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Formaldehyde-free bamboo shaving board and preparation method thereof

A particleboard and zero-formaldehyde technology, which is applied in the field of zero-formaldehyde bamboo particleboard and its preparation, can solve the problems of difficulty in painting and processing boards, affecting use, etc., and achieve the effect of solving the problem of formaldehyde pollution and superior mechanical properties

Inactive Publication Date: 2016-12-07
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention with the publication number "CN 104290169 A" discloses a production process of a zero-formaldehyde density fiberboard, using diphenylmethane diisocyanate MDI as an adhesive, but this method requires a release agent for later-stage paint processing of the board. Bring difficulties and affect the use of

Method used

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  • Formaldehyde-free bamboo shaving board and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 100 parts of bamboo shavings are applied with 1 part of surface treatment agent (isocyanate and maleic anhydride are mixed in a mass ratio of 1:2) and dried to a moisture content of 5wt%, sprayed into 6 parts of modified unsaturated polyester resin, the modified The raw material composition of the unsaturated polyester resin is calculated in parts by weight: 100 parts of unsaturated polyester resin, 1 part of tert-butyl hydroperoxide, 1 part of cobalt cyclooctanoate and 2 parts of coupling agent (the coupling agent is silane coupling Coupling agent and titanate coupling agent are mixed at a mass ratio of 1:1), adding 0.5 parts of paraffin, forming a billet, and hot pressing under the conditions of temperature 120 ° C, pressure 10 MPa, and time 7 min to obtain a bamboo particleboard with a thickness of 12 mm.

Embodiment 2

[0024] 100 parts of bamboo shavings are applied with 0.01 part of surface treatment agent (acetyl ketone and epichlorohydrin are mixed in a mass ratio of 3:1) and dried to a moisture content of 12wt%, sprayed into 11 parts of modified unsaturated polyester resin, the modified The raw material composition of permanent unsaturated polyester resin is calculated in parts by weight: 100 parts of unsaturated polyester resin, 0.1 part of dicumyl peroxide, 0.01 part of cobalt cyclooctanoate and 0.7 part of coupling agent (coupling agent is silane The coupling agent and the titanate coupling agent are mixed at a mass ratio of 2:5), adding 0.5 parts of paraffin, forming a billet, and hot pressing under the conditions of temperature 200°C, pressure 4MPa, and time 6min to obtain a bamboo particleboard with a thickness of 18mm.

Embodiment 3

[0026] 100 parts of bamboo shavings were applied with 1.5 parts of surface treatment agent (mixed with isocyanate and maleic anhydride at a mass ratio of 1:2) and dried to a moisture content of 8 wt%, sprayed into 13 parts of modified unsaturated polyester resin, the modified The raw material composition of unsaturated polyester resin is calculated in parts by weight: 100 parts of unsaturated polyester resin, 5 parts of methyl ethyl ketone peroxide, 2 parts of cobalt cyclooctanoate and 3 parts of coupling agent (coupling agent is silane coupling agent and The titanate coupling agent was mixed at a mass ratio of 2:1), and 1 part of paraffin was added to form a billet. The bamboo particleboard with a thickness of 12 mm was obtained by hot pressing at a temperature of 160 °C, a pressure of 3 MPa, and a time of 5 min.

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Abstract

The invention relates to a zero-formaldehyde bamboo particle board and a preparation method thereof. The raw material composition of the bamboo particle board is calculated in parts by weight: 100 parts of bamboo shavings, 6-20 parts of modified unsaturated polyester resin, and 0.01-2 parts of surface treatment agent part and 0.5‑2 parts of water resistant agent. The invention uses the modified unsaturated polyester resin as an adhesive and treats the surface of the bamboo shavings to prepare the zero-formaldehyde bamboo particle board. The prepared bamboo particle board does not contain formaldehyde, and the board has good water resistance, high mechanical properties and good paint adhesion. , The existing dry-process bamboo particleboard production line can be industrialized with a slight modification, which can effectively solve the problem of formaldehyde pollution in the living space and provide a new solution for wood-based panel products to get rid of the problem of formaldehyde release.

Description

technical field [0001] The invention belongs to the field of material preparation, and more specifically relates to a formaldehyde-free bamboo particleboard and a preparation method thereof. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for indoor air quality. Most of the home decoration boards and furniture boards come from three major boards, namely fiberboard, particle board and plywood. They are made of bamboo wood and adhesives, which slowly release formaldehyde during use, causing indoor air pollution and affecting the health of residents. Long-term exposure to high concentrations of formaldehyde can even cause cancer. For more than 100 years, people have tried to eliminate the release of formaldehyde from urea-formaldehyde products, with little success. Because of its low cost, water and corrosion resistance, good strength, and simple process, the social demand continues to increase. my country's a...

Claims

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Application Information

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IPC IPC(8): B27N3/08B27N3/02B27N3/00B27N1/00C09J167/06
CPCB27N3/08B27N1/00B27N3/002B27N3/02C09J167/06
Inventor 李燃吴振增庄清平牛敏谢拥群杨文斌
Owner FUJIAN AGRI & FORESTRY UNIV
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