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Method for preparing degradable garbage bag with good mechanical performance

A garbage bag and performance technology, applied in the field of degradable garbage bag preparation, can solve the problems of unsustainable energy development, damage to soil permeability, and affect plant growth, etc., achieve good mechanical properties, improve the degree of agglomeration, and enhance soil vitality Effect

Inactive Publication Date: 2019-03-01
蚌埠尚岛宜家日用品科技工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nowadays, plastic bags are filled with every aspect of our life. Its existence does bring convenience to our life, but the convenience at this moment brings long-term harm.
Ordinary plastic bags will not rot and degrade after being buried in the ground for 200 years. A large amount of plastic bag waste is buried in the ground, which will destroy the permeability of the soil, make the soil harden, and affect the growth of plants.
Moreover, ordinary plastics are mostly made of petrochemical raw materials. The expansion application of plastics has led to the rapid exploitation of petroleum and the use of them to produce plastics. The non-renewable resources and the unsustainable development of energy soon lead to an "energy crisis".

Method used

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  • Method for preparing degradable garbage bag with good mechanical performance

Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] A method for preparing a degradable garbage bag with better mechanical properties, characterized in that it comprises the following steps:

[0019] (1) Take 5 parts by weight of fresh lotus leaves, wash them twice with clean water, place them at 40°C for 5 hours, then transfer them to a freeze-drying box, freeze-dry them for 6 hours, take them out, and grind them until they are granulated. diameter of 100 μm, then added to 10 times its volume of glacial acetic acid solution, boiled at 700 rpm for 10 minutes, filtered, then transferred to 10 times its volume of sodium hydroxide solution, sealed at 0.3 MPa for 4 hours, and then placed in Sonicate at 90°C for 20 minutes, filter, rinse with deionized water until neutral, and dry at 50°C;

[0020] (2) Add 4 parts of chitin fiber to 5 times its volume in deionized water, stir and dissolve at 70°C, then add the result of step (1), 2 parts of coupling agent, stir at 500rpm for 30min, then Put it into a freeze-drying box to fre...

Embodiment 2

[0029] A method for preparing a degradable garbage bag with better mechanical properties, characterized in that it comprises the following steps:

[0030] (1) Take 7 parts by weight of fresh lotus leaves, wash them with clean water for 3 times, place them at 42°C for 6 hours, then transfer them to a freeze-drying box, freeze-dry them for 7 hours, take them out, and grind them until they are granulated. diameter of 200 μm, then added to 15 times its volume of glacial acetic acid solution, boiled at 750rpm for 15 minutes, filtered, then transferred to 15 times its volume of sodium hydroxide solution, sealed at 0.32MPa for 5 hours, and then placed in Sonicate at 91°C for 25 minutes, filter, rinse with deionized water until neutral, and dry at 52°C;

[0031] (2) Add 5 parts of chitin fiber to 6 times its volume in deionized water, stir and dissolve at 71°C, then add the result of step (1), 3 parts of coupling agent, stir at 530rpm for 35min, then Put it into a freeze-drying box t...

Embodiment 3

[0040] A method for preparing a degradable garbage bag with better mechanical properties, characterized in that it comprises the following steps:

[0041] (1) Take 10 parts by weight of fresh lotus leaves, wash them three times with clean water, place them at 45°C for 7 hours, then transfer them to a freeze-drying box, freeze-dry them for 7 hours, take them out and grind them until they are granulated. diameter of 500 μm, then added to 20 times its volume of glacial acetic acid solution, boiled at 800 rpm for 20 min, filtered, then transferred to 20 times its volume of sodium hydroxide solution, sealed at 0.35 MPa for 5 hours, and then placed in Sonicate at 92°C for 30 minutes, filter, rinse with deionized water until neutral, and dry at 54°C;

[0042] (2) Add 6 parts of chitin fiber to 7 times its volume in deionized water, stir and dissolve at 72°C, then add the result of step (1), 3 parts of coupling agent, stir at 550rpm for 40min, then Put it into a freeze-drying box to ...

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Abstract

The invention discloses a method for preparing a degradable garbage bag with good mechanical performance. The prepared garbage bag has good mechanical and degradation properties, white pollution cannot be caused, polyethylene is not used, degradation products can be used as fertilizers to enhance the soil vitality, and friendly environment and sustainability are achieved; nano calcium carbonate ismodified through methacrylate, the agglomeration degree of the nano calcium carbonate is improved, consistency of the nano calcium carbonate with polylactic acid is improved, interface bonding forceof the nano calcium carbonate is enhanced, even distribution of the nano calcium carbonate is promoted, stress concentration points are reduced, and the mechanical performance of the garbage bag is improved; and meanwhile, a chitin fiber and a coupling agent are used for modifying lotus leaves, not only can the interface action between the lotus leaves and a substrate be improved, but also degradation performance of the garbage bag is improved, and thus the garbage bag has the good mechanical performance, and is environmentally friendly and easy to degrade.

Description

technical field [0001] The invention belongs to the technical field of garbage bag preparation, in particular to a method for preparing a degradable garbage bag with good mechanical properties. Background technique [0002] Nowadays, plastic bags are filled with every aspect of our lives. Its existence does bring convenience to our lives, but the convenience at this moment brings long-term harm. Ordinary plastic bags will not rot and degrade after being buried in the ground for 200 years. A large amount of plastic bag waste is buried in the ground, which will destroy the permeability of the soil, make the soil harden, and affect the growth of plants. Moreover, ordinary plastics are mostly made of petrochemical raw materials. The expansion of plastics has led to the rapid exploitation of petroleum and the use of them to produce plastics. The non-renewable resources and unsustainable development of energy soon lead to an "energy crisis." Contents of the invention [0003] I...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L99/00C08L5/08C08L83/04C08K9/04C08K3/26C08K5/1515
CPCC08L67/04C08K2003/265C08K2201/011C08L2201/06C08L2205/035C08L2205/16C08L99/00C08L5/08C08L83/04C08K9/04C08K3/26C08K5/1515
Inventor 袁志杰王丹
Owner 蚌埠尚岛宜家日用品科技工业有限公司
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