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High-temperature ceramizable phenolic foam composite material and preparation method thereof

A technology of phenolic foam and composite materials, which is applied in the fields of fire prevention, heat insulation, heat preservation, and polymer-based foam composite materials. It can solve the problems of insufficient high temperature resistance and achieve the effect of improving heat resistance.

Active Publication Date: 2017-04-26
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem of insufficient high temperature resistance of traditional organic foam composite materials under high temperature combustion or oxidation conditions

Method used

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  • High-temperature ceramizable phenolic foam composite material and preparation method thereof
  • High-temperature ceramizable phenolic foam composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A high-temperature ceramizable phenolic foam composite material, which is composed of: 100 parts of expandable phenolic resin, 5 parts of foaming agent, 6 parts of surfactant, 10 parts of curing agent, and 90 parts of high-temperature ceramizable composite inorganic filler (Wherein containing 58.5 parts of mica, 13.5 parts of glass frit, 13.5 parts of aluminum hydroxide, 4.5 parts of vermiculite powder), 2.5 parts of silane coupling agent, all are parts by mass.

Embodiment 2

[0036] A high-temperature ceramizable phenolic foam composite material, which is composed of: 100 parts of expandable phenolic resin, 10 parts of foaming agent, 10 parts of surfactant, 12 parts of curing agent, and 130 parts of high-temperature ceramizable composite inorganic filler (Wherein containing 84.5 parts of kaolin, 19.5 parts of glass frit, 19.5 parts of limestone, 6.5 parts of perlite powder), 4 parts of silane coupling agent, all are parts by mass.

Embodiment 3

[0038] A high-temperature ceramizable phenolic foam composite material, which is composed of: 100 parts of expandable phenolic resin, 8 parts of foaming agent, 8 parts of surfactant, 11 parts of curing agent, and 110 parts of high-temperature ceramizable composite inorganic filler (which contains 71.5 parts of wollastonite powder, 16.5 parts of glass frit, 16.5 parts of dolomite, and 5.5 parts of vermiculite powder), and 3 parts of silane coupling agent, all of which are parts by mass.

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Abstract

The invention provides a high-temperature ceramizable phenolic foam composite material. The material is mainly prepared from, by mass, 100 parts of expandable phenolic resin, 5-10 parts of a foaming agent, 6-10 parts of a surfactant, 10-12 parts of a curing agent, 90-130 parts of high-temperature ceramizable composite inorganic filler and 2.5-4 parts of a silane coupling agent. A preparation method includes: weighing a certain quantity of the phenolic resin, proportionally adding the high-temperature ceramizable composite inorganic filler and the silane coupling agent, and using a stirrer for mixing completely; adding the surfactant, the foaming agent and the curing agent, fast stirring uniformly, injecting into a mould, and putting in a constant-temperature chamber for 150min+ / -10min at 75+ / -5 DEG C; cooling to the room temperature after curing molding, and demolding. The composite material is low in heat conductivity coefficient (smaller than or equal to W / (m.K) and high in compression strength, wherein normal-temperature compression strength is larger than or equal to 0.15MPa, and compression strength is larger than or equal to 0.1MPa after high-temperature treatment. In addition, appearance, performances and micro porous structures of the material can be kept under high-temperature aerobic conditions.

Description

technical field [0001] The invention relates to the technical field of polymer-based foam composite materials, in particular to a high-temperature ceramizable phenolic foam composite material and a preparation method thereof, which can be applied to fields such as thermal insulation, heat insulation, and fire prevention. Background technique [0002] Phenolic foam composite materials have excellent properties such as flame retardant, low smoke, low toxicity, heat resistance, heat preservation, and sound insulation, and have a wide temperature range (-196°C ~ +150°C). They are used in aerospace, national defense, It is widely used in the fields of shipbuilding, construction, chemical industry, etc., such as space shuttle heat insulation tiles, rocket ablation materials, submarine heat and sound insulation materials, civil aircraft bulkheads, building exterior wall insulation materials, central air-conditioning system air duct insulation Wait. The service temperature of pheno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L71/02C08K13/02C08K3/34C08K3/40C08K3/22C08K3/26C08J9/14C04B38/02C04B33/13C04B35/16
CPCC04B33/13C04B35/16C04B38/02C04B2235/48C08J9/141C08J2203/14C08J2361/06C08J2471/02C08L61/06C08L2201/02C08L2201/08C08L2203/14C08L71/02C08K13/02C08K3/34C08K3/40C08K2003/2227C08K3/346C08K2003/265
Inventor 石敏先黄志雄刘天祥秦岩丁杰沈益锋
Owner WUHAN UNIV OF TECH