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Mildew-proof bamboo plywood and preparation method thereof

A bamboo plywood, anti-mildew technology, applied in the direction of adhesives, mechanical equipment, manufacturing tools, etc., can solve the problems of reduced value, decay, moth-eaten, affecting use, etc.

Inactive Publication Date: 2021-08-31
湖南创威科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when bamboo plywood is stored and used in a warm and humid environment, it is easy to breed bacteria and cause mildew, even decay, and insects, resulting in a reduction in its value and affecting its use.

Method used

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  • Mildew-proof bamboo plywood and preparation method thereof
  • Mildew-proof bamboo plywood and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A process for preparing mold-type Plywood:

[0028] The transverse bamboo into bamboo section, milled to an outer vertical sectional holiday, then go to the milling section, added to the sodium hydroxide, thiourea, sodium sulfamate mass ratio of 5: 5: 1 complex concentration of 8% by mass after the aqueous solution was heated to 50 deg.] C cooking 60min, extracted with water to neutral, dried to a moisture content of 15%, obtained after 5 ease bamboo veneer, bamboo veneer is added to the adhesive immersion treatment 10min, remove and drain gum solution, which was dried to a moisture content of 8% or less by weight of the adhesive parts from the raw material composition: 60 parts of phenol resin, 30 parts of o-cresol formaldehyde epoxy resin, aqueous polyurethane emulsion of 30 parts, 10 parts nanoclays , 1 part of glyceryl tristearate, trimethyl hexamethylene diamine, 1 part of dibutyl sebacate, 1 part of 2 parts of modified halloysite nanotube load fungicide, 50 parts of p...

Embodiment 2

[0030] A process for preparing mold-type Plywood:

[0031] The transverse bamboo into bamboo section, milled to an outer vertical sectional holiday, then go to the milling section, added to the sodium hydroxide, thiourea, sodium sulfamate mass ratio of 6: 10: 1 complex concentration of 8% by mass after the aqueous solution was heated to 50 deg.] C cooking 50min, extracted with water to neutral, dried to a moisture content of 12%, 7 to give the ease of bamboo veneer, bamboo veneer is added to the adhesive immersion treatment 20min, remove and drain gum solution, which was dried to a moisture content of 8% or less by weight of the adhesive parts from the raw material composition: 50 parts of phenol resin, 20 parts of o-cresol-formaldehyde epoxy resin, aqueous polyurethane emulsion of 20 parts, 10 parts nanoclays , 2 parts of glyceryl tristearate, trimethyl hexamethylene diamine, 0.5 parts, 1 part of dibutyl sebacate, 2 parts of modified halloysite nanotube load fungicide, 50 parts o...

Embodiment 3

[0033] A process for preparing mold-type Plywood:

[0034]The transverse bamboo into bamboo section, milled to an outer vertical sectional holiday, then go to the milling section, added to the sodium hydroxide, thiourea, sodium sulfamate mass ratio 4: 5: 1 complex concentration of 8% by mass after the aqueous solution was heated to 50 deg.] C cooking 40min, extracted with water to neutral, dried to a moisture content of 10%, three times to give ease bamboo veneer, bamboo veneer is added to the adhesive immersion treatment 10min, remove and drain gum solution, which was dried to a moisture content of 5% or less by weight of the adhesive parts from the raw material composition: 50 parts of phenol resin, 20 parts of o-cresol-formaldehyde epoxy resin, aqueous polyurethane emulsion of 20 parts, 5 parts nanoclays , 1 part of glyceryl tristearate, 0.1 parts of trimethyl hexamethylene diamine, dibutyl sebacate, 1 part of 2 parts of modified halloysite nanotube load fungicide, 40 parts of ...

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Abstract

The invention relates to the field of building materials, in particular to a preparation method of a mildew-proof bamboo plywood. The preparation method comprises the following steps of adding bamboo veneers into an adhesive for dipping treatment for 10 minutes-20 minutes, taking out the bamboo veneers, draining glue liquid, pre-pressing for 1 minute-5 minutes after assembling blanks, heating to 130 DEG C-160 DEG C, carrying out hot pressing for 10 minutes-30 minutes under 10 MPa-15 MPa, reducing the pressure to 3 MPa-5 MPa, carrying out heat preservation and hot pressing for 5 minutes-10 minutes, opening a hot pressing plate, carrying out heat preservation for 5 minutes-10 minutes, and finally naturally recovering to room temperature. The bamboo plywood has good mechanical properties and mildew-proof effect, and through comparison, it can be seen that the treatment of the treating fluid and the addition of the modified halloysite nanotube loaded mildew-proof agent play a positive role in improving the strength of the bamboo plywood, and halloysite nanotube modification and mildew-proof agent loading treatment can improve the mildew-proof effect.

Description

Technical field [0001] The present invention relates to the field of construction materials, particularly to a mold Plywood type and preparation method. Background technique [0002] As a bamboo-rich forestry resources, it had been known as "the second forest." China is rich in bamboo resources, bamboo forest area of ​​4.8426 million hm 2 , And easy to cultivate, forest fast, three to five years will be cut, under certain scenarios instead of wood to use, with a wide range of applications. [0003] Plywood is a bamboo material as a main framework and the filler material, the building material by high pressure into the preform. Wide range of uses for the level of housing construction in the template, shear walls, vertical siding, viaducts, tunnels and subway beams pile template, also widely used in a variety of containers, boxes, cars and trains floor, home flooring, interior ceilings, doors, furniture and so on. However, bamboo preservation and use in warm, humid environment, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27K9/00B27K3/52B27K5/00B27K5/04B27J1/00C09J161/06C09J163/04C09J175/04C09J11/06B32B9/02B32B3/14B32B3/22B32B7/12B32B33/00
CPCB27D1/04B27J1/00B27K3/52B27K5/001B27K5/04B27K9/002B27K2240/20B32B3/14B32B3/18B32B7/12B32B9/02B32B33/00B32B2307/51B32B2307/546B32B2307/7145B32B2307/72C08K2003/387C09J11/06C09J161/06C08L63/04C08L75/04C08K9/12C08K3/38C08K5/47C08K5/205
Inventor 陈志高
Owner 湖南创威科技有限公司
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