Light and thin high-reinforced plastic composite sheet for household appliances and preparation method thereof

A technology of reinforced plastics and composite sheets, applied in chemical instruments and methods, household components, applications, etc., can solve the problems of poor reinforcement effect of inorganic fibers, uneven dispersion of inorganic fibers, poor effect, etc., and achieve light weight , light weight and high reinforcement, the effect of improving strength and rigidity

Inactive Publication Date: 2018-09-28
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the currently widely used method of blending inorganic fibers and resins in light-weight and high-strength plastic composite materials, there are disadvantages of uneven dispersion of inorganic fibers, poor reinforcement effect of inorganic fibers, and existing methods of surface modification to improve dispersion The method process is complic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1

[0033] The preparation process is:

[0034] (1) Add the reticulated hollow ceramsite and the coupling agent to the high-speed mixer, perform surface treatment, add thermoplastic polyurethane to mix after cooling, and then perform extrusion molding to obtain a light and thin sheet; reticulated hollow ceramsite The average particle size is 8mm, and the porosity is 90%; the coupling agent is vinyl triethoxy silane; the weight parts of the raw materials in the light and thin sheet are 25 parts by weight of the net-shaped hollow ceramsite, the coupling agent 1 Parts by weight, 74 parts by weight of thermoplastic polyurethane;

[0035] (2) The high modulus carbon fiber is made into a non-woven fabric, covered with hot melt adhesive film on both sides, and then subjected to a hot pressing process to obtain a sandwich layer material; the elastic modulus of the carbon fiber is 180 GPa and the average diameter is 6 μm. The average length is 70mm; the hot melt adhesive film...

Example Embodiment

[0043] Example 2

[0044] The preparation process is:

[0045] (1) Add the reticulated hollow ceramsite and the coupling agent to the high-speed mixer, perform surface treatment, add thermoplastic polyurethane to mix after cooling, and then perform extrusion molding to obtain a light and thin sheet; reticulated hollow ceramsite The average particle size is 5mm, and the porosity is 85%; the coupling agent is vinyltrimethoxysilane; the weight of the raw material in the light and thin sheet is 20 parts by weight of reticulated hollow ceramsite and 1 weight of coupling agent Parts, 79 parts by weight of thermoplastic polyurethane;

[0046] (2) The high modulus carbon fiber is made into a non-woven fabric, covered with hot melt adhesive film on both sides, and then subjected to a hot pressing process to obtain a sandwich layer material; the elastic modulus of the carbon fiber is 150 GPa, and the average diameter is 5 μm. The average length is 40mm; the hot melt adhesive film is PES film...

Example Embodiment

[0054] Example 3

[0055] The preparation process is:

[0056] (1) Add the reticulated hollow ceramsite and the coupling agent to the high-speed mixer, perform surface treatment, add thermoplastic polyurethane to mix after cooling, and then perform extrusion molding to obtain a light and thin sheet; reticulated hollow ceramsite The average particle size is 10mm, and the porosity is 92%; the coupling agent is vinyl tris (β-methoxyethoxy) silane; the weight of the raw material in the light and thin sheet is 30 Parts by weight, 2 parts by weight of coupling agent, 68 parts by weight of thermoplastic polyurethane;

[0057] (2) The high modulus carbon fiber is made into a non-woven fabric, covered with hot melt adhesive film on both sides, and then subjected to a hot pressing process to obtain a sandwich layer material; the elastic modulus of the carbon fiber is 200 GPa and the average diameter is 8 μm. The average length is 80mm; the hot melt adhesive film is a PA film; the heating tem...

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Abstract

The invention provides a light and thin high-reinforced plastic composite sheet for household appliances and a preparation method thereof. The preparation method comprises mixing netty porous ceramsites and a coupling agent at a high speed, adding thermoplastic polyurethane into the mixture, carrying out mixing extrusion molding to obtain light and thin sheets, covering two sides of a high-moduluscarbon fiber non-woven fabric with hot-melt adhesive films, carrying out hot pressing to obtain a sandwich layered material, arranging the light and thin sheets to the front and back sides of the sandwich layered material, and carrying out rolling compounding to obtain the three-layer light and thin high-reinforced plastic composite sheet. The netty porous ceramsites are dispersed in the thermoplastic polyurethane and are used as supports so that the sheet weight is effectively reduced and sheet weight reduction is realized. The high-modulus carbon fiber non-woven fabric is used as a sheet sandwich layer. The composite sheet obtained by rolling is light and has high strength and is suitable for household appliances.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to the preparation of light, thin and high-strength plastic sheets, in particular to a light, thin and high-strength plastic composite sheet for household appliances and a preparation method thereof. Background technique [0002] Light weight and high strength are common requirements for materials, especially in aviation, shipping, transportation and other industries. At present, the commonly used lightweight and high-strength materials are mostly sandwich structure materials, which generally have combinations between polymers and polymers, polymers and metals, and metals and metal materials. They have the advantages of good waterproof performance, high strength, and easy welding, but at the same time It also has the disadvantages of difficult continuous production, large thermal deformation, and high cost. Moreover, it uses limited oil and metal resources on the earth, and the en...

Claims

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Application Information

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IPC IPC(8): B32B37/10B32B37/06B32B37/12B32B27/18B32B27/20B32B27/40B32B9/00B32B9/04B32B7/12C08L75/04C08K9/06C08K7/26
CPCB32B37/10B32B5/022B32B7/12B32B27/12B32B27/18B32B27/20B32B27/40B32B37/06B32B37/1207B32B2037/1223B32B2250/40B32B2262/106B32B2264/107B32B2307/718B32B2509/00B32B2509/10C08K7/26C08K9/06C08L75/04
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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