Preparation method of non-formaldehyde adhesive for thermal insulation material

A technology of formaldehyde-free adhesives and thermal insulation materials, applied in the direction of adhesives, adhesive additives, adhesive types, etc., can solve problems such as environmental and human health impacts, achieve cost reduction, high bonding strength, and simple preparation methods Effect

Inactive Publication Date: 2019-01-04
金隅微观(沧州)化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aldehyde-based adhesives are widely used due to their low price and high bonding strength, but the problem of formaldehyde residues has a serious impact on the environment and human health
In this regard, researchers have done a lot of work, changing the production process and ratio, trying to reduce the impact of formaldehyde, but as long as three-aldehyde resin is used, formaldehyde will inevitably be released

Method used

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  • Preparation method of non-formaldehyde adhesive for thermal insulation material

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Embodiment 1

[0017] A method for preparing a formaldehyde-free adhesive for thermal insulation materials, the process comprising:

[0018] (1) Mix 10 parts of monobasic sugar and 2 parts of acid catalyst in parts by weight, start to stir, raise the temperature to 40°C, keep and fully dissolve, react at 80°C, add 20 parts of water into the reaction container and react for 20 minutes to obtain Formaldehyde-free adhesive mother liquor, monovalent sugars include fructose, glucose and galactose, the mixing ratio is 1:1:2, acid catalysts include hydrochloric acid and oxalic acid, and the mixing ratio is 1:1;

[0019] (2) Stir 100 parts of formaldehyde-free adhesive mother liquor, 0.1 part of silane coupling agent, 1 part of curing agent, and 0.5 part of water-repellent agent in parts by weight to obtain a non-formaldehyde-free adhesive that can be directly applied to thermal insulation materials. Aldehyde adhesive, silane coupling agent is vinyl trichlorosilane, curing agent is sodium hydroxide,...

Embodiment 2

[0021] A method for preparing a formaldehyde-free adhesive for thermal insulation materials, the process comprising:

[0022] (1) Mix 40 parts of monobasic sugar and 8 parts of acid catalyst in parts by weight, start stirring, raise the temperature to 55°C, keep and fully dissolve, react at 90°C, add 60 parts of water into the reaction container and react for 100 minutes Obtain the formaldehyde-free adhesive mother liquor, the monovalent sugar includes fructose, glucose and galactose, its mixing ratio is 1:1:2, and the acid catalyst is acetic acid;

[0023] (2) Stir 100 parts of formaldehyde-free adhesive mother liquor, 2 parts of silane coupling agent, 10 parts of curing agent, and 3 parts of water-repellent agent in parts by weight to obtain the non-formaldehyde adhesive that can be directly applied to thermal insulation materials. Aldehyde adhesive, silane coupling agent is vinyl trichlorosilane, curing agent is ammonium chloride, water repellent is modified methyl hydrogen...

Embodiment 3

[0025] A method for preparing a formaldehyde-free adhesive for thermal insulation materials, the process comprising:

[0026] (1) Mix 60 parts of monobasic sugar and 15 parts of acid catalyst in parts by weight, start stirring, raise the temperature to 60°C, keep and fully dissolve, react at 100°C, add 80 parts of water into the reaction vessel and react for 180 minutes Obtain the formaldehyde-free adhesive mother liquor, the monovalent sugar includes fructose, glucose and galactose, and its mixing ratio is 1:1:2, and the acid catalyst is tartaric acid and malic acid, and its mixing ratio is 1:2;

[0027] (2) Stir 100 parts of formaldehyde-free adhesive mother liquor, 3 parts of silane coupling agent, 20 parts of curing agent, and 5 parts of water-repellent agent in parts by weight to obtain the non-formaldehyde adhesive that can be directly applied to the insulation material. Aldehyde adhesive, the silane coupling agent is γ-chloropropyltrimethoxysilane, the curing agent is a...

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Abstract

The invention discloses a preparation method of a non-formaldehyde adhesive for a thermal insulation material. Formaldehyde is not used as a raw material, the problem of formaldehyde release is solvedfundamentally, used raw materials are non-poisonous and harmless, environment protection and no pollution are really achieved, the adhesive can be applied to indoor rock wool and glass wool thermal insulation materials relievedly, and a user does not worry about the harm of chemical products. In addition, the prepared non-formaldehyde adhesive has the advantages of being high in bonding strength,good in water resistance, good in ageing resistance performance and the like, the raw materials are simple and easy to obtain, and the preparation method is simple.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a method for preparing a formaldehyde-free adhesive used for thermal insulation materials. Background technique [0002] With the improvement of people's living standards, people pay more and more attention to the quality of life, and gradually pay attention to the amount of formaldehyde released in home decoration. Aldehyde-based adhesives are widely used due to their low price and high bonding strength, but the problem of formaldehyde residues has a serious impact on the environment and human health. In this regard, researchers have done a lot of work, changing the production process and proportion, trying to reduce the impact of formaldehyde, but as long as trialdehyde resin is used, formaldehyde will inevitably be released. To fundamentally solve this problem, it is necessary to develop a formaldehyde-free adhesive. [0003] The formaldehyde-free adhesive developed by our c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J105/00C09J11/08
Inventor 赵明冯绍园
Owner 金隅微观(沧州)化工有限公司
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