Water-resistant high-viscosity wood adhesive

A wood adhesive, high-viscosity technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesives, etc., can solve the problems of weak viscosity and poor water resistance, and reduce the repulsion effect. , The effect of improving affinity and good compatibility

Pending Publication Date: 2020-05-01
广州国色生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a water-resistant high-viscosity wood adhesive for the problems of poor water resistance and weak viscosity of the commonly used wood adhesives at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The preparation method of composite water-resistant effect material comprises the following steps:

[0031] (1) Take the swim bladder and add 5% acetic acid solution in a mass ratio of 1:3~5, mix in a tissue grinder, mash and homogenize for 10-15 minutes to obtain a slurry, and take the slurry at 30-45°C According to the mass ratio of 12~16:1:0.3:1, add chitosan, plasticizer, and polyethylene wax to mix, keep stirring at 350~550r / min for 30~50min, evaporate under reduced pressure to 25~45% of the original volume, To obtain the concentrated material, take the concentrated material and add the pretreated montmorillonite and silicon acrylic emulsion in the mass ratio of 2~5:1:10~15, mix, and shear and disperse at 2000~4000r / min for 12~20min to obtain the dispersed material;

[0032](2) At 25~35°C, take trimethyloctadecylammonium chloride, hexadecyl hydroxypropyl sulfobetaine, Tween-80, n- Mix and stir butanol for 30-45 minutes, heat up to 50-65°C, add n-octane with 45-60%...

Embodiment 1

[0036] Plasticizer: Mix triethyl citrate and epoxidized soybean oil at a mass ratio of 5:3 to obtain a plasticizer.

[0037] Cross-linking agent: Mix 12% chromium acetate solution and divinylbenzene at a mass ratio of 10:1 to obtain a cross-linking agent.

[0038] Pretreatment of montmorillonite: Take montmorillonite and ghee at a mass ratio of 10:3 and grind them in a ball mill for 2 hours to obtain ball abrasives. Take the ball abrasives and add sulfuric acid solution with a mass fraction of 40%, mix and stir for 2 hours, filter, collect filter cakes and bake dry to obtain pretreated montmorillonite.

[0039] Polymerization inhibitor: Mix p-benzoquinone and p-hydroxyanisole at a mass ratio of 1:1 to obtain a polymerization inhibitor.

[0040] Initiator: Mix sodium persulfate and sodium bisulfite at a mass ratio of 2:1 to obtain the initiator.

[0041] Excipients: Magnesium stearate, hydroxyapatite and paraffin are mixed according to the mass ratio of 1:3:1 to obtain the ex...

Embodiment 2

[0049] Plasticizer: Mix triethyl citrate and epoxidized soybean oil at a mass ratio of 8:3 to obtain a plasticizer.

[0050] Cross-linking agent: Mix 12% chromium acetate solution and divinylbenzene at a mass ratio of 15:1 to obtain a cross-linking agent.

[0051] Pretreatment of montmorillonite: take montmorillonite and ghee at a mass ratio of 15:3 and grind them in a ball mill for 4 hours to obtain ball abrasives. Take the ball abrasives and add sulfuric acid solution with a mass fraction of 40%, mix and stir for 4 hours, filter, collect filter cakes and bake dry to obtain pretreated montmorillonite.

[0052] Polymerization inhibitor: Mix p-benzoquinone and p-hydroxyanisole at a mass ratio of 1:3 to obtain a polymerization inhibitor.

[0053] Initiator: Mix sodium persulfate and sodium bisulfite at a mass ratio of 5:1 to obtain the initiator.

[0054] Excipients: Magnesium stearate, hydroxyapatite and paraffin are mixed according to the mass ratio of 1:7:1 to obtain the ex...

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PUM

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Abstract

The invention discloses a water-resistant high-viscosity wood adhesive, and belongs to the field of adhesives. According to the invention, an acetic acid solution and swimming bladders are blended andmashed for dissolving out a part of colloid and protein; then chitosan, a plasticizer and macromolecules are mixed for interaction and preliminary shaping, wherein chitosan can react with swimming bladder protein, colloid and the like, so that the stability after gelatinization is improved, the water vapor transmission rate of the adhesive is reduced, plant oil-containing components and montmorillonite are ground and intercalated, hydrophobic and oily components are dispersed, and the water resistance of the adhesive is improved; according to the invention, cetyl alcohol polyoxyethylene ether, triethanolamine and the like are used as raw materials, micelle copolymerization synthesis is carried out, a hydrophobic monomer is used as an effective cross-linking center, stable hydrophobic association hydrogel is formed through induction, and the viscosity of the adhesive system is stabilized. The wood adhesive provided by the invention solves the problems of poor water resistance and weaker viscosity of the current common wood adhesive.

Description

technical field [0001] The invention belongs to the field of adhesives, in particular to a water-resistant high-viscosity wood adhesive. Background technique [0002] With the growth of population, economic development and urbanization, people's requirements for the living environment are increasing day by day. Among the four major materials (cement, steel, plastic and wood) in the world today, only wood is a renewable resource that can be recycled. At the same time, wood has good stability and aesthetics, making it popular in the architectural decoration industry. As the demand for timber has increased year by year in recent years, the vigorous promotion of natural forest protection policies has resulted in a serious shortage of domestic supply. Therefore, how to efficiently and rationally utilize timber resources has become the research focus of many forestry scholars. Years of production practice have shown that small-diameter wood, fast-growing wood, thinning wood and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/04C09J133/26C09J11/08C09J11/04C09J11/06C08F120/56
CPCC08F120/56C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J143/04C08L33/26C08L89/00C08L5/08C08L91/00C08L29/04C08L23/06C08K13/06C08K9/02C08K9/04C08K3/346C08K5/11C08K3/36
Inventor 刘沁
Owner 广州国色生物科技有限公司
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