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High-thermal-oxidative stability and heat-resistant regeneration nylon material and preparation method thereof

A nylon composite material, a technology of stability, which is applied in the field of polymer composite material preparation, and achieves the effects of broad market prospects, improved heat resistance and hydrolysis resistance, and convenient production.

Inactive Publication Date: 2014-08-27
NINGBO EAGLE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Nylon modified materials have achieved the purpose of "replacing steel with plastic" in many fields, which not only reduces the cost of products, but also reduces the weight of products. There is no report on the use of advanced modification technology to achieve high performance of recycled nylon and to ensure that recycled nylon composite materials can meet the long-term high-temperature use of tractor water tanks

Method used

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  • High-thermal-oxidative stability and heat-resistant regeneration nylon material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Dry 61kg of regenerated nylon 6 resin (relative viscosity 2.4), 0.25kg of antioxidant 1098, 0.25kg of antioxidant 168, 3kg of EPDM-g-MAH, 1kg of silicone, 2kg of cuprous halide, 2kg of nigrosine, 0.5kg of aromatic Add the polycarbodiimide to the high-speed mixer, stir evenly and then add it to the main feeder of the twin-screw extruder, add 30kg of glass fiber to the side feeder of the twin-screw extruder, the speed of the main machine 600r / min, adding temperature 240-280℃, vacuum pressure controlled at 0.06-0.08MPa, pelletized by twin-screw extruder.

Embodiment 2

[0037] Dry 56kg of regenerated nylon 66 resin (relative viscosity 2.6), 0.25kg of antioxidant 1010, 0.25kg of antioxidant 168, 4kg of POE-g-MAH, 1kg of oxidized polyethylene wax, 1.5kg of disodium hydrogen phosphate, 2.5kg of Carrier carbon black and 0.5kg aromatic polycarbodiimide are added to the high-speed mixer, and after stirring evenly, they are added to the main feeder of the twin-screw extruder, and 35kg of glass fiber is added to the side feeder of the twin-screw extruder In the feeder, the speed of the host is 600r / min, the feeding temperature is 240-280°C, the vacuum pressure is controlled at 0.06-0.08MPa, and the pellets are granulated by a twin-screw extruder.

Embodiment 3

[0039] 30kg dried nylon 66 resin (relative viscosity 2.8), 30.8kg dried recycled nylon 6 resin (relative viscosity 2.2), 0.3kg antioxidant 626, 3kg SEBS-g-MAH, 0.8kg silicone, 0.5kg ethylene bismuth Add stearamide, 2kg copper salt phosphate, 2kg carbon black masterbatch with nylon as the carrier, and 0.6kg high molecular weight and high hindrance phosphite into the high-speed mixer, stir well and then add it to the main feed of the twin-screw extruder Add 30kg of glass fiber to the side feeder of the twin-screw extruder, the speed of the host is 600r / min, the feeding temperature is 240-280°C, the vacuum pressure is controlled at 0.06-0.08MPa, and extruded by the twin-screw Machine granulation.

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Abstract

The invention relates to a high-thermal-oxidative stability and heat-resistant regeneration nylon material which comprises the following raw materials by mass percent: 46%-68.1% of regeneration nylon resin, 25%-35% of glass fibers, 3%-8% of a flexibilizer, 0.2%-1.0% of an antioxidant, 0.5%-2.0% of a lubricant, 2%-4% of a thermal stabilizer, 1.0%-3.0% of black masterbatch and 0.2%-1.0% of a hydrolysis-resistant agent. A preparation method of the regeneration nylon material comprises the following steps: 1, drying; 2, proportioning the raw materials; 3, stirring to be uniform; 4, extruding and granulating. According to the regeneration nylon material, the mechanical performance and the heat-resistant performance are greatly improved under combined action of functional aids, and a product can be used for a long term in a high-water-temperature environment. The current product is successfully applied to preparation of the cooling water tank of a tractor and replaces primary aluminum iron to manufacture the water tank.

Description

【Technical field】 [0001] The invention relates to the technical field of polymer composite material preparation, and more specifically relates to a regenerated nylon composite material with high thermo-oxygen stability and heat resistance and a preparation method thereof, which is especially suitable for tractor water tanks. 【Background technique】 [0002] With the depletion of world oil resources and the severe environmental problems, energy saving, environmental protection and light weight have become the problems faced by the world's industrial development. Nylon has good mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication , and has the advantages of easy processing and molding, large design freedom, complex structural parts that can be integrally formed, reduced production processes and low production costs. [0003] Nylon is one of the most widely used varieties of engineering plastics. However, with the increasing requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08K13/04C08K7/14C08K3/16C08K3/04C08K3/32C08K5/20B29C47/92B29C48/92
CPCB29C47/0011B29C47/92B29C48/92B29C2948/92514B29C2948/9259B29C2948/92704C08K2201/003C08L77/02C08L77/06C08L2201/08C08L2205/035C08L2207/20C08L51/04C08L83/04C08L75/00C08K13/04C08K7/14C08K3/16C08K5/526C08K5/20C08L51/003C08L51/06C08L23/30C08K5/1345C08K2003/324C08K3/04C08L51/00C08L77/00C08K5/527C08K2003/328B29C48/04B29C48/40
Inventor 陆建华蒋东升
Owner NINGBO EAGLE NEW MATERIAL
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