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Micro-foaming PA/ASA (polyamide/acrylonitrile styrene acrylate) material and preparation method thereof

A technology of micro-foaming and ASA resin, applied in the field of special hand-feeling micro-foaming PA/ASA material and its preparation, to achieve the effects of high weather resistance, good compatibility and excellent mechanical properties

Inactive Publication Date: 2015-06-24
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a special hand-feeling micro-foamed PA / ASA material and its preparation method, which solves the problem of processing stability in the preparation process of the existing PA / ASA materials, and the prepared product has dimensional stability Good, high impact strength, excellent weather resistance, easy molding and processing, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 55 parts of PA resin

[0035] ASA resin 30 parts

[0036] Toughener POE grafted maleic anhydride 10 parts

[0037] Antioxidant 1098 0.4 parts

[0038] Lubricant pentaerythritol stearate 0.3 parts

[0039] Compatibility agent ABS-g-MAH 5 parts

[0040] Blowing agent azodicarbonamide 0.1 part

[0041] The preparation method is as follows:

[0042] (1) After mixing the PA resin, toughening agent, lubricant and antioxidant according to the formula ratio, add them to the twin-screw extruder, and then extrude, cool, air dry, and pellet to obtain toughened PA material ;

[0043] (2) After the toughened PA material, ASA resin and compatibilizer are mixed uniformly, they are added to the twin-screw extruder, and after melting, they are extruded, cooled, air-dried, and pelletized to obtain PA / ASA composite materials;

[0044] (3) The PA / ASA composite material and the foaming agent are mixed uniformly, and then injection molded in an injection molding machine to obtain an injection-grade micro-...

Embodiment 2

[0046] 65 parts of PA resin

[0047] ASA resin 20 parts

[0048] Toughener POE grafted maleic anhydride 10 parts

[0049] Antioxidant 1098 0.4 parts

[0050] Lubricant N, N-supported bis-stearamide 0.2 parts

[0051] Compatibility agent ASA-g-MAH 5 parts

[0052] Foaming agent azodimethyl diisopropyl ester 0.5 parts

[0053] The preparation method is the same as in Example 1.

Embodiment 3

[0055] 60 parts of PA resin

[0056] ASA resin 20 parts

[0057] Toughening agent POE grafted maleic anhydride 15 parts

[0058] Antioxidant 1098 0.4 parts

[0059] Lubricant pentaerythritol stearate 0.3 parts

[0060] Compatibility agent ASA-g-MAH 5 parts

[0061] Blowing agent azodimethyl diisopropyl ester 1 part

[0062] The preparation method is the same as in Example 1.

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PUM

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Abstract

The invention discloses a micro-foaming PA / ASA (polyamide / acrylonitrile styrene acrylate) material and a preparation method thereof. The micro-foaming PA / ASA material is prepared from PA resin, ASA resin, a toughening agent, a lubricating agent, a compatilizer, an antioxidant and a foaming agent in parts by weight by virtue of two-step method fusion and extrusion as well as injection molding. The toughness of the material is improved, and the material has excellent mechanical properties of both PA and ASA, and is stable in size, good in fluidity and excellent in weathering resistance; and meanwhile, the problems of poor fluidity and shrinkage marks during injection molding of a PA / ASA product are solved, so that the micro-foaming PA / ASA material can be widely applied to the fields of automobiles, electronic appliances, electric tools and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a special hand-feel micro-foaming PA / ASA material and a preparation method thereof. Background technique [0002] Polyamide (PA), commonly known as nylon (Nylon), is the most commonly used plastic among the five major engineering plastics, and is widely used in machinery, instrumentation, electric tools, automobiles and other industries. It has many advantages such as wear resistance, oil resistance, self-lubrication, and excellent mechanical properties, but its shortcomings such as high water absorption, poor dimensional stability, and insufficient aging resistance also limit its application. [0003] ASA resin is obtained by melt blending of styrene-acrylonitrile-acrylate copolymer and styrene-acrylonitrile polymer. Compared with ABS, acrylate without double bond is introduced instead of butadiene, making ASA's The weather resistance has been fundamenta...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08L51/00C08L51/06C08J9/10
CPCC08L77/02C08J9/0061C08J9/102C08J9/103C08J2203/04C08J2377/02C08J2377/06C08J2451/00C08L77/06C08L2201/08C08L2203/14C08L2205/025C08L2205/035C08L2205/08C08L51/00C08L51/06C08L55/02C08L51/04C08L51/003C08L91/06
Inventor 黄骎李荣群任东方魏子芳文听雷
Owner ORINKO NEW MATERIAL CO LTD
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