Check patentability & draft patents in minutes with Patsnap Eureka AI!

Zero-formaldehyde flakeboard suitable for routing machining and preparation method of zero-formaldehyde flakeboard

A zero-formaldehyde and particleboard technology, applied in the field of zero-formaldehyde particleboard and its preparation, can solve problems such as poor internal bonding strength and waterproofness, and achieve the effect of increasing added value and superior mechanical properties

Inactive Publication Date: 2016-12-07
FUJIAN AGRI & FORESTRY UNIV
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unsaturated polyester and shavings directly mixed hot-pressed board, although it has good static bending strength and elastic modulus, but the internal bonding strength and water resistance are poor

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
  • Zero-formaldehyde flakeboard suitable for routing machining and preparation method of zero-formaldehyde flakeboard

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The specific steps of the preparation method of the zero-formaldehyde particleboard suitable for engraving and milling processing are as follows:

[0035] 1) Treat the shavings with a surface treatment agent;

[0036] 2) Dry the shavings treated in step 1) to a moisture content of 3-12%, sizing unsaturated polyester resin, initiator, accelerator, and then add water resistance agent;

[0037] 3) The shavings obtained in step 2) are formed into billets, and hot-pressed with a continuous hot press to obtain the zero-formaldehyde particleboard suitable for engraving and milling. The hot-pressing temperature is 160-220 °C and the pressure is 2.5-20 MPa, hot pressing time is 4-30min.

[0038] In order to make the content of the present invention easier to understand, the technical solutions of the present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited thereto.

Embodiment 1

[0040] 1) Treat 100 parts by weight of shavings with 1 part by weight of a surface treatment agent (prepared by mixing maleic anhydride and isocyanate at a volume ratio of 1:1);

[0041] 2) Dry the shavings treated in step 1) to a moisture content of 5%, spray 20 parts by weight of unsaturated polyester resin, 0.4 parts by weight of tert-butyl hydroperoxide, 0.2 parts by weight of cobalt cyclooctanoate, and then add 0.5 parts by weight part paraffin;

[0042] 3) The shavings obtained in step 2) were formed into billets, and hot-pressed for 7 minutes at 220 °C and 15 MPa with a continuous hot press to obtain a formaldehyde-free particle board with a thickness of 15 mm suitable for engraving and milling.

Embodiment 2

[0044] 1) Treat 100 parts by weight of shavings with 0.5 parts by weight of a surface treatment agent (prepared by mixing acetylacetone and acrylamide at a volume ratio of 3:1);

[0045]2) Dry the shavings treated in step 1) to a moisture content of 12%, spray 14 parts by weight of unsaturated polyester resin, 0.1 parts by weight of dicumyl peroxide, 0.01 parts by weight of cobalt cyclooctanoate, and then add 0.5 parts by weight of part paraffin;

[0046] 3) The shavings obtained in step 2) were formed into billets, and hot-pressed at 200 °C and 10 MPa for 4 minutes with a continuous hot press to obtain a formaldehyde-free particle board with a thickness of 12 mm and suitable for engraving and milling.

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 zero-formaldehyde flakeboard suitable for routing machining and a preparation method of the zero-formaldehyde flakeboard. The zero-formaldehyde flakeboard is prepared from, by weight, 100 parts of wood shavings, 8-25 parts of unsaturated polyester resin, 0.1-1.5 parts of an initiator, 0.01-0.5 part of an accelerant, 0.01-3 parts of a surface treating agent and 0.5-2 parts of a water-proofing agent. The surfaces of the wood shavings are treated, the unsaturated polyester resin is utilized as an adhesive, and therefore the produced flakeboard contains no formaldehyde, the problem of formaldehyde pollution in life space can be effectively solved, and a new solution way is provided for artificial board products for getting rid of formaldehyde release problems. The board is good in water resistance and high in mechanical property, the good routing machining performance is achieved, industrialization can be achieved without modifying an existing flakeboard production line, and the additional value of the flakeboard can be increased.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels, and in particular relates to a formaldehyde-free particle board suitable for engraving and milling and a preparation method thereof. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for indoor air quality. The sources of home decoration boards and furniture boards are mainly divided into three major boards, namely fiberboard, particleboard and plywood. They are made of wood (fiber, shavings or veneer) mixed with urea-formaldehyde glue, which will slowly release formaldehyde during use, causing indoor air pollution and affecting the health of residents. cancer. For more than one hundred years, people have tried to solve the problem of formaldehyde release from urea-formaldehyde products, but with little success. At the same time, because of its low cost, water and corrosion resistance, good strength, and simple process,...

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): B27N1/00B27N3/00B27N3/02B27N3/08
CPCB27N1/00B27N3/002B27N3/02B27N3/08
Inventor 李燃吴振增庄清平谢拥群杨文斌牛敏刘景宏
Owner FUJIAN AGRI & FORESTRY UNIV
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