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Curing agent and melamine resin composition containing same

A technology of melamine and curing agent, applied in the field of curing agent, can solve the problems of low latency, uneven quality of melamine-impregnated paper, and great difference in the use level of melamine resin curing agent, so as to achieve good latency, high curing activity, Long pot life

Inactive Publication Date: 2020-08-28
杭州临安迪恩化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the quality of melamine-impregnated paper in my country is uneven, mainly because the use level of melamine resin curing agent is very different. Generally, enterprises only use their own simple prepared melamine resin curing agent, because the curing agent acts on the glue at a lower temperature. Curing effect, the impregnated paper produced will generally be cured prematurely, and the latency is low. Some high-end companies use imported curing agents with slightly higher latency, and the effect is better, but there is no fundamental change, and at the same time they rely on imported certain brands If the curing agent is out of stock or out of stock, it will be a great risk to the production of the enterprise

Method used

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preparation example Construction

[0041] The second aspect of the present invention provides a preparation method according to the curing agent, which is characterized in that it includes at least the following steps: adding each component into a reaction kettle and stirring evenly.

[0042] In a preferred embodiment, the preparation method of the curing agent at least includes the following steps: first adding dialkylolamine into the reaction kettle to stir, then adding trialkylolamine, ammonia water, and hydrochloric acid in order to stir, Turn on the cooling water to cool down to room temperature and then discharge.

[0043] The third aspect of the present invention provides a melamine resin composition, including a melamine resin prepolymer and the curing agent.

[0044] In a preferred embodiment, the mass ratio of the melamine resin prepolymer to the curing agent is 100: (0.1 to 2); preferably, the mass ratio of the melamine resin prepolymer to the curing agent is 100: 1.

[0045] The melamine resin pre...

Embodiment 1

[0049] Embodiment 1 of the present invention provides a curing agent, the preparation raw materials are: alcohol amine, inorganic base and inorganic acid; the mass ratio of the alcohol amine, inorganic base and inorganic acid is 7:1:8.

[0050] The alcohol amine is a dialkylolamine and a trialkylolamine; the mass ratio of the dialkylolamine and the trialkylolamine is 2.5:1; the dialkylolamine is diethanolamine; the Described trialkyl alcohol amine is triethanolamine.

[0051] The diethanolamine and triethanolamine were purchased from Jinan Guangyu Chemical Co., Ltd.

[0052] The inorganic base is ammonia water, purchased from Nantong Guangrong Chemical Co., Ltd.

[0053] The inorganic acid is hydrochloric acid.

[0054] The preparation steps of the curing agent are as follows: firstly add dialkylolamine into the reaction kettle and stir, then add trialkylolamine, ammonia water and hydrochloric acid in turn and stir, turn on the cooling water to cool down to room temperature,...

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Abstract

The invention relates to the technical field of curing agents, and particularly provides a curing agent and a melamine resin composition containing the same. The first aspect of the invention providesthe curing agent. The curing agent is prepared at least from alcohol amine, inorganic base and inorganic acid, wherein the mass ratio of the alcohol amine to the inorganic base to the inorganic acidis (5-9): 1: 8.

Description

technical field [0001] The invention relates to the technical field of curing agents, more specifically, the invention provides a curing agent and a melamine resin composition containing the curing agent. Background technique [0002] At present, the quality of melamine-impregnated paper in my country is uneven, mainly because the use level of melamine resin curing agent is very different. Generally, enterprises only use their own simple prepared melamine resin curing agent, because the curing agent acts on the glue at a lower temperature. Curing effect, the impregnated paper produced will generally be cured prematurely, and the latency is low. Some high-end companies use imported curing agents with slightly higher latency, and the effect is better, but there is no fundamental change, and at the same time they rely on imported certain brands Once the curing agent is out of stock or out of stock, it will be a great risk to the production of the enterprise. [0003] With the de...

Claims

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Application Information

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IPC IPC(8): C08K5/18C08K3/28C08K3/16C08L61/28
CPCC08K3/16C08K3/28C08K5/18C08L61/28
Inventor 奚佳勇
Owner 杭州临安迪恩化工有限公司
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