Preparation method of high-fluidity amino molding plastic

An amino molding compound and high-fluidity technology, which is applied in the field of preparation of high-fluidity amino molding compounds, can solve problems such as cumbersome operations, increased equipment investment, etc., and achieve the effects of not easy fading and dyeing, and no loss of fluidity

Inactive Publication Date: 2011-02-09
DEZHOU HUAXING PLASTIC & RUBBER PRODS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is not only cumbersome to operate, but also increases equipment investment
In addition, in the patent application of "Amino Molding Compound Surface Material" with application number: 200610088381, 9, there is no elaboration on the fluidity of amino molding compound

Method used

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  • Preparation method of high-fluidity amino molding plastic

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Embodiment Construction

[0005] The present invention includes amino resin manufacturing-kneading-drying-pulverizing-amino molding compound, which is characterized in that in the manufacturing process of amino resin, a mixed solution of ammonia water and triethanolamine, or monoethanolamine, or diethanolamine is added, and 37% formaldehyde is added. Based on 1000 parts of the solution, the dosage of 25% ammonia water is between 80 and 250 parts, and the amount of triethanolamine is between 0.1 and 5 parts. Adjusting the ratio and total consumption of ammonia water and triethanolamine can effectively adjust the storage period of the product. The manufacturing method is as follows: adding 37% formaldehyde solution into the reactor after metering, adding 50% ammonia water in a quantitative proportion and stirring for 20 minutes, adding urea and warming up to 80 DEG C and stirring for 2 hours, and adding the remaining ammonia water and trihydrate when cooling to 60 DEG C. The compound of ethanolamine was s...

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Abstract

The invention relates to a preparation method of high-fluidity amino molding plastic. The method comprises the following steps of amino resin manufacturing, kneading, drying, crushing and amino molding plastic preparation and is characterized in that the mixed solution of ammonia water and triethanolamine, ammonia water and monoethanolamine or ammonia water and diethanolamine is added in the working procedure of manufacturing the amino resin, and according to the 1000 parts of the formalin with the concentration of 37 percent, the ammonia water with the concentration of 25 percent accounts for80-250 parts, the triethanolamine accounts for 0.1-5 parts, and the manufactured resin is delivered to a kneader and added with paper pulp for kneading, is simultaneously added with curing agent andzinc stearate for kneading for 2 hours and then is dried and crushed to obtain the amino molding plastic. The invention can regulate the storage period of products as required, is free from the influence of climate conditions and ensures that the high fluidity of the products is not damaged and the products are not easy for color fading and dyeing.

Description

technical field [0001] The present invention relates to the preparation method of amino moulding compound, especially the preparation of a kind of high fluidity amino moulding compound. Background technique [0002] Amino molding compound is a commonly used thermosetting plastic, which is widely used in the manufacture of melamine tableware, insulators and recreational products in industrial and household appliances, etc. The currently known manufacturing process is; amino resin manufacturing - kneading - drying - crushing - amino For molding compounds, hexamethylenetetramine is added as a protective agent to protect the fluidity of amino molding compounds during resin manufacturing. According to the requirements of the national standard GB13454-92 "Amino Molding Compounds", the product should be kept fluid within six months of leaving the factory, but the thermosetting plastics using the one-component hexamethylenetetramine protective agent will gradually change during stor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/24C08G12/36C08K3/28C08K5/17C08K5/098
Inventor 黄志海姜立敏任娜娜
Owner DEZHOU HUAXING PLASTIC & RUBBER PRODS
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