A kind of flame retardant modification treatment method of Chinese fir

A processing method and technology for fir, which can be applied in wood treatment, wood treatment details, wood impregnation, etc., can solve problems such as poor resistance to flame retardant loss, achieve good flatness, small texture differences, and facilitate mass production.

Active Publication Date: 2021-01-19
福建省顺昌县升升木业有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings of Chinese fir that is easy to burn and the existing Chinese fir flame-retardant treatment method that has poor resistance to loss of flame retardants, the invention provides a Chinese fir flame-retardant modification treatment method

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
  • A kind of flame retardant modification treatment method of Chinese fir

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017](1) Under the protection of nitrogen, spray the cedar sample uniformly with 5% by weight N,N-dimethylformamide solution of 4,4'-diphenylmethane diisocyanate, and the spray pressure is 0.3MPa , The spraying time is 6s; the sprayed cedar sample is placed in a nitrogen atmosphere for 4h at room temperature, and then vacuum dried at 60℃ for 24h to obtain a modified cedar sample;

[0018](2) Under the protection of nitrogen, use 10% by weight of the dioxane solution of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to evenly spray a modification treatment For the Chinese fir sample, the spray pressure is 0.3MPa, and the spray time is 8s; the sprayed Chinese fir sample is allowed to stand for 6h at room temperature, and then vacuum dried at 60℃ for 24h to obtain the secondary modified Chinese fir sample ;

[0019](3) Use 10% by weight water-soluble phenolic resin aqueous solution to uniformly spray the second modified cedar sample, the spray pressure is 0.4MPa, and the spray time is 4...

Embodiment 2

[0021](1) Under the protection of nitrogen, spray the cedar sample uniformly with 8% by weight N,N-dimethylformamide solution of 4,4'-diphenylmethane diisocyanate, the spray pressure is 0.4MPa , The spraying time is 5s; the sprayed cedar sample is placed in a nitrogen atmosphere for 6h at room temperature, and then vacuum dried at 60℃ for 24h to obtain a modified cedar sample;

[0022](2) Under the protection of nitrogen, use 13% by weight of the dioxane solution of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to evenly spray a modification treatment For the Chinese fir sample, the spray pressure is 0.4MPa, and the spray time is 6s; the sprayed Chinese fir sample is allowed to stand for 9h at room temperature, and then vacuum-dried at 60℃ for 24h to obtain the secondary modified Chinese fir sample ;

[0023](3) Use 15% by weight water-soluble phenolic resin aqueous solution to evenly spray the secondary modified cedar sample, the spray pressure is 0.5MPa, and the spray time is 3s; a...

Embodiment 3

[0025](1) Under the protection of nitrogen, spray the cedar sample uniformly with 10% by weight N,N-dimethylformamide solution of 4,4'-diphenylmethane diisocyanate, the spray pressure is 0.5MPa , The spraying time is 3s; the sprayed cedar sample is placed in a nitrogen atmosphere for 8h at room temperature, and then vacuum dried at 60℃ for 24h to obtain a modified cedar sample;

[0026](2) Under the protection of nitrogen, use 15% by weight of the dioxane solution of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to evenly spray a modification treatment For the Chinese fir sample, the spray pressure is 0.5MPa, and the spray time is 4s; the sprayed Chinese fir sample is allowed to stand for 12h at room temperature, and then vacuum dried at 60℃ for 24h to obtain the secondary modified Chinese fir sample ;

[0027](3) Spray the second modified cedar sample uniformly with 20% by weight water-soluble phenolic resin aqueous solution, the spray pressure is 0.6MPa, and the spray time is 2s; a...

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 cunninghamia lanceolata flame-retardant modification treatment method, and belongs to the technical field of wood flame-retardant treatment. The flame-retardant modificationtreatment method comprises the following steps: carrying out primary spray modification treatment on cunninghamia lanceolata by using a 4, 4 '-diphenylmethane diisocyanate solution, carrying out secondary spray modification treatment on the cunninghamia lanceolata by using a 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide solution, and finally carrying out tertiary spray modification treatmenton the cunninghamia lanceolata by using a phenolic resin solution. The flame-retardant modification treatment method provided by the invention not only can significantly improve the flame retardancy,flame-retardant stability and dimensional stability of fir, but also is simple and easy to operate, and is convenient for realizing industrial mass production.

Description

Technical field[0001]The invention belongs to the technical field of wood fire-retardant treatment, and specifically relates to a fire-retardant modified treatment method of fir.Background technique[0002]Cunninghamia lanceolata is the main timber for plantation in southern my country. Because of its fast growth, straight and perfect dry shape, beautiful color and texture, and the plate is not easy to deform and crack, it is widely used in construction and furniture. However, fir is very easy to burn and cause fire when it encounters flame or strong heat radiation. This danger greatly limits the popularization and use of fir. Therefore, the flame retardant modification treatment of fir has important economic value and social significance. Xiao Zhongping (Xiao Zhongping, Hou Lundeng, Yang Wenbin, Lu Jisheng; Research on the flame-retardant treatment process of thinned Chinese fir, Forestry Science and Technology Development, 2001, (1): 22-23) Using self-made organic resin flame retard...

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): B27K3/02B27K5/04B27K3/38B27K3/34B27K3/42
CPCB27K3/02B27K3/0228B27K3/343B27K3/38B27K3/42B27K5/04B27K2240/30
Inventor 毛克升
Owner 福建省顺昌县升升木业有限公司
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