White emulsion with environmental protection and high viscosity and its preparation method

A high-viscosity, white latex technology, applied in the direction of monocarboxylate copolymer adhesives, adhesive types, etc., can solve the limitations of ethyl acetate emulsion application, white latex can not meet environmental protection standards, and comprehensive performance is not good No problems such as improvement, to achieve good social benefits, low cost, low shrinkage effect

Inactive Publication Date: 2012-06-06
圣象实业(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology produces products that are safe for human health but have better quality than existing methods due to its simplicity, affordability, ease of manufacture, and environmental friendliness compared to current chemical processes. These qualities include strong bonds without containing any hazardous compounds like formalin or others, which makes them suitable for various applications where they were previously developed.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the properties (ease dryness) and durability of traditional black rubber products due to their lack of good water resistance even after being exposed for prolong periods during transportations.

Method used

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  • White emulsion with environmental protection and high viscosity and its preparation method
  • White emulsion with environmental protection and high viscosity and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] White latex, wherein the weight composition of each component in the raw material is as follows: 250 grams of vinyl acetate; 8 grams of polyvinyl alcohol 1788 type, 13 grams of 1799 type; Initiator: mass concentration is 11 grams of 10% ammonium persulfate solution; 4 grams of phenol polyoxyethylene ether (OP-10); 20 grams of dibutyl phthalate (DBP); 2.8 grams of N-methylolacrylamide (NMA); 10 grams of 95% ethanol; 3 0.6 grams; 1 gram of sodium benzoate; 305 grams of distilled water; 5 grams of methyl silicone oil. Prepare as follows:

[0038] (1) Add distilled water and polyvinyl alcohol in the reaction kettle (four-necked flask) according to the above ratio, and stir at an appropriate speed at a constant speed;

[0039] (2) The temperature of the entire reaction system is raised to 90±2°C to completely dissolve the polyvinyl alcohol;

[0040] (3) Cool down the entire reaction system to 60°C, add all the emulsifier, octylphenol polyoxyethylene ether (OP-10) and antif...

Embodiment 2

[0046] The weight composition of each component in the raw material of white latex is as follows: vinyl acetate 200 grams; Polyvinyl alcohol 1788 type 6 grams, 1799 type 9 grams; Initiator: mass concentration is 6 grams of 10% ammonium persulfate solution; Octylphenol Polyoxyethylene ether (OP-10) 3 grams; Dibutyl phthalate (DBP) 15 grams; N-methylolacrylamide (NMA) 2 grams; 95% ethanol 5 grams; NaHCO 3 0.5 grams; 0.5 grams of sodium benzoate; 250 grams of distilled water; 5 grams of methyl silicone oil. Prepare as follows:

[0047] (1) Add distilled water and polyvinyl alcohol in the reaction kettle (four-necked flask) according to the above ratio, and stir at an appropriate speed at a constant speed;

[0048] (2) The temperature of the entire reaction system is raised to 90±2°C to completely dissolve the polyvinyl alcohol;

[0049](3) Cool down the entire reaction system to 60°C, add all the emulsifier, octylphenol polyoxyethylene ether (OP-10) and antifoaming agent, methy...

Embodiment 3

[0055] The weight composition of each component in the raw material of white latex is as follows: vinyl acetate 300 grams; Polyvinyl alcohol 1788 type 13 grams, 1799 type 17 grams; Initiator: mass concentration is 16 grams of 10% ammonium persulfate solution; Octylphenol Polyoxyethylene ether (OP-10) 8 grams; Dibutyl phthalate (DBP) 20 grams; N-methylolacrylamide (NMA) 4 grams; 95% ethanol 15 grams; NaHCO 3 1 gram; 1 gram of sodium benzoate; 400 grams of distilled water; 5.5 grams of methyl silicone oil. Prepare as follows:

[0056] (1) Add distilled water and polyvinyl alcohol in the reaction kettle (four-necked flask) according to the above ratio, and stir at an appropriate speed at a constant speed;

[0057] (2) The temperature of the entire reaction system is raised to 90±2°C to completely dissolve the polyvinyl alcohol;

[0058] (3) Cool down the entire reaction system to 60°C, add all the emulsifier, octylphenol polyoxyethylene ether (OP-10) and antifoaming agent, meth...

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Abstract

The invention discloses a white emulsion and its preparation method, which belongs to the adhesive field. The preparation method comprises the following steps: adding distilled water and polyvinyl alcohol in a reaction kettle according to the above proportion, uniformly stirring with proper speed; adding all octyl phenol polyoxyethylene ether and methyl silicone oil in proportion, stirring and fully mixing; adding a 10% ammonium persulfate solution with 30% of total weight and all N-methylolacrylamide solution aqueous solution with the 60% of mass concentration, adding a vinyl acetate monomer with 15% of total weight drop by drop in 35 minutes, keeping the temperature of 71-73 DEG C, adding the residual vinyl acetate monomer drop by drop at the temperature, finishing the adding process in 3-5 hours, adding mixed liquor of 95% ethanol, sodium bicarbonate and sodium benzoate, and dibutyl phthalate, stirring for 40 minutes to obtain the product. The white emulsion of the present invention has the advantages of excellent performance, low cost, simple production process, frost resistance and water resistance.

Description

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Claims

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Application Information

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Owner 圣象实业(江苏)有限公司
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