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One-step synthesis process of producing biodegradable high-hydroscopicity resin directly with corn powder

A technology of superabsorbent resin and synthesis method, which is applied in the field of synthetic resin production, can solve problems such as the difficulty of large-scale production, and achieve the effects of environmental protection, soil structure improvement, and volatilization reduction

Inactive Publication Date: 2004-01-21
NORTHEAST NORMAL UNIVERSITY
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Problems solved by technology

[0014] In order to solve the problem that there are many shortcomings in the traditional synthesis method of superabsorbent resin, which makes it difficult to achieve large-scale production, in order to find a simple and easy production method of superabsorbent resin, reduce costs, benefit environmental protection, and improve economic benefits, it is specially developed. this invention

Method used

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  • One-step synthesis process of producing biodegradable high-hydroscopicity resin directly with corn powder
  • One-step synthesis process of producing biodegradable high-hydroscopicity resin directly with corn powder

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Embodiment Construction

[0032] The best embodiment of the present invention is: at normal temperature, prepare 85ml of sodium hydroxide solution with a concentration of 26%, slowly add it into 60g of propylene-based monomer after cooling to room temperature, and keep stirring to complete the reaction. Cool to 35°C. Under the condition of constant stirring, 11g of corn flour and 1g of peat powder were successively added to make the corn flour and peat powder evenly dispersed, and the mixture was stirred at constant temperature for 30 minutes. Then slowly add 0.7 g of initiator and 0.2 g of cross-linking agent in sequence, and stir for 2 hours at constant temperature. Add 17ml of ammonia water, and the reaction system will react to completion after standing for 10 minutes. The obtained product is dried at 120°C, crushed and pulverized to obtain a light yellow powder product, which is the final product with an average water absorption rate of 800-1000 times.

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Abstract

The present invention belongs to chemical synthesis process of polymer and relates to the production of synthetic resin. By combining artificial polymerization and polymer grafting into one step, the present invention produces high-hydroscopicity resin with corn powder in one step. Turf is added into the material to improve performance and exothermic reaction for heat crosslinking is adopted for easy temperature control. The technological process is simple and produces no side product and waste, and the product has hydroscopicity of 800-1000 times and is biodegradable. The product may be used as water saving material in solving crop water deficiency problem.

Description

technical field [0001] The invention belongs to a chemical synthesis method of polymer materials, in particular to a production method of synthetic resin. Superabsorbent resin is a low-crosslinked or partially crystalline high-molecular polymer with many hydrophilic groups, so it has the characteristics of general high-molecular compounds, such as: large molecular weight, complex structure, etc. At the same time, it also has the function of fast water absorption and slow release of water retention. The chemical reaction, reaction mechanism and law of synthesizing superabsorbent resin are basically the same as the general polymer chemical reaction. Background technique [0002] The problem of water resources is an important problem that plagues the survival and development of all countries in the world. Especially in recent years, with the development of industrial and agricultural production, the phenomenon of water shortage has become more and more serious. Countries all o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/00C08F251/00
Inventor 苏忠民兰亚乾颜力楷
Owner NORTHEAST NORMAL UNIVERSITY
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