Phenolic resin and urea resin composite modified plastic

A technology of urea-formaldehyde resin and phenolic resin, which is applied in the field of composite modified plastics of phenolic resin and urea-formaldehyde resin, which can solve problems such as brittleness, cracks, and poor dimensional stability, and achieve excellent dimensional stability and good toughness.

Inactive Publication Date: 2014-04-02
苏州市双赢包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, it has the disadvantages of brittleness, water absorption, and poor dimensional stability, and cracks often occur even when left standing

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0008] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0009] The present invention is a composite modified plastic of phenolic resin and urea-formaldehyde resin, including phenolic resin, urea-formaldehyde resin and additives. The additives include tougheners, plasticizers, weather-resistant agents, compatibilizers and coupling agents. Described toughening agent is polyvinyl alcohol, described plasticizer is dipentyl phthalate, described weather resistance agent resorcinol monobenzoate, described compatibilizer is phthalate Formic anhydride, the coupling agent is vinyltriethoxysilane.

[0010] Further, the weight percentages of the components of the composite modified plastic of phenolic resin and urea-formaldehyde resin are 37%-50% for phenolic re...

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PUM

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Abstract

The invention discloses phenolic resin and urea resin composite modified plastic, comprising phenolic resin, urea resin and additives, wherein the additives comprise a toughening agent, a plasticizer, a weathering resisting agent, a compatilizer and a coupling agent, the toughening agent is polyvinyl alcohol, the plasticizer is diamyl phthalate, the weathering resisting agent is resorcinol monobenzoate, the compatibilizer is phthalic anhydride, and the coupling agent is vinyl triethoxysilane. The prepared phenolic resin and urea resin composite modified plastic has the effects of weathering resistance, good toughness, excellent dimensional stability and the like.

Description

technical field [0001] The invention relates to a plastic formula, in particular to a composite modified plastic of phenolic resin and urea-formaldehyde resin. Background technique [0002] Phenolic resin is one of the longest plastic varieties in history, commonly known as bakelite or bakelite, with a yellowish-brown or black appearance, and is a typical representative of thermosetting plastics. However, phenolic resin is easy to absorb water, so that the electrical properties of phenolic resin products are reduced, the mechanical strength is reduced, and the brittleness is large. Urea-formaldehyde resin is a colorless plastic that can be used as molding material, adhesive, etc., and is prepared from urea and formaldehyde. The urea-formaldehyde resin molding compound is filled with cellulose. Furthermore, it is excellent in hardness and mechanical strength. On the other hand, it has the disadvantages of brittleness, water absorption, and poor dimensional stability, and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L61/24C08L29/04C08K5/12C08K5/134C08K5/1539C08K5/5425
Inventor 徐元森
Owner 苏州市双赢包装材料有限公司
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