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Treatment method for prolonging effective time of mildew-proof bamboo materials

A technology with effective time and treatment method, applied in wood treatment, wood treatment details, reed/straw treatment, etc., can solve the problems of inability to function for a long time, loss, loss of bamboo antifungal agent, etc., to shorten the drying time, arrange neatly, The effect of prolonging the effective time

Active Publication Date: 2018-11-30
ANHUI XINDA HOME FURNISHING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The biological mechanism and biochemical process of mildew, moth and decay of bamboo and wood are basically similar, and the chemical composition of bamboo and wood is also similar to the invading bacteria. Therefore, the antifungal agent for bamboo can be used for reference. But in the specific implementation process, due to the fast growth of bamboo, it has less fiber cell content and more parenchyma. Secondly, bamboo is a hydrophilic material. Short, easy to be decomposed by microorganisms, unable to act for a long time, resulting in serious loss of bamboo antifungal agent, and use outdoors or in some humid environments may cause serious loss, affecting the service life of the material. Therefore, although the existing technology has Relevant research, but still unable to meet the requirements for use

Method used

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  • Treatment method for prolonging effective time of mildew-proof bamboo materials

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Experimental program
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Effect test

Embodiment 1

[0019] A processing method for prolonging the effective time of mildew-resistant bamboo, comprising the following contents:

[0020] (1) Dry the bamboo at a temperature of 100°C until the water content is 48%, stop drying, put the bamboo after the initial drying into a treatment agent with a mass concentration, and pressurize at a temperature of 88°C To 3MPa, treat for 2.5 hours, return to normal pressure after completion, rinse with water to normal temperature;

[0021] The treatment agent includes the following raw materials in parts by weight: 15 parts of ammonium oxalate, 25 parts of β-chitosan, 4.5 parts of potassium carbonate, 2 parts of guanidine nitrate, 20 parts of absolute ethanol, 35 parts of N,N-dimethylformamide parts, 550 parts of water;

[0022] (2) drying the bamboo treated in step (1) at a temperature of 80°C for 5 hours until the moisture content is lower than 10%;

[0023] (3) Immerse the dried bamboo in step (2) in the antifungal agent, keep it under the ...

Embodiment 2

[0031] A processing method for prolonging the effective time of mildew-resistant bamboo, comprising the following contents:

[0032] (1) Dry the bamboo at a temperature of 95°C until the water content is 50%, stop drying, put the bamboo after the initial drying into a treatment agent with a mass concentration, and pressurize at a temperature of 90°C To 2.8MPa, treat for 3 hours, return to normal pressure after completion, rinse with water to normal temperature;

[0033] The treatment agent includes the following raw materials in parts by weight: 12 parts of ammonium oxalate, 30 parts of β-chitosan, 6 parts of potassium carbonate, 1 part of guanidine nitrate, 22 parts of absolute ethanol, 40 parts of N,N-dimethylformamide parts, 600 parts of water;

[0034] (2) drying the bamboo treated in step (1) at a temperature of 85°C for 4 hours until the moisture content is lower than 10%;

[0035] (3) Immerse the dried bamboo in step (2) in the antifungal agent, keep it under the cond...

Embodiment 3

[0043] A processing method for prolonging the effective time of mildew-resistant bamboo, comprising the following contents:

[0044] (1) Dry the bamboo at a temperature of 105°C until the water content is 45%, stop drying, put the bamboo after the initial drying into a treatment agent with a mass concentration, and pressurize at a temperature of 85°C To 3.2MPa, treat for 2 hours, return to normal pressure after completion, rinse with water to normal temperature;

[0045] The treatment agent includes the following raw materials in parts by weight: 18 parts of ammonium oxalate, 20 parts of β-chitosan, 3 parts of potassium carbonate, 3 parts of guanidine nitrate, 18 parts of absolute ethanol, 30 parts of N,N-dimethylformamide parts, 500 parts of water;

[0046] (2) drying the bamboo treated in step (1) for 6 hours at a temperature of 75°C until the moisture content is lower than 10%;

[0047] (3) Immerse the dried bamboo in step (2) in the antifungal agent, keep it under the co...

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Abstract

The invention belongs to the technical field of mildew-proof treatment of bamboo materials and particularly relates to a treatment method for prolonging the effective time of mildew-proof bamboo materials. When the bamboo materials are dried under the condition that the temperature is 95-105 DEG C until the water content is 45-50%, drying is stopped, and the primarily dried bamboo materials are placed into a treating agent with the mass concentration to be subjected to pressurization treatment; the bamboo materials are dried for 4-6 hours under the condition that the temperature is 75-85 DEG Cuntil the water content is less than 10%; and the bamboo materials are immersed in a mildew-proof agent and maintained for 20-30 minutes under the condition that the vacuum degree is 0.08 MPa, and boards are taken out when normal pressure is recovered, washed for 30 seconds through flowing water, dried in the shade for 48 hours and then dried to the constant weight. Compared with the prior art, the treatment method has the following advantages that the phenomenon of twisting or cracking in the high-temperature drying process is avoided through the method, loss of the mildew-proof agent is reduced while the mildew-proof effect is guaranteed, and the effective time of the mildew-proof bamboo materials is prolonged.

Description

technical field [0001] The invention belongs to the technical field of anti-mold treatment of bamboo, and in particular relates to a treatment method for prolonging the effective time of anti-mold bamboo. Background technique [0002] Bamboo is a natural fast-growing material and an important forest resource. Bamboo has the characteristics of short growth cycle, high yield, high strength and renewable, and can be widely used in many fields such as construction, building materials, and home furnishing; my country is rich in bamboo resources, and rational development and utilization of bamboo can alleviate the shortage of domestic timber resources. High economic value and ecological value; especially in the application of building materials, bamboo structures have many advantages such as light weight, good toughness, small deformation and high strength, and can be made into trusses to solve the problem of large spans in buildings. The use of bamboo as a modern building material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52B27K9/00
CPCB27K3/52B27K9/002B27K2240/20
Inventor 李明李东猛
Owner ANHUI XINDA HOME FURNISHING CO LTD