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Urea-formaldehyde resin-based composite material and preparation method thereof

A technology of urea-formaldehyde resin and composite materials, applied in the field of composite materials, can solve the problems of restricted application range, poor heat resistance, intolerant of hydrolysis, etc., to improve heat resistance, consume impact energy, improve impact resistance and toughness Effect

Active Publication Date: 2018-04-03
安徽科林新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composite material prepared by this method still has certain defects: high brittleness, poor resistance to hydrolysis, and poor heat resistance, these defects restrict its application range

Method used

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  • Urea-formaldehyde resin-based composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Urea-formaldehyde resin-based composite material, its components and parts by weight are: 45 parts of urea-formaldehyde resin, 6.5 parts of PPS, 3.8 parts of EVA-g-MAH, 8 parts of aluminum oxide hollow microspheres, 2.5 parts of lignin, 16 parts of talcum powder, 1.4 parts of aluminate coupling agent, 2 parts of citric acid, 0.7 parts of inorganic pigment, 1.8 parts of calcium stearate, 3.5 parts of hexamethylenetetramine.

[0028] The steps of its preparation method are as follows:

[0029] (1) Dissolve alumina hollow microspheres in anhydrous toluene and magnetically stir for 2 hours, add aluminate coupling agent and continue to magnetically stir for 20 hours, take it out and wash it with ethanol for 20 minutes, and place it in a vacuum desiccator at 100°C Drying at low temperature for 3 hours, after grinding, modified alumina hollow microspheres were obtained;

[0030] (2) Add urea-formaldehyde resin, PPS, and compatibilizer together into a mixer and mix for 10 minu...

Embodiment 2

[0034] Urea-formaldehyde resin-based composite material, its components and parts by weight are: 50 parts of urea-formaldehyde resin, 7.5 parts of PPS, 3.2 parts of EVA-g-MAH, 9.5 parts of aluminum oxide hollow microspheres, 3 parts of lignin, 15 parts of calcium carbonate, 1.2 parts of aluminate coupling agent, 1.4 parts of citric acid, 0.9 parts of inorganic pigment, 1.2 parts of calcium stearate, 4.5 parts of hexamethylenetetramine.

[0035] Its preparation method is the same as Example 1.

Embodiment 3

[0037] Urea-formaldehyde resin-based composite material, its components and parts by weight are: 40 parts of urea-formaldehyde resin, 7 parts of PPS, 3.5 parts of EVA-g-MAH, 8.5 parts of aluminum oxide hollow microspheres, 2 parts of lignin, 18 parts of calcium carbonate, 1.8 parts of aluminate coupling agent, 1.6 parts of citric acid, 0.2 parts of inorganic pigment, 1 part of calcium stearate, 4 parts of hexamethylenetetramine.

[0038] Its preparation method is the same as Example 1.

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Abstract

The invention provides a urea-formaldehyde resin-based composite material, whose components and parts by weight are: 40-60 parts of urea-formaldehyde resin, 6-8 parts of PPS, 3-4 parts of compatibilizer, 8-10 parts of aluminum oxide hollow microspheres, 2-5 parts of toughening agent, 15-20 parts of filler, 1-2 parts of coupling agent, 1-2 parts of curing agent, 0.5-1 part of pigment, 1-2 parts of lubricant, 3-5 parts of stabilizer. The invention also provides a preparation method of the composite material. The urea-formaldehyde resin-based composite material for snowboards provided by the invention has good toughness, hydrolysis resistance and heat resistance, and can be applied to various occasions.

Description

Technical field: [0001] The invention relates to a composite material, in particular to a urea-formaldehyde resin-based composite material and a preparation method thereof. Background technique: [0002] Urea-formaldehyde resin, also known as urea-formaldehyde resin, abbreviated as UF, is the polycondensation of urea and formaldehyde under the action of a catalyst (alkaline or acidic catalyst) into an initial urea-formaldehyde resin, and then under the action of a curing agent or an auxiliary agent, it forms an insoluble, insoluble resin. Melting end-stage thermosetting resin. The color of cured urea-formaldehyde resin is lighter than that of phenolic resin, translucent, resistant to weak acid and weak alkali, good insulation performance, excellent wear resistance, and cheap. In 1924, it was developed by the British cyanamide company, and the product was sold in 1928. The output reached 1,000 tons in the mid-1930s, and the world's annual output exceeded 1.5Mt in the 1980s. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/24C08L81/02C08L51/00C08L97/00C08K13/06C08K7/24C08K3/34C08K5/092C08K5/098C08K5/17
Inventor 黄文成
Owner 安徽科林新材料科技有限公司
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