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Polyhedral oligomeric silsesquioxane (POSS) contained environment-friendly inflaming retarding wood adhesive and preparation method thereof

A wood adhesive and environmental protection technology, applied in the directions of adhesives, adhesive additives, inorganic adhesives, etc., can solve problems such as harm to health and environmental pollution by toxic compounds, and achieve excellent water resistance, low cost, and simple preparation process. Effect

Active Publication Date: 2013-01-09
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a POSS-containing environmentally friendly flame-retardant wood adhesive and a preparation method thereof. This water glass wood adhesive is a modified adhesive with strong adhesion and water resistance. Good performance, to solve the technical defects of aldehydes or other toxic compounds polluting the environment and endangering health from the organic adhesives used in the bonding of wood products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 8g of glycidyl isobutyl POSS and 1g of silane coupling agent KH550 to 15g of silica sol, stir at high speed (6000 rpm), and after the dispersion is uniform, reduce the stirring speed (500 rpm) and continue the reaction for 2 hours , to obtain a translucent POSS-silica sol dispersion. Heat 64.5g of sodium silicate to 80°C, add POSS-silica sol dispersion liquid to it while stirring, keep it warm for 4 hours, then lower the reaction temperature to room temperature, add 3g of zinc aluminate, 3.5g of calcium sulfate whiskers, 5g of nano Magnesium oxide, stir and mix evenly to prepare the flame retardant adhesive of the present invention.

Embodiment 2

[0027] Add 7g of trisilanol isobutyl POSS and 0.8g of silane coupling agent KH560 to 13g of silica sol, stir at a high speed (6000 rpm), and after the dispersion is uniform, reduce the stirring speed (500 rpm) and continue the reaction After 1.5 hours, a translucent POSS-silica sol dispersion was obtained. Heat 60g of potassium silicate to 70°C, add POSS-silica sol dispersion liquid to it under stirring, keep it warm for 6 hours, then lower the reaction temperature to room temperature, add 4g of zinc aluminate, 5.2g of calcium sulfate whiskers, 10g of nano Magnesium, stir and mix evenly to prepare the flame retardant adhesive of the present invention.

Embodiment 3

[0029] Add 5g of cyclohexyl isobutyl POSS and 0.5g of aluminate coupling agent to 10g of silica sol, stir at a high speed (6000 rpm), and after the dispersion is uniform, reduce the stirring speed (500 rpm) and continue the reaction After 1 h, a translucent POSS-silica sol dispersion was obtained. Heat 70g of lithium water glass to 60°C, add POSS-silica sol dispersion liquid to it while stirring, keep it warm for 8 hours, then lower the reaction temperature to room temperature, add 3.5g of zinc aluminate, 5.5g of calcium sulfate whiskers, 5.5g The flame retardant adhesive of the present invention is prepared by stirring and mixing nano-magnesium oxide evenly.

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PUM

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Abstract

The invention discloses a polyhedral oligomeric silsesquioxane (POSS) contained environment-friendly inflaming retarding wood adhesive which is composed of the following raw materials of, by weight, 60%-70% of water glass, 5%-8% of POSS, 10%-15% of silica sol, 3%-4% of zinc aluminate, 3.5%-5.5% of calcium sulfate whisker, 5%-10% of nano-magnesium oxide and 0.5%-1% of a coupling agent. The adhesive has the advantages of being flame resistant, high in adhesive force, good in water resistance, anticorrosion, environment-friendly, non-toxic and capable of inhibiting smoke and can be used for adhering various wood materials. The invention further provides a preparation method of the flame resistant adhesive, and the preparation method is simple in operation and easy to control.

Description

technical field [0001] The invention relates to a wood adhesive, in particular to an environmentally friendly flame-retardant wood adhesive containing POSS and a preparation method thereof. Background technique [0002] For a long time, the development of adhesives with flame retardant and fireproof functions has been one of the important directions for the functional development of wood adhesives. At present, research at home and abroad is mainly focused on the method of adding phosphorus-based, nitrogen-based, boron-based, silicon-based, magnesium-based and other inorganic flame retardants to organic adhesives to prepare wood flame-retardant adhesives. In foreign related fields, there are quite a few relatively mature technologies: such as Japanese patent (JP 2000~176917), which uses urea-formaldehyde resin, melamine, sodium phosphate, etc. as main raw materials to prepare flame-retardant adhesives. The flame retardant performance of wood is good, and the bonding strength...

Claims

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Application Information

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IPC IPC(8): C09J1/02C09J11/06C09J11/04
Inventor 吴义强张新荔李贤军李新功胡云楚夏燎原卿彦姚春花吴桂红刘晓梅朱晓丹杨建铭龙科泉
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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