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Drug-carrying polymer wood/bamboo modifier, and production and application methods thereof

A technology of drug-loaded polymer and modifier, applied in the direction of wood impregnation, wood treatment, impregnated wood, etc., can solve the problems of low horizontal grain tensile strength, lack of wood rays, etc., achieve low cost, no pollution to the environment, reduce Water and hygroscopic effects

Active Publication Date: 2016-06-01
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cross-grain tensile strength of wood is only 1 / 65-1 / 35 of the along-grain tensile strength, and the cross-grain tensile strength of bamboo is lower due to the lack of transverse wood rays.

Method used

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  • Drug-carrying polymer wood/bamboo modifier, and production and application methods thereof
  • Drug-carrying polymer wood/bamboo modifier, and production and application methods thereof
  • Drug-carrying polymer wood/bamboo modifier, and production and application methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 (contrasted with the corresponding raw material and weight ratio value of embodiment 1 in Table 1):

[0028] First, 25.0 parts of acrylic acid as a water-soluble monomer, 6.0 parts of polyethylene glycol as a water-soluble polymer, 0.45 parts of ammonium persulfate as a water-soluble initiator, and 0.2 parts of N, N'-submerged as a crosslinking agent Methylbisacrylamide and 0.15 parts of 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride were respectively dissolved in 57.6 mL of water; then 5.0 parts of tertiary ethylene carbonate as an oil-soluble monomer Esters, 0.2 parts of propiconazole as fungicide and 0.1 part of iodopropynyl butyl carbamate, 0.1 part of emamectin benzoate as insecticide were dissolved in 5.0 parts of butanol solution as organic solvent, and stirred until completely Dissolve, add 0.2 parts of nonylphenol polyoxyethylene ether and 0.4 parts of polyoxyethylene lauryl ether phosphate as surfactants, stir again until completely di...

Embodiment 2-8

[0030] All the other examples 2-8, all the raw materials of corresponding examples in the comparison table and the proportioning value by weight, and the method identical with embodiment 1 makes this size stabilization and antibacterial worm wood bamboo material modifier, all can reach described Technical effect, wherein preferred with embodiment 2,4 and 6.

[0031] Use the size stabilization, antibacterial and insect-proof modifiers prepared by the present invention to modify the wood and bamboo materials and their products that are more permeable, and can adopt the mode of spraying and coating. Atmospheric pressure impregnation and vacuum pressure impregnation are used for 0.5-1.0 hours, and then through curing and drying to complete the dimensional stabilization, antibacterial and insect repellent treatment of wood and bamboo.

[0032] The anti-shrinkage rate of the treated material of the present invention reaches more than 40.0%, and the moisture resistance rate reaches m...

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Abstract

The invention relates to a drug-carrying polymer wood / bamboo modifier which is prepared from the following raw materials in parts by weight: 0.5-5.0 parts of fungicide and pesticide, 0.0-30.0 parts of monomer, 0.0-15.0 parts of water-soluble polymer, 0.05-0.5 part of initiator, 0.1-0.5 part of crosslinking agent, 5.0-15.0 parts of organic solvent, 0.5-15.0 parts of surfactant and 60.0-100.0 parts of water. The preparation method of the modifier comprises the following steps: 1. mixing the water-soluble raw materials, adding the water, and dissolving; 2. mixing the oil-soluble raw materials, adding the fungicide and pesticide, stirring in an organic solvent until all the components are dissolved, adding the surfactant, and stirring until the surfactant is dissolved; and 3. mixing and stirring the two solutions prepared in the step 1 and step 2, thereby obtaining the modifier. The application method comprises the following steps: carrying out modification treatment on the wood / bamboo by spraying, coating, immersion or vacuum pressurization, draining, and curing at 60-100 DEG C for 1-4 hours. The wood / bamboo treated by the modifier has the advantages of high dimensional stability, and long and stable antimicrobial and pesticidal actions. The production technique is simple, and is low in cost and convenient to use.

Description

technical field [0001] The invention relates to a drug-loaded polymer with physical entanglement and chemical crosslinking constructed in situ inside wood and bamboo by means of dipping, spraying, coating, etc., and is mainly used to improve the dimensional stability, antibacterial and insect-proof properties of wood and bamboo. Background technique [0002] As a renewable natural polymer material, wood and bamboo are mainly composed of cellulose, hemicellulose and lignin, and also contain nutrients such as sugar and starch, so they are susceptible to decay, mildew and insects. . At present, the main method to solve this problem is to treat wood and bamboo with anti-corrosion, anti-mildew or insect repellent. However, the ever-expanding types and application fields of wood and bamboo products have put forward new requirements for the persistence of these protective agents, especially for outdoor materials. Outdoor materials will be affected by light, rain, sand and dust, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F220/56C08F220/54C08F218/08C08F220/28C08F220/14C08F218/00C08F222/38C08L33/02C08L71/08C08L33/26C08L29/04C08L35/02C08L5/08C08L33/14C08L39/06C08K5/3472C08K5/205C08K5/17C08K5/3445B27K3/52B27K9/00
CPCB27K3/52B27K9/002B27K2240/20C08F218/00C08F218/08C08F218/24C08F220/06C08F220/28C08F220/281C08F220/54C08F220/56C08F222/02C08K5/17C08K5/205C08K5/315C08K5/3445C08K5/3472C08L5/08C08L33/02C08L33/14C08L33/26C08L35/02C08L39/06C08L71/00C08F222/385C08L29/04C08F220/14C08F220/58C08L31/04C08K5/46C08L31/00
Inventor 孙芳利鲍滨福张艳陈安良于红卫杜春贵
Owner ZHEJIANG FORESTRY UNIVERSITY
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