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Bendable epoxy resin fireproof plate and preparation method thereof

A technology of epoxy resin and fireproof board, applied in the field of fireproof materials, can solve the problems of inability to adapt to the base material, limited application field, and high strength of epoxy fireproof board

Active Publication Date: 2020-07-07
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, epoxy resin is a thermosetting resin, which is difficult to foam under high temperature conditions, and the problem of synergistically forming an intumescent carbon layer with a flame retardant system remains to be solved.
Moreover, when the epoxy fireproof board has high strength, it cannot adapt to different shapes of substrates, which limits its application fields.

Method used

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  • Bendable epoxy resin fireproof plate and preparation method thereof
  • Bendable epoxy resin fireproof plate and preparation method thereof
  • Bendable epoxy resin fireproof plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Preparation of modified ammonium polyphosphate:

[0052] (1) Silica sol-coated ammonium polyphosphate: Add 100g ammonium polyphosphate and 400ml acetone into the reaction vessel, mix and disperse, then add 100g silica sol dropwise into the reaction system, and mix and stir for 2 hours at 80°C , filtered and washed with acetone solvent.

[0053] (2) Treatment of ammonium polyphosphate with silane coupling agent: add 100g of ammonium polyphosphate coated with silica sol in step (1) and 400ml of acetone into the reaction vessel for mixing and stirring to disperse, then, add 5g of silane coupling agent dropwise The agent KH-570 is used to graft and modify the surface of ammonium polyphosphate, and at the same time, 2.11g of ammonia hydrolyzed silane coupling agent dispersed in 20ml of acetone is added dropwise. After reacting at 40°C for 5h, the mixed solution is filtered, washed and dried. The coated ammonium polyphosphate is obtained.

[0054] Flame retardants include: ...

Embodiment 2

[0065] Preparation of modified ammonium polyphosphate:

[0066] (1) Silica sol-coated ammonium polyphosphate: add 100g ammonium polyphosphate and 400ml acetone into the reaction vessel, mix, stir and disperse, then add 100g silica sol dropwise into the reaction system, and mix and stir for 2 hours at 80°C Afterwards, filter and wash with acetone solvent.

[0067] (2) Treatment of ammonium polyphosphate with silane coupling agent: add 100g of ammonium polyphosphate coated with silica sol in step (1) and 400ml of acetone into the reaction vessel for mixing and stirring to disperse, then, add 5g of silane coupling agent dropwise The agent KH-570 is used to graft and modify the surface of ammonium polyphosphate, and at the same time, 2.11g of ammonia hydrolyzed silane coupling agent dispersed in 20ml of acetone is added dropwise. After reacting at 40°C for 5h, the mixed solution is filtered, washed and dried. The coated ammonium polyphosphate is obtained.

[0068] Flame retardan...

Embodiment 3

[0080] Preparation of modified ammonium polyphosphate:

[0081] (1) Surface hydroxylation treatment of ammonium polyphosphate: add 100g of ammonium polyphosphate and 400ml of deionized water into the reaction vessel, mix and stir to disperse; then, add 5.6g of ammonia water, adjust its pH value to 7.0, and treat polyphosphoric acid at 60°C Ammonium surface hydroxylation treatment; after 20 minutes of treatment, the mixture was filtered and washed with ethanol solvent.

[0082] (2) Organic phosphate-coated ammonium polyphosphate: 100g of ammonium polyphosphate and 400ml of acetone after the hydroxylation treatment in step (1) were mixed and stirred for half an hour; Alcohol phosphate was added dropwise into the reaction system, and mixed and stirred for 5 hours at a temperature of 50°C; after the reaction, the acetone solvent was washed to obtain coated ammonium polyphosphate.

[0083] (3) Ammonium polyphosphate treated with silane coupling agent: 100g ammonium polyphosphate a...

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Abstract

The invention discloses a bendable epoxy resin fireproof plate and a preparation method thereof. The epoxy resin fireproof plate is prepared from the following raw materials in parts by weight: 100 parts of epoxy resin, 250 to 1000 parts of a flame retardant, 50 to 300 parts of titanium dioxide, 12 to 100 parts of zinc borate, 5-60 parts of a microsphere foaming agent, 5 to 100 parts of expandablegraphite, 40 to 250 parts of refractory fiber, 5-70 parts of a diluent, and 30-300 parts of a curing agent. The epoxy resin fireproof plate prepared by the invention has bendability and can adapt toequipment with different shapes; due to the characteristic that the epoxy fireproof plate is cured at room temperature, the epoxy fireproof plate can be prepared in advance, and the construction progress is accelerated. The process is simple, is easy to realize industrialization, is solvent-free, and is safe and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of fireproofing materials, and more specifically, relates to a bendable epoxy resin fireproofing board and a preparation method thereof. Background technique [0002] The level of fire utilization and control is a sign of the level of human civilization. The use of fire has brought the age of primitive people into the era of human civilization, but the failure of fire control has caused great trauma and property loss to human life. Fire prevention and flame retardancy are the permanent theme of human technological progress. With the progress of social civilization, building facilities are more diversified, especially the rapid development of steel structure buildings in recent years, which makes the problem of fire prevention more urgent. Ultra-thin fireproof coatings are the solution to this problem. Effective means are also a hot spot in the field of flame retardancy in recent years. However, some constru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K3/22C08K3/38C08K7/24C08K13/06C08K3/32C08K9/10C08J9/32
CPCC08J9/32C08J2203/22C08J2363/00C08K7/24C08K9/10C08K13/06C08K2003/2241C08K2003/323C08K2003/387
Inventor 史翎樊彦昊徐玲朱峰吴灿付非凡李佳豪胡颖童杨晓猛
Owner BEIJING UNIV OF CHEM TECH