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Sandwich injection foamed ABS microporous foam with high weathering resistance and preparation method

A technology of injection foaming and microcellular foam is applied in the field of polymer composite material processing, which can solve the problems of high cost and poor weather resistance, and achieve the effect of reducing production costs, meeting market demands, and facilitating large-scale industrial production.

Active Publication Date: 2017-12-22
东莞市腾升塑胶五金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the technical defects of high cost and poor weather resistance of ABS composite materials in the prior art, the present invention proposes a sandwich injection foamed high weather resistance ABS microcellular foam and its preparation method. The surface layer is obtained by using a special injection molding process. ABS microporous foam coated with ASA, thereby improving the weather resistance of ABS resin materials and reducing the cost of raw materials

Method used

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  • Sandwich injection foamed ABS microporous foam with high weathering resistance and preparation method
  • Sandwich injection foamed ABS microporous foam with high weathering resistance and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] (1) Use 0.5 parts of toner to color match the ASA resin with a rubber phase acrylate content of 30%. The toner in the embodiment is selected from at least one of red-like toner, yellow-like toner, blue-like toner, green-like toner, white-like toner and black-like toner, wherein the type of toner raw material As follows, red toner: at least one of cadmium red, cadmium silver vermilion, iron oxide red, permanent red, Lisol red, Lisol purple red, Lisol red; yellow toner: chrome yellow At least one of , Hansa yellow, benzidine, permanent yellow, fluorescent yellow; blue toner: at least one of iron blue, cobalt blue, phthalocyanine blue; green toner: chrome green, phthalocyanine At least one of cyanine green G, fluorescent green GG; white toner: at least one of lithopone, zinc oxide ZnO, titanium dioxide; black toner: at least one of carbon black, benzidine black, In this embodiment, the red toner iron oxide red is used as an example for illustration. Those skilled in the a...

Embodiment 2

[0044] (1) Use ASA resin with a rubber phase acrylate content of 370% to melt, pressurize the movable column 02 in the injection cavity 01, fill the movable column 02 into the injection cavity 01, and the injection cavity 01 is in a filled state, Such as figure 1 As shown, 14 parts of molten ASA resin is injected from the gate 03 of the injection cavity 01, and filled into the gap between the movable column 02 and the inner wall of the injection cavity 01 as a cladding layer; the movable column 02 and the cavity of the injection cavity 01 The gap width of the wall is 0.3mm, and the length of the movable column 02 is greater than or equal to the length of the injection molding cavity 01. The cross-sectional shape of the movable column 02 is one of circular, elliptical, and polygonal. In this embodiment, the cross-sectional shape of the movable column is preferably circular.

[0045] (2) Prepare ABS melt. The ABS melt contains 5 parts of expanded microspheres, which are filled...

Embodiment 3

[0050] (1) Use 3 parts of toner to color match the ASA resin with a rubber phase acrylate content of 50%. The toner in the embodiment is selected from at least one of red-like toner, yellow-like toner, blue-like toner, green-like toner, white-like toner and black-like toner, wherein the type of toner raw material As follows, red toner: at least one of cadmium red, cadmium silver vermilion, iron oxide red, permanent red, Lisol red, Lisol purple red, Lisol red; yellow toner: chrome yellow , Hansa yellow, benzidine, permanent yellow, and fluorescent yellow; blue toner: at least one of iron blue, cobalt blue, and phthalocyanine blue; green toner: chrome green, phthalocyanine At least one of cyanine green G, fluorescent green GG; white toner: at least one of lithopone, zinc oxide ZnO, titanium dioxide; black toner: at least one of carbon black, benzidine black, In this embodiment, the selection of green toner chrome green is taken as an example for illustration. Those skilled in t...

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Abstract

The invention provides sandwich injection foamed ABS (acrylonitrile-butadiene-styrene) microporous foam with high weathering resistance and a preparation method. The foam comprises the following components: ABS resin, ASA (acrylonitrile-styrene-acrylate) resin, a compatilizer, an antioxidant, and expansion microspheres. A bi-component injection molding machine which has two sets of injection molding devices is adopted, firstly, the ASA is injected by using one set of the devices to be used as a covering skin layer, secondly, ABS resin which is mixed with the expansion microspheres and other auxiliary agents is injected through a same sprue gate, then a small amount of an ASA melting material is injected for sealing a mold, and finally, the sandwich-structure ABS foam composite material which uses the ASA resin as the covering skin layer and the ABS resin as a core layer is prepared. The method provided by the invention adopts a special injection molding process, and adopts a small amount of the ASA resin with high weathering resistance, thus a shortcoming that the ABS has relatively bad weathering resistance is greatly made up, technical defects in the prior art that the ABS has relatively bad weathering resistance and ABS composite materials have relatively high costs are overcome, weathering resistance of the ABS resin material is further improved, raw material usage costs are reduced as well, and the method has a simple process scheme, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of polymer composite material processing, in particular to a sandwich injection foamed high weather resistance ABS microporous foam and a preparation method. Background technique [0002] ABS is a general-purpose thermoplastic engineering plastic developed in the 1940s. It is a plastic variety with excellent comprehensive mechanical properties. It not only has good rigidity, hardness and processing fluidity, but also has high toughness. It can be injected, extruded or heated. forming. Most of the auto parts are processed by injection molding. The advantages of ABS resin are impact resistance, sound insulation, scratch resistance, better heat resistance, and more beautiful than PP, especially in transverse impact resistance and service temperature more stringent components. ABS resin is the third largest resin used in automobiles after polyurethane and polypropylene. ABS resin can be used for the interior and exteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08K5/134C08K5/526C08J9/32B29C44/06B29C45/16
CPCB29C44/06B29C45/16C08J9/32C08J2203/22C08J2355/02C08K5/1345C08K5/526C08L2203/14C08L55/02
Inventor 陈庆曾军堂昝航
Owner 东莞市腾升塑胶五金有限公司