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Low-gloss and scratch-resistant nylon/acrylonitrile-butadiene-styrene resin blending material

A styrene resin, scratch-resistant technology, applied in scratch-resistant nylon/acrylonitrile-butadiene-styrene resin blend materials, low gloss field, can solve problems such as reducing scratch resistance, achieve fluidity Good, low gloss, best scratch resistance

Active Publication Date: 2011-05-11
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the PA component contained in the PA / ABS alloy material is easy to absorb moisture in the air and becomes soft, thereby reducing the scratch resistance of the material, how to improve the scratch resistance of the PA / ABS material is The key to the development and application of such materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4 and comparative example 1

[0038] Mix the dried nylon 6 resin 2, ABS-2, SMI resin, talcum powder-1 and antioxidant 1098 in parts by weight according to the composition ratio in Table 1, and then use a twin-screw feeder to continuously and evenly add double In the main barrel of the screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=36), the main barrel is divided into ten sections to control the temperature (from the feeding port to the outlet of the machine head) at 220°C, 240°C, 260°C, 265°C, 260°C, the twin-screw speed is 300 rpm, the extruded strands are cooled in a water tank and pelletized to obtain the product. Above-mentioned product is injection molded into standard spline with plastic injection molding machine after being dried at 85 ℃ for 5 hours in blast oven, and injection molding temperature is 260 ℃. The injection-molded strips were immediately placed in a glass desiccator at room temperature for at least 24 hours before performance testing. The test results are shown in T...

Embodiment 5-7 and comparative example 2

[0043] Using the same processing technology and testing methods as in Examples 1-4, except that nylon 6 with different molecular weights, ABS high rubber powders with different rubber contents and different inorganic fillers were used respectively, PA / ABS combinations were prepared according to the composition ratio in Table 2. The performance tests are shown in Table 2.

[0044] Composition and performance of table 2PA / ABS composition

[0045] composition

Example 5

Example 6

Example 7

Example 8

PA6-1

40

40

40

40

Body ABS

28

17

17

17

ABS high rubber powder-1

25

30

30

30

SMI-2

5

3

3

3

Silica

2

5

2

wollastonite

5

8

10

Antioxidant 1098

0.3

0.3

0.3

0.3

performance

Bending strength, MPa

74.5

70.5

72.3

71.6

Flexural modulus, MPa

2400

2760

...

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Abstract

The invention discloses a blending material, in particular to a low-gloss and scratch-resistant nylon / acrylonitrile-butadiene-styrene resin blending material. The blending material consists of the following components in part by weight: 35 to 75 parts of nylon, 0 to 35 parts of bulk polymerization acrylonitrile-butadiene-styrene (ABS) graft copolymer, 15 to 30 parts of ABS high glue powder, 3 to 10 parts of styrene-N-phenylmaleimide-maleic anhydride copolymer serving as compatibilizer, 2 to 10 parts of inorganic filler and the balance of antioxidant. The nylon / acrylonitrile-butadiene-styrene resin blending material prepared by the technical scheme has the characteristics of excellent scratch resistance, chemical resistance and mechanical property, low gloss, high liquidity and the like, and is very suitable for manufacturing automobile interior decorative materials of instrument boards, door sheets and the like.

Description

technical field [0001] The invention relates to a blend material, in particular to a low-gloss, scratch-resistant nylon / acrylonitrile-butadiene-styrene resin blend material. Background technique [0002] Instrument panels, door panels, etc. are relatively important components in car interiors, and their shape and surface condition are the key to the appearance of a car. In the past, the method of attaching fabric to the frame of the instrument panel was mainly used to increase the aesthetic feeling. Due to the relatively complicated processing technology and high price, it has been gradually replaced by the method of not covering the skin in recent years, but it puts forward higher requirements for the surface of the instrument panel. Among them, the more important thing is the scratch resistance performance, so the automobile company has formulated some standards to evaluate related materials. The main solution to improve scratch resistance is to increase the surface hardn...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L55/02C08L25/08C08L77/02C08K3/34C08K3/36
Inventor 陈永东张祥福周文
Owner SHANGHAI PRET COMPOSITES
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