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Preparation method of recombined bamboo with oil heat treatment for outdoor use

A technology for reorganizing bamboo and outdoor, applied in wood treatment, wood treatment details, wood heating and other directions, can solve the problems of easy deformation, mildew, low viscosity of vegetable oil, limited improvement of mechanical properties, etc., and achieve high utilization rate of raw materials. , Natural and beautiful texture, excellent mechanical properties

Active Publication Date: 2018-02-02
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, this kind of bamboo products are prone to deformation and mildew when used outdoors under the sun and rain.
[0004] ZL2014102465484 discloses a modified treatment method for wood and bamboo. However, after oil heat treatment of bamboo, although the anti-mold performance has been improved, due to the limitation of the hot pressing process, the degree of improvement in mechanical properties is limited.
In addition, this method uses vegetable oil for oil heat treatment. Due to the low viscosity and easy flow of vegetable oil, the oil will overflow at high temperature outdoors (the ground temperature in summer can reach 60°C-80°C), which will cause trouble for later maintenance and cause environmental damage. Pollution

Method used

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  • Preparation method of recombined bamboo with oil heat treatment for outdoor use
  • Preparation method of recombined bamboo with oil heat treatment for outdoor use
  • Preparation method of recombined bamboo with oil heat treatment for outdoor use

Examples

Experimental program
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Effect test

Embodiment

[0018] The preparation method and performance test of the recombined bamboo are as follows.

[0019] a, immerse the bamboo (sheet) with a thickness of 8mm under the liquid level of a heat treatment tank equipped with methyl silicone oil, heat the heat treatment tank, so that the methyl silicone oil reaches different temperatures (see Table 1, 2 for details), and keep warm for 2h; b. After 10-15 minutes, release the methyl silicone oil in the heat treatment tank, and take out the sheet; c. Rolling and opening: use rolling equipment. see Figure 1-3 , The rolling equipment includes two pairs of rolling rollers 1 arranged in sequence from left to right. The two rolling rollers 11 and 12 that form a pair of rolling rollers are arranged up and down, and an adjustable gap T is left therebetween. tooth 2. From left to right, the gap between the upper and lower rolling rollers that make up a pair of rolling rollers decreases; and the screw threads of the helical convex teeth of two...

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Abstract

The invention provides a preparing method for outdoor oil heat treatment recombined bamboo wood. The mechanical performance of the recombined bamboo wood prepared through the method is obviously improved, and the recombined bamboo wood prepared through the method has very good corrosion resisting and mold preventing properties and is good in size stability and suitable for outdoor usage. The preparing method comprises the steps that oil heat treatment is conducted, a bamboo wood sheet with the thickness ranging from 7 mm to 9 mm is immersed below the liquid level of a heat treatment tank with methylsilicone oil, the heat treatment tank is heated, the temperature of the methylsilicone oil is made to range from 145 DEG C to 200 DEG C, and insulating is conducted for 1 h-3 h; after 10 min-15 min, the methylsilicone oil in the heat treatment tank is discharged, and the sheet is taken out; grinding and fiber splitting are conducted, the sheet is ground into a bamboo bundle with the thickness ranging from 2 mm to 3 mm, the fiber of the bamboo bundle is continuous in the longitudinal direction and loose in the transverse direction to be connected in a staggered manner, and meanwhile the function of primary oil removing can be achieved; oil removing is conducted, and the bamboo bundle is subjected to further oil removing through a non-ionic surface active agent; and glue dipping, assembly and hot press are conducted, and after the bamboo bundle is immersed in glue and dried, assembly is conducted along texture, hot press is conducted, and the recombined bamboo wood is formed.

Description

technical field [0001] The invention relates to a method for preparing recombined bamboo, in particular to a method for preparing recombined bamboo with oil heat treatment for outdoor use. The recombined bamboo prepared by the method has excellent mechanical properties, good corrosion and mildew resistance, and high dimensional stability. Background technique [0002] China's bamboo forest area ranks first in the world. Abundant bamboo resources provide a reliable raw material basis for my country's processing and utilization, and my country's bamboo processing and utilization level has always been in the leading position in the world. Bamboo woven plywood, bamboo curtain plywood, bamboo laminate, bamboo plywood, bamboo floor, bamboo wood composite board and other products have been developed successively, which are widely used in construction, vehicles, packaging, decoration, furniture and other fields. [0003] However, at present, this bamboo product is prone to deformat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27J1/00B27K3/34B27K5/00
CPCB27J1/00B27K3/34B27K5/001
Inventor 程大莉李延军许斌张晓冬何文蒋身学张齐生
Owner NANJING FORESTRY UNIV
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