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Potato starch graft emulsion, preparation and application thereof

A technology of potato starch and emulsion, which is applied in the field of polymers, can solve the problems of affecting popularization and application, and the increase of product cost, and achieve the effects of superior performance, improved alkalinity and scrub resistance, and good application prospects

Inactive Publication Date: 2010-12-08
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of organic solvent is relatively large, resulting in higher product costs and affecting its promotion and application.

Method used

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  • Potato starch graft emulsion, preparation and application thereof
  • Potato starch graft emulsion, preparation and application thereof
  • Potato starch graft emulsion, preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) Preparation of potato starch graft emulsion

[0050] Formula: by weight

[0051] 10 parts of potato starch, 10 parts of methacrylic acid, 50 parts of methyl methacrylate, 50 parts of butyl acrylate, 10 parts of hydroxypropyl methacrylate, 10 parts of diacetone acrylamide, 2 parts of potassium persulfate, deionized water 70 servings.

[0052] Process: first mix potato starch with deionized water, heat to 40°C, and gelatinize for 20 minutes; then mix methacrylic acid, methyl methacrylate, butyl acrylate, hydroxypropyl methacrylate, diacetone acrylamide with Mix the gelatinized potato starch, add the initiator potassium persulfate, and stir for 0.5 to 1.0 hours under the protection of nitrogen, so that the mixture is mixed evenly under stirring; then heat up to 95°C with a water bath, and cool down to 65°C after 2 hours of reaction , neutralized to pH = 7 with ammonia water to obtain potato graft emulsion. The measured solid content is 20-25%.

[0053] After measur...

Embodiment 2

[0059] (1) Preparation of potato starch graft emulsion

[0060] Formula: by weight

[0061] 20 parts of potato starch, 10 parts of acrylic acid, 20 parts of methyl methacrylate, 50 parts of styrene, 50 parts of butyl acrylate, 15 parts of hydroxyethyl methacrylate, 5 parts of diacetone acrylamide, 10 parts of acrylamide, 1 part of potassium sulfate, 200 parts of deionized water.

[0062] Process: first mix potato starch with deionized water, gelatinize at 60°C for 30 minutes; then add acrylic acid, methyl methacrylate, styrene, butyl acrylate, hydroxyethyl methacrylate, diacetone acrylamide, Mix acrylamide with gelatinized potato starch, add initiator potassium persulfate, and stir for 0.5 to 1.0 hours under nitrogen protection to make the mixture evenly mixed under stirring; then heat up to 85°C with water bath, and cool down after 2 hours of reaction to 50°C, and neutralized with ammonia water to pH = 8 to obtain a potato graft emulsion. The measured solid content is 20-2...

Embodiment 3

[0069] (1) Preparation of potato starch graft emulsion

[0070] 10 parts of potato starch, 5 parts of methacrylic acid, 5 parts of acrylic acid, 20 parts of methyl methacrylate, 40 parts of styrene, 60 parts of butyl acrylate, 5 parts of acrylamide, 10 parts of hydroxypropyl methacrylate, diacetone Acrylamide 15 parts, deionized water 200 parts, potassium persulfate 2 parts.

[0071] Process: first mix potato starch with deionized water, gelatinize at 70°C for 60 minutes, then add methacrylic acid, acrylic acid, methyl methacrylate, styrene, butyl acrylate, acrylamide, hydroxypropyl methacrylate 1. Diacetone acrylamide is mixed with gelatinized potato starch, and the initiator potassium persulfate is added, and stirred for 0.5 to 1.0 hours under the protection of nitrogen, so that the mixture is mixed evenly under stirring; Hours later, the temperature was lowered to 60° C., neutralized with ammonia water to pH = 9, and the potato graft emulsion was obtained. The measured so...

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Abstract

The invention provides a potato starch graft emulsion which is formed by carrying out monomer graft polymerization on potato starch, unsaturated alkyl acid, styrene, methyl methacrylate, butyl methacrylate, butyl acrylate, hydroxypropyl methacrylate, hydroxy-ethyl methacrylate, acrylic amide, diacetone acrylamide and the like. The potato starch graft emulsion is taken as main film forming matter of paint and is added with conventional inorganic polymer filler which is adopted for preparing the paint, so that the prepared paint has the functions of decoration, humidity adjustment, permeability, heat preservation, moisture condensation prevention, water and alkali resistance, antibiosis and the like; meanwhile, the invention also can prevent a coating from falling off caused by various leakage and water condensation of a wall body, thus ensuring the coating to be more durable; and the potato starch graft emulsion does not contain organic solvent and is safer and more environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of polymers, and relates to a starch graft emulsion, in particular to a potato starch graft emulsion and a preparation method thereof; at the same time, the invention also relates to the application of the potato starch graft emulsion in the production of humidity-adjusting interior wall paint application. Background technique [0002] Air humidity is an important environmental parameter closely related to human health and work and life. If it is too high or too low, it will affect people's normal life. "Heating Ventilation and Air Conditioning Design Specifications" GB50019-2003 stipulates that the standard value of indoor relative humidity is 40% to 60% for air-conditioned rooms in summer and 30% to 60% for heated rooms in winter, taking into account microbial growth, human disease, and item deterioration As well as various factors such as comfort, it is recognized that the best relative humidity range is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/00C09D151/02C09D7/12
Inventor 王荣民王俊峰郭俊峰何玉凤蒋梦兰王晓雯
Owner NORTHWEST NORMAL UNIVERSITY
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