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Modified urea formaldehyde resin plastic

A technology of urea-formaldehyde resin and formaldehyde resin, which is applied in the field of modified urea-formaldehyde resin plastics, can solve the problems of poor weather resistance, slow response, easy decomposition, etc., and achieve good chemical resistance, fast curing, and good product quality.

Inactive Publication Date: 2014-07-16
SUZHOU NEW DISTRICT HUASHIDA ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, urea-formaldehyde is easy to decompose when encountering strong acid and strong alkali, and its weather resistance is poor.
When curing, it is often necessary to heat and cure the molding powder at 30-160°C, which is slow in reaction and low in efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0009] A modified urea-formaldehyde resin plastic is made of urea-formaldehyde resin and additives, the additives include a curing agent, an accelerator, a weathering agent, a chemical resistance agent and a dispersing agent, and the curing agent is a resol phenolic resin, so the The accelerator is trimethyl phosphate, the weathering agent is tetrakis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol, and the chemical-resistant agent is polytetrafluoroethylene , the dispersing agent is cyanoethyl ce...

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PUM

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Abstract

The invention discloses a modified urea formaldehyde resin plastic prepared from a urea formaldehyde resin and additives, wherein the additives comprise a curing agent, an accelerant, a weather resistant agent, a chemical resistant agent and a dispersant; the curing agent is resol; the accelerant is trimethyl phosphate; the weather resistant agent is tetra [beta-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester; the chemical resistant agent is polytetrafluoroethylene; the dispersant is cyanoethyl cellulose. By adding multiple additives into the urea formaldehyde resin, the prepared modified urea formaldehyde resin plastic has the characteristics of good chemical resistance, good weather resistance and good product quality, and is convenient to cure and quick to cure.

Description

technical field [0001] The invention relates to plastics, in particular to a modified urea-formaldehyde resin plastic. Background technique [0002] Urea formaldehyde resin A polymer obtained by reacting urea with formaldehyde. Also known as urea formaldehyde resin. English abbreviation UF. Cross-linking occurs during processing and molding, and the product is an insoluble and infusible thermosetting resin. The cured urea-formaldehyde resin is lighter in color than phenolic resin, translucent, resistant to weak acids and alkalis, has good insulation properties, excellent wear resistance, and is cheap. Urea-formaldehyde resin is mainly used in the manufacture of molded plastics, daily necessities and electrical parts, as well as sheet adhesives, pulp for paper and fabrics, veneers, architectural decorative panels, etc. Because of its light color and ease of coloring, the products are often rich and colorful. However, urea formaldehyde is easily decomposed in the presence...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/24C08L61/06C08L27/18C08L1/08C08K5/521C08K5/134
Inventor 徐春华
Owner SUZHOU NEW DISTRICT HUASHIDA ENG PLASTICS