength and preparation method thereof
  • Blow molding PMMA/ASA resin with ultrahigh melt strength and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] An ultra-high melt strength blow molding resin PMMA / ASA composition is prepared by using the following components and raw materials in parts by weight: 15 parts of ASA resin, 20 parts of AS resin, 60 parts of PMMA resin, 4 parts of compatibilizer, 0.1 part of processing aid, 0.1 part of weather resistance additive, and 1.0 part of black masterbatch.

[0043] Among the above raw materials, the weight average molecular weight of ASA resin is 300,000g / mol, the content of acrylate rubber is 45%, and the number average particle diameter of rubber is 150nm; the weight average molecular weight of AS resin is 5000,000g / mol; the weight average molecular weight of PMMA resin 150,000g / mol; compatibilizer is St / MAH-g-MMA graft copolymer, its weight average molecular weight is 80,000g / mol; St (styrene), St (maleic anhydride), MMA (methacrylic acid The molar ratio of methyl ester) in the polymer is 20:40:20.

[0044] (1) premixing the above-mentioned raw materials in a high-speed mi...

Embodiment 2

[0047]An ultra-high melt strength blow molding resin PMMA / ASA composition is prepared from the following components and raw materials in parts by weight: 35 parts of ASA resin, 20 parts of AS resin, 40 parts of PMMA resin, 4 parts of compatibilizer, 0.1 part of processing aid, 0.1 part of weather resistance additive, and 1.0 part of black masterbatch.

[0048] Among the above raw materials, the weight average molecular weight of ASA resin is 300,000g / mol, the content of acrylate rubber is 45%, and the number average particle diameter of rubber is 150nm; the weight average molecular weight of AS resin is 5000,000g / mol; the weight average molecular weight of PMMA resin 150,000g / mol; compatibilizer is St / MAH-g-MMA graft copolymer, its weight average molecular weight is 80,000g / mol; St (styrene), St (maleic anhydride), MMA (methacrylic acid The molar ratio of methyl ester) in the polymer is 20:40:20.

[0049] (1) premixing the above-mentioned raw materials in a high-speed mixer; ...

Embodiment 3

[0052] An ultra-high melt strength blow molding resin PMMA / ASA composition is prepared by using the following components and raw materials in parts by weight: 20 parts of ASA resin, 30 parts of AS resin, 45 parts of PMMA resin, 4 parts of compatibilizer, 0.1 part of processing aid, 0.1 part of weather resistance additive, and 1.0 part of black masterbatch.

[0053] Among the above raw materials, the weight average molecular weight of ASA resin is 300,000g / mol, the content of acrylate rubber is 45%, and the number average particle diameter of rubber is 150nm; the weight average molecular weight of AS resin is 5000,000g / mol; the weight average molecular weight of PMMA resin 150,000g / mol; compatibilizer is St / MAH-g-MMA graft copolymer, its weight average molecular weight is 80,000g / mol; St (styrene), St (maleic anhydride), MMA (methacrylic acid The molar ratio of methyl ester) in the polymer is 20:40:20.

[0054] (1) premixing the above-mentioned raw materials in a high-speed mi...

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Abstract

The invention relates to blow molding PMMA / ASA resin with ultrahigh melt strength and a preparation method of the blow molding PMMA / ASA resin. Raw materials comprise the following components in partsby weight: 15 to 35 parts of ASA rubber powder, 20 to 40 parts of AS resin, 40 to 60 parts of PMMA resin, 2.0 to 10.0 parts of a compatilizer, 0.05 to 2.0 parts of a processing aid, 0.05 to 2.0 partsof a weather-resistant aid and 0.5 to 2.5 parts of black master batch. The preparation method comprises the following steps: premixing the raw materials in a high-speed mixer, and passing the premix through a twin-screw extruder to obtain the blow molding PMMA / ASA resin composition with ultrahigh melt strength. The PMMA / ASA resin provided by the invention is high in melt strength, good in blow molding parison droop resistance and excellent in weather resistance and scratch resistance, is very suitable for blow molding parts such as automobile spoilers and spoilers, and has a spraying-free high-brightness black effect.

Description

technical field [0001] The invention relates to the technical field of polymer material processing, in particular to an ultra-high melt strength blow molding PMMA / ASA resin composition and a preparation method thereof. Background technique [0002] PMMA / ASA resin has excellent weather resistance, impact resistance and colorability, and it can be dyed with an appropriate amount of dyeing agent to obtain a high-gloss black, comparable to piano black spray paint effect without spraying. PMMA / ASA resin can be used to prepare spray-free, high-gloss black products through extrusion, injection molding, blow molding and other molding methods, so it is widely used in automobiles, electronic appliances, light industrial appliances and other fields, and can replace paint to greatly reduce costs . [0003] In recent years, with the promotion of automobile cost reduction and the strengthening of the country's control of environmental pollution, automobile rear fins and spoilers are gene...

Claims

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Application Information

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IPC IPC(8): C08L33/12C08L51/04C08L25/12C08L51/00
CPCC08L25/12C08L33/12C08L2205/02C08L2205/035C08L2205/08C08L51/04C08L51/003
Inventor 董雨生纪效均蔡青周文
Owner SHANGHAI PRET COMPOSITES
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