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Modified nylon material and its preparation method

A technology for modifying nylon and nylon is applied in the field of polymer modified materials, which can solve the problems of unreported research and development of pulling force, and achieve the effects of convenient production, simple process and broad market prospects.

Active Publication Date: 2012-11-21
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the research and development of the pull-out force between metal inserts and modified nylon parts in China.

Method used

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  • Modified nylon material and its preparation method
  • Modified nylon material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] With 67.7 parts by weight of nylon 6 (viscosity 2.4), 0.2 parts by weight of antioxidant 1010, 0.3 parts by weight of copper salt composite antioxidant, 0.3 parts by weight of pentaerythritol stearate, 0.5 parts by weight of SMA, 1 part by weight of nigrosine masterbatch Add it into the high-mixer, mix it evenly at room temperature, and then pass it into the extruder through the main feed port of the twin-screw extruder, and extrude 30 parts by weight of glass fiber surface-treated with an aminosilane coupling agent. The side feed port of the machine is connected to the extruder; the twin-screw extruder is used for extrusion granulation, the extrusion processing temperature is 210-260°C, and the main engine speed is 350 rpm. The extruded and granulated materials are cooled and dried to obtain nylon material products with high metal insert pull-out force.

Embodiment 2

[0036] Add 67.7 parts by weight of nylon 66 (viscosity 2.4), 0.2 parts by weight of antioxidant 1098, 0.3 parts by weight of copper salt composite antioxidant, 0.3 parts by weight of oxidized polyethylene wax, 0.5 parts by weight of EMA, and 1 part by weight of carbon black masterbatch In the high-mixer, mix evenly at room temperature, and then pass into the extruder through the main feed port of the twin-screw extruder, and extrude 30 parts by weight of glass fiber surface-treated with aminosilane coupling agent through twin-screw extruder The side feed port of the extruder leads into the extruder; the twin-screw extruder is used for extrusion granulation, the extrusion processing temperature is 240-300°C, and the main engine speed is 350 rpm. The extruded and granulated materials are cooled and dried to obtain nylon material products with high metal insert pull-out force.

Embodiment 3

[0038] 57.7 parts by weight of nylon 66 (viscosity 2.7), 10 parts by weight of nylon 6 (viscosity 2.4), 0.2 parts by weight of antioxidant 1098, 0.3 parts by weight of copper salt composite antioxidant, 0.3 parts by weight of montan wax, 0.5 parts by weight of SMA, Add 1 weight of nigrosine masterbatch into the high mixer, mix evenly at room temperature, and then pass it into the extruder through the main feed port of the twin-screw extruder, and add 30 parts by weight of aminosilane coupling agent surface-treated The glass fiber is fed into the extruder through the side feed port of the twin-screw extruder; the twin-screw extruder is used for extrusion and granulation, the extrusion processing temperature is 240-300°C, and the host speed is 350 rpm. The extruded and granulated materials are cooled and dried to obtain nylon material products with high metal insert pull-out force.

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Abstract

The invention provides a modified nylon material and its preparation method. The modified nylon material is prepared from the following raw materials expressed in weight percentage: 42 to 89.2 wt% of a nylon resin, 10 to 50 wt% of glass fibers, 0.1 to 2 wt% of an antioxidant, 0.1 to 2 wt% of a lubricant, 0.1 to 2 wt% of maleic anhydride copolymer and 0.5 to 2 wt% of black masterbatch. The preparation method for the modified nylon material comprises the following steps: uniformly mixing all the above-mentioned components except the glass fibers in proportion, placing an obtained mixture into a twin-screw extruder through a main feed inlet of the twin-screw extruder, then putting the glass fibers into the extruder through a side feed inlet of the twin-screw extruder and carrying out granulation after extrusion by using the twin-screw extruder. The modified nylon material can be used in production of components and parts for automobile engines.

Description

[0001] technical field [0002] The invention belongs to the technical field of polymer modified materials, and in particular relates to a modified nylon material with high pull-out force for metal inserts and a preparation method thereof. [0003] Background technique [0004] Nylon materials are being widely used in peripheral functional parts of automobile engines because of their light weight, excellent mechanical strength, heat resistance, wear resistance, self-lubrication, good corrosion resistance, suitable for processing and molding, and excellent comprehensive performance. Intake manifold, valve cover, oil pan, engine decoration cover, cooling and heat dissipation system, etc. The most widely used nylon materials around automobile engines are PA6 and PA66. [0005] Domestic enterprises have done a lot of work in the development and application of nylon materials around automobile engines, but they mainly focus on components such as engine decorative covers, coolin...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L77/02C08L77/06C08L35/06C08L23/08C08K13/06C08K9/06C08K7/14
Inventor 钱志军冯德才梁惠强陈大华叶南飚黄明瑜
Owner KINGFA SCI & TECH CO LTD
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