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High temperature resistant phenolic resin with low formaldehyde emission and high water solubility and its preparation method

A technology of low formaldehyde release and phenolic resin, which is applied in the field of phenolic resin, can solve the problems of low formaldehyde release and achieve the effects of low formaldehyde release, high temperature resistance and high strength

Active Publication Date: 2018-06-29
广西至善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

At present, there is no phenolic resin used to manufacture basalt fiber thermal insulation and fireproof boards. Therefore, it is of practical significance and economic value to develop a low-formaldehyde emission, high water-soluble, high-temperature resistant phenolic resin for the manufacture of basalt fiber thermal insulation and fireproof boards.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing a high temperature resistant phenolic resin with low formaldehyde emission and high water solubility, the specific steps are as follows:

[0034] A, 800Kg formaldehyde is added in the reactor, and described formaldehyde concentration is 36.9%, and methanol content is 1%;

[0035] B. Add the first catalyst;

[0036] C, add 410Kg phenol;

[0037] D, the reaction kettle was heated up to 55 degrees Celsius and was incubated for 30 minutes;

[0038] E, add the second part of catalyst, heat up to 60 degrees Celsius and keep warm for 30 minutes;

[0039] F, add the third part of catalyzer, heat up to 65 degrees Celsius and keep warm for 30 minutes;

[0040] G. Heat up to 80 degrees Celsius, add the first aldehyde reducing agent, and react to 12 times the water turbidity (23 degrees Celsius)

[0041] H, open cooling water, the temperature in the reactor is cooled to 60 degrees centigrade, add the second part of formaldehyde reducing agent;

[0042] I...

Embodiment 2

[0047] A method for preparing a high temperature resistant phenolic resin with low formaldehyde emission and high water solubility, the specific steps are as follows:

[0048] A, 900Kg formaldehyde is added in the reactor, and described formaldehyde mass concentration is 37.1%, and methanol mass content is 0.5%;

[0049] B. Add the first catalyst;

[0050] C, add 430Kg phenol;

[0051] D, the reaction kettle is warmed up to 55 degrees Celsius and kept warm for 20-50 minutes;

[0052] E, add the second part of catalyst, heat up to 60 degrees Celsius and keep warm for 40 minutes;

[0053] F, add the third part of catalyzer, heat up to 65 degrees Celsius and keep warm for 30 minutes;

[0054] G. Heat up to 80 degrees Celsius, add the first aldehyde reducing agent, and react to 10 times the water turbidity (23 degrees Celsius)

[0055] H, open cooling water, the temperature in the reactor is cooled to 60 degrees centigrade, add the second part of formaldehyde reducing agent; ...

Embodiment 3

[0061] A method for preparing a high temperature resistant phenolic resin with low formaldehyde emission and high water solubility, the specific steps are as follows:

[0062] A, 930Kg formaldehyde is added in the reactor, and described formaldehyde mass concentration is 37.1% and methanol mass content is 2.0%;

[0063] B. Add the first catalyst;

[0064] C, add 460Kg phenol;

[0065] D, reaction kettle was heated up to 55 degrees Celsius and was incubated for 40 minutes;

[0066] E, add the second part of catalyst, heat up to 60 degrees Celsius and keep warm for 20 minutes;

[0067] F, add the third part of catalyzer, heat up to 65 degrees Celsius and keep warm for 40 minutes;

[0068] G. Heat up to 80 degrees Celsius, add the first aldehyde reducing agent, and react to 10 times the water turbidity (23 degrees Celsius)

[0069] H, open cooling water, the temperature in the reactor is cooled to 60 degrees centigrade, add the second part of formaldehyde reducing agent;

[...

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Abstract

The invention discloses low-formaldehyde-emission high-water-solution-multiple high-temperature-resistant phenolic resin and a preparation method thereof. The method includes the steps that firstly, formaldehyde is added to a reaction still; a first part of catalyst is added; phenol is added; the temperature of the reaction still is raised to 50-58 DEG C, and heat preservation is conducted; a second part of catalyst is added, the temperature of the reaction still is raised to 60-62 DEG C, and heat preservation is conducted; a third part of catalyst is added, the temperature of the reaction still is raised to 65-70 DEG C, and heat preservation is conducted; the temperature is raised to 80-85 DEG C, a first part of formaldehyde reducing agent is added, and the reaction is conducted till 10-13 times of water turbidity is achieved; cooling water is introduced, the reaction still is cooled to 60-65 DEG C, and a second part of formaldehyde reducing agent is added; the reaction still continues to be cooled to 45-50 DEG C, and rubber is discharged. The catalysts are one or more of products of the types PF-003, PF-006 and PF-009 produced by the Youke decorative material limited company in Dongguan city. The prepared phenolic resin has the advantages of being long in storage period, low in formaldehyde release amount, high in water solution multiple, resistant to high temperature and the like.

Description

technical field [0001] The invention relates to a phenolic resin, in particular to a high temperature resistant phenolic resin with low formaldehyde emission and high water solubility and a preparation method thereof. The phenolic resin can be used to manufacture basalt fiber thermal insulation and fireproof boards. Background technique [0002] Basalt fiber is a new type of inorganic environmentally friendly green high-performance fiber material. It is composed of basalt rocks composed of oxides such as silicon dioxide, aluminum oxide, calcium oxide, iron oxide and titanium dioxide. drawn. The production process of basalt fiber produces less waste and less environmental pollution. After the product is discarded, it can be directly transferred to the ecological environment without any harm. Therefore, it is a veritable green and environmentally friendly material. my country has listed basalt fiber as one of the four major fibers (basalt fiber, carbon fiber, aramid fiber, ul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/10
CPCC08G8/10
Inventor 袁道升陈玉坤
Owner 广西至善新材料科技有限公司