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Machining method of low-temperature oil heat modified bamboo

A processing method and thermal modification technology, applied in the direction of sugarcane mechanical processing, mechanical equipment, etc., can solve the problems of bamboo physical and mechanical properties, long technical treatment cycle, etc., to improve anti-corrosion and mildew resistance, long-lasting protective effect, and reduce loss Effect

Inactive Publication Date: 2018-10-09
朱昆鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology has a long treatment cycle and has a certain impact on the physical and mechanical properties of bamboo.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Bamboo drying: take moso bamboo as an example, first process it into bamboo strips with a thickness of 6mm, and dry the bamboo to a moisture content of 12%;

[0020] (2) Prepare the solution: add maleic anhydride to tung oil at a temperature of 70°C, the mass ratio of tung oil to maleic anhydride is 1:20, start the stirrer, and stir until completely mixed;

[0021] (3) Solution heating: heat the prepared mixed oil solution to 140°C;

[0022] (4) Treatment stage: immerse the bamboo in constant temperature hot oil and heat it for 1 hour;

[0023] (5) Surface treatment: Take out the bamboo, wipe off the excess oil solution on the surface, and then put it into a drying and disinfecting carbon dryer. The heating temperature of the drying and disinfecting carbon dryer is 160 ° C, and the heating time is 2 hours. The silk powder is carbonized, and the degree of carbonization is 5%.

Embodiment 2

[0025] (1) Bamboo drying: take moso bamboo as an example, first process it into bamboo strips with a thickness of 6mm, and dry the bamboo to a moisture content of 12%;

[0026] (2) Prepare the solution: add maleic anhydride to soybean oil at a temperature of 70°C, the mass ratio of soybean oil to maleic anhydride is 1:10, start the agitator, and stir thoroughly until completely mixed;

[0027] (3) Solution heating: heat the prepared oil mixed solution to 140°C;

[0028] (4) Treatment stage: immerse the bamboo in constant-temperature hot oil, and heat it for 1 hour;

[0029] (5) Surface treatment: Take out the bamboo, wipe off the excess oil solution on the surface, and then put it into a drying and disinfecting carbon dryer. The heating temperature of the drying and disinfecting carbon dryer is 170 ° C, and the heating time is 3 hours. The silk powder is carbonized, and the degree of carbonization is 25%.

Embodiment 3

[0031] (1) Bamboo drying: take moso bamboo as an example, first process it into bamboo strips with a thickness of 6mm, and dry the bamboo to a moisture content of 12%;

[0032] (2) Prepare the solution: add maleic anhydride to tung oil at a temperature of 70°C, the mass ratio of tung oil to maleic anhydride is 1:20, start the stirrer, and stir until completely mixed;

[0033] (3) Solution heating: heat the prepared oil mixed solution to 140°C;

[0034] (4) Treatment stage: immerse the bamboo in constant temperature hot oil, and heat it for 0.5h;

[0035] (5) Surface treatment: Take out the bamboo, wipe off the excess oil solution on the surface, and then put it into a drying and disinfecting carbon dryer. The heating temperature of the drying and disinfecting carbon dryer is 190 ° C, and the heating time is 4 hours. The silk powder is carbonized, and the degree of carbonization is 30%.

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Abstract

The invention discloses a machining method of low-temperature oil heat modified bamboo. The method comprises following steps of firstly, bamboo drying, wherein the bamboo is dried until the water containing rate ranges from 5 to 12%; secondly, solution preparation, wherein under the temperature environment being 30 to 150 DEG C, a coupling agent is added into oil, and sufficient stirring is carried out until complete mixing is achieved; thirdly, solution heating, wherein the prepared oil mixed solution is heated, and is heated to 100 to 180 DEG C; fourthly, treatment, wherein the bamboo is completely immersed in constant-temperature hot oil, and heating treatment is carried out for 0.5 to 3 h; fifthly, surface treatment, wherein the bamboo is taken out, a surface remaining oil solution iswiped up, then, the bamboo is put into a drying, disinfecting and carbonizing machine, the heating temperature of the drying, disinfecting and carbonizing machine ranges from 160 to 190 DEG C, the heating time ranges from 2 to 4 hours, bamboo chip and bamboo filament powder is carbonized, and the carbonizing degree ranges from 5 to 30%.

Description

technical field [0001] The invention belongs to the technical field of biomass material processing, and in particular relates to a heat treatment and impregnation treatment method for bamboo, in particular to a heat treatment and impregnation treatment method using oil as a medium. Background technique [0002] Bamboo is an advantageous resource in our country, and bamboo has advantages such as fast production speed, high output, and good mechanical properties. It is widely used in various fields, such as building materials, transportation materials, engineering materials, etc. The anisotropy of bamboo and the nutrients in bamboo make problems such as cracking and mildew due to changes in temperature and humidity during application. The main reason is that bamboo has a high water content. Therefore, it is necessary to control the reasonable moisture content before the modification of bamboo. [0003] Heat treatment is a relatively mature technology in material modification....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27J1/00
CPCB27J1/00
Inventor 朱昆鹏
Owner 朱昆鹏
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