Method for producing lightweight foamed pnenolic aldehyde laminated board

A technology of phenolic laminates and manufacturing methods, applied in the direction of lamination, lamination devices, chemical instruments and methods, etc., can solve the problems of incapable material production, insufficient mechanical strength, etc., and achieve low water absorption, good processability, and bending The effect of high modulus

Inactive Publication Date: 2016-10-05
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

[0003] Chinese patent CN1229025A discloses a polymer foam composition used as a substrate in a decorative composition, the decorative composition has at least one decorative layer on the substrate, wherein the substrate is made of one or more hair foaming agent, prepared by foaming a composition consisting of a resin matrix and a filler of one or more polymers, or a plurality of polymers selected from the group consisting of acrylonitrile-butadiene-styrene (ABS) polymers, polycarbonate Polyester, polystyrene, polyphenylene ether and polyvinyl chloride polymers, but the mechanical strength of this composition is not enough, so it cannot be applied to the material production of ventilation ducts of rail transit vehicles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A manufacturing method of lightweight foamed phenolic laminate, specifically adopts the following steps:

[0024] 1. Prepare phenolic resin glue

[0025] Add 4kg of coupling agent and 15kg of foamed beads to 100kg of alcohol-soluble phenolic resin, and stir evenly to obtain phenolic resin glue;

[0026] 2. Infiltrated glass fiber cloth

[0027] Scrape the phenolic resin glue prepared in step 1 evenly on the glass fiber cloth to fully infiltrate the glass fiber cloth. The glass fiber cloth used in this example has a weight of 50g / m 2 Of nonwovens;

[0028] 3. Dry

[0029] Put the glass fiber cloth soaked in step 2 in a dry and ventilated place for more than 8 hours to dry;

[0030] 4. Heated and pressurized to solidify after laminating glass fiber cloth

[0031] The glass fiber cloth dried in step 3 is laminated and pressed together, put into a mold, controlled at a temperature of 120° C., pressurized at 5 MPa, and cured to form a lightweight foamed phenolic laminate.

Embodiment 2

[0033] A manufacturing method of lightweight foamed phenolic laminate, specifically adopts the following steps:

[0034] 1. Prepare phenolic resin glue

[0035] Add 5kg of coupling agent and 18kg of foamed beads to 100kg of alcohol-soluble phenolic resin, and stir evenly to obtain phenolic resin glue;

[0036] 2. Infiltrated glass fiber cloth

[0037] Scrape the phenolic resin glue prepared in step 1 evenly on the glass fiber cloth to fully infiltrate the glass fiber cloth. The glass fiber cloth used in this example has a weight of 80g / m 2 Of nonwovens;

[0038] 3. Dry

[0039] Put the glass fiber cloth soaked in step 2 in a dry and ventilated place for more than 8 hours to dry;

[0040] 4. Heated and pressurized to solidify after laminating glass fiber cloth

[0041] The glass fiber cloth dried in step 3 is laminated and pressed together, placed in a mold, controlled at a temperature of 130° C., pressurized at 3 MPa, and cured to form a lightweight foamed phenolic laminate.

Embodiment 3

[0043] A manufacturing method of lightweight foamed phenolic laminate, specifically adopts the following steps:

[0044] 1. Prepare phenolic resin glue

[0045] Add 5kg of coupling agent and 20kg of foamed beads to 100kg of alcohol-soluble phenolic resin, and stir evenly to obtain phenolic resin glue;

[0046] 2. Infiltrated glass fiber cloth

[0047] Scrape the phenolic resin glue prepared in step 1 evenly on the glass fiber cloth to fully infiltrate the glass fiber cloth. The glass fiber cloth used in this example has a weight of 100g / m 2 Of nonwovens;

[0048] 3. Dry

[0049] Put the glass fiber cloth soaked in step 2 in a dry and ventilated place for more than 8 hours to dry;

[0050] 4. Heated and pressurized to solidify after laminating glass fiber cloth

[0051] The glass fiber cloth dried in step 3 is laminated and pressed together, placed in a mold, controlled at a temperature of 150° C., pressurized at 1 MPa, and cured to form a lightweight foamed phenolic laminate.

[0052] The d...

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Abstract

The invention relates to a method for producing a lightweight foamed pnenolic aldehyde laminated board. The method is characterized in that glass fiber cloth is infiltrated by a mixing solution of phenolic resin and foamed microsphere, after resin on a surface layer of the glass fiber cloth is dried, the multiple layers of the infiltrated glass fiber cloth are laminated together, the temperature is controlled at 120-150 DEG C, pressurization with 1-5 MPa is carried out, and the glass fiber cloth is subjected to curing molding to obtain the lightweight foamed pnenolic aldehyde laminated board. Compared with the prior art, the mechanical strength of the lightweight foamed pnenolic aldehyde laminated board is good, and the lightweight foamed pnenolic aldehyde laminated board can be used for producing an air pipe material of a rail transit delivery vehicle.

Description

Technical field [0001] The invention relates to the production of ventilation duct materials for modern rail transit vehicles, in particular to a manufacturing method of a lightweight foamed phenolic laminate. Background technique [0002] At present, phenolic laminates are based on phenolic resin as the adhesive, and fillers such as kraft paper, cotton cloth, asbestos cloth, glass cloth and insulating paper are used as substrates. After heating and pressure lamination, they are cured into laminates. The products are mainly used for printing. Circuit boards and mechanical parts, etc. [0003] Chinese patent CN1229025A discloses a polymer foam composition used as a substrate in a decorative composition, the decorative composition has at least one decorative layer on the substrate, and the substrate is made of one or more hair Foaming agent, prepared by foaming a composition composed of a resin matrix of one or more polymers and fillers, or multiple polymers selected from acrylonitr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/10B32B37/06B32B27/04B32B27/18B32B27/42
Inventor 杨金平毛建东
Owner 安徽复材科技有限公司
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