A kind of biodegradable material and its preparation method and application

A technology of polylactic acid and seedling container, which is applied in application, cultivation, agriculture, etc., can solve the problems of high cost, slow degradation time, and incomplete degradation of seedling container, and achieve the effect of low cost, simple product and good flexibility

Active Publication Date: 2017-08-15
陈再荣 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For this reason, the technical problem to be solved by the present invention is that the existing seedling-growing containers have high cost, limited application, incomplete degradation, slow degradation time, heavy pollution, etc., and a kind of biodegradable material and its preparation method are provided and used in the preparation of seedling-growing containers Uses in

Method used

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  • A kind of biodegradable material and its preparation method and application
  • A kind of biodegradable material and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0039] The biodegradable material described in this embodiment is made of the following components: polylactic acid 60kg, starch 14kg, PBAT 10kg, talcum powder 5kg, carboxymethyl cellulose 5kg, polycaprolactone 2kg, sorbitol 1.5kg, tributyl citrate Esters 5kg, 2,2-methylene bis(4-methyl-6-tert-butylphenol) 0.4kg, carbodiamine 0.5kg, styrene-methyl methacrylate-glycidyl methacrylate tri 0.5kg meta-copolymer, 0.5kg stearic acid, 0.5kg erucic acid, 0.5kg epoxy soybean oil, 0.3kg calcium stearate.

[0040] The preparation method of the biodegradable seedling raising container of this embodiment includes the following steps: adding starch and talcum powder to a high-speed mixer for mixing, the running time is 10 minutes, the speed of the high-speed mixer is 280 rpm, and the temperature inside the machine is 95°C; Put the mixture of talcum powder and starch into the cooling mixer. The speed of the cooling mixer is 300 rpm to cool the material below 40°C, and add polylactic acid, PBA...

Embodiment 2

[0043] The biodegradable material described in this embodiment is made of the following components: polylactic acid 50kg, tapioca starch 14kg, PBAT 15kg, talcum powder 10kg, carboxymethyl cellulose 5kg, polycaprolactone 2kg, sorbitol 1.5kg, tricitric acid Butyl ester 4.5kg, 2,2-methylenebis(4-methyl-6-tert-butylphenol) 0.6kg, styrene-glycidyl methacrylate copolymer 0.5kg, carbodiamine 0.5kg, Stearic acid 0.5kg, oleic acid 0.6kg, epoxy soybean oil 0.5kg, calcium stearate 0.3kg.

[0044] The preparation method of the biodegradable seedling raising container of this embodiment includes the following steps: adding starch and talcum powder to a high-speed mixer for mixing, the running time is 20 minutes, the speed of the high-speed mixer is 320 rpm, and the temperature inside the machine is 120°C; Put the talcum powder and starch into the cooling mixer, the speed of the cooling mixer is 600 rpm to cool the material below 40°C, add polylactic acid, PBAT and various additives, and ad...

Embodiment 3

[0047] The biodegradable material described in this embodiment is made of the following components: polylactic acid 45kg, cornstarch 5kg, PBAT 20kg, calcium carbonate 26kg, carboxymethyl cellulose 9kg, polycaprolactone 2kg, triacetin 3kg, 2, 2-methylenebis(4-methyl-6-tert-butylphenol) 0.9kg, styrene-glycidyl methacrylate copolymer 0.5kg, carbodiamine 0.5kg, epoxy compound 2kg, stearin Acid 0.5kg, ethylene bis stearic acid amide 0.5kg, epoxy soybean oil 0.5kg, calcium stearate 0.3kg.

[0048] The preparation method of the biodegradable seedling raising container of this embodiment includes the following steps: adding starch and talcum powder to a high-speed mixer for mixing, the running time is 15 minutes, the speed of the high-speed mixer is 300 rpm, and the temperature inside the machine is 105°C; Put the talcum powder and starch into the cooling mixer, the speed of the cooling mixer is 450 rpm to cool the material below 40°C, add polylactic acid, PBAT and various additives, ...

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Abstract

The invention belongs to the high-molecular material field, and concretely relates to a biodegradable material, a preparation method and an application used for preparing a container for plant growth. The biodegradable material is prepared from polylactic acid, inorganic powder, starch, PBAT, carboxymethyl cellulose, polycaprolactone and auxiliary agents. The prepared container for plant growth has characteristics of water resistance, oil resistance, leakage resistance, high shock resistance, high rigidness and good flexibility. The biodegradable material can resist a high temperature of more than 50 DEG C and can resist a low temperature of below -15 DEG C. The biodegradability of the biodegradable material is better than present starch and plastic materials and non-woven fabric materials, and the biodegradable material is an ideal substitute of a traditional plastic or paper-based container for plant growth.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a biodegradable material, its preparation method and its use in preparing seedling raising containers. Background technique [0002] With the rapid development of the plastic industry, plastic seedling containers are also widely used. While it brings great convenience to agriculture, forestry, and flower seedling scale, it also brings serious white pollution to nature and makes the living environment of human beings worse. face a severe test. Traditional plastic seedling containers cannot be biodegraded after use, so they can only be disposed of by incineration. The toxic gases produced by incineration cause serious pollution to the air and the environment. With the increasing awareness of green environmental protection in the world, people began to regulate the use of plastic products, and countries around the world have also introduced relevant "plastic limit" regu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08L67/02C08L3/02C08L1/26C08K13/02C08K3/34C08K3/26C08K5/053C08K5/09C08K5/1515B29B9/06B29C47/92A01G9/10B29C48/92
Inventor 陈再荣邓铁军
Owner 陈再荣
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