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Rockwool fiber reinforced phenolic foam composite material and preparation method thereof

A technology of rock wool fiber and phenolic foam, which is applied in the field of rock wool fiber reinforced phenolic foam composite material and its preparation, can solve the problems of high cost, low compressive strength, and fragility of the material, and achieve high-strength effects

Inactive Publication Date: 2018-08-17
SHIJIAZHUANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In engineering applications, the current use of phenolic foam materials is mainly in the form of sandwich panels, that is, with a certain thickness of steel or inorganic materials such as glass fiber fabrics, gypsum, water glass, glass magnesium board, light calcium silicate, cement Such as coating on the surface of phenolic foam, this composite phenolic foam board can reach Class A non-combustible, has been used in some applications, but the cost is high, and it still cannot solve the problem of low compressive strength and brittleness of the material

Method used

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  • Rockwool fiber reinforced phenolic foam composite material and preparation method thereof
  • Rockwool fiber reinforced phenolic foam composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0021] Expandable phenolic resin 100kg, chopped 3mm rock wool fiber 5kg, blowing agent 10kg, surfactant 6kg, curing agent 16.2kg, described curing agent is phosphoric acid, p-toluenesulfonic acid and water, described phosphoric acid: P-toluenesulfonic acid: the water mass ratio is 1:1:1, the surfactant is Tween 80, and the blowing agent is n-pentane. Preparation method: The rock wool fiber is pre-chopped to 3mm by mechanical ball milling or chopping, and then soaked in a silane coupling agent and dried; (2) mix the expandable phenolic resin with a surfactant, After the foaming agent is mixed evenly, add the dried rock wool fiber in step (1) and stir evenly; (3) finally add the curing agent, pour into the mold and foam to prepare the rock wool fiber reinforced phenolic foam composite material. The foaming temperature is 70°C, the foaming time is 25 minutes, and the curing time is 30 minutes.

[0022] The obtained rock wool fiber / phenolic foam composite material has a slag drop...

Embodiment 2

[0024] Expandable phenolic resin 100 kg, rock wool fiber 10 kg chopped 3mm, foaming agent 15 kg, surfactant 9 kg, curing agent 16.2 kg, the curing agent is phosphoric acid, p-toluenesulfonic acid and water, The phosphoric acid: p-toluenesulfonic acid: water mass ratio is 1:1:1, the surfactant is Tween 80, and the foaming agent is n-pentane.

[0025] Preparation method: The rock wool fiber is pre-chopped to 3mm by mechanical ball milling or chopping, and then soaked in a silane coupling agent and dried; (2) mix the expandable phenolic resin with a surfactant, After the foaming agent is mixed evenly, add the dried rock wool fiber in step (1) and stir evenly; (3) finally add the curing agent, pour into the mold and foam to prepare the rock wool fiber reinforced phenolic foam composite material. The foaming temperature is 75°C, the foaming time is 30 minutes, and the curing time is 30 minutes.

[0026] The resulting rock wool fiber / phenolic foam composite material has a slag drop...

Embodiment 3

[0028] Expandable phenolic resin 100, rock wool fiber 15% of chopped 3mm, foaming agent 20%, surfactant 13.5%, curing agent 16.2%, described curing agent is phosphoric acid, p-toluenesulfonic acid and water, so Described phosphoric acid: p-toluenesulfonic acid: water mass ratio is 1:1:1, described surfactant is Tween 80, and described foaming agent is n-pentane.

[0029] Preparation method: The rock wool fiber is pre-chopped to 3mm by mechanical ball milling or chopping, and then soaked in a silane coupling agent and dried; (2) mix the expandable phenolic resin with a surfactant, After the foaming agent is mixed evenly, add the dried rock wool fiber in step (1) and stir evenly; (3) finally add the curing agent, pour into the mold and foam to prepare the rock wool fiber reinforced phenolic foam composite material. 80 ℃ of foaming temperatures, 30 minutes of foaming time, and 30 minutes of curing time.

[0030] The obtained rock wool fiber / phenolic foam composite material has a...

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Abstract

The invention relates to a rockwool fiber reinforced phenolic foam composite material including, by weight, the following raw material of 100 parts of expandable phenolic resin, 3-20 parts of rockwoolfiber, 2-25 parts of foaming agent, 2-15 parts of surface active agent and 3-20 parts of curing agent. The rockwool fiber is short cut rockwool. The rockwool fiber reinforced phenolic foam compositematerial has the advantages of preparing phenolic foam with high strength, toughness and fire resistance, and being capable of adjusting the mechanical properties and fire resistance of foam materialby the adjustment of the length and amount of the rock wool fiber. Furthermore, the rockwool fiber reinforced phenolic foam composite material manufactured by the technical scheme can be widely used in industries having high requirements for heat preservation and fire resistance, such as high-rise buildings, aviation industry, transportation and petrochemical industry.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a rock wool fiber reinforced phenolic foam composite material and a preparation method thereof. Background technique [0002] Phenolic foam material has excellent characteristics such as good heat insulation, flame retardant, low smoke, low toxicity and low water absorption during combustion. In recent years, it has broad application prospects in high-rise buildings, aviation industry, transportation, petrochemical and other industries. Especially as a building exterior wall insulation material, it can not only meet the requirements of building energy saving and consumption reduction, but also achieve Class A non-combustibility after being combined with inorganic materials, which can meet the fire protection requirements of Gongxiao [2011] No. 65 document on building exterior insulation materials. Moreover, compared with inorganic external insulation materials such as foamed co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08K7/10C08J9/14C08J5/06
CPCC08J5/06C08J9/141C08J2203/14C08J2361/06
Inventor 李中秋次立杰贾鹏飞张玲
Owner SHIJIAZHUANG UNIVERSITY