Water-soluble porous completely biodegradable composite material for preparing seedling container, preparation method and seedling container based on same

A seedling raising container and biodegradation technology, applied in the field of water-soluble porosity fully biodegradable composite materials and their preparation, can solve the problems of restricted root development, slow degradation rate of biodegradable resin, etc., so as to improve production and cultivation effect and production efficiency High, maneuverable effect

Active Publication Date: 2019-03-15
GUANGDONG ACAD OF SCI INST OF BIOENGINEERING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The degradation rate of biodegradable resins (PLA, PBAT) is relatively slow in the natural soil environment. In the actual seedling cultivation process of the seedling pots with biodegradable r

Method used

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  • Water-soluble porous completely biodegradable composite material for preparing seedling container, preparation method and seedling container based on same

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Materials: 300 parts by mass of PBAT (BASF Ecoflex), 150 parts by mass of PLA (NatureWorks 4032D), 200 parts by mass of thermoplastic starch (Wuhan Huali Environmental Technology Co., Ltd.), 200 parts by mass of KH550 modified bagasse, potassium nitrate (Tianjin Damao Chemical Reagent Company) 50 mass parts, thermoplastic polyvinyl alcohol (Weifang Huawei New Material Technology Co., Ltd.) 50 mass parts, antioxidant 1010 (Germany BASF) 10 mass parts, stearic acid (Tianjin Damao Chemical Reagent Company) 10 parts by mass, 10 parts by mass of CBT (Wuhan Hyperbranched Resin Co., Ltd.), 20 parts by mass of talcum powder (Guangzhou Huajun Talc Powder Co., Ltd.).

[0036] Premix: (1) Put thermoplastic starch and modified bagasse into a high-speed mixer and mix for 5 minutes at 200r / min; (2) Mix potassium nitrate, thermoplastic polyvinyl alcohol, antioxidant 1010, stearin Acid, CBT, and talcum powder are mixed slightly first, and then slowly added to the premix in step (1) tha...

Embodiment 2

[0040]Materials: 200 parts by mass of PBAT (BASF Ecoflex), 50 parts by mass of PLA (NatureWorks 4032D), 300 parts by mass of thermoplastic starch (Wuhan Huali Environmental Protection Technology Co., Ltd.), 300 parts by mass of KH550 modified bagasse (self-made), potassium nitrate (Tianjin Damao Chemical Reagent Company) 50 mass parts, thermoplastic polyvinyl alcohol (Weifang Huawei New Material Technology Co., Ltd.) 50 mass parts, antioxidant 1010 (Germany BASF) 10 mass parts, calcium stearate (Tianjin Damao Chemical Reagent Company) 20 parts by mass, CBT (Wuhan Hyperbranched Resin Co., Ltd.) 10 parts by mass, white carbon black (Guangzhou Huajun Talc Powder Co., Ltd.) 10 parts by mass.

[0041] Premix: (1) Put thermoplastic starch and modified bagasse into a high-speed mixer and mix for 5 minutes at 200r / min; (2) Mix thermoplastic polyvinyl alcohol, potassium nitrate, antioxidant 1010, stearin Calcium acid, CBT, and white carbon black are mixed slightly first, and then slowl...

Embodiment 3

[0045] Materials: 200 parts by mass of PBAT (BASF Ecoflex), 50 parts by mass of PLA (NatureWorks 4032D), 300 parts by mass of thermoplastic starch (Wuhan Huali Environmental Protection Technology Co., Ltd.), 300 parts by mass of KH550 modified bagasse (self-made), potassium nitrate (Tianjin Damao Chemical Reagent Company) 80 mass parts, thermoplastic polyvinyl alcohol (Weifang Huawei New Material Technology Co., Ltd.) 20 mass parts, antioxidant 1010 (Germany BASF) 10 mass parts, calcium stearate (Tianjin Damao Chemical Reagent Company) 20 parts by mass, CBT (Wuhan Hyperbranched Resin Co., Ltd.) 10 parts by mass, white carbon black (Guangzhou Huajun Talc Powder Co., Ltd.) 10 parts by mass.

[0046] Premix: (1) Put thermoplastic starch and modified bagasse into a high-speed mixer and mix for 5 minutes at 200r / min; (2) Mix thermoplastic polyvinyl alcohol, potassium nitrate, antioxidant 1010, stearin Calcium acid, CBT, and white carbon black are mixed slightly first, and then slow...

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Abstract

The invention belongs to the technical field of biodegradable materials, and discloses a water-soluble porous completely biodegradable composite material for preparing a seedling container and a preparation method thereof, and a seedling container. The composite material is composed of the following components in percentage by weight: 10-50% of polybutylene adipate terephthalate copolymer, 5-20% of polylactic acid, 20-50% of thermoplastic starch, 20-50% of modified bagasse, 1-15% of a water-soluble pore-foaming agent, and 0-5% of other auxiliaries; the modified bagasse is baggage modified witha modifier, the modifier is at least one of gamma-aminopropyltriethoxysilane, gamma-glycidyloxypropyltrimethoxysilane and maleic anhydride, and the amount of the modifier is 0.5-2% of the mass of thebagasse. The invention also provides a seedling container based on the composite material, which can be applied to seedlings of flowers, Chinese medicinal materials, fruits, vegetables, and the like,and effectively improves the production and cultivation effects of crops.

Description

technical field [0001] The invention belongs to the technical field of biodegradable materials, and in particular relates to a water-soluble porosity fully biodegradable composite material used for preparing seedling-raising containers, a preparation method thereof, and a seedling-raising container. Background technique [0002] In recent years, with the enhancement of human awareness of environmental protection, the problem of "white pollution" caused by random discarding of non-degradable plastics has attracted more and more attention. In the field of agricultural plastics, "white pollution" is mainly produced by polyethylene mulch film after the function is completed, black seedling pots after the function of raising seedlings, and pesticide packaging containers (plastic bags and plastic bottles). Agricultural plastics that are not recycled in time will not only cause visual pollution, but more seriously will reduce soil quality, cause soil compaction, and ultimately affe...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L67/04C08L97/02C08L3/02C08K13/02C08K3/34C08K3/36C08J9/26
CPCC08J9/26C08J2201/0444C08J2367/02C08J2403/02C08J2467/04C08J2497/02C08L67/02C08L2201/06C08L2205/02C08L2205/035C08L2205/16C08L67/04C08L97/02C08L3/02C08K13/02C08K3/34C08K3/36
Inventor 沈华艳陈骏佳谢东李发勇黄瑶珠张会平刘海露
Owner GUANGDONG ACAD OF SCI INST OF BIOENGINEERING
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