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A kind of preparation method of glass wool reinforced phenolic foam composite board

A technology of phenolic foam and glass wool is applied in the field of preparation of glass wool reinforced phenolic foam composite board, and can solve the problems of high rigidity of phenolic foam, limited application of phenolic foam, low compressive and tensile strength, etc.

Active Publication Date: 2020-12-15
安徽复材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the performance of phenolic foam is excellent, due to the inherent benzene ring structure in phenolic resin, phenolic foam has high rigidity, high brittleness, and low compressive and tensile strength.
Under the same density conditions, the strength of phenolic foam is lower than that of extruded polystyrene foam, which limits the further application of phenolic foam

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 10 parts of diluent, 5 parts of emulsifier, and 5 parts of foaming agent to 100 parts of phenolic resin in order by weight, set the stirring speed at 1300r / min, stir for 1min, then add 15 parts of curing agent, stir evenly to obtain foam Foaming resin glue; scrape the foaming resin glue on the mold at a height of 5mm, put in glass wool, and then scrape and coat the foaming resin glue at a height of 5mm on the upper surface of the glass wool; cover the mold and lock it Mold, the pressure is 0.8MPa; the oven temperature is set to 55°C, the mold is pushed into the oven, cured for 60 minutes, and the glass wool reinforced phenolic foam composite board is obtained after demoulding.

Embodiment 2

[0027] Add 15 parts of diluent, 8 parts of emulsifier, and 10 parts of foaming agent to 100 parts of phenolic resin in order by weight, set the stirring speed at 1400r / min, stir for 2min, then add 18 parts of curing agent, stir evenly to obtain foam Foaming resin glue; scrape the foaming resin glue on the mold at a fixed height of 10mm, put in glass wool, and then scrape and coat the foaming resin glue at a fixed height of 10mm on the upper surface of the glass wool; cover the mold and lock it Mold, the pressure is 1.0MPa; the oven temperature is set to 65°C, the mold is pushed into the oven, cured for 70 minutes, and the glass wool reinforced phenolic foam composite board is obtained after demoulding.

Embodiment 3

[0029] A kind of preparation method of glass wool reinforced phenolic foam composite board, the method comprises the following steps:

[0030] 1) Preparation of foaming resin glue: add diluent, emulsifier, and foaming agent to the phenolic resin in sequence, stir at a speed of 1300r / min for 2 minutes, then add curing agent and stir evenly to obtain foaming resin Glue;

[0031] 2) Evenly coat a layer of foaming resin glue on the mold, and then make the density 10kg / m 3 , glass wool with a thickness of 20mm is placed on the mold, and a layer of foaming resin glue with a thickness of 20mm is evenly coated on the glass wool;

[0032] 3) Press the mold upper cover on the glass wool, keep the pressure between the mold upper cover and the glass wool at 0.5 MPa, and then heat at 90°C for 60 minutes to solidify the foaming resin glue to obtain glass wool reinforced phenolic foam Composite board.

[0033] Wherein, the foaming resin glue solution includes the following components and ...

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Abstract

The invention relates to a preparation method of a glass wool enhanced phenolic foam composite board. The preparation method includes following steps: 1), preparing foam resin glue; 2), uniformly coating a die with a layer of the foam resin glue, putting glass wool on the die, and uniformly coating the glass wool with a layer of the foam resin glue; 3), pressing an upper cover of the die onto theglass wool, and heating to enable the foam resin glue to solidify to obtain the glass wool enhanced phenolic foam composite board. Compared with the prior art, the preparation method has the advantages that in the composite board which is processed finally, phenolic foam and the glass wool are interwoven into a whole, and the glass wool has high tensile strength and high elastic coefficient, so that tensile performance, compressive performance, bending resistance and impact resistance of the composite board are improved, and the defect that glass wool boards are insufficient in compressive strength is improved.

Description

technical field [0001] The invention belongs to the technical field of phenolic foam materials, and relates to a method for preparing a glass wool-reinforced phenolic foam composite board. Background technique [0002] Phenolic foam is a foam made of phenolic resin, flame retardant, smoke suppressant, curing agent, foaming agent and other additives, etc., after preparation and processing. Phenolic foam has low thermal conductivity, lower water absorption than other inorganic thermal insulation materials, has good heat resistance and flame retardancy, and will not produce toxic gas and smoke when burned. Therefore, phenolic foam has been widely used in the fields of construction, machinery, transportation, chemical industry, etc. Although the performance of phenolic foam is excellent, due to the inherent benzene ring structure in phenolic resin, phenolic foam has high rigidity, high brittleness, and low compressive and tensile strength. Under the condition of the same densi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/06C08K7/14C08J9/14
CPCC08J9/141C08J9/144C08J2203/14C08J2203/142C08J2361/06C08K7/14
Inventor 杨金平毛建东
Owner 安徽复材科技有限公司
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