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Cross-linked PVC foam waste artificial board and preparation method thereof

A foam waste and wood-based panel technology, applied in the field of composite materials, can solve the problems of high glue consumption and product density, environmental hazards, and inability to secondary processing, etc., to achieve the goals of reducing the amount of glue, improving moisture resistance, and improving mechanical properties Effect

Pending Publication Date: 2022-02-11
BAODING WEISAI COMPOSITE MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is mainly due to the fact that this foam is a thermosetting plastic and cannot be reprocessed
The current mainstream treatment methods are incineration and landfill, which will not only increase the cost of the wind power industry, but also bring huge environmental hazards
[0003] Although the patent CN101733893A provides a solution, the amount of glue used and the product density of the technical solution are much higher than those of commercially available products with the same function, so it is difficult to be accepted and promoted by the market

Method used

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  • Cross-linked PVC foam waste artificial board and preparation method thereof
  • Cross-linked PVC foam waste artificial board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The formula is 100 parts of cross-linked PVC foam waste powder, 5 parts of KH560 coupling agent, 10 parts of adhesive, wherein the adhesive formula is 100 parts of 4110 polyether polyol, 150 parts of PM-200 polymethyl polyphenyl Isocyanate, 100 parts E51 epoxy resin, 50 parts water content 10% methyl hexahydrophthalic anhydride. The process is:

[0027] S1: Pour the cross-linked PVC foam waste powder and coupling agent into the planetary stirring tank, and mix for 5 minutes;

[0028] S2: Add the prepared adhesive into the planetary stirring tank and mix for 5 minutes;

[0029] S3: Divide the stirred material into 4 parts, and lay a layer of reinforcing ribs for each part into the mold, wherein the reinforcing ribs are bamboo sticks with a diameter of 2 mm;

[0030] S4: Place the mold on a single-layer flat vulcanizing machine, pressurize at 10MPa, and keep the pressure at room temperature for 5 minutes;

[0031] S5: Take out the pre-pressed plate from the mold, trans...

Embodiment 2

[0033] The formula is 100 parts of cross-linked PVC foam waste powder, 5 parts of KH560 coupling agent, 10 parts of adhesive, wherein the adhesive formula is 100 parts of 4110 polyether polyol, 150 parts of PM-200 polymethyl polyphenyl Isocyanate, 100 parts E51 epoxy resin, 50 parts water content 10% methyl hexahydrophthalic anhydride. The process is:

[0034] S1: Pour the cross-linked PVC foam waste powder and coupling agent into the planetary stirring tank, and mix for 5 minutes;

[0035] S2: Add the prepared adhesive into the planetary stirring tank and mix for 5 minutes;

[0036] S3: Divide the stirred material into 4 parts, and lay a layer of reinforcing ribs for each part into the mold, wherein the reinforcing ribs are waste blade skins with a width of 3 mm;

[0037] S4: Place the mold on a single-layer flat vulcanizing machine, pressurize at 10MPa, and keep the pressure at room temperature for 5 minutes;

[0038] S5: Take out the pre-pressed plate from the mold, tran...

Embodiment 3

[0040] The formula is 100 parts of cross-linked PVC foam waste powder, 5 parts of KH560 coupling agent, 10 parts of adhesive, wherein the adhesive formula is 100 parts of 4110 polyether polyol, 150 parts of PM-200 polymethyl polyphenyl Isocyanate, 100 parts E51 epoxy resin, 50 parts water content 10% methyl hexahydrophthalic anhydride. The process is:

[0041] S1: Pour the cross-linked PVC foam waste powder and coupling agent into the planetary stirring tank, and mix for 5 minutes;

[0042] S2: Add the prepared adhesive into the planetary stirring tank and mix for 5 minutes;

[0043] S3: Divide the stirred material into 4 parts, and lay a layer of reinforcing ribs for each part poured into the mold, wherein the reinforcing ribs are glass fiber mesh cloth with a hole diameter of 5 mm;

[0044] S4: Place the mold on a single-layer flat vulcanizing machine, pressurize at 10MPa, and keep the pressure at room temperature for 5 minutes;

[0045] S5: Take out the pre-pressed plate...

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Abstract

The invention belongs to the technical field of composite materials, particularly relates to a cross-linked PVC foam waste artificial board and a preparation method thereof, and solves the problems that in the prior art, a large amount of solid waste is generated in the manufacturing process of a cross-linked PVC foam sleeve material, and waste wind power blades are difficult to recycle. The preparation method comprises the following steps: pouring the crosslinked PVC foam waste and the coupling agent into a planetary stirring kettle, and mixing; adding the resin adhesive into the planetary stirring kettle, and mixing; dividing the stirred materials into a plurality of parts, and laying a layer of reinforcing ribs when each part is poured into the mold; wherein the reinforcing ribs are one or more of bamboo sticks, glass fiber bundles and waste wind power blade skins; placing the mold on a single-layer plate vulcanizing machine, pressurizing, and keeping the pressure at normal temperature to obtain a pre-pressing plate; and taking out the pre-pressing plate from the mold, conveying the pre-pressing plate into a multi-layer press vulcanizer, pressurizing, keeping the pressure, cooling to below, and taking out the pre-pressing plate. Compared with an existing artificial board, the prepared artificial board is excellent in mechanical property and moisture resistance and can be used indoors and outdoors.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a cross-linked PVC waste artificial board and a preparation method thereof. Background technique [0002] Rigid cross-linked polyvinyl chloride foam is an indispensable core material for wind turbine blades, and its processing will generate about 30% solid waste. The treatment of these solid wastes and the treatment of waste blades are still difficult problems in the industry. This is mainly due to the fact that this foam is a thermosetting plastic and cannot be reprocessed. The current mainstream treatment methods are incineration and landfill, which will not only increase the cost of the wind power industry, but also bring huge environmental hazards. [0003] Although the patent CN101733893A provides a solution, the amount of glue used and the product density of the technical solution are much higher than those of commercially available products with t...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L75/08C08L63/00C08L97/02C08K5/5435C08K7/14
CPCC08L27/06C08L75/08C08L63/00C08L97/02C08K5/5435C08K7/14
Inventor 黄平安何小通陈浩
Owner BAODING WEISAI COMPOSITE MATERIALS TECH
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