Surface control technology for PB cold-bonded board

A surface control and cold pasting technology, which is applied in the direction of manufacturing tools, flat products, wood processing appliances, etc., can solve the problems of high process parameter requirements, low bonding strength, glue opening, etc., and achieve low process parameter requirements, enhanced viscosity, The effect of increasing the adhesive area

Active Publication Date: 2021-12-10
佳诺威集团(河南)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high process parameters in the veneering treatment of PB boards in the prior art, and the production of veneering PB boards is limited by the production process level, which is prone to problems such as glue opening, foaming, and low bonding strength. And proposed a PB cold paste board surface control process

Method used

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  • Surface control technology for PB cold-bonded board
  • Surface control technology for PB cold-bonded board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The present invention proposes a process for controlling the surface of PB cold laminated boards. The PB cold laminated boards are connected from composite veneer-plain board-composite veneer through adhesive I in the order from top to bottom, and finally cold-pressed and formed. The thickness of the adhesive I between the composite veneer and the plain plate is 0.1mm, and the bonding area is 100%; the adhesive I is composed of epichlorohydrin and polyvinyl alcohol with a mass ratio of 18:7:3:1. , methyl silicone oil and polyether amine mixed;

[0028] The surface control process of the PB cold paste board specifically includes the following steps:

[0029] S1, preparation of composite veneer:

[0030] S11. In parts by weight, weigh 20 parts of polyvinyl acetate, 25 parts of ethyl acetate, 1 part of magnesium oxide, 6 parts of 5mol / L ammonium chloride solution, and 3 parts of precipitated barium sulfate, and set aside;

[0031] S12. First blend polyvinyl acetate and e...

Embodiment 2

[0039] The present invention proposes a process for controlling the surface of PB cold laminated boards. The PB cold laminated boards are connected from composite veneer-plain board-composite veneer through adhesive I in the order from top to bottom, and finally cold-pressed and formed. The thickness of the adhesive I between the composite veneer and the plain plate is 0.4mm, and the bonding area is 100%; the adhesive I is composed of epichlorohydrin and polyvinyl alcohol in a mass ratio of 21:9:4:1. , methyl silicone oil and polyether amine mixed;

[0040] The surface control process of the PB cold paste board specifically includes the following steps:

[0041] S1, preparation of composite veneer:

[0042] S11, in parts by weight, weigh 30 parts of polyvinyl acetate, 35 parts of ethyl acetate, 2 parts of magnesium oxide, 8 parts of 5mol / L ammonium chloride solution, 4 parts of precipitated barium sulfate, and set aside;

[0043] S12. First blend polyvinyl acetate and ethyl ...

Embodiment 3

[0051] The present invention proposes a process for controlling the surface of PB cold laminated boards. The PB cold laminated boards are connected from composite veneer-plain board-composite veneer through adhesive I in the order from top to bottom, and finally cold-pressed and formed. The thickness of the adhesive I between the composite veneer and the plain plate is 0.7mm, and the bonding area is 100%; the adhesive I is composed of epichlorohydrin and polyvinyl alcohol with a mass ratio of 24:11:5:1. , methyl silicone oil and polyether amine mixed;

[0052] The surface control process of the PB cold paste board specifically includes the following steps:

[0053] S1, preparation of composite veneer:

[0054] S11. In parts by weight, weigh 40 parts of polyvinyl acetate, 45 parts of ethyl acetate, 3 parts of magnesium oxide, 10 parts of 5mol / L ammonium chloride solution, and 5 parts of precipitated barium sulfate, and set aside;

[0055] S12. First, blend polyvinyl acetate a...

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Abstract

The invention belongs to the technical field of artificial board manufacturing, particularly relates to a surface control technology for a PB cold-bonded board, and solves the problems that in the prior art, the requirements of PB board veneering treatment on technological parameters are relatively high, the produced veneered PB board is limited by the production technology level, glue failure, blistering, low bonding strength and the like are easy to occur. According to the technology, the PB cold-bonded board is formed by connecting a composite veneer, a plain board and a composite veneer through an adhesive I from top to bottom and performing cold press molding and post-treatment finally. According to the technology, the composite veneers, the plain board and the adhesive I are prepared, the composite veneer, the plain board and the composite veneer are connected through the adhesive I, and finally, cold press molding is performed to obtain the PB cold-bonded board. The preparation method is simple, cold press molding and cold press curing technologies are adopted, the technological parameter requirements are low, production operation is easy, the preparation cost is low, and the technology is suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of wood-based panel manufacturing, in particular to a PB cold-bonded panel surface control process. Background technique [0002] PB board refers to the use of crushed wood or wood fiber as the main raw material, cutting the main raw material into pieces of a certain size, drying, mixing with rubber, hardener, waterproofing agent, etc., and pressing it under a certain temperature and pressure. Wood-based panels, also known as particle boards, particle boards, particle boards, particle boards, bagasse boards, etc. PB boards are mainly used in the furniture and construction industries, as well as in the manufacture of trains and car carriages. [0003] China's PB board production has gone through a repeated process of rising in the 1980s, falling in the 1990s, and rising again in 2000. After PB boards were abandoned by the market due to poor quality and other reasons, many PB board companies learned their le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/00B27N3/02B29C48/00B29C48/07C08L31/04C08K3/22C08K3/30C08J5/18C09J129/04C09J171/00C09J183/04C09J11/06
CPCB27D1/00B27N3/02B29C48/0021B29C48/022B29C48/07C08J5/18C09J129/04C09J11/06C08J2331/04C08K2003/222C08K2003/3045C08L83/04C08L71/00C08K5/1515
Inventor 郭亚辉吕亮于西宝
Owner 佳诺威集团(河南)新材料有限公司
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