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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 complicated and the effect is not good. The present invention proposes a light and thin high-strength plastic composite sheet for household appliances and its preparation method, thereby effectively realizing the uniform dispersion of inorganic fibers in the resin, and the prepared composite sheet can take into account both Advantages of lightweight and high strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation process is:

[0034] (1) Add reticular hollow ceramsite and coupling agent into a high-speed mixer for surface treatment, add thermoplastic polyurethane for mixing after cooling, and then perform extrusion molding to obtain light and thin sheets; reticulated hollow ceramsite The average particle diameter is 8mm, and the porosity is 90%; The coupling agent is vinyltriethoxysilane; The weight parts of raw materials in the light and thin sheet are: 25 parts by weight of reticulated hollow ceramsite, 1 part by weight of coupling agent Parts by weight, thermoplastic polyurethane 74 parts by weight;

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

Embodiment 2

[0044] The preparation process is:

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

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

Embodiment 3

[0055] The preparation process is:

[0056] (1) Add reticular hollow ceramsite and coupling agent into a high-speed mixer for surface treatment, add thermoplastic polyurethane for mixing after cooling, and then perform extrusion molding to obtain light and thin sheets; 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 part 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 a hot-melt adhesive film on both sides, and then subjected to a hot-pressing process to obtain a sandwich layered material; the elastic modulus of the carbon fiber is 200GPa, and the average diameter is 8μm. The average length is 80mm; the hot melt adhesive film is PA film; the heating temperature of the hot...

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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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