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Environment-friendly vegetable protein based efficient water and fertilizer slow/controlled-release material

A technology of controlled release material and vegetable protein, which is applied in the field of plant protein-based high-efficiency water and fertilizer slow and controlled release materials, can solve the problems of poor slow and controlled release effect, high price, environmental pollution, etc., achieve excellent slow and controlled release characteristics, improve The effect of water and fertilizer utilization

Inactive Publication Date: 2014-08-27
XINJIANG HUIER AGRI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the slow and controlled release effect of the existing slow and controlled release materials is not good, pollutes the environment, and the price is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: Preparation of thermoplastic vegetable protein

[0026] Crush one or more of soybean meal, peanut meal, rapeseed meal, cottonseed meal, sunflower meal, tea seed meal, rice bran, bran (vegetable protein raw material) after impurity removal, and add 10 times the weight of vegetable protein NaOH solution with a pH of 8.0, treated at 50°C for 1 hour, filtered, centrifuged, and insoluble impurities removed, the filtrate was adjusted to pH 4.5 with sulfuric acid to cause protein coagulation and precipitation, separated, washed, and neutralized to obtain plant purified protein; plant purified Add urea buffer solution 30 times the weight of protein and plant purified protein into the reaction kettle, stir at 60°C for 30 min under the condition of blowing nitrogen, then add mercaptoethanol equivalent to the weight of plant purified protein to react for 1 hour, and the protein molecules are fully dissolved in the solution Stretch, then add initiator and graftin...

Embodiment 2

[0028] Get 30 parts of thermoplastic vegetable proteins prepared by Example 1, 60 parts of ethylene / vinyl acetate copolymers (EVA), 7 parts of undecenyl succinic anhydride, 5 parts of benzoyl peroxide, 5 parts of sodium carbonate, 5 parts of paraffin wax were mixed in a high-speed mixer for 30 min, then melt-blended and extruded in a twin-screw extruder with a melt-blending temperature of 110°C, a die temperature of 120°C, and a screw speed of 20 rpm; Cooling in air, granulation and coarse crushing to prepare the high-efficiency water and fertilizer slow-controlled release material of the present invention, wherein the water and fertilizer refer to water-soluble chemical fertilizers.

Embodiment 3

[0030]Get 60 parts of thermoplastic vegetable proteins prepared in Example 1, 40 parts of ethylene / ethyl acrylate copolymer (EEA), 6 parts of dodecenyl succinate, 3 parts of lauroyl peroxide, 3 parts of sodium bicarbonate by weight. 3 parts of stearic acid and 3 parts of stearic acid were mixed in a high-speed mixer for 25 min, melt blended and extruded in a twin-screw extruder with a melt blending temperature of 120 ° C, a die temperature of 130 ° C, and a screw speed of 30 rpm ; Cooling in natural air, granulation, coarse crushing to prepare the high-efficiency water and fertilizer slow-controlled release material of the present invention.

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PUM

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Abstract

The invention provides an environment-friendly vegetable protein based efficient water and fertilizer slow / controlled-release material. The slow / controlled-release material is prepared from the following components in parts by mass: 30-80 parts of thermoplastic vegetable proteins, 20-60 parts of resin, 5-7 parts of graft modification substances, 1-5 parts of initiator, 2-5 parts of foaming agent and 2-5 parts of lubricating agent. A slow / controlled-release fertilizer prepared on the basis of the slow / controlled-release material provided by the invention has the initial nutrient release rate of less than 13.0% after being soaked in 25-DEG C static water for 24h, the accumulated nutrient release rate of less than 78.0% within 28d and the accumulated release rate of more than 92.6% within the nutrient release period. The effective utilization ratio of nutrients in the fertilizer is increased by more than 35.9%, so that the usage amount and fertilization times of the fertilizer can be greatly reduced, the effective utilization rate of the fertilizer can be increased, and the ecological environment destruction caused by the fertilizer can be effectively relieved.

Description

technical field [0001] The invention belongs to the technical field of chemical fertilizers, and in particular relates to an environmentally friendly plant protein-based high-efficiency water and fertilizer slow-controlled release material. Background technique [0002] The application of chemical fertilizers has made a huge contribution to world food production. Since the 20th century, the production and consumption of chemical fertilizers in the world have maintained continuous growth. According to statistics from the Food and Agriculture Organization of the United Nations (FAO), from the 1960s to the 1990s, the increase in the application of chemical fertilizers accounted for 40% to 60% of the factors that increased agricultural production. This undoubtedly eased the pressure on resources brought about by the world's population explosion. However, the introduction of chemical fertilizers as exogenous substances has caused corresponding changes in the agricultural ecosyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 李保强
Owner XINJIANG HUIER AGRI GRP CO LTD
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