Method for improving impact resistance of bamboo products

An impact-resistant, bamboo product technology, applied in the joining of wooden veneers, manufacturing tools, reed/straw treatment, etc. Effect

Inactive Publication Date: 2018-08-14
安徽泓浩竹科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Apply it on the surface of the object and dry to form a smooth film, showing the original texture of the surface, which can protect the bamboo from erosion, maintain the surface pattern of the bamboo, and maintain the aesthetics, but the current varnish has insufficient impact resistance technical issues

Method used

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  • Method for improving impact resistance of bamboo products
  • Method for improving impact resistance of bamboo products

Examples

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Effect test

Embodiment 1

[0030] A method for improving the impact resistance of bamboo products, comprising the steps of:

[0031] S1, take 5-8 years old moso bamboo, cut off, remove knots, boil to soften, flatten, slice into pretreated bamboo strips, dry at 80°C until the moisture content is 10wt% to obtain bamboo wood;

[0032] S2, immerse the bamboo in the water of airtight container, heat to 90 ℃, stand 2h under 3 standard atmospheric pressures, cool, filter, dry naturally to obtain deglue bamboo;

[0033] S3, immerse the deglue bamboo in a polyacrylate glue solution with a solid content of 36wt% for 2 hours, and then hot press, the hot pressing pressure is 4MPa, the hot pressing temperature is 110°C, the ratio of the hot pressing time to the thickness of the bamboo after dipping is 25min / mm to obtain pretreated bamboo;

[0034] S4, coating the surface of the pretreated bamboo with anti-corrosion varnish, curing and drying to obtain impact-resistant bamboo strips, and weaving to obtain bamboo pro...

Embodiment 2

[0038] A method for improving the impact resistance of bamboo products, comprising the steps of:

[0039] S1. Take 5-8 year old moso bamboo, cut it off, remove knots, boil to soften, flatten, slice into pretreated bamboo strips, dry at 100°C until the moisture content is 8wt% to obtain bamboo material;

[0040] S2, immerse the bamboo in the water of airtight container, heat to 96 ℃, stand 3h under 2 standard atmospheric pressures, cool, filter, dry naturally to obtain deglue bamboo;

[0041] S3, immerse the deglue bamboo in a polyacrylate glue solution with a solid content of 30wt% for 5 hours, and heat-press forming. The hot-press pressure is 3MPa, and the hot-press temperature is 170°C. The ratio of the hot-press time to the thickness of the bamboo after dipping is 15min / mm to obtain pretreated bamboo;

[0042] S4, coating the surface of the pretreated bamboo with anti-corrosion varnish, curing and drying to obtain impact-resistant bamboo strips, and weaving to obtain bambo...

Embodiment 3

[0046] A method for improving the impact resistance of bamboo products, comprising the steps of:

[0047] S1, take 5-8 years old moso bamboo, cut off, remove knots, boil to soften, flatten, slice into pretreated bamboo strips, dry at 85°C until the moisture content is 9.5wt% to obtain bamboo;

[0048] S2, immerse the bamboo in the water of airtight container, heat to 92 ℃, stand 2.3h under 2.8 standard atmospheric pressure, cool, filter, dry naturally to obtain the deglue bamboo;

[0049] S3. Immerse the degummed bamboo in a polyacrylate glue solution with a solid content of 34wt% for 3 hours, and then heat-press forming. The hot-pressing pressure is 3.7 MPa, and the hot-pressing temperature is 130°C. The ratio of the hot-pressing time to the thickness of the bamboo after dipping Be 22min / mm, obtain pretreatment bamboo;

[0050] S4, coating the surface of the pretreated bamboo with anti-corrosion varnish, curing and drying to obtain impact-resistant bamboo strips, and weaving...

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Abstract

The invention discloses a method for improving impact resistance of bamboo products. The method comprises the following steps: crude moso bamboos of 5-8 years are taken for cutting, joint removal, water boiling softening, flattening and slicing to form pretreated bamboo strips, and are dried to form bamboo products; the bamboo products are dipped in water of a closed container for heating, high-pressure standing, cooling, filtration and natural airing to obtain glue-removed bamboo products; the glue-removed bamboo products are dipped in polyacrylate glue, and are molded through hot pressing toform pretreated bamboo products; corrosion-resistance varnish is coated on the surfaces of the pretreated bamboo products for curing and drying to obtain impact-resistance bamboo strips; and the impact-resistance bamboo strips are woven to obtain the bamboo products. The corrosion-resistance varnish is prepared by adopting the following process: preservative, a wetting agent, a dispersing agent,an anti-freezing agent, a thickening agent and a flatting agent are added in water to stir for full dissolving; then, the stirring speed is accelerated; oxidized polyethlene wax and bentonite composites are uniformly stirred; and then, waterborne polyurethane emulsion, water phenolic resins, a coalescing agent and a defoaming agent are uniformly stirred to obtain the corrosion-resistance varnish.The service life of the bamboo products can be effectively prolonged; and the obtained bamboo products are excellent in toughness and high in shock strength.

Description

technical field [0001] The invention relates to the technical field of bamboo products, in particular to a method for improving the impact resistance of bamboo products. Background technique [0002] Bamboo anti-corrosion methods generally remove the nutrient source in the bamboo or transform the nutrient source into inedible substances, or cut off the moisture and air required for the life of decaying bacteria and insects. The advantages are low processing cost and simple operation. The environment is non-polluting, and the disadvantage is that there is no lasting protection. [0003] Varnish, also known as varnish, is a coating composed of resin as the main film-forming substance and a solvent. Since both the paint and the coating film are transparent, it is also called transparent paint. Apply it on the surface of the object and dry to form a smooth film, showing the original texture of the surface, which can protect the bamboo from erosion, maintain the surface pattern...

Claims

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Application Information

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IPC IPC(8): B27D1/04B27D1/08B27G11/00B27K3/04B27K5/00B27K5/06B27K9/00C09D5/08C09D175/04C09D161/06C09D7/62C09D7/65
CPCB27D1/04B27D1/08B27G11/00B27K3/04B27K5/001B27K5/06B27K9/002C08L2205/03C09D5/08C09D7/62C09D7/65C09D175/04C08L61/06C08L23/30C08K9/04C08K9/08C08K3/346
Inventor 余宏浩袁保琴余龙
Owner 安徽泓浩竹科技股份有限公司
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