Method for using thin-wall bamboo materials to prepare bamboo scrimbers

A technology for reconstituting bamboo and bamboo materials, which is applied in the direction of wood compression, impregnation of wood, and manufacturing tools, etc., can solve the problems of unsatisfactory degree of destruction of bamboo green and bamboo yellow on the surface, poor uniformity of dispersing, etc., to ensure the depth and uniformity of penetration, and reduce the amount of consumption. , the effect of reducing production costs

Pending Publication Date: 2018-06-08
GUANGDONG ACAD OF FORESTRY
View PDF8 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings and deficiencies in the prior art that the uniformity of thin-walled bamboo is poor, and the damage degree of bamboo green and bamboo yellow on the surface is not ideal, the purpose of the present invention is to provide a method for preparing bamboo recombined wood from thin-walled bamboo

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for using thin-wall bamboo materials to prepare bamboo scrimbers
  • Method for using thin-wall bamboo materials to prepare bamboo scrimbers
  • Method for using thin-wall bamboo materials to prepare bamboo scrimbers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Select the green bamboo slices, use the mass concentration of 3% NaOH to process the green bamboo slices, the treatment temperature is 85 ° C, the treatment time is 1h, then rinse with water, then add 30IU / g lipase for 4h, add the treated bamboo slices In the deflagging machine, decompose until the water absorption rate of the bamboo bundles is 80%; the sizing process is to use the glue solution with a solid content of 20% diluted with the NaOH treatment waste liquid after cooking to carry out pre-vacuum-0.06MPa for the selected material for 10min , pressurization pressure 1.0MPa, pressurization 10min, vacuum -0.06MPa, time 5min; the conditions for hot pressing after paving are temperature 140 ℃, pressure 23MPa.

[0034] Adopt the existing debonding process (refer to the preparation process of the literature "The influence of decompression times on the properties of bamboo fiber composites [J]. Timber Industry, 2011, 25 (5), 1-4" for conventional decompression) and conve...

Embodiment 2

[0038] Select bamboo slices with a thickness of 3-5 mm at the tip of the bamboo, and treat the bamboo slices with a mass concentration of 4% NaOH at a temperature of 80 ° C for 1 hour, then rinse with water, and then add 40 IU / g lipase to treat them for 3 hours , the treated bamboo chips are added to the debulking machine, and the water absorption rate of the bamboo bundles is decomposed to 120%; Pre-vacuum-0.06MPa, treatment for 10min, pressurization pressure 0.8MPa, pressurization 8min, post-vacuum-0.06MPa, time 10min; the conditions for hot pressing after paving are temperature 130°C and pressure 20MPa.

[0039] See Table 2 for the comparison between the performance of the recombined bamboo bamboo prepared by the existing decompression process and the conventional rubber dipping and paving process and the performance of the process of the present invention.

[0040] Table 2 adopts original technology and the performance comparison of the hemp bamboo recombined bamboo prepar...

Embodiment 3

[0043]Select Fendanzhu bamboo slices, process Fendanzhu bamboo slices with a mass concentration of 2% NaOH at a treatment temperature of 95°C for 0.5h, then rinse with water, add 50IU / g lipase for 2h, and treat the treated Bamboo slices are added into the deflagging machine, and the water absorption rate of the bamboo bundles is 105%; the sizing process is to use the glue with a solid content of 20% diluted with NaOH treatment waste liquid after cooking to carry out pre-vacuum-0.06MPa on the selected materials. , treatment for 10 minutes, pressurization pressure 1.2MPa, pressurization 5min, vacuum -0.06MPa, time 8min; the conditions for hot pressing after paving are temperature 140°C and pressure 25MPa.

[0044] See Table 3 for the comparison between the properties of the powdered single bamboo reconstituted bamboo prepared by the existing delamination process and the conventional dipping and paving process and the performance of this technology.

[0045] Table 3 adopts origin...

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
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for using thin-wall bamboo materials to prepare bamboo scrimbers. The method includes the steps that alkali is adopted for stewing thin-wall bamboo sheets, and then defibering, gum dipping, laying and hot pressing are carried out in sequence; NaOH is used for stewing the bamboo sheets, and the bamboo sheets are processed by lipase and then subjected to defibering,wherein by means of the procedures above, the defibering effect of bamboo bundles is obviously improved by 35% or above, bamboo green and tabasheer on the surfaces of the bamboo materials are effectively subjected to chemical erosion, the purpose of breaking wax layers and silicon layers is achieved, and the effect of improving gluing is achieved. A waste liquid generated after stewing is used fordiluting a glum liquid, and the problem of discharging the waste liquid is solved; by adopting a vacuum pressurizing dipping mode, even permeation of an adhesive in the bamboo materials is achieved,consumption of the adhesive is reduced, the production cost is reduced, efficient utilization of the thin-wall bamboo materials is achieved, and the environment is protected. The physical and chemicalstrength of the scrimbers are obviously improved, the horizontal shearing strength is improved by 25% or above, the thickness swelling rate of water absorption is reduced by 100% or above, the bending strength is improved by 20% or above, and the elasticity modulus is increased by 15% or above.

Description

technical field [0001] The invention relates to the field of wood-based panels, in particular to recombined bamboo, and more specifically to a method for preparing bamboo recombined wood from thin-walled bamboo. Background technique [0002] In recent years, my country's bamboo industry has developed rapidly, especially the research and development of recombinant bamboo products, which has played a major role in promoting the development of bamboo industry. Recombined bamboo is processed by rolling and decompressing equipment into a network of bamboo bundles that are not broken in the horizontal direction, loose in the vertical direction and interlaced without disturbing the arrangement direction of the bamboo fibers and retaining the basic characteristics of the bamboo, and then dried, sizing and A new type of wood-based panel with high strength, large format size, and natural bamboo texture structure made by hot pressing (or cold pressing) and other recombination processes...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B27J7/00B27K3/00B27K9/00B27M1/02B27M1/08
CPCB27J7/00B27K3/002B27K9/002B27M1/02B27M1/08
Inventor 马红霞李兴伟曹永建王剑菁谢桂军陈利芳何雪香
Owner GUANGDONG ACAD OF FORESTRY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap