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Glue-free bamboo shaving board and preparation method thereof

A technology of particleboard and bamboo shavings, which is applied in the field of glue-free bamboo particleboard and its preparation, can solve the problems such as not considering the anti-mildew performance of the particleboard, and achieve the effects of improving comprehensive utilization rate, easy decomposition or degradation, and no toxic gas volatilization

Active Publication Date: 2018-05-15
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above scientific and technological literature studies the post-heat treatment of particleboards to reduce the amount of formaldehyde released from particleboards and the impact on other physical and mechanical properties, but does not consider the mildew resistance of particleboards.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Chipping and shaving bamboo is prepared into bamboo shavings with a chipper and a planer; sieve the leftovers produced by bamboo processing with a 2-mesh and 100-mesh sieve to obtain bamboo chips between 2 mesh and 100 mesh. Mix bamboo shavings and bamboo chips at a ratio of 2:1, dry to a moisture content of 30%, stir with a glue mixer and spray bamboo vinegar mixture with 16% dry mass of bamboo shavings (bamboo vinegar distillation temperature 180°C under normal pressure) Distillation, adding sulfuric acid with 0.5% of bamboo vinegar liquid), put it in a closed container for aging for 30 minutes, put it into a breathable cloth bag, and steam it in a high-pressure steamer at 110°C for 120 minutes, take it out, pave it into a slab while it is hot, and then After pre-pressing, hot-pressing (hot-pressing temperature 190°C, hot-pressing pressure 2.5MPa, hot-pressing time 50s / mm), cooling, cutting, and sanding, the glue-free bamboo particleboard was made.

Embodiment 2

[0036] Chipping and shaving bamboo is prepared into bamboo shavings with a chipper and a planer; sieve the leftovers produced by bamboo processing with a 2-mesh and 100-mesh sieve to obtain bamboo chips between 2 mesh and 100 mesh. Mix bamboo shavings and bamboo chips at a ratio of 3:1, dry to a moisture content of 50%, stir and spray bamboo vinegar mixture with 10% dry mass of bamboo shavings with a glue mixer (distillation temperature of bamboo vinegar is 190°C under normal pressure) Distillation, adding 1% sulfuric acid of bamboo vinegar liquid), put it in a closed container for aging for 45 minutes, put it into a breathable cloth bag, steam it in a high-pressure steamer at 160°C for 30 minutes, take it out, pave it into a slab while it is hot, and then After pre-pressing, hot-pressing (hot-pressing temperature 170°C, hot-pressing pressure 3.5MPa, hot-pressing time 60s / mm), cooling, cutting, and sanding, the glue-free bamboo particleboard was made.

Embodiment 3

[0038] Chipping and shaving bamboo is prepared into bamboo shavings with a chipper and a planer; sieve the leftovers produced by bamboo processing with a 2-mesh and 100-mesh sieve to obtain bamboo chips between 2 mesh and 100 mesh. Mix bamboo shavings and bamboo chips at a ratio of 4:1, dry to a moisture content of 40%, stir with a glue mixer and spray bamboo vinegar mixture with 20% dry weight of bamboo shavings (bamboo vinegar distillation temperature 170°C under normal pressure) Distillation, adding 1.5% phosphoric acid of bamboo vinegar liquid), put it in a closed container for aging for 50 minutes, put it into a breathable cloth bag, and steam it in a high-pressure steamer at 140°C for 60 minutes, take it out, pave it into a slab while it is hot, and then After pre-pressing, hot-pressing (hot-pressing temperature 200°C, hot-pressing pressure 3.5MPa, hot-pressing time 40s / mm), cooling, cutting, and sanding, the glue-free bamboo particleboard was made.

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PUM

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Abstract

The invention discloses a glue-free bamboo shaving board and a preparation method thereof. The preparation method includes: subjecting bamboo shavings obtained by chipping and flaking bamboo and bamboo chips obtained by screening bamboo processing leftovers to drying, treating by applying treatment liquid obtained by mixing distilled bamboo vinegar and strong acid, airtight aging, high-temperaturesteaming, paving and hot pressing. By subjecting the bamboo shavings to treating with acidic treatment liquid, airtight aging and high-temperature steaming, ingredients like starch, sugar and tannincontained in the bamboo are activated; part of lignin is fused under action of the acidic treatment liquid in the process of hot pressing to form a gelatinous substance, and the glue-free shaving board is obtained by glue-free gluing under hydrothermal action during hot pressing. No adhesive is used in the process of production, and the glue-free bamboo shaving board is free of chemical substanceslike formaldehyde, thereby being an environment-friendly artificial board, and can be widely used as an indoor decorating material or for furniture manufacturing.

Description

technical field [0001] The invention belongs to the technical field of wood-based panel production and bamboo wood material processing, and in particular relates to a glue-free bamboo particle board and a preparation method thereof. Background technique [0002] my country is rich in bamboo resources, and the bamboo forest area, bamboo species and economic utilization level rank first in the world, and it is known as the "Kingdom of Bamboo". There are about 100 genera and more than 1,200 species of bamboo in the world. In my country, there are 39 genera and more than 500 species. Among them, 16 genera and more than 200 species have been cultivated and utilized because of their high economic and ecological value. Bamboo is a natural fast-growing material with a short growth cycle. Bamboo has a similar texture to wood. my country is rich in bamboo resources. Rational development and utilization of bamboo building materials can alleviate the contradiction between domestic timbe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/02B27N3/08B27N1/02B27K3/12B27K3/52B27K9/00
Inventor 曾钦志卢秋芬饶久平陈奶荣范毜仔林巧佳
Owner FUJIAN AGRI & FORESTRY UNIV
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