Method for manufacturing recombined bamboo decorative veneers
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A manufacturing method and a technology of recombining bamboo, which are applied in the jointing of wooden veneers, manufacturing tools, and monocarboxylate copolymer adhesives, etc., can solve the problems of difficult planing, low moisture content, and high density of bamboo. question
Active Publication Date: 2014-06-25
ZHEJIANG SHENGHUA YUNFENG GREENEO
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Abstract
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Problems solved by technology
If it can be realized by slicing, the yield rate can be greatly improved. However, due to the low moisture content, high density and hard bamboo of bamboo, it must be treated with high temperature, humidification and softening before slicing.
However, since the phenolic resin adhesive is a water-resistant adhesive, it is difficult to perform high-temperature humidification and softening treatment, which makes it difficult to plan normally.
Method used
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Embodiment 1
[0020] Embodiment 1: get the bamboo bunch 12Kg that length is 60cm, through degreening and yellowing and loosening treatment, moderate carbonization, moisture content is dried to 12%, put into the plastic tank that adhesive is housed and impregnate. The formula of the adhesive is: urea-formaldehyde resin 30Kg, modified starch emulsion 20Kg, polyvinyl acetate emulsion 20Kg, organic acid solution 1.5Kg, isocyanate prepolymer 2.5Kg;
[0021] After soaking for 15 minutes, take out the bamboo bundles for a simple pressing process, squeeze out the excess adhesive, and then put them into an iron mold, apply high pressure to make it a bamboo square with a cross-sectional size of 15cm×15cm, and do a reinforcement treatment to make it bulky. In the same state, place it at room temperature for 6 days, let the adhesive fully cure, remove the formwork and get the recombined bamboo square. The thus obtained recombined bamboo square is planed and dried to obtain the required recombined bambo...
Embodiment 2
[0022] Embodiment 2: the adhesive formulation in embodiment 1 is changed as follows:
[0023] Urea-formaldehyde resin 30Kg, modified starch emulsion 10Kg, polyvinyl acetate emulsion 30Kg, organic acid solution 1.5Kg, isocyanate prepolymer 3.0Kg. The rest remain unchanged, that is, the recombined bamboo decorative veneer is obtained.
Embodiment 3
[0024] Embodiment 3: the adhesive formulation in embodiment 1 is changed as follows:
[0025] Urea-formaldehyde resin 30Kg, modified starch emulsion 30Kg, polyvinyl acetate emulsion 30Kg, organic acid solution 1.5Kg, isocyanate prepolymer 4.0Kg. The rest remain unchanged, that is, the recombined bamboo decorative veneer is obtained.
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Abstract
The invention discloses a method for manufacturing recombined bamboo decorative veneers. Urea resin, a modified starch emulsion and a polyvinyl acetate emulsion are mixed, a corresponding curing agent and a corresponding reinforcing agent are added, and an adhesive for soaking bamboo bundles is obtained; the bamboo bundles soaked with the adhesive can be directly die-pressed without being dried, and is solidified in a normal temperature state so as to manufacture recombined bamboo. The water content of the recombined bamboo can reach about 30% generally, and can be directly sliced so as to obtain the recombined bamboo decorative veneers meeting quality requirements. According to the method, the modified starch emulsion and the polyvinyl acetate emulsion are added to the adhesive so that humidifying and softening can be conducted, and the recombined bamboo decorative veneers meeting the requirements are manufactured. The modified starch emulsion is added to achieve the purpose that cost of the adhesive can be lowered, the recombined bamboo decorative veneers have higher competitiveness, and good economic benefits are obtained.
Description
technical field [0001] The invention relates to the technical field of making decorative veneers from bamboo, in particular to a method for making decorative veneers by reorganizing bamboo and then slicing. Background technique [0002] my country is a country with large bamboo resources in the world. In recent years, my country's bamboo resources have been well developed and utilized. In order to solve the practical problems of low utilization rate of bamboo resources and difficult development of high value-added products, experts in the bamboo industry have made continuous technological innovations. Many new products have been developed, and recombinant bamboo is also a new product developed under this background. Such as recombined bamboo flooring, decorative materials, etc., are made by sawing recombined bamboo squares, and industrial production has been realized at present. [0003] Recombined bamboo is a new bamboo material that reorganizes and strengthens bamboo bundl...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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