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Thermo-oxidative ageing-resistant nylon/acrylonitrile-butadiene-styrene resin mixed material

A technology of styrene resin and styrene copolymer, which is applied in the field of nylon/acrylonitrile-butadiene-styrene ternary copolymer resin blend materials, can solve the problems of heat and oxygen aging resistance without further explanation, and achieve good Notched impact performance, good fluidity, and excellent thermal and oxidative aging resistance

Active Publication Date: 2012-07-04
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no further information is given on the thermo-oxidative aging properties of this material

Method used

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  • Thermo-oxidative ageing-resistant nylon/acrylonitrile-butadiene-styrene resin mixed material
  • Thermo-oxidative ageing-resistant nylon/acrylonitrile-butadiene-styrene resin mixed material
  • Thermo-oxidative ageing-resistant nylon/acrylonitrile-butadiene-styrene resin mixed material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4 and comparative example 1-2

[0029] Mix the dried nylon 6 resin 1, SAN-1, ABS-1, SAN-g-MAH resin, additives and colorants according to the composition ratio in Table 1, and then use a twin-screw feeder to continuously and evenly add them to the twin-screw extruder (Screw diameter 35mm, length-to-diameter ratio L / D=36) In the main barrel, the main barrel is divided into ten sections to control the temperature (from the feeding port to the nozzle outlet) as 180°C, 200°C, 220°C, 235°C, 235°C, 235°C ℃, 235℃, 235℃, 240℃, 235℃, the twin-screw speed is 400 rpm, and the extruded strips are cooled in a water tank and then 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 240 ℃. The injection-molded strips were immediately placed in a glass desiccator at 23±2°C for at least 24 hours before performance testing. The test results are shown in...

Embodiment 5-7 and comparative example 3

[0034] Adopt the processing technology and test method with embodiment 1-4, just use the ABS resin of the nylon 6 of different molecular weight and different rubber content respectively, and different SAN resin, prepare PA6 / ABS resin composition according to the composition ratio of table 2 , the performance test is shown in Table 2.

[0035] Composition and performance of table 2PA6 / ABS composition

[0036]

[0037]

[0038] Can find out from the test result of above-mentioned embodiment, use nylon 6 (PA6-1,2,3) of different molecular weight and the ABS resin (ABS-1,2) of rubber content in 60-70%, adopt method of the present invention Both have prepared PA6 / ABS blend materials with excellent thermal and oxidative aging resistance; it can also be seen that the PA6 / ABS composition prepared by using high molecular weight nylon 6 resin has a higher Izod notched impact strength.

[0039] A thermal-oxidative aging-resistant nylon / acrylonitrile-butadiene-styrene resin blend ...

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Abstract

The invention discloses a thermo-oxidative ageing-resistant nylon / acrylonitrile-butadiene-styrene resin blending material. The thermo-oxidative ageing-resistant nylon / acrylonitrile-butadiene-styrene resin mixed material comprises the following components in part by weight: 25 to 75 parts of nylon resin, 10 to 30 parts of acrylonitrile-styrene copolymer, 10 to 40 parts of acrylonitrile-butadiene-styrene copolymer, 5 parts of maleic anhydride-grafted acrylonitrile-styrene copolymer compatibilizer, 0.2 to 0.5 part of main antioxidant and 0.2 to 0.5 part of auxiliary antioxidant. By adoption of the technical scheme, the thermo-oxidative ageing-resistant nylon / acrylonitrile-butadiene-styrene resin mixed material has the characteristics of excellent thermo-oxidative ageing resistance and high flowability, has a high notch impact property, chemical resistance and mechanical properties, can be used as manufacturing materials of shells of automobile accessories, electric tools, office equipment and the like.

Description

technical field [0001] The invention relates to a nylon (PA6) / acrylonitrile-butadiene-styrene ternary copolymer resin (ABS) blend material with excellent heat and oxygen aging resistance and high notched impact strength. Background technique [0002] Nylon, that is, polyamide resin, is the earliest developed variety of engineering plastics. It has excellent mechanical properties, chemical resistance, good self-lubricating properties and processing properties, so it is widely used in various industries such as automobiles, electronics, and machinery. production area. Due to the special chemical structure of polyamide, there are deficiencies in performance, such as low low-temperature impact strength and poor heat-oxidative aging resistance. This greatly limits the further promotion and application of PA, and cannot meet the requirements of various industries for the thermal and oxygen aging resistance of materials. Extensive and in-depth research has been carried out on the...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L55/02C08L51/00C08L25/12
Inventor 王帅陈永东张祥福周文
Owner SHANGHAI PRET COMPOSITES
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