Bamboo and wood composite container bottom plate manufactured by one-step hot pressing and having high elastic modulus and manufacture method thereof

A container floor, bamboo and wood composite technology, applied in the direction of lamination devices, manufacturing tools, wood layered products, etc., can solve the problems of high labor costs, energy consumption, materials and labor, and low elastic modulus of the floor for bamboo mats. To achieve the effect of long continuous use, short cycle and fast growth

Active Publication Date: 2012-10-10
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first type needs to impregnate paper and bamboo mats in order to obtain a beautiful appearance. Bamboo mats require more labor costs, and the elastic modulus of the bottom plate is not high; the latter type can also achieve the required mechanical properties and acceptable appearance. , but because it is secondary molding, it needs to be sanded and glued on the surface to be glued, and then subjected to secondary hot pressing and compounding, which consumes more energy, materials and labor

Method used

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  • Bamboo and wood composite container bottom plate manufactured by one-step hot pressing and having high elastic modulus and manufacture method thereof
  • Bamboo and wood composite container bottom plate manufactured by one-step hot pressing and having high elastic modulus and manufacture method thereof
  • Bamboo and wood composite container bottom plate manufactured by one-step hot pressing and having high elastic modulus and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The structure of the bamboo-wood composite container floor is as follows: figure 1 ,

[0020] The manufacturing method of the bamboo-wood composite container bottom plate is as follows:

[0021] a. Sorting and finishing of wooden veneers and bamboo curtains, the moisture content of wooden veneers is ≤10%, according to the required double-sided glue coating, the glue amount is 250-350g / m 2 , aging or low-temperature drying; and dry the vertical texture thin bamboo curtain 1 and the vertical texture bamboo curtain 2 to a moisture content below 12%, and dry it at a low temperature to a moisture content below 18% after impregnating phenolic glue (or melamine glue). Add 2.4 grams of insecticide to 1 kilogram of glue (solid content 45%);

[0022] b. Particleboard core board for structure, the thickness of the particleboard substrate for structure is sanded to 20-22mm, and then used as the core board;

[0023] C. Blank assembly, from outside to inside: 1 layer of thin bambo...

Embodiment 2

[0030] The structure of the bamboo-wood composite container floor is as follows: figure 2 ,

[0031] The manufacturing method of the bamboo-wood composite container bottom plate is as follows:

[0032] a. Sorting and finishing of wooden veneers and bamboo curtains. The moisture content of wooden veneers is ≤8%. Glue is applied on both sides according to the requirements, and the amount of glue applied is 250-350g / m 2 , aging or low-temperature drying; and dry the vertical texture thin bamboo curtain 1 and the vertical texture bamboo curtain 2 to a moisture content below 15%, and dry it to a moisture content below 20% after impregnating phenolic glue (or other weather-resistant glue). Add 2.4 grams of insecticides to 1 kilogram of glue (solid content 45%);

[0033]b. Blank assembly, from the outside to the inside: 1 layer of thin bamboo curtain with longitudinal texture impregnated with phenolic glue and dried at low temperature 1, 3 to 4 layers of bamboo impregnated with ph...

Embodiment 3

[0040] The structure of the bamboo-wood composite container floor is as follows: image 3 ,

[0041] The manufacturing method of the bamboo-wood composite container bottom plate is as follows:

[0042] a. Sorting and finishing of wooden veneers and bamboo curtains. The moisture content of wooden veneers is ≤8%. Glue is applied on both sides according to the requirements, and the amount of glue applied is 250-350g / m 2 , aging or low-temperature drying; and drying the vertical texture bamboo curtain 2, the horizontal texture bamboo curtain 6 and the longitudinal texture bamboo curtain 7 to a moisture content below 12%, and drying at a low temperature to a moisture content of 20% by impregnating phenolic glue (or melamine glue) Below, add the insecticide of 2.4 grams by 1 kilogram of glue (solid content 45%) in glue;

[0043] b. Blank assembly, from the outside to the inside: 3 to 5 layers of phenolic glue impregnated and dried at low temperature with a thickness of 1.0 to 1.5m...

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Abstract

The invention is a bamboo and wood composite container bottom plate manufactured by one-step hot pressing and having high elastic modulus and a manufacture method thereof. The structure of the plate is that materials for an upper surface and a lower surface are respectively 3-5 layers of thin bamboo curtains dipped with phenolic glue or melamine glue; an inner layer is a layer of transverse veneer and still inner layers are structural particleboards; or inner layers are all wood veneers; or the longitudinal and transverse wood veneers are replaced by a partial of bamboo curtains; and the number of layers and the fiber direction of the wood veneers or the bamboo curtains are determined by structural principles of wood container bottom plates. The plate has advantages in that by utilizing the outermost layers of bamboo curtain surfaces which are pressed densely and have a high elastic modulus, the elastic modulus of the bottom plate is increased greatly and the energy consumption is small. In addition, the surface bamboo curtains are characterized by low absorbent expansion rate, high hardness and good wear-resistance. Raw material sources of the bottom plate are widened. The finished composite container bottom plate has stable quality, and the performance indexes of the bottom plate, such as strength, elasticity modulus, etc., measure up to the technical requirements of the international container industry.

Description

technical field [0001] The invention relates to a bamboo-wood composite container floor with a high elastic modulus formed by one-time hot pressing with multi-layer bamboo curtains as the surface layer and a manufacturing method thereof, which belongs to the technical field of wood-based panel manufacturing in the wood industry. Background technique [0002] The main load-bearing area of ​​a container is the bottom plate. The container manufacturing industry requires the bottom plate to have high mechanical properties, appearance quality, impact resistance and aging resistance. The existing bamboo-wood composite container floor has two forms: the surface layer of patent ZL 98111153.x is a kind of bamboo-wood composite container floor with impregnated paper and bamboo mat, and the surface layer of another patent ZL 03152841.4 is formed by high-pressure hot pressing A thin layer of high-density bamboo is used as the surface and back layer, and then combined with structural par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27D1/08B32B21/13B32B37/06B32B37/12B32B37/14
Inventor 许斌罗伯特・威尔伍德张齐生陈立衡蒋身学
Owner NANJING FORESTRY UNIV
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