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Plywood filling agent capable of capturing free formaldehyde

A free formaldehyde, plywood technology, applied in the direction of adhesive additives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of wasting food, high prices, unable to capture adhesive formaldehyde, etc., to avoid mildew The effect of changing, reducing use and increasing initial viscosity

Inactive Publication Date: 2018-12-11
阜南盛原木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the adhesives used in plywood production are mainly urea-formaldehyde resin and phenolic resin. In order to prolong the shelf life, this adhesive is generally made relatively thin when it leaves the factory, with a solid content of less than 46%. The pre-pressing effect of the board can reduce the cost of the adhesive. Plywood enterprises must add fillers to the resin. The raw materials used as adhesive fillers are mainly wheat flour and soybean flour, both of which are food crops. Not only is food wasted, but also the price is high. It affects the economic benefits of the enterprise, and at the same time, wheat flour as a filler cannot capture the free formaldehyde in the adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A plywood filler capable of capturing free formaldehyde, comprising the following raw materials in parts by weight: 15 parts of wollastonite powder, 4 parts of hematite molecular sieve, 1.5 parts of Glauber's salt, 20 parts of tea residue powder, 2.2 parts of aromatic hydrogen oil, polycarbonate 8 parts of diol, 3 parts of dimethyl-β-thiatin propionate, 24 parts of corn husk puffed superfine powder.

[0016] As a further improvement to the above solution, the silica content of the wollastonite powder is 0.3%, and the particle size is 800 mesh.

[0017] As a further improvement to the above scheme, the hematilite molecular sieve is a Y-type molecular sieve, wherein the hematilite molecular sieve has a silicon-aluminum ratio of 7.

[0018] As a further improvement to the above scheme, the water content of the tea leaves powder is 4%, and the particle size is 120 mesh.

[0019] As a further improvement to the above scheme, the aromatic hydrogen oil is a high aromatic hydr...

Embodiment 2

[0025] A plywood filler capable of capturing free formaldehyde, comprising the following raw materials in parts by weight: 12 parts of wollastonite powder, 5 parts of hematite molecular sieve, 1 part of Glauber's salt, 22 parts of tea residue powder, 1.8 parts of aromatic hydrogen oil, polycarbonate 10 parts of diol, 2 parts of dimethyl-β-thiatin propionate, 26 parts of corn husk puffed superfine powder.

[0026] As a further improvement to the above solution, the silica content of the wollastonite powder is 0.3%, and the particle size is 800 mesh.

[0027] As a further improvement to the above scheme, the hematilite molecular sieve is a Y-type molecular sieve, wherein the hematilite molecular sieve has a silicon-aluminum ratio of 7.

[0028] As a further improvement to the above scheme, the water content of the tea leaves powder is 3%, and the particle size is 120 mesh.

[0029] As a further improvement to the above scheme, the aromatic hydrogen oil is a high aromatic hydrog...

Embodiment 3

[0035] A plywood filler capable of capturing free formaldehyde, comprising the following raw materials in parts by weight: 18 parts of wollastonite powder, 3 parts of hematite molecular sieve, 2 parts of mirabilite, 18 parts of tea residue powder, 2.6 parts of aromatic hydrogen oil, polycarbonate 6 parts of diol, 4 parts of dimethyl-β-thiatin propionate, 22 parts of corn husk puffed superfine powder.

[0036] As a further improvement to the above solution, the silica content of the wollastonite powder is 0.3%, and the particle size is 800 mesh.

[0037] As a further improvement to the above scheme, the hematilite molecular sieve is a Y-type molecular sieve, wherein the hematilite molecular sieve has a silicon-aluminum ratio of 7.

[0038] As a further improvement to the above scheme, the water content of the tea leaves powder is 5%, and the particle size is 120 mesh.

[0039] As a further improvement to the above scheme, the aromatic hydrogen oil is a high aromatic hydrogen o...

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Abstract

The invention belongs to the technical field of plywood processing and in particular relates to a plywood filling agent capable of capturing free formaldehyde. The plywood filling agent is prepared from the following raw materials in parts by weight: 12 to 18 parts of wollastonite powder, 3 to 5 parts of a stellerite molecular sieve, 1 to 2 parts of mirabilite, 18 to 22 parts of tea leaf dreg powder, 1.8 to 2.6 parts of aromatic hydrogen oil, 6 to 10 parts of polycarbonate diol, 2 to 4 parts of dimethyl-beta-propiothetin and 22 to 26 parts of corn husk puffed ultra-micro powder. Compared withthe prior art, the plywood filling agent has the following advantages that the filling agent is reasonably matched and the initial viscosity of resin is increased; the utilization of cereal crops is reduced and mildewing is avoided; the corn husk puffed ultra-micro powder, the stellerite molecular sieve and the mirabilite have a synergistic effect and can be used for effectively absorbing the freeformaldehyde, so that the plywood filling agent is suitable for being popularized.

Description

technical field [0001] The invention belongs to the technical field of plywood processing, and in particular relates to a plywood filler capable of capturing free formaldehyde. Background technique [0002] Plywood is a three-layer or multi-layer board-like material that is made of wood sections that are peeled into veneers or sliced ​​into thin wood, and then glued with adhesives. Usually, odd-numbered veneers are used, and adjacent layers of veneers are used. The fiber directions are glued perpendicular to each other. Plywood is one of the commonly used materials for furniture and is a kind of wood-based panel. [0003] At present, the adhesives used in plywood production are mainly urea-formaldehyde resin and phenolic resin. In order to prolong the shelf life, this adhesive is generally made relatively thin when it leaves the factory, with a solid content of less than 46%. The pre-pressing effect of the board can reduce the cost of the adhesive. Plywood enterprises must...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/08C09J11/06C09J11/04
Inventor 张帅
Owner 阜南盛原木业有限公司
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