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High-molecular polymer PVP

A high-molecular polymer and deionized water technology, applied in the field of high-molecular polymer PVP, can solve the problems of easy drying and shrinking storage, large coating resistance, low mechanical strength, etc., and achieves high recycling value, low production cost, and viscosity. Strong relay effect

Inactive Publication Date: 2015-06-17
LUOHE LOUFOR STATIONERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the currently sold PVP polymers have such phenomena as large smear resistance, poor initial viscosity, low mechanical strength, easy drying and shrinkage, and unstable storage in terms of performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] When preparing high-molecular polymer PVP, use the electronic temperature control system, first add 60.7 wt% deionized water and place it in an electric heating reactor. When the temperature reaches 75 °C ± 2 °C, open the steam valve and add polyvinylpyrrolidone powder 20 wt%, stir evenly for 30 minutes, when the temperature rises to 80℃±2℃, turn off the steam and continue to observe the temperature change. Then add 7% stearic acid, fully dissolve it, then add 10wt% glycerin, 2wt% sodium benzoate, 0.30wt% ethyl p-hydroxybenzoate and stir evenly. When the temperature control reaches 90°C±2°C, keep 1 After 1 hour, the solution is fully dissolved; let it stand for 30 minutes, and finally condense and form a high molecular polymer PVP material. The pH of the prepared high molecular polymer PVP material is 6.5, with strong adhesion, good slipperiness, small smear resistance, and long shelf life. Long, can guarantee more than 18 months.

Embodiment 2

[0024] When preparing high-molecular polymer PVP, use the electronic temperature control system, first add 65 wt% of deionized water and place it in an electric heating reactor. When the temperature reaches 75 °C ± 2 °C, open the steam valve and add polyvinylpyrrolidone powder 15.7 wt%, stir evenly for 30 minutes, when the temperature rises to 80℃±2℃, turn off the steam and continue to observe the temperature change. Then add 7% stearic acid, fully dissolve it, then add 10wt% glycerin, 2wt% sodium benzoate, 0.30wt% ethyl p-hydroxybenzoate and stir evenly. When the temperature control reaches 90°C±2°C, keep 1 Hours, the solution is fully dissolved; let stand for 30 minutes, and finally condense and form a high molecular polymer PVP material. The prepared high molecular polymer PVP material has a pH of 6.8, strong adhesion, good slipperiness, small smear resistance, and long shelf life. Long, can guarantee more than 18 months.

Embodiment 3

[0026] When preparing high-molecular polymer PVP, use the electronic temperature control system, first add 66wt% deionized water and place it in an electric heating reactor. When the temperature reaches 75°C±2°C, open the steam valve and add 15.7 wt% polyvinylpyrrolidone powder %, stir evenly for 30 minutes, when the temperature rises to 80℃±2℃, turn off the steam and continue to observe the temperature change. Then add 6% stearic acid, fully dissolve it, then add 10wt% glycerin, 2wt% sodium benzoate, 0.30wt% ethyl p-hydroxybenzoate and stir evenly. When the temperature control reaches 90°C±2°C, keep 1 After 1 hour, the solution is fully dissolved; let it stand for 30 minutes, and finally condense and form a high molecular polymer PVP material. The pH of the prepared high molecular polymer PVP material is 7.5, with strong adhesion, good slipperiness, small smear resistance, and long shelf life. Long, can guarantee more than 18 months.

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Abstract

The invention discloses a green and environment-friendly high-molecular polymer PVP. Deionized water, polyvinyl pyrrolidone (PVP) powder, stearic acid, glycerin, sodium benzoate, and ethyl p-hydroxybenzoate are taken as the main raw materials, and made into a high-molecular polymer material through a scientific condensation technology; wherein the high-molecular polymer material is harmless to human body, is green and environment-friendly, and has a wide application range and low price. The provided high-molecular polymer PVP has the advantages of long service life, high viscosity, good slip performance, low smearing resistance, low production cost, and high cyclic utilization value.

Description

technical field [0001] The invention relates to a formula and a preparation method of high-molecular polymer PVP, which is used in the fields of various coating glues, stationery solid glues, liquid glues and the like. Background technique [0002] Polyvinylpyrrolidone, referred to as PVP, is a completely artificially synthesized water-soluble polymer compound. It is a series of polymers with excellent properties obtained from the monomer N-vinylpyrrolidone through homopolymerization, copolymerization, and cross-linking polymerization. Fine chemical products. Although PVP products have been available for more than 50 years, they are still one of the few artificially synthesized compounds that have good compatibility with humans and animals. It has excellent solubility, physiological compatibility, complexation, film-forming, adhesive ability, water absorption and moisturizing properties, so it has great potential in the fields of pharmaceutical preparations, biomedicine, co...

Claims

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Application Information

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IPC IPC(8): C08L39/06C08K5/053C08K5/098C08K5/101
Inventor 王卫华谯秀全王卫勤谢桃山刘丹
Owner LUOHE LOUFOR STATIONERY MFG
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