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Slow-release oxidizing agent with calcium peroxide as matrix and epoxy resin as envelopes and preparation method

A calcium peroxide, epoxy resin technology, applied in chemical instruments and methods, other chemical processes, organic fertilizers, etc., can solve the problems of short oxygen release time, unable to meet the demand for oxygen, etc., and achieve extended oxygen release time, The effect of solving the problem of oxygen release time and simple processing technology

Inactive Publication Date: 2016-08-24
INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the release time of calcium peroxide in the gleization paddy field is short, which cannot meet the demand for oxygen in the middle and late stages of rice growth.

Method used

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  • Slow-release oxidizing agent with calcium peroxide as matrix and epoxy resin as envelopes and preparation method
  • Slow-release oxidizing agent with calcium peroxide as matrix and epoxy resin as envelopes and preparation method
  • Slow-release oxidizing agent with calcium peroxide as matrix and epoxy resin as envelopes and preparation method

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Experimental program
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Effect test

Embodiment 1

[0044] A kind of slow-release oxidizer that takes calcium peroxide as matrix epoxy resin is coating, and it is made of the raw material (best value) of following weight part:

[0045]

[0046] A kind of preparation method that takes calcium peroxide as matrix epoxy resin as the slow-release oxidant of coating, its steps are:

[0047] A.60% calcium peroxide raw powder granulation:

[0048] ①Granulation: Adjust the inclination angle of the disk granulator to 60°, the speed to 30r / min, and the heating device to 40-50°C; take 1kg of calcium peroxide raw powder and divide it into 10 equal parts. Take a portion and put it in a disc, quickly use water mist to moisten it and form small particles, the particle size is about 0.5mm, take it out for use, repeat the above steps 5 or 7 or 10 or 15 or 20 times, until 10 parts of powder All the materials are granulated.

[0049] ②Granulation: adjust the inclination angle of the disc granulator to 60°, adjust the speed to 30r / min, adjust ...

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Abstract

The invention discloses a slow-release oxidizing agent with calcium peroxide as a matrix and epoxy resin as envelopes and a preparation method. The slow-release oxidizing agent is prepared from 60% calcium peroxide, an adhesive, attapulgite, E-51 epoxy resin, polyether amine D230 and talc powder in certain proportion in steps as follows: A, 60% calcium peroxide is mixed uniformly with the adhesive and the attapulgite to be granulated; B, E-51 epoxy resin is added in proportion according to the mass of granules, polyether amine D230 is added in proportion according to the amount of E-51 epoxy resin, the talc powder is added in proportion according to the total amount of E-51 epoxy resin and polyether amine D230, granules in the step A are enveloped with the raw materials in B, and the slow-release oxidizing agent is prepared after drying. The formula is reasonable, the method is easy to implement, operation is simple, the problem about the oxygen release time of calcium peroxide in a gleization rice field can be effectively solved, the rice growing environment of the gleization rice field is improved, and the slow-release agent is unparalleled to common oxidizing agents in improvement of acidic gleization rice soil in the southern area and has wide raw material sources and broad popularization and application prospect.

Description

technical field [0001] The invention belongs to the fields of agricultural ecology, soil improvement and plant nutrition control, and more specifically relates to a slow-release oxidant with calcium peroxide as the matrix and epoxy resin as the coating, and also relates to a calcium peroxide as the matrix. The invention relates to a method for preparing slow-release oxidant coated with epoxy resin. The slow-release oxidant can effectively reduce toxic reducing substances in gleization paddy fields, and can supply oxygen to paddy rice. The rice growth environment of the cultivated paddy field, and the prepared slow-release oxidant is suitable for the improvement of the gleized paddy field when the rice is planted in the vast glebed rice areas. Background technique [0002] The gleogenic paddy field is the most common low-yielding field in southern my country, widely distributed in the plain lake area and hilly ridges, accounting for about 1 / 3 of the southern paddy field area,...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K101/00C09K109/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 董春华罗尊长苏以荣褚飞李万民陈香碧胡亚军洪曦
Owner INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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