Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for manufacturing medium-density fiberboard in inorganic gluing

A manufacturing method and medium-density technology, applied in the field of fiberboard manufacturing, to achieve the effects of overcoming high elastic modulus, shortening production cycle, and improving equipment utilization

Inactive Publication Date: 2013-02-13
HUBEI ZHONGBAI TECH
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing magnesium cement glued plant fiber-based panels are mainly particle boards, wood particle boards, and wood wool boards. The medium density fiberboards are still under research and development, and the magnesium cement used is limited to magnesium oxychloride cement and magnesium oxysulfide cement.

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

Embodiment Construction

[0023] The purpose of the present invention is achieved by the following specific technical measures:

[0024] A, fiber treatment: boil the plant fiber (preferably cotton stalk fiber) with water or dilute alkaline aqueous solution for 4-6 hours;

[0025] B. Cement compound preparation: Mix 100 kg of magnesium oxide, 50 kg of magnesium sulfate heptahydrate, 60 kg of pozzolanic mixed material (or volcanic ash), and 2 kg of calcium sulfate (or ferrous sulfate) to make magnesium sulfoaluminate cement compound;

[0026] C. Mixing: Mix the magnesium sulfoaluminate cement rubber and the treated plant fiber evenly to make a semi-dry mixture;

[0027] D. Pressure penetration: Roll the mixture with a pair of rollers with the vertical feeding line as the horizontal direction, so that the magnesium sulfoaluminate cement glue penetrates into the fiber, and the magnesium sulfoaluminate cement glue is infiltrated into the fiber. mixture of materials;

[0028] E. Rolling: Roll the mixture w...

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
densityaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for manufacturing a medium-density fiberboard in inorganic gluing. The method comprises the following steps of: A, performing fiber treatment; B, preparing cement size; C, mixing, D, performing pressure penetration; E, laminating; and F, hot-pressing and demolding. The fiberboard has the characteristics of fire resistance, water resistance, ageing resistance, mildew prevention and no formaldehyde and belongs to a green environment-friendly product.

Description

technical field [0001] The invention relates to the field of methods for the manufacture of fibreboards. technical background [0002] At present, the existing medium density fiberboard is produced by using urea-formaldehyde resin and phenolic resin as adhesives. Since urea-formaldehyde resin and phenolic resin contain formaldehyde and pollute the environment, since 2008 in California, the medium density fiberboard glued with urea-formaldehyde resin and phenolic resin has been gradually banned. MDF glued with formaldehyde-free isocyanate resin (MDI) is expensive and has poor fire performance. [0003] The existing inorganic glued plant fiber-based panels utilize the strong composite ability of magnesium cement and plant fibers. In 1908, the Austrian inventor S.Robert proposed "Process to manufacture a firepoof, light, porous material" (fireproof lightweight porous material) Production process)" patent application, obtained the Austrian patent (NO.37223) in 1909, and began...

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): B27N3/04B27N3/08C04B28/30C04B16/02
Inventor 陈学鲜谌萌席凯原
Owner HUBEI ZHONGBAI TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com