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Paper-based degradable nutrition bowl and preparation method

A nutrient bowl and paper-based technology, applied in botany equipment and methods, culture medium, planting substrate, etc., can solve the problems of complex nutrient bowl preparation, waste environmental pollution, high cost of raw materials, etc., and achieve easy industrial production and large-scale The effects of popularization and application, increasing straw plasticity and shortening processing time

Inactive Publication Date: 2017-03-15
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to invent a paper-based degradable nutritional bowl and its Its preparation method can meet the needs of seedling cultivation such as heat preservation, moisture conservation, and degradability, and can solve the environmental pollution problem of waste at the same time

Method used

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  • Paper-based degradable nutrition bowl and preparation method
  • Paper-based degradable nutrition bowl and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Crush the rice straw to 60 mesh and set aside; mix 10kg of paper and 190kg of water, the pulp concentration is 5%, stir for 10min at room temperature, the speed is 40 / min, and then stand for 60min; add 1.1g of rice straw powder, no binder , stirred at room temperature for 5 minutes, and the rotation speed was 40 / min; the raw material slurry was sucked into a pulp molding machine and pressed into shape; demolded and naturally dried for 2 days, the paper-based degradable nutritional bowl was obtained.

[0041] After testing, the paper-based degradable nutrition bowl has a tensile strength of 2.856MPa, an elongation at break of 4.176%, a water absorption rate of 280%, and a degradation rate of 100% within 126 days.

Embodiment 2

[0043] Crush the corn stalks to 70 mesh and set aside; mix 8 kg of paper and 135 kg of water, the pulp concentration is 5.6%, stir for 10 minutes at room temperature, rotate at a speed of 50 r / min, then let stand for 65 minutes; add 2.1 kg of corn stalk powder, 0.01 kg of starch, Stir at room temperature for 6 minutes at a speed of 50 r / min; suck the raw material slurry into a pulp molding machine and press it into a molding machine; remove the mold and place it in a blast oven, and dry it at 20°C for 180 minutes to obtain a paper-based degradable nutritional bowl.

[0044] After testing, the paper-based degradable nutrition bowl has a tensile strength of 5.863 MPa, an elongation at break of 3.225%, a water absorption rate of 285%, and a degradation rate of 100% in 119 days.

Embodiment 3

[0046] Crush the corn stalks to 80 mesh and set aside; mix 12kg of paper and 181kg of water, the pulp concentration is 6.2%, stir for 12min at room temperature, the speed is 50r / min, and then stand for 70min; add 5.2kg of corn stalk powder, 0.03kg of gelatin, Stir at room temperature for 6 minutes at a speed of 50 r / min; suck the raw material slurry into a pulp molding machine and press it into a molding machine; demold it and place it in a blast oven, and dry it at 30°C for 160 minutes to obtain a paper-based degradable nutritional bowl.

[0047] After testing, the paper-based degradable nutrition bowl has a tensile strength of 7.303 MPa, an elongation at break of 5.083%, a water absorption rate of 310%, and a degradation rate of 100% within 98 days.

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Abstract

The invention discloses a paper-based degradable nutrition bowl and a preparation method thereof. The paper-based degradable nutrition bowl is prepared from, by dry mass, 20-90% of paper, 0-0.5% of adhesive and the balance crop straw. The preparation method includes the steps that the crop straw is smashed to reach the mesh number of 60-100; the paper is soaked in water, wherein the paper accounts for 5-8% of the total mass of the paper and the water; stirring is conducted for 10-15 min at the normal temperature, and standing is conducted to make paper pulp; the straw powder and the adhesive are added in proportion, and mixing and stirring are conducted for 5-8 min at the normal temperature; the raw material pulp is sucked into a paper pulp molding forming machine for compression forming; after demoulding, the formed product is naturally aired for 2-5 days or put into an air-blast drying oven to be dried, and the finished product paper-based degradable nutrition bowl can be obtained. The nutrition bowl is light, simple in process, capable of meeting the seedling culture requirements of heat preservation, soil moisture preservation, degradability and the like and capable of solving the problem of environmental pollution caused by waste, pollution is hardly caused in the production process, and industrial production and large-scale application and popularization are easy.

Description

technical field [0001] The invention belongs to the technical field of novel agricultural degradable materials, in particular to a preparation method of a business bowl, specifically a degradable nutrition bowl with paper and straw fiber as main preparation materials and a preparation method thereof. Background technique [0002] Most of my country's agriculture uses traditional plastic nutrition bowls. Although the cost is low, the air permeability is poor, and the root system is damaged by the transplanting and defilming, which affects the growth of crops. At the same time, a large amount of plastic waste has a serious impact on the soil. It cannot be degraded naturally. Therefore, it is necessary to develop a biodegradable nutritional bowl, which not only plays the role of keeping seedlings warm, retaining moisture, and preserving fertilizer, but also has excellent biodegradability, water melting, and air permeability. The use of bio-based materials to prepare degradable n...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L3/02C08L89/00C08K3/34A01G9/10
CPCC08L97/02A01G9/0291A01G24/60C08L2201/06C08L2205/025C08L2205/03C08L3/02C08L89/00C08K3/34
Inventor 蒋希芝赵永富徐磊王合叶
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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