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Preparation method of wood anti-mildew agent

A mildew inhibitor, wood technology, applied in the direction of wood treatment, wood impregnation, wood impregnation, etc., can solve the problems of human health hazards, toxic side effects, leakage of toxic residues, etc., to increase the anti-mold effect and improve the anti-mold effect. , the effect of increasing stability

Inactive Publication Date: 2017-12-29
常州市海若纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: the antifungal agent for industrial raw materials has a certain inhibitory effect on microorganisms, but its toxicity is strong, pollutes the environment, and often causes toxic residues to leak out during the use of the product, which has a certain degree of toxicity. Side effects, such as teratogenic, carcinogenic or mutagenic effects, have potential huge harm to human health. The invention provides a preparation method of a wood antifungal agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] A kind of preparation method of wood antifungal agent, this preparation method comprises the steps:

[0017] (1) According to the mass ratio of 7:4 to 6:5, put the cubeb, pepper and mulberry leaves into a frying pan, stir fry at 80-85°C for 15-20 minutes, collect the stir-fried mixture, and put Put the stir-fried mixture into a mill, mill at 500r / min for 20-30min, pass through a 200-mesh sieve, and collect the sieved particles;

[0018] (2) Put the sieved particles, 1.1mol / L ammonia water and cellulase into the enzymolysis tank according to the mass ratio of 3:5-7:1, and stir the enzymolysis at 34-42°C at 150r / min 4 ~6h, then put it into the steam explosion device, set the pressure at 11~14MPa, maintain the pressure for 1~3min, carry out steam explosion, and collect the explosives;

[0019] (3) Put the explosives into the extruder, extrude at 20MPa, collect the extruded liquid, and mix the extruded liquid with activated carbon at a mass ratio of 7:1 to 3, and let it st...

example 1

[0022] A kind of preparation method of wood antifungal agent, this preparation method comprises the steps:

[0023] (1) According to the mass ratio of 7:6:5, put the cubeb cubeb, pepper and mulberry leaves into a frying pan, stir-fry at 85°C for 20 minutes, collect the stir-fry mixture, put the stir-fry mixture into the mill In the mill, grind at 500r / min for 30min, pass through a 200-mesh sieve, and collect the sieved particles;

[0024] (2) According to the mass ratio of 3:7:1, put the sieved particles, 1.1mol / L ammonia water and cellulase into the enzymolysis tank, stir the enzymolysis at 150r / min at 42°C for 6h, and then put In the steam explosion device, set the pressure at 14MPa, maintain the pressure for 3 minutes, carry out steam explosion, and collect the explosives;

[0025] (3) Put the explosives into the extruder, extrude at 20MPa, collect the extruded liquid, and mix the extruded liquid with activated carbon at a mass ratio of 7:3, stand for decolorization for 25...

example 2

[0028] A kind of preparation method of wood antifungal agent, this preparation method comprises the steps:

[0029] (1) According to the mass ratio of 7:5:5, put the cubeb, pepper and mulberry leaves into a frying pan, stir-fry at 83°C for 18 minutes, collect the stir-fry mixture, put the stir-fry mixture into the mill In the mill, grind at 500r / min for 25min, pass through a 200-mesh sieve, and collect the sieved particles;

[0030] (2) According to the mass ratio of 3:6:1, put the sieved particles, 1.1mol / L ammonia water and cellulase into the enzymolysis tank, stir the enzymolysis at 150r / min at 35°C for 5h, and then put In the steam explosion device, set the pressure at 13MPa, maintain the pressure for 2 minutes, carry out steam explosion, and collect the explosives;

[0031] (3) Put the explosives into the extruder, extrude at 20MPa, collect the extruded liquid, and mix the extruded liquid with activated carbon at a mass ratio of 7:2, stand for decolorization for 20 minut...

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Abstract

The invention belongs to the field of wood additives, and in particular, relates to a preparation method of a wood anti-mildew agent. Natural substances are used as base stocks, and are extracted to obtain antibacterial beneficial substances and beneficial matters containing rich hydroxyl and amido; on the one hand, the natural substances can be effectively combined with woods to improve the anti-mildew effect; and on the other hand, when silver nitrate is used as a silver supplier to prepare nanosilver, amido and hydroxyl in extractives are used for acting with nanosilver to improve stability of nanosilver; through compounding, the anti-mildew effect is further improved; and the preparation method prevents environmental pollution, and improves the anti-mildew effect.

Description

technical field [0001] The invention belongs to the field of wood additives, and in particular relates to a preparation method of a wood antifungal agent. Background technique [0002] Wood is a natural polymer material with obvious biological characteristics. It is prone to mildew during use and affects the service life of wood products. Therefore, it is necessary to carry out anti-mildew treatment on the wood before use. The current treatment agents mostly use pure chemical agents, such as water-soluble alkyl ammonium compounds (AAC), ammonia-soluble quaternary ammonium copper (ACQ), borides, bis-dimethyl Copper dithiocarbamate (CDDC) and oil-soluble copper / zinc naphthenate, chlorothalonil (CTL), organic iodide (IPBC), etc., the production cost is too high, and although chemical raw material antifungal agents are harmful to microorganisms It has a certain inhibitory effect, but it is highly toxic and pollutes the environment. During the use of the product, it often causes...

Claims

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Application Information

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IPC IPC(8): B27K3/52
CPCB27K3/52B27K2240/20
Inventor 刘芳刘沁
Owner 常州市海若纺织品有限公司
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