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Heat-resistant and hydrolysis-resistant reinforced nylon composite material and preparation method thereof

A nylon composite material, hydrolysis-resistant technology, applied in the field of polymer materials, can solve the problems of increased thermal conductivity, inability to take into account rigidity, heat resistance, dimensional stability and toughness, poor dimensional stability, etc., to improve heat resistance temperature, Superior mechanical strength and improved hydrolysis resistance

Active Publication Date: 2016-04-20
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are high water absorption and poor dimensional stability. Generally, the disadvantages can be overcome by modification methods such as reinforcement, toughening and filling, and other properties can be greatly improved.
After graphene and resin matrix are combined, the thermal expansion coefficient of the composite material can be reduced, and the thermal conductivity can be greatly increased. Adding an appropriate amount of graphene can significantly improve the mechanical properties of the matrix resin, which overcomes the large amount of general inorganic fillers used and cannot Take into account the disadvantages of simultaneously improving rigidity, heat resistance, dimensional stability, and toughness

Method used

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  • Heat-resistant and hydrolysis-resistant reinforced nylon composite material and preparation method thereof
  • Heat-resistant and hydrolysis-resistant reinforced nylon composite material and preparation method thereof
  • Heat-resistant and hydrolysis-resistant reinforced nylon composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A heat-resistant functional masterbatch made of raw materials including: 40 kg of ethylene-octene copolymer, 40 kg of polyethylene, 10 kg of graphene oxide, and 10 kg of POSS.

[0029] The heat-resistant functional masterbatch is prepared by a method comprising the following steps: After mixing ethylene-octene copolymer, polyethylene, graphene oxide, and POSS uniformly in a mixer with a rotation speed of 700 rpm, add it to In a twin-screw extruder with a screw speed of 350rpm, it is obtained by melting, kneading, extrusion and granulation; wherein, the temperature of the first zone of the twin-screw extruder is 200°C, the temperature of the second zone is 240°C, and the temperature of the third zone is 250°C ℃, the temperature of the fourth zone is 250 ℃, the temperature of the fifth zone is 240 ℃, the temperature of the sixth zone is 240 ℃, the temperature of the seventh zone is 240 ℃, the temperature of the eighth zone is 240 ℃, the temperature of the ninth zone is 220...

Embodiment 2

[0033] A heat-resistant functional masterbatch made of raw materials including 50 kg of ethylene-octene copolymer, 30 kg of polyethylene, 15 kg of graphene oxide, and 5 kg of POSS.

[0034] The heat-resistant functional masterbatch is prepared by a method comprising the following steps: After mixing ethylene-octene copolymer, polyethylene, graphene oxide, and POSS uniformly in a mixer with a rotation speed of 700 rpm, add it to In a twin-screw extruder with a screw speed of 350rpm, it is obtained by melting, kneading, extrusion and granulation; wherein, the temperature of the first zone of the twin-screw extruder is 170°C, the temperature of the second zone is 220°C, and the temperature of the third zone is 260°C ℃, the temperature of the fourth zone is 260 ℃, the temperature of the fifth zone is 240 ℃, the temperature of the sixth zone is 240 ℃, the temperature of the seventh zone is 240 ℃, the temperature of the eighth zone is 240 ℃, the temperature of the ninth zone is 220 ℃...

Embodiment 3

[0038] A heat-resistant functional masterbatch made of raw materials including: 70 kg of ethylene-octene copolymer, 20 kg of polyethylene, 5 kg of graphene oxide, and 5 kg of POSS.

[0039] The heat-resistant functional masterbatch is prepared by a method comprising the following steps: After mixing ethylene-octene copolymer, polyethylene, graphene oxide, and POSS uniformly in a mixer with a rotation speed of 700 rpm, add it to In a twin-screw extruder with a screw speed of 350rpm, it is obtained by melting, kneading, extrusion and granulation; wherein, the temperature of the first zone of the twin-screw extruder is 190°C, the temperature of the second zone is 220°C, and the temperature of the third zone is 260°C ℃, the temperature of the fourth zone is 260 ℃, the temperature of the fifth zone is 240 ℃, the temperature of the sixth zone is 240 ℃, the temperature of the seventh zone is 240 ℃, the temperature of the eighth zone is 240 ℃, the temperature of the ninth zone is 230 ℃...

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Abstract

The invention provides a heat-resistant and hydrolysis-resistant reinforced nylon composite material and a preparation method thereof. The heat-resistant and hydrolysis-resistant reinforced nylon composite material is prepared from the following raw materials in percentage by weight: 49%-78% of nylon resin, 0.1%-2% of an anti-hydrolysis agent, 5%-20% of heat-resistant functional master batches, 0.1%-5% of a lubricant and 10%-30% of a hydrolysis-resistant glass fiber. According to the heat-resistant and hydrolysis-resistant reinforced nylon composite material, the heat-resistant temperature of nylon is improved; the long-term working temperature reaches 180 DEG C or above; and the reinforced nylon resin can still reach excellent mechanical strength in a high-temperature humid and warm environment due to the heat-resistant functional master batches and the hydrolysis-resistant glass fiber.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a heat-resistant and hydrolysis-resistant reinforced nylon composite material and a preparation method thereof. Background technique [0002] Nylon resin is the earliest developed engineering plastic. It has the advantages of toughness, wear resistance, solvent resistance, oil resistance, low melt viscosity, easy availability of raw materials, recyclability and high cost performance. It has a wide range of applications in electronic appliances, electric tools, automobiles, aerospace and other fields. The disadvantages are high water absorption and poor dimensional stability, which can generally be overcome by modification methods such as reinforcement, toughening, filling, etc., and other properties can be greatly improved. As industries such as automobiles, electrical appliances, communications, electronics, and machinery have increasingly strong requirements for hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L23/08C08L23/06C08K13/06C08K9/06C08K7/14C08K5/20C08K3/04C08J3/22
CPCC08J3/226C08J2377/02C08J2377/06C08J2423/06C08J2423/08C08L77/02C08L77/06C08L2201/08C08L2205/03C08L2205/035C08L23/0815C08L23/06C08K13/06C08K9/06C08K7/14C08K5/20C08K3/04
Inventor 张现军陈勇文陶四平丁超梁惠强
Owner TIANJIN KINGFA NEW MATERIAL