Nanometer composite nylon-6/inorganic particle/glass fiber and its direct prepn process

A nanocomposite material and glass fiber technology, which is applied in the field of nylon 6/inorganic particle nanocomposite and its preparation, can solve the problems of unindustrialized products and less research on nylon 6/inorganic particle/glass fiber nanocomposite, and achieve Easy nucleation, excellent orientation mechanical properties, white appearance effect

Inactive Publication Date: 2007-03-21
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the research on nylon 6 / inorganic particle nanocomposites or nylon 6 / glass fiber composites has achieved a lot of results, and some composite materials have been industrialized, but there are few studies on nylon 6 / inorganic particles / glass fiber nanocomposites, let alone industrialized product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Nylon 6 / SiO 2 / Preparation of glass fiber nanocomposites

[0013] 900 g Nylon 6 / SiO 2 nanocomposite (SiO 2 content is 3%) and 100 grams of glass fibers are fully mixed in a high-speed mixer and then put into a twin-screw compounding extruder (SJSH-30 type, screw diameter 30mm, length-to-diameter ratio is 23, Nanjing Rubber Machinery Factory) for melting machinery Blending, the temperature of the five zones is: 215, 220, 225, 230, 225 ° C, the temperature of the head and the melt are 220 and 229 ° C respectively, the extrusion speed is 40prm, high-purity nitrogen protection, the molten mixture is extruded, Nylon 6 / SiO with a glass fiber content of 10% is obtained after underwater drawing, cooling, and pelletizing 2 / Glass fiber nanocomposites.

Embodiment 2

[0015] Nylon 6 / SiO 2 / Preparation of glass fiber nanocomposites

[0016] Add 11.3ml of tetraethyl orthosilicate to the reaction device, then add 3.6ml of water and 5ml of acetone, add 1 drop of 1M hydrochloric acid to adjust its acidity under stirring, hydrolyze at room temperature to obtain a transparent solution, and then add 392 grams of caprolactam Melt at a temperature of 70-80°C. After the caprolactam is completely melted, stir vigorously to mix the two evenly, and reduce pressure at the same time to extract the ethanol generated by hydrolysis and the added acetone. Add 4 grams of glass fiber, stir evenly, and then gel the resulting solution at 100-140° C. for 6 hours under the protection of high-purity nitrogen until the original uniform and transparent solution becomes a solidified transparent gel. Under the protection of high-purity nitrogen, polymerize the gel under normal pressure at 250-260°C for 15 hours, then close the nitrogen filling port, and poly...

Embodiment 3

[0018] Nylon 6 / TiO 2 / Preparation of glass fiber nanocomposites

[0019] Add 720ml of ethyl orthotitanate and 180ml of H 2 O, 180ml of acetone, hydrolyzed at room temperature to obtain a transparent solution, add 3700g of caprolactam and melt at a temperature of 70-80°C, then slowly add the hydrolyzed solution into the melted caprolactam under stirring, stir vigorously to mix the two Uniform, and then reduce the pressure at a vacuum of 0.08MPa for 20 minutes, and extract the ethanol generated by hydrolysis and the added acetone. Add 100 grams of glass fiber, stir evenly, then gel the resulting solution at 100-140°C for 6 hours under the protection of high-purity nitrogen, and gel at 250-260°C under the protection of high-purity nitrogen, 1-5 atm Under high pressure polymerization for 15 hours, then turn off the nitrogen filling port and polymerize for 8 hours under a vacuum of 0.08MPa. After purification, nylon 6 / TiO 2 / Glass fiber nanocomposite material (the t...

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Abstract

The nanometer composite nylon-6 / inorganic particle / glass fiber material consists of nylon-6 / inorganic particle in 90-99 wt% and glass fiber in 1-10 wt%. Its preparation process includes mixing nylon-6 / inorganic particle composition with glass fiber in a high speed stirrer, smelting at 230-245 deg.c under the protection of high purity nitrogen, extruding, drawing in water, cooling, pelletizing and drying. The nanometer composite nylon-6 / inorganic particle / glass fiber material has excellent mechanical, heat resisting, pressure resisting, solvent resisting and wear resisting performance, white, and other advantages.

Description

technical field [0001] The invention relates to a nylon 6 / inorganic particle nano composite material and a preparation method thereof. Background technique [0002] At present, the research on nylon 6 / inorganic particle nanocomposites or nylon 6 / glass fiber composites has achieved a lot of results, and some composite materials have been industrialized, but there are few studies on nylon 6 / inorganic particles / glass fiber nanocomposites, let alone Industrialized products. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a nylon 6 / inorganic particle / glass fiber nanocomposite with uniform distribution of nanoparticles, narrow and controllable particle size distribution, no discoloration of the product, and low cost. [0004] The object of the present invention is achieved as follows: a kind of nylon 6 / inorganic particle / glass fiber nanocomposite material, comprises following component: [0005] Nylon 6 / inorganic par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K7/14C08K3/34
Inventor 张平姜勇许福袁军潘青山
Owner XIANGTAN UNIV
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