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Soybean non-formaldehyde adhesive, PP film veneering composite floor board and preparation method thereof

A composite floor, formaldehyde-free adhesive technology, applied in the field of flooring, can solve the problems of the product can not eliminate the release of free formaldehyde, the adhesion is not strong, the crack resistance of the impregnated paper veneer is poor, and the hot pressing efficiency is low, The effect of increasing water retention and increasing solid content

Active Publication Date: 2019-07-26
浙江云峰莫干山地板有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem that restricts its further development and the improvement of added value lies in: the surface wear-resistant paper and decorative paper containing formaldehyde are used in the production, resulting in the problem that the product cannot prevent the release of free formaldehyde; The problem of poor cracking performance leads to the limitation of its use environment
CN104746845A discloses a formaldehyde-free reinforced composite floor, which uses HDF density board as the base material, and coats formaldehyde-free component adhesive resin and polyurethane modified coating on the surface of the base material. Density board bonding, this lamination process has weak adhesion; in addition, the process and process of this lamination method are relatively complicated, which limits the use of PP film

Method used

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  • Soybean non-formaldehyde adhesive, PP film veneering composite floor board and preparation method thereof
  • Soybean non-formaldehyde adhesive, PP film veneering composite floor board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 100 parts of water, 200 parts of polyamidoamine-epichlorohydrin resin solution (solid content is 12.5%, pH 3.5, viscosity 35cP), 150 parts of 300 mesh defatted soybean flour, 60 parts of 2500 mesh aluminum hydroxide, 30 parts of flour , 1.5 parts of polysorbate-80, add to the reaction kettle one after another, and stir for 2 hours at 80°C;

[0036] This example provides a method for preparing soybean gum without formaldehyde, which includes the step of stirring the recipe at 80°C for 2 to 3 hours. The function is to denature soybean protein, thereby prolonging the storage time of soybean gum. Glue storage time> 30 days.

Embodiment 2

[0038] 100 parts of water, 200 parts of polyamidoamine-epichlorohydrin resin solution (solid content is 12.5%, pH 3.5, viscosity 35cP), 150 parts of 300 mesh defatted soybean flour, 60 parts of 2500 mesh aluminum hydroxide, 30 parts of flour Add them to the reaction kettle one after another, and stir for 2 hours at 80°C.

Embodiment 3

[0040] Take the soybean gum, urea-formaldehyde gum on the market and the soybean formaldehyde-free gum obtained in Example 1 for performance testing. The performance includes solid content, cost, hot pressing time, and opening time. The results are shown in Table 1;

[0041] Table 1 Performance test table

[0042] product Solid content Cost (yuan / ton) Hot pressing time s / mm Opening time (h) commercially available soybean gum ＜35％ 4300 (50+70) 1h Urea-formaldehyde glue 60％ 3700 60 more than 2h Example 1 47％ 3200 (50+20) more than 2h Example 2 47％ 3100 (50+20) less than 0.5h

[0043] The "solid content" here refers to: the mass percentage of the remaining part of the adhesive after drying under specified conditions; the "hot pressing time" here refers to: when used to make the base material, the After cold-pressing the glue-coated billet, it is sent to the hot press. When the press closes and reaches the process pressu...

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Abstract

The invention provides a manufacturing method of a PP film veneering composite floor board. The composite floor board comprises a PP film surface layer, a non-formaldehyde adhesive layer and a multi-layer base material layer from top to bottom. The manufacturing method comprises the following steps of carrying out plasma and coating treatment on the back surface of a PP film so as to obtain the PPfilm surface layer; coating a soybean non-formaldehyde adhesive, assembling in a criss-cross way, and preparing the multi-layer base material layer through cold pressing and hot pressing; and coatinga non-formaldehyde adhesive on the front surface of the multi-layer base material layer, then adhering the front surface of the multi-layer base material layer and the PP film, and forming the PP film veneering composite floor board through cold pressing and hot pressing.

Description

technical field [0001] The invention belongs to the field of floors, in particular to a multi-layer composite floor with a polypropylene film veneer and a manufacturing method thereof. Background technique [0002] The main varieties of wood flooring are laminate flooring, solid wood composite flooring, solid wood flooring, impregnated paper laminate veneer multi-layer solid wood composite flooring. In recent years, impregnated paper laminate veneered multi-layer solid wood composite flooring has developed rapidly due to the characteristics of both laminate flooring and solid wood composite flooring. However, the problem that restricts its further development and the improvement of added value lies in: the surface wear-resistant paper and decorative paper containing formaldehyde are used in the production, resulting in the problem that the product cannot prevent the release of free formaldehyde; The problem of poor cracking performance leads to the limitation of its use env...

Claims

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Application Information

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IPC IPC(8): B27M3/04B27D1/08E04F15/04E04F15/02C09J177/00C09J189/00C09J199/00C09J11/04
CPCC09J11/04C08K2003/2227C08J7/123C08J7/0427C09D133/04C09D7/61C09J163/00C09J11/08B29C65/4805B29C66/45B29C59/14C08J2323/12C08J2433/00C08L89/00C08L99/00C08K3/22C08K3/34
Inventor 敖景伟桂成胜陆旭晨高水昌施晓宏刘新有李敏潘锦垭朱海峰
Owner 浙江云峰莫干山地板有限公司
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