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Production method of inorganic soil graft modified phenolic resin foam

A technology of phenolic resin foam and graft modification, which is applied in the field of kaolin and inorganic soil, which can solve the problems affecting the foam structure and thermal conductivity of the foam, and achieve the effects of improving thermal insulation performance, fire resistance performance and high closed cell rate

Active Publication Date: 2013-10-16
长沙中野机电设备安装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the modification process of doping inorganic nanoparticles, the structure of the foam is affected, and the thermal conductivity of the foam is also affected.

Method used

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  • Production method of inorganic soil graft modified phenolic resin foam
  • Production method of inorganic soil graft modified phenolic resin foam
  • Production method of inorganic soil graft modified phenolic resin foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Backup raw materials: 400kg of phenol, 225kg of paraformaldehyde, 1.5kg of sodium hydroxide, 10kg of maleic anhydride, 5kg of kaolin, 11kg of coupling agent ZYL, and 60kg of water;

[0022] (2) Put the phenol, sodium hydroxide and water prepared in step (1) into the reaction kettle, heat up to 70-80° C., add the maleic anhydride prepared in step (1), and mix and stir for 1 hour. Added maleic anhydride reacts with the phenolic hydroxyl group of phenol in the described reactor, generates product a namely 3-phenyl-3-oxo-2-butenoic acid, and its reaction formula is:

[0023]

[0024] In the formula for phenol, Be maleic anhydride, catalyst is sodium hydroxide, and product a is 3-phenyl-3-oxo-2-butenoic acid;

[0025] (3), take the paraformaldehyde prepared in step (1) and divide it into three times, each time at an interval of 20 minutes, put it into the reaction kettle, control the temperature to 90°C and below, and throw it within 1 hour. Slowly raise the temp...

Embodiment 2

[0032] (1) Backup raw materials: 500kg of phenol, 275kg of paraformaldehyde, 2kg of sodium hydroxide, 20kg of maleic anhydride, 15kg of kaolin, 11.5kg of coupling agent ZYL, and 120kg of water;

[0033] Steps (2)~(4) are with embodiment 1;

[0034] (5), dehydration 70kg, obtain kaolin graft modified phenolic resin;

[0035] (6), get step (5) gained kaolin graft modified phenolic resin 40kg, get BD3088 polyether modified organopolysiloxane 1.3kg, n-pentane 2.5kg, and p-toluenesulfonic acid 0.8kg, phosphoric acid 0.8kg , 0.8kg of sulfuric acid, a total of 2.4kg, dissolved in 0.5kg of water, mixed and stirred evenly, injected into the preset mold, and foamed by conventional methods to obtain the finished inorganic soil grafted modified phenolic resin foam. The finished inorganic soil graft modified phenolic resin foam finished product of above-mentioned embodiment 1~2 is qualified through inspection, and inspection result is as shown in the following table:

[0036]

[0037]...

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Abstract

The invention discloses a production method of inorganic soil graft modified phenolic resin foam, which comprises the following steps that (1) the following raw materials: phenol, paraformaldehyde, sodium hydroxide, maleic anhydride, kaolin, a coupling agent ZYL1 and water are prepared; (2), phenol, sodium hydroxide and the water are taken, mixed and stirred; (3), paraformaldehyde is taken and put into a reaction kettle; (4), the kaolin and the coupling agent ZYL1 are added, mixed and stirred; (5), dehydration is performed; and (6), kaolin graft modified phenolic resin, BD3088 polyether modified organic polysiloxane, n-pentane and p-toluenesulfonic acid are taken, dissolved in the water and then injected into a die to be foamed to form the inorganic soil graft modified phenolic resin foam. With the adoption of the method, the phenolic resin foam having high flame retardancy, high carbon residue rate, high toughness and high close area percentage can be obtained. The heat preservation performance and the fire resistance of the phenolic resin foam are improved successfully.

Description

technical field [0001] The invention belongs to the technical field of organic chemical industry, and relates to a production method of inorganic soil, such as kaolin, grafted modified phenolic resin foam. Background technique [0002] At present, my country is actively developing and trialling new phenolic wall insulation materials, so that it can be used for wall insulation and reduce the wall heat transfer coefficient. This product is of great significance to the country's energy saving and emission reduction, the implementation of low-carbon environmental protection and fire safety. [0003] Although phenolic foaming materials have developed rapidly in recent years, due to technical limitations, the research direction focuses on improving the thermal insulation performance of materials. The fire prevention of the structure of the insulation material and the solution to the fire prevention problem of the insulation material. However, the progress of research work at hom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08K3/34C08G8/30C08J9/14
Inventor 黎超张述覃强
Owner 长沙中野机电设备安装有限公司
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