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Additive composite for eliminating formaldehyde in adhesive and preparation method thereof

An additive and composition technology, applied in the direction of adhesives, adhesive types, aldehyde/ketone condensation polymer adhesives, etc., can solve problems such as eye irritation, eye irritation, and life-threatening

Inactive Publication Date: 2010-03-31
吴彩莲 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the medical research report further pointed out that the above-mentioned formaldehyde exists in the air in a form that can evaporate at room temperature, and its toxicity, irritation, carcinogenicity and special odor will affect the skin and mucous membranes, and have acute effects on the human body. Damage, usually when the concentration reaches 0.01-1.6ppm, it will start to irritate the eyes; if the concentration reaches 2-3ppm, it will cause tingling sensation in the eyes; if it reaches 10-20ppm, it will cause severe tears; if the concentration reaches 30ppm, it will endanger life; thus It can be seen that the serious harm of formaldehyde hidden around the room to human health cannot be underestimated.

Method used

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  • Additive composite for eliminating formaldehyde in adhesive and preparation method thereof
  • Additive composite for eliminating formaldehyde in adhesive and preparation method thereof
  • Additive composite for eliminating formaldehyde in adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The preparation of embodiment 1 additive composition of the present invention

[0038] Weigh each raw material according to the following weight (unit: kg):

[0039] Chitin 3, organic acid 2, aseptic acid 2, potassium persulfate 1, alkyl polyoxyethylene ether sulfate 0.5, alkyl sulfate 1.0, polyoxyethylene alkyl ether 0.5, water 90;

[0040] Chitin and a certain amount of water (the amount of water is enough to fully dissolve chitin in it) are mixed and placed in the first stirring tank for about 20 minutes of preliminary mixing and stirring until the chitin is completely dissolved and does not precipitate, and the chitin is obtained. Vegetable base solution, set aside; mix the organic acid and the remaining water in the second stirring tank for about 15 minutes of preliminary mixing and stirring, then add ascorbic acid in the continuous stirring operation and continue stirring for about 15 minutes, then Slowly add potassium persulfate accounting for 6 / 7 of the total wei...

Embodiment 2

[0041] Embodiment 2 Preparation of the additive composition of the present invention

[0042] Weigh each raw material according to the following weight (unit: kg): chitin 10, organic acid 12, aseptic acid 8, potassium persulfate 6, alkyl polyoxyethylene ether sulfate 1.5, alkyl sulfate 2.0, polyoxyethylene Vinyl ether 1.0, water 59.5;

[0043] Chitin and a certain amount of water (the amount of water is enough to fully dissolve chitin in it) are mixed and placed in the first stirring tank for about 20 minutes of preliminary mixing and stirring until the chitin is completely dissolved and does not precipitate, and the chitin is obtained. Vegetable base solution, set aside; mix the organic acid and the remaining water in the second stirring tank for about 15 minutes of preliminary mixing and stirring, then add ascorbic acid in the continuous stirring operation and continue stirring for about 15 minutes, then Slowly add potassium persulfate accounting for 6 / 7 of the total weight...

Embodiment 3

[0044] Embodiment 3 Preparation of the additive composition of the present invention

[0045] Each raw material was weighed according to the following weight (unit: kg): chitin 6, organic acid 8, ascorbic acid 4, potassium persulfate 3, alkyl polyoxyethylene ether sulfate 1.0, alkyl sulfate 1.5, polyoxyethylene Vinyl ether 0.8, water 75.7;

[0046] Chitin and a certain amount of water (the amount of water is enough to fully dissolve chitin in it) are mixed and placed in the first stirring tank for about 20 minutes of preliminary mixing and stirring until the chitin is completely dissolved and does not precipitate, and the chitin is obtained. Vegetable base solution, set aside; mix the organic acid and the remaining water in the second stirring tank for about 15 minutes of preliminary mixing and stirring, then add ascorbic acid in the continuous stirring operation and continue stirring for about 15 minutes, then Slowly add potassium persulfate to ensure that there is no incomp...

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Abstract

The invention discloses an additive composite for eliminating formaldehyde in adhesive and a preparation method thereof. The additive composite comprises chitin, organic acid, anti-sepsis acid, potassium persulfate, boundary surface active agent and water. The preparation method thereof comprises: mixing and stirring chitin and proper amount of water to manufacture a chitin base solution; mixing and stirring water, organic acid, anti-sepsis acid and potassium persulfate to manufacture an acidic base solution; evenly mixing the prepared chitin base solution and the acidic base solution, and regulating the solution by potassium persulfate to obtain the additive composite. The additive composite absorbs and decomposes the formaldehyde in adhesive through chelation of chitin and amino, can convert formaldehyde in adhesive into water and other harmless substances to achieve the aim of eliminating formaldehyde, thus avoiding air pollution caused by release of formaldehyde in adhesive. The additive composite can effectively eliminate formaldehyde in adhesive without changing properties and shape of the adhesive, thus being extensively applicable to water adhesives.

Description

technical field [0001] The present invention relates to an additive composition, in particular to an additive composition that can effectively remove formaldehyde in the adhesive without changing the properties of the adhesive and is widely used in water-based adhesives. The present invention also relates to the composition of the additive The preparation method belongs to the field of chemical industry. Background technique [0002] Currently commonly used adhesives are closely related to our lives and habits. Most of their components contain formaldehyde (commonly known as formalin). These adhesives are mainly composed of urea, urea-formaldehyde resin and polyvinyl acetate resin synthesized from formaldehyde. Among them, the urea-formaldehyde resin of the adhesive has been widely used in the manufacture and processing of plywood, wood core board, laminated board and other boards since its development due to its advantages of low price, colorless, and good water solubility....

Claims

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Application Information

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IPC IPC(8): C09J11/00C09J161/24C09J131/04
Inventor 吴彩莲吴正婷
Owner 吴彩莲
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