PC/ABS based low-shrinkage high strength and high gloss engineered polypropylene material and preparation method thereof

A polypropylene material, low shrinkage and high technology, applied in the field of low shrinkage, high strength and high gloss engineering polypropylene material and its preparation, can solve the problems of poor dimensional stability, low strength, large shrinkage of high gloss PP, etc., to achieve reduction Specular reflection, low cost, and compatibility-enhancing effect

Inactive Publication Date: 2019-06-25
SHANDONG DAWN POLYMER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of ordinary barium sulfate filled high-gloss PP with large shrinkage, poor dimensional stability and low strength

Method used

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  • PC/ABS based low-shrinkage high strength and high gloss engineered polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment provides a low-shrinkage high-strength high-gloss engineering polypropylene material based on PC / ABS, including 65 parts by weight of high-fluidity polypropylene, 10 parts by weight of grafted PP, 5 parts by weight of POE, 5 parts by weight of Parts of PA66 fiber, 15 parts of 5um glass fiber, 1.0 parts by weight of anti-glass fiber exposure agent TAF, 0.3 parts by weight of antioxidant.

[0027] Wherein, the grafted PP is a grafted PP with a grafting rate of 8%. The glass fiber is an ultrafine short glass fiber with a length of 1mm and a diameter of 5um. The organic short fiber is nylon 66 reinforced industrial fiber, and the POE is high fluidity ethylene-butylene elastomer with a fluidity of 10 (190°C*2.16KG). The polypropylene mentioned above is a high-fluidity PP with a fluidity of 45 (230°C*2.16KG).

[0028] The present invention also provides the above-mentioned method for preparing a low-shrinkage, high-strength, high-gloss engineering polypropyl...

Embodiment 2

[0037] The main difference between this example and Example 1 is that the selected formula includes 50 parts by weight of high-fluidity polypropylene, 10 parts by weight of grafted PP, 5 parts by weight of POE, 5 parts by weight of PA66 fiber, 30 parts by weight 5um glass fibers, 1.0 parts by weight of anti-glass fiber exposure agent TAF, and 0.3 parts by weight of antioxidant.

Embodiment 3

[0039] The main difference between this example and Example 1 is that the selected formula includes 52 parts by weight of high-fluidity polypropylene, 8 parts by weight of grafted PP, 10 parts by weight of POE, 10 parts by weight of PA66 fiber, 20 parts by weight 5um glass fiber, 1.0 part by weight of anti-glass fiber exposure agent TAF, 0.3 part by weight of antioxidant, 0.3 part by weight of light stabilizer, and 0.2 part by weight of phthalocyanine red.

[0040] A group of comparative test examples are listed below to illustrate the beneficial effects of the present invention.

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Abstract

The invention relates to a PC / ABS based low-shrinkage high strength and high gloss engineered polypropylene material and a preparation method thereof. The material comprises: 65 weight parts of high fluidity polypropylene, 10 weight parts of grafted PP, 5 weight parts of POE, 5 weight parts of PA66 fiber, 15 parts of 5um glass fiber, 1.0 weight part of an anti-glass fiber exposure agent, and 0.3 weight part of an antioxidant. The preparation method mainly includes the following three processes: glass fiber masterbatch manufacturing, polypropylene and masterbatch granulation, and high gloss andtraceless injection molding. An internal mixer or an exhaust twin-screw extruder is adopted in the glass fiber masterbatch manufacturing process. Ultrafine glass fiber and flexible organic fiber areinnovatively used for strengthening, and 5% or more of high grafting rate polypropylene is used as an efficient compatilizer and greatly enhances the compatibility between fiber and polypropylene, also high gloss steam traceless injection molding technology is utilized in the injection molding process to further improve the gloss of the high gloss reinforced polypropylene product, and finally through combined action, the product glass can reach the requirements of high gloss exterior parts. The PC / ABS based low-shrinkage high strength and high gloss engineered polypropylene material provided by the invention is low in cost as the general purpose material PP, but has the gloss, water shrinkage, strength and the like reaching the standards of PC / ABS alloy, ABS, PA and other engineering materials, can be used as a substitute to lower the cost, and has enormous commercial value.

Description

technical field [0001] The invention relates to the technical field of production of modified plastic materials and their blending modification, in particular to a low-shrinkage, high-strength, high-gloss engineering polypropylene material based on PC / ABS and a preparation method thereof. Background technique [0002] With the gradual saturation of my country's home appliance market in recent years, the competition in the field of home appliances has become increasingly fierce, and price and cost wars are common. Plastic parts are not spared either. Usually, high-gloss polypropylene and glass fiber reinforced PP are used to replace ABS, PC / ABS and other appearance and structural components. Fiber-reinforced polypropylene is a mature composite material, especially glass fiber-reinforced PP and carbon fiber-reinforced PP, which have been successfully commercialized. Reinforced PP has the advantages of high strength, stable size, and low price, and has become a substitute for e...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L51/06C08L23/08C08L77/02C08K13/04C08K7/14C08K5/20C08J3/22
Inventor 王少君王红徐雪梅高健
Owner SHANDONG DAWN POLYMER CO LTD
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