Supercharge Your Innovation With Domain-Expert AI Agents!

Method for manufacturing dipping and gluing straw flakeboards

A manufacturing method and technology of particleboard, applied in the direction of manufacturing tools, adhesives, flat products, etc., can solve the problems of high manufacturing cost, poor performance of straw particleboard, high cost of straw particleboard, reduce production cost, increase bonding strength, and improve bonding strength. effect of effect

Inactive Publication Date: 2011-07-06
NORTHEAST FORESTRY UNIVERSITY
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the conventional urea-formaldehyde resin glue and phenolic resin glue are used and the straw particleboard manufactured by spraying glue has poor performance, or a large amount of adhesive must be applied to meet the standard requirements, resulting in high manufacturing costs, and The use of isocyanate adhesives to manufacture straw particleboard also has the problem of high cost, and a method for manufacturing straw particleboard with dipping and sizing is provided

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

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0008] Specific embodiment 1: The manufacturing method of impregnated sizing straw particleboard in this embodiment is carried out in the following steps: 1. Spray the phenolic adhesive or glue coupling agent mixed solution evenly on the straw scraps until it is completely wetted, and then cover at room temperature Place it for 2h, then put it in an oven, dry it at 55~85℃ to a moisture content of 10%~14%, and then pave it in a mold to form a slab; 2. Cover the upper and lower surfaces of the slab with one The steel plate is stretched, and then pre-compressed under a pressure of 1~3MPa for 10~20min; 3. After pre-compression, a cushion block is placed between the upper and lower steel plates of the slab, and then placed in a hot press, and pressurized to 1.5~3MPa, hold for 9~12min and release the pressure to obtain the impregnated sizing straw particleboard; the phenolic adhesive in step 1 is the phenolic glue with solid content of 45%~50% diluted with 5 times of water; step 1 med...

specific Embodiment approach 2

[0016] Specific embodiment two: this embodiment is different from specific embodiment one in that in step one, it is dried at 60-80° C. to a moisture content of 11%-13%. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Specific embodiment three: This embodiment is different from specific embodiment one in that in step one, it is dried at 70° C. to a moisture content of 12%. Other steps and parameters are the same as in the first embodiment.

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

PropertyMeasurementUnit
densityaaaaaaaaaa
flexural strengthaaaaaaaaaa
elastic modulusaaaaaaaaaa
Login to View More

Abstract

A method for manufacturing dipping and gluing straw flakeboards relates to the method for manufacturing straw flakeboards. The method solves the problems that existing straw flakeboards which are manufactured through adopting conventional urea-formaldehyde resin adhesive and phenolic-resin adhesive and adopting the mode of spraying adhesive have poor performances, or can reach the standard requirements just through applying a great deal of adhesive, thereby the manufacturing cost is high, or the straw flakeboards which are manufactured through adopting isocyanate adhesive also have high cost.The method comprises that firstly, spraying mixing solution of the phenolic-resin adhesive or adhesive resin acceptor on straw crushed aggregates until the straw crushed aggregates are completely soaked, placing and drying the crushed aggregates, and flatly paving the crushed aggregates into plate blanks, secondly, covering steel plates by the plate blanks and pre-pressing the steel plates, thirdly, a cushion block is arranged on the edge between the upper and the lower steel plates of the plate blank after pre-pressing, the pressure is released after thermal pressing, and the dipping and gluing straw flakeboard is obtained. The moistening performance of the surface is improved after dipping the surface of the straw in the method, the performances of the flakebaords are good, and the manufacturing cost is reduced.

Description

Technical field [0001] The invention relates to a method for manufacturing a straw particle board. Background technique [0002] my country is a large agricultural country. The amount of crop straw produced every year is about 700 million tons, of which corn, sorghum, cotton and other straws amount to about 200 million tons, wheat straw and rice straw are about 400 million tons, and the total amount available for collection is 600 million tons. t above. my country’s straw utilization rate is low, and a large amount of straw is burned, which pollutes the environment and wastes valuable renewable resources. If 5% of the total amount of rice straw and wheat straw is used, about 20 million square meters can be produced. 3 Wood-based panels can replace 60 million m 3 Wood is equivalent to the total output of my country’s particleboard, medium-density fiberboard and blockboard in 2003. If straw can be used to replace wood to produce particleboard, it will not only meet the needs of the ...

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 Patents(China)
IPC IPC(8): B27N3/02B27N1/02B27N3/08B27N3/10C09J161/06C09J11/06
Inventor 王伟宏碁超张显权王海刚
Owner NORTHEAST FORESTRY UNIVERSITY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com