Process for coating formaldehyde-free ecological board with high-tensile-strength PP film veneer

A technology of high tensile strength and ecological board, which is applied in the jointing of wooden veneers, manufacturing tools, wood processing appliances, etc. Low tensile strength and other issues

Active Publication Date: 2021-04-27
广西贵港市泰翔木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a PP film veneer process with high tensile strength coated with formaldehyde-free ecological board to solve the problem that the formaldehyde-free adhesive produced by the prior art has poor viscosity and the tensile strength of PP film is small, which cannot meet the requirements of man-made. Board Production Application Requirements Questions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0044] The preparation method of described formaldehyde-free glue, comprises the following steps:

[0045] a. 40-60 parts by weight of polyether triol and 16-25 parts of tetramethylglutaric acid are added to the reaction kettle, and the polymerization reaction is carried out at a temperature of 76-93°C and a microwave power of 100-200W 1-1.5h, until the reaction is completed;

[0046] b. Add 12-20 parts of propyl formate and 30-50 parts of methyl ethyl ketone to the reaction kettle after the reaction in step a, and carry out dilution and reflux reaction at a temperature of 65-70°C for 2-3 hours to obtain the prepared reaction liquid ;

[0047] c. Cool the reaction solution prepared in step b to 43-48°C, then add 9-17 parts of triisopropanolamine to neutralize and form a salt;

[0048] d. To the neutralization salt prepared in step c, add 45-70 parts of water at a speed of 2000-3000r / min and stir and emulsify for 20-30min to obtain an emulsion;

[0049] e. Add 15-22 parts of...

Embodiment 1

[0063] A kind of formaldehyde-free ecological plate coating high tensile strength PP film finishing process, comprising the following steps:

[0064] (1) Cooperate with the prepared multi-layer solid wood board base material with formaldehyde-free glue. After passing through the double-axis gluing machine, the front and back sides of the base material are evenly coated with the formaldehyde-free glue. The amount of glue applied is 139g / m 3 ;

[0065] The preparation method of described formaldehyde-free glue, comprises the following steps:

[0066] a. Add 40 parts by weight of polyether triol and 16 parts of tetramethylglutaric acid into the reactor, and carry out polymerization reaction at a temperature of 78°C and a microwave power of 100W for 1.4h until the reaction is completed;

[0067] b. Add 13 parts of propyl formate and 32 parts of butanone to the reaction kettle after the reaction in step a, and carry out dilution and reflux reaction for 3 hours at a temperature of ...

Embodiment 2

[0083] A kind of formaldehyde-free ecological plate coating high tensile strength PP film finishing process, comprising the following steps:

[0084](1) Cooperate with the prepared multi-layer solid wood board base material with formaldehyde-free glue, and after passing through the double-axis gluing machine, the front and back sides of the base material are evenly coated with the formaldehyde-free glue, and the amount of glue applied is 141g / m 3 ;

[0085] The preparation method of described formaldehyde-free glue, comprises the following steps:

[0086] a. Add 48 parts by weight of polyether triol and 19 parts of tetramethylglutaric acid into the reactor, and carry out polymerization reaction at a temperature of 85°C and a microwave power of 150W for 1.3h until the reaction is completed;

[0087] b. Add 17 parts of propyl formate and 39 parts of methyl ethyl ketone to the reaction kettle after the reaction in step a, and carry out a dilution reflux reaction at a temperature...

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PUM

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Abstract

The invention discloses a process for coating a formaldehyde-free ecological board with a high-tensile-strength PP film veneer. The process comprises the following steps that (1) a prepared multi-layer solid wood board base material is enabled to pass through a double-shaft laminator in cooperation with formaldehyde-free glue, and the formaldehyde-free glue is uniformly smeared on the front and back surfaces of the base material; (2) a base material plate at the front end of the laminator is pushed for lamination, then a laminated plate is connected at the rear end of the laminator and a PP film is laid, a backer of a long side and a short plate is arranged on a lifting platform for connecting the plates and stacking, then a bottom PP film is laid, the laminated plate is flatly placed on a stacking lifting platform, then a front PP film is laid, and the steps are repeated; (3) the laid PP film formaldehyde-free plate is placed in a cold press to be pre-pressed; (4) after prepressing is finished, the plate is moved to a hot press to be subjected to hot pressing; and (5) after the hot pressing is finished, the board is subjected to edge sawing treatment, and a high-tensile-strength PP film veneer decorative formaldehyde-free ecological board is prepared. The formaldehyde-free ecological board prepared by the invention is excellent in performance and high in production efficiency, and can meet production and application requirements.

Description

technical field [0001] The invention belongs to the technical field of wood-based panel processing, and in particular relates to a process for covering a high tensile strength PP film with a formaldehyde-free ecological panel. Background technique [0002] The adhesive industry is one of the fastest-growing fine chemical industries in the world. With the development of the economy and the enhancement of people's awareness of environmental protection, it has attracted more and more attention from all over the world. As a common product and technology in many industries, it is non-toxic, harmless and environmentally friendly. The new social demand for adhesive properties such as friendliness and degradability has made natural biomass materials used as raw materials to obtain various environmentally compatible, low-cost, economical and practical green adhesive products and technologies, which has become a research hotspot in the field of adhesives today. [0003] Most types of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/08C09J167/00C08G63/668C08J5/18B29B9/06B29C48/92B29C48/10B29C48/00B29C55/28
CPCB27D1/08C09J167/00C08G63/668C08J5/18B29B9/06B29C48/92B29C48/10B29C48/0018B29C55/28C08J2323/12C08J2489/00C08J2401/28C08J2477/04C08J2403/02C08K13/04C08K7/14B29C2948/92704B29C2948/92895
Inventor 杨芝勇杨乐杨栩罗凤蓉杨枝林
Owner 广西贵港市泰翔木业有限公司
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