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Novel production process for preparing organic-inorganic composite water retaining agent

A technology of inorganic compounding and production process, applied in the direction of organic fertilizer, fertilizer mixture, application, etc., can solve the problems of refractory degradation and the incompatibility of the organic-inorganic interface of the water-retaining agent, and achieve the effect of preventing white pollution and improving the degree of tightness of the combination.

Active Publication Date: 2019-08-20
东北大学秦皇岛分校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention solves the problems of loose organic-inorganic interface of the water-retaining agent and difficult degradation after repeated use, prevents the water-retaining agent from becoming the next "white pollution", and improves the tightness of the organic-inorganic interface of the water-retaining agent and realizes repeated use. Significant in terms of degradation

Method used

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  • Novel production process for preparing organic-inorganic composite water retaining agent
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  • Novel production process for preparing organic-inorganic composite water retaining agent

Examples

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Effect test

Embodiment 1

[0043] Example 1, a new production process for preparing organic-inorganic composite water retaining agent, prepared according to the following method;

[0044] a. After mixing 9g of sodium hydroxide with 21g of deionized water, add it to 27g of acrylic acid in an ice-water bath to obtain product A;

[0045] b. Mix 2 g of titanium dioxide dispersion with 6 g of deionized water to obtain product B; the solid content of titanium dioxide in the titanium dioxide dispersion is 20%, and the particle size is 15 nm;

[0046] c. After mixing 9g of product A, 0.2g of product B and 1g of acrylamide, use deionized water to make up to 40ml and pour it into a quartz tube, and irradiate with 300W ultraviolet light for 35min under a nitrogen atmosphere to obtain a photopolymerization product, which is C Taste;

[0047] d. Mix 0.036g of N,N-methylenebisacrylamide, 0.24g of ammonium persulfate and 48g of deionized water to obtain product D;

[0048] e. Under a nitrogen atmosphere, mix 5 g of ...

Embodiment 2

[0050] Embodiment 2, a new production process for preparing an organic-inorganic composite water-retaining agent, is prepared according to the following method;

[0051] a. After mixing 9g of sodium hydroxide with 21g of deionized water, add it to 27g of acrylic acid in an ice-water bath to obtain product A;

[0052] b. Mix 2 g of titanium dioxide dispersion with 6 g of deionized water to obtain product B; the solid content of titanium dioxide in the titanium dioxide dispersion is 20%, and the particle size is 15 nm;

[0053] c. After mixing 9g of product A, 0.6g of product B and 1g of acrylamide, use deionized water to make up to 40ml and pour it into a quartz tube, and irradiate with 300W ultraviolet light for 35min under a nitrogen atmosphere to obtain a photopolymerization product, which is C Taste;

[0054] d. Mix 0.036g of N,N-methylenebisacrylamide, 0.24g of ammonium persulfate and 48g of deionized water to obtain product D;

[0055] e. Under a nitrogen atmosphere, mi...

Embodiment 3

[0057] Embodiment 3, a new production process for preparing organic-inorganic composite water retaining agent, prepared according to the following method;

[0058] a. After mixing 9g of sodium hydroxide with 21g of deionized water, add it to 27g of acrylic acid in an ice-water bath to obtain product A;

[0059] b. Mix 2 g of titanium dioxide dispersion with 6 g of deionized water to obtain product B; the solid content of titanium dioxide in the titanium dioxide dispersion is 20%, and the particle size is 15 nm;

[0060] c. After mixing 9g of product A, 1g of product B and 1g of acrylamide, use deionized water to make up to 40ml, pour it into a quartz tube, and irradiate it with 300W ultraviolet light for 35min under a nitrogen atmosphere to obtain a photopolymerization product, which is product C. ;

[0061] d. Mix 0.036g of N,N-methylenebisacrylamide, 0.24g of ammonium persulfate and 48g of deionized water to obtain product D;

[0062] e. Under a nitrogen atmosphere, mix 5 ...

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Abstract

The invention discloses a novel production process for preparing an organic-inorganic composite water retaining agent. The novel production process comprises the following steps: a, mixing sodium hydroxide with deionized water, and adding the obtained mixture into acrylic acid under the condition of an ice water bath so as to obtain a product A; b, mixing titanium dioxide dispersion with deionizedwater to obtain a product B; c, mixing the product A, the product B and acrylamide, pouring the obtained mixture into a quartz tube and carrying out ultraviolet irradiation in a nitrogen atmosphere to obtain a photopolymerization product, i.e., a product C; d, mixing N,N-methylenebisacrylamide, ammonium persulfate and deionized water to obtain a product D; e, mixing and heating the product C andthe D product in the nitrogen atmosphere to obtain a product e; and f, soaking the product e in alcohol and then carrying out drying so as to obtain a finished product. The novel production process inthe invention solves the problems that the organic-inorganic interface of a traditional water retaining agent is not tightly combined and the traditional water retaining agent is difficult to degradeafter repeated use, prevents the water retaining agent from becoming the next white pollutant, and is of great significance to the improvement of the combination of the organic-inorganic interface ofthe water retaining agent and to the realization of degradation of the water retaining agent after repeated use.

Description

technical field [0001] The invention relates to a water-retaining agent, in particular to a novel production process for preparing an organic-inorganic composite water-retaining agent. Background technique [0002] Land drought, soil erosion, desertification, sandstorms and other issues have increasingly become major ecological problems facing the world. Especially in water-shortage areas, agricultural production activities are greatly restricted, so solving soil drought resistance and water retention has become a research hotspot. [0003] Water-retaining agent is a kind of high-molecular compound, which can absorb hundreds or even thousands of times its own mass of water in a short period of time, and can release it slowly. It has excellent water absorption and water retention properties. has been widely applied. Although traditional water-retaining agents have excellent water-retaining properties, they have defects such as poor strength, residual monomers, and refractor...

Claims

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Application Information

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IPC IPC(8): C08F265/02C08F220/06C08F220/56C08F2/44C08F2/48C08K3/22C09K17/40C09K107/00
CPCC08F2/44C08F2/48C08F265/02C08K3/22C08K2003/2241C09K17/40C09K2107/00C08F220/06
Inventor 张煜垲高德宽王冠琦马源蒲泓沁吴正杰王海旺王柄筑
Owner 东北大学秦皇岛分校
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