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Degradable sludge-based seedling pot and preparation method thereof

A technology for raising seedlings and sludge, which is applied in the field of agricultural appliances, can solve the problems of high energy consumption, poor environmental friendliness and high preparation cost in the preparation process, and achieve the effects of shortening degradation time, improving mechanical properties and simple preparation method.

Inactive Publication Date: 2018-09-04
SICHUAN COLLEGE OF ARCHITECTURAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of transplanting, the seedling cultivation pot needs to be separated from the seedling cultivation pot, and there are technical problems such as damage to the seedling root system and the seedling cultivation pot is easy to disperse, which greatly affects the survival rate of the seedlings after transplanting
At present, the raw materials for the production of degradable seedling pots include mud, wood and degradable plastics, etc., but these degradable materials still have some problems: muddy seedling pots, slow degradation speed, high energy consumption in the preparation process, and poor environmental friendliness; The preparation cost of the pot is relatively high and there are few applications; degradable plastic seedling pots are cumbersome and costly; therefore, the materials used to prepare rapidly degradable seedling pots have become a new research hotspot
However, although the degradable seedling pots prepared from sludge in the existing relevant materials and patents also have degradable characteristics, due to the unreasonable formula or preparation method used, the degradation time of the seedling pots is longer and serious It limits the rapid growth and extension of the root system of plant seedlings, which affects the rapid growth of plants after transplanting

Method used

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  • Degradable sludge-based seedling pot and preparation method thereof
  • Degradable sludge-based seedling pot and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Dissolving and dispersing treatment: add 3 parts by weight of polyvinyl alcohol into 90 parts by weight of water, and dissolve completely at 95°C to prepare an aqueous solution of polyvinyl alcohol; at 75°C, add 8 parts by weight of After the gelatin is completely dissolved, add 8 parts by weight of dextrin and stir until it is evenly mixed to obtain a mixed solution; add 15 parts by weight of harmless treated sludge at 65°C, stir and disperse evenly to obtain a molding solution ;

[0031] 2. Molding treatment: Pour the molding liquid into the mold, water-cool to room temperature, and make the first embryo;

[0032] 3. Cross-linking treatment: react the primordial with epichlorohydrin at 55° C. for 6 hours; wash with anhydrous ether and deionized water after cross-linking to obtain a degradable sludge-based seedling pot.

Embodiment 2

[0034] 1. Dissolving and dispersing treatment: add 2 parts by weight of polyvinyl alcohol into 80 parts by weight of water, and dissolve completely at 90°C to prepare an aqueous solution of polyvinyl alcohol; at 80°C, add 5 parts by weight of After the gelatin is completely dissolved, add 10 parts by weight of dextrin and stir until it is evenly mixed to obtain a mixed solution; add 5 parts by weight of harmless treated sludge at 70°C, stir and disperse evenly to obtain a molding solution ;

[0035] 2. Molding treatment: Pour the molding liquid into the mold, water-cool to room temperature, and make the first embryo;

[0036] 3. Cross-linking treatment: the first embryo was cross-linked with formaldehyde at 60° C. for 5 hours; after the cross-linking was completed, it was washed with absolute ethanol and deionized water to obtain a degradable sludge-based seedling pot.

Embodiment 3

[0038] 1. Dissolving and dispersing treatment: add 5 parts by weight of polyvinyl alcohol into 100 parts by weight of water, and dissolve completely at 100°C to prepare an aqueous solution of polyvinyl alcohol; at 70°C, add 10 parts by weight of After the gelatin is completely dissolved, add 5 parts by weight of dextrin and stir until it is evenly mixed to obtain a mixed solution; add 20 parts by weight of harmless treated sludge at 60°C, stir and disperse evenly to obtain a molding solution ;

[0039] 2. Molding treatment: Pour the molding liquid into the mold, water-cool to room temperature, and make the first embryo;

[0040] 3. Cross-linking treatment: react the primordial embryo with acetaldehyde at 50° C. for 5-8 hours; wash with absolute ethanol and deionized water after cross-linking to obtain a degradable sludge-based seedling pot.

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Abstract

The invention relates to a degradable sludge-based seedling pot and a preparation method thereof. The seedling pot is prepared from, by weight, 2-5 parts of polyvinyl alcohol, 80-100 parts of water, 5-10 parts of gelatin, 5-10 parts of dextrin, 5-20 parts of sludge and 0.5-1 part of cross-linking agent. In the preparation process of the seedling pot, the forming treatment is conducted before the cross-linking treatment. The seedling pot has high mechanical properties and can meet the requirements of use performance of the seedling pot in seedling cultivation; the seedling pot can also be rapidly degraded in soil, so that the rapid growth and extension of plant roots after transplanting or planting are not limited, which has a positive effect in improvement of the survival rate of seedlingsand the growth rate of plants.

Description

technical field [0001] The invention relates to the field of agricultural implements, in particular to a degradable sludge-based seedling pot and a preparation method thereof. Background technique [0002] Seedling pots are mostly used in agricultural seedling raising, breeding, greenhouse planting, landscaping and other fields. They are widely used and in great demand. In the actual seedling raising process, transplanting is a very important step. It is necessary to take out the seedlings and nutrient pots in the seedling pots and plant them in large fields or large flowerpots to continue to grow. During the transplanting process, the seedling cultivation pot needs to be separated from the seedling cultivation pot, and there are technical problems such as damage to the seedling root system and the seedling cultivation pot body is easy to disperse, which greatly affects the survival rate of the seedlings after transplanting. At present, the raw materials for the production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/029A01G24/00
CPCA01G9/0291A01G24/00
Inventor 郭娜颜子博彭丽
Owner SICHUAN COLLEGE OF ARCHITECTURAL TECH
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