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Impact-resistant bamboo bundle-rubber composite board as well as preparation method and application thereof

A composite board and impact-resistant technology, which is applied in the direction of chemical instruments and methods, manufacturing tools, wood layered products, etc., can solve the problems of limited application range, poor impact resistance and damping internal friction performance, and complicated installation process, so as to achieve improvement Safety and comfort, improved impact resistance, high strength and rigidity

Active Publication Date: 2021-05-25
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for some special scenes such as operating rooms, gymnasiums, and car floorboards that require high impact resistance and energy absorption and vibration reduction, bamboo bundle veneer lumber has low internal friction absorption of impact energy and vibration energy, and poor impact resistance. , cannot play an effective damping and damping effect, and is prone to problems of excess strength, high density, and high quality, which limit its application range
[0003] At present, there are the following disadvantages in the bamboo board and its use: 1) high density and heavy weight; 2) single performance, high hardness, poor impact resistance and damping internal friction; 3) low comfort, etc.; 4 ) When used in some vibration-sensitive environments, additional shock absorbers or damping plates are required. The installation process is complicated, the cost is high, and regular maintenance is required

Method used

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  • Impact-resistant bamboo bundle-rubber composite board as well as preparation method and application thereof
  • Impact-resistant bamboo bundle-rubber composite board as well as preparation method and application thereof
  • Impact-resistant bamboo bundle-rubber composite board as well as preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0042] The present invention provides the preparation method of impact-resistant bamboo beam-rubber composite plate described in above-mentioned technical scheme, comprises the following steps:

[0043] Apply adhesive on the upper and lower surfaces of the rubber veneer, and adopt the method of symmetrical lamination to form the blank, with the bamboo veneer as the surface layer, the wooden veneer as the middle layer, and the rubber veneer as the core layer, pave the obtained slab Hot pressing is carried out to obtain an impact-resistant bamboo bundle-rubber composite board.

[0044] In the present invention, the adhesive is coated on the upper and lower surfaces of the rubber veneer. In the present invention, the adhesive is preferably a one-component isocyanate adhesive, and in an embodiment of the present invention, the model of the one-component isocyanate adhesive is WANNATECW20; the double-sided sizing amount of the adhesive is preferably 30-50g / m 2 , more preferably ...

Embodiment 1

[0056] Cut the original bamboo into long bamboo sections of equal length, divide the bamboo section into four pieces, remove the bamboo partition, select the outer layer of the bamboo tube, and process it into green side bamboo strips with regular cross-sections by using a splitting machine;

[0057] Utilize bamboo material broomification rolling equipment to carry out broomification and loosen 6 times to described green side bamboo strip, form the bamboo bundle fiber unit;

[0058] Immerse the bamboo bundle fiber unit in an aqueous NaOH solution with a mass concentration of 15% for 3 hours, take it out and wash it until neutral, then dry it, and control the moisture content to 10%, to obtain a bamboo bundle unit;

[0059] Adopt braiding machine to carry out integral weaving of described bamboo bundle unit, obtain bamboo bundle veneer (thickness is 4mm);

[0060] Immerse the bamboo bundle veneer in a thermosetting phenolic resin solution with a solid content of 25% for 10 minu...

Embodiment 2

[0065] Prepare bamboo beam veneer (thickness is 4mm) according to the method for embodiment 1;

[0066] Immerse the bamboo bundle veneer in a thermosetting phenolic resin solution with a solid content of 25% for 10 minutes, take it out and drain it, and then expose it to sunlight until the water content is 10%, and set aside, the amount of gluing is 20% (mass content), Get the treated bamboo bundle veneer;

[0067]Immerse the poplar veneer (thickness 2mm) in a thermosetting phenolic resin solution with a solid content of 25% for 10 minutes, take it out and drain it, and expose it to sunlight until the water content is 10%. content), to obtain the treated wood veneer;

[0068] according to figure 2 In the method shown in middle a, two layers of above-mentioned treated bamboo veneers and two layers of treated poplar veneers are respectively assembled into blanks, and the paved slabs are sent into a multi-layer hot press to control the slabs. Thickness is 6mm, hot-pressing co...

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Abstract

The invention provides an impact-resistant bamboo bundle-rubber composite board as well as a preparation method and application thereof, and belongs to the technical field of artificial boards. A bamboo bundle veneer serves as a surface layer, a rubber veneer serves as a core layer, the performance advantages of the bamboo bundle veneer and the rubber veneer can be brought into full play, the functional strength requirement is met, meanwhile, safety and comfort are improved, the impact resistance of the artificial board is effectively improved, installation of additional damping facilities is omitted, the assembly efficiency is improved, and the installation cost is reduced; and the wood veneer is used as a middle layer of the bamboo bundle veneer and the rubber veneer, the effect of glue joint transition can be achieved, the glue joint strength of the composite board can be effectively improved, the interface bonding problem of the bamboo bundle veneer and the rubber veneer is solved, and meanwhile the lightweight design of the board is achieved.

Description

technical field [0001] The invention relates to the technical field of artificial panels, in particular to an impact-resistant bamboo bundle-rubber composite panel and its preparation method and application. Background technique [0002] As a sustainable green resource, bamboo has the characteristics of short growth cycle, high specific strength and specific stiffness, and easy cutting and processing. In addition, my country's bamboo resources are rich in types and reserves, and it is the preferred material for manufacturing wood-based panels and structural materials. Bamboo bundle laminated veneer lumber is a new bamboo material that reorganizes and strengthens bamboo. The physical and mechanical properties of the board are excellent and evenly distributed. It is widely used in outdoor floors, container floors, etc. However, for some special scenes such as operating rooms, gymnasiums, and car floorboards that require high impact resistance and energy absorption and vibratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/00B27D1/08B27K3/04B32B21/04B32B37/06B32B37/10
CPCB27D1/00B27D1/08B32B21/045B32B37/10B32B37/06B27K3/04
Inventor 李海栋翟飞飞张运兴刘龙陈复明王戈马晓宇
Owner HENAN POLYTECHNIC UNIV
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