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Fully-degradable ratproof garbage bag and preparation method thereof

A fully degradable, garbage bag technology, applied in the field of polymer materials, can solve the problems of edible biological damage, secondary pollution, white pollution of non-degradable garbage bags, etc., to reduce material costs, increase interface bonding, maintain The effect of total biodegradability

Active Publication Date: 2012-01-04
WUHAN HUALI ENVIRONMENTAL PROTECTION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a fully degradable rodent-proof garbage bag and its preparation method, which solves the problem of white pollution caused by non-degradable garbage bags and solves the edible biological damage caused by rodents to garbage bags. cause secondary pollution

Method used

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  • Fully-degradable ratproof garbage bag and preparation method thereof
  • Fully-degradable ratproof garbage bag and preparation method thereof
  • Fully-degradable ratproof garbage bag and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 30 parts by mass of polyterephthalic acid / adipate / butylene glycol, 10 parts by mass of polylactic acid, 30 parts by mass of cornstarch, 10 parts by mass of glycerin, 2 parts by mass of BASF chain extender JONCRYL ADR-4368, 8 Parts by mass of nonanoyl vanillyl amide and 10 parts by mass of light calcium carbonate are mixed uniformly in a high-speed mixer, and then the mixture is mixed in a twin-screw extruder, and the temperature of each section of the twin-screw extruder is set to T 1 =150°C, T 2 =160°C, T 3 =180°C, T 4 =200°C, T 5 =205°C, T 6 =210°C, twin-screw extruder speed R=300r·min -1 ; After that, extrude, cool, and granulate to obtain the bio-based material for the fully degradable rat-proof garbage bag; and then cooperate with the color masterbatch to obtain the fully-degradable rat-proof garbage bag through secondary processing, and its performance is as follows:

[0041]

Embodiment 2

[0043] 60 parts by mass of polyterephthalic acid / adipate / butylene glycol, 10 parts by mass of polylactic acid, 10 parts by mass of tapioca starch, 5 parts by mass of ethylene glycol, 10 parts by mass of decanoyl vanillyl amide and 5 parts by mass of talcum powder Mix evenly in a high-speed mixer, then knead the mixture in a twin-screw extruder, and set the temperature of each section of the twin-screw extruder to T 1 =155°C, T 2 =165°C, T 3 =185°C, T 4 =205°C, T 5 =215°C, T 6 = 220°C, twin-screw extruder speed R = 300r·min -1 ; After that, extrude, cool, and granulate to obtain the bio-based material for the fully degradable rat-proof garbage bag; and then cooperate with the color masterbatch to obtain the fully-degradable rat-proof garbage bag through secondary processing, and its performance is as follows:

[0044]

Embodiment 3

[0046]30 parts by mass of polyterephthalic acid / adipate / butylene glycol, 30 parts by mass of polylactic acid, 10 parts by mass of cornstarch, 5 parts by mass of propylene glycol, 5 parts by mass of octanoyl vanillyl amide and 20 parts by mass of light calcium carbonate Mix evenly in a high-speed mixer, then knead the mixture in a twin-screw extruder, and set the temperature of each section of the twin-screw extruder to T 1 =145°C, T 2 =155°C, T 3 =165°C, T 4 =180°C, T 5 =195°C, T 6 = 205°C, twin-screw extruder speed R = 300r·min -1 ; After that, extrude, cool, and granulate to obtain the bio-based material for the fully degradable rat-proof garbage bag; and then cooperate with the color masterbatch to obtain the fully-degradable rat-proof garbage bag through secondary processing, and its performance is as follows:

[0047]

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Abstract

The invention relates to a fully-degradable ratproof garbage bag and a preparation method thereof. The fully-degradable ratproof garbage bag comprises the following components by weight percent: 30-60% of poly(butylene adipate / terephthalate), 10-30% of polylactic acid, 10-30% of starch, 5-10% of plasticizer, 0-2% of chain extender, 5-20% of filler, 5-10% of ratproof repellent and 0.5-2% of color masterbatch. The preparation method comprises the following steps: firstly, preparing poly(butylene adipate / terephthalate), starch, polylactic acid, the plasticizer, the chain extender, the ratproof repellent and the filler into a biological material for the fully-degradable ratproof garbage bag according to a specific production process; and then carrying out secondary processing on the biological material matched with the color masterbatch so as to obtain the fully-degradable ratproof garbage bag. According to the invention, thermoplastic starch is adopted to fill poly(butylene adipate / terephthalate) and polylactic acid, so that the thermoplastic starch is evenly dispersed into a substrate of a resin mixture, thus the fully-biodegradable property of the material is maintained while the cost of the material lowered.

Description

technical field [0001] The invention relates to a fully degradable rodent-proof garbage bag and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] With the improvement of people's living standards, the concept of garbage bagging has gradually entered people's lives in recent years. Compared with the traditional garbage disposal method, the garbage bag treatment avoids garbage exposure and leakage during transportation, can effectively control the garbage landing, reduce dust in the air, eliminate the breeding grounds of mosquitoes, flies and mice, reduce the spread of various germs, and thoroughly It solves the problem of easy blockage of garbage passages in residential buildings and the odor of garbage after corruption, facilitates the classification and collection of garbage, and finally achieves harmless, resourceful, and reduced treatment of garbage, and is increasingly favored by people. However, most of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08L3/02C08K13/02B29B9/06
Inventor 危伟张立斌白娟潘丽娟
Owner WUHAN HUALI ENVIRONMENTAL PROTECTION IND CO LTD
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