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Compost-type degradable garbage bag thin film material and manufacturing method thereof

A technology of film material and degradable material, which is applied in the field of compostable degradable garbage bag film material and its preparation field, can solve problems such as being difficult to degrade, and achieve the effects of reducing garbage volume, improving use efficiency, and accelerating garbage decomposition.

Inactive Publication Date: 2018-12-14
北京国瑞新源投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of existing garbage bags, the present invention provides a compostable degradable garbage bag film material and its preparation method, which solves the problem that garbage bags and garbage in garbage bags are not easy to degrade in landfills

Method used

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  • Compost-type degradable garbage bag thin film material and manufacturing method thereof
  • Compost-type degradable garbage bag thin film material and manufacturing method thereof
  • Compost-type degradable garbage bag thin film material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (I) Compostable degradable material formula (kg):

[0025] Iron oxide (through a 1000-mesh sieve, the sieve is 5%, and the undersieve is passed through a 1350-mesh sieve, the sieve is 20%): 5

[0026] Triethanolamine borate: 0

[0027] Linear Low Density Polyethylene: 95

[0028] (II) Preparation of compostable degradable materials:

[0029] The first step: Put the weighed iron oxide, triethanolamine borate and linear low density polyethylene into the heating mixer for mixing. The speed of the heating mixer is 800rpm, and the stirring temperature is 50~60 o C, the stirring time is 8min.

[0030] The second step: the mixture is granulated in a twin-screw extrusion granulator to prepare compostable degradable materials. The screw length-to-diameter ratio L / D of the twin-screw extrusion granulator is 40, and the temperature in the granulation stage is 165°C~175°C.

[0031] (III) Compostable garbage bag film material formula (kg):

[0032] Compostable Degradable Mater...

Embodiment 2

[0039] (I) Compostable degradable material formula (kg):

[0040] Iron oxide (through a 800-mesh sieve, the sieve is 5%, and then the undersieve is passed through a 1000-mesh sieve, the sieve is 10%): 20

[0041] Methyltriethoxysilane: 0.3

[0042] Linear Low Density Polyethylene: 79.7

[0043] (II) Preparation of compostable degradable materials:

[0044] The first step: Put the weighed iron oxide, methyltriethoxysilane and linear low density polyethylene into a high-speed heating mixer for mixing. The speed of the heating mixer is 900rpm, and the stirring temperature is 50~60 o C, the stirring time is 9min.

[0045] The second step: the mixture is granulated in a twin-screw extrusion granulator to prepare compostable degradable materials. The screw length-to-diameter ratio L / D of the twin-screw extrusion granulator is 45, and the temperature in the granulation stage is 175°C~185°C.

[0046] (Ⅲ) Compostable garbage bag film material formula (kg):

[0047] Compostable De...

Embodiment 3

[0054] (I) Compostable degradable material formula (kg):

[0055] Iron oxide (through a 800-mesh sieve, the sieve residue is 7%, and the under-sieve passes through a 1000-mesh sieve, the sieve residue is 20%): 20

[0056] Methyltriethoxysilane: 0.3

[0057] Linear Low Density Polyethylene: 79.7

[0058] (II) Compostable garbage bag film material formula (kg):

[0059] Compostable Degradable Materials: 20

[0060] LDPE: 3

[0061] Linear Low Density Polyethylene: 77

[0062] The film thickness of the garbage bag prepared by blown film is 20 microns.

[0063] The process of compostable degradable material preparation and compostable garbage bag film preparation in embodiment 3 is the same as that in embodiment 2.

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Abstract

The invention discloses a compost-type degradable garbage bag thin film material and a manufacturing method thereof. The material consists of iron oxide with specific fineness, a coupling agent, low density polyethylene and linear low density polyethylene. The fineness of iron oxide is determined by the thickness of a produced garbage bag. 5%-20% of iron oxide with specific fineness, 0-0.5% of thecoupling agent and 80%-95% of linear low density polyethylene are mixed and granulated by a twin-screw extruder to prepare a compost-type degradation material. 5%-30% of the compost-type degradable material, 3% of low density polyethylene and 67%-92% of linear low density polyethylene are mixed to prepare a compost-type degradable garbage bag thin film, and then the garbage bag is prepared from the compost-type degradable garbage bag thin film by a bag-making machine. When the garbage bag is filled with water-containing garbage, the garbage bag is sealed and water cannot be leaked. When the garbage bag is piled up in a garbage dump, the garbage bag can be degraded quickly.

Description

technical field [0001] The invention relates to the field of compostable degradable film materials, in particular to a compostable degradable garbage bag film material and a preparation method thereof. Background technique [0002] Garbage bags bring a lot of convenience to millions of households, provide an important guarantee for family and social environmental protection, and are conducive to garbage recycling and classification. At present, most of the garbage bags used in daily life are made of petroleum-based materials, which are not easy to degrade and cause environmental pollution. If landfill treatment is used, it is difficult for oxygen and microorganisms to enter the garbage bag, which affects the degradation of degradable garbage in the garbage bag. The air wrapped in the garbage occupies the valuable volume of the landfill, reducing the waste of the landfill. service life. If ordinary incineration is adopted, the incineration temperature is not easy to control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K3/22C08K5/55C08J5/18B65D65/46
CPCB65D65/466C08J5/18C08J2323/08C08J2423/06C08K5/55C08K2003/2265Y02W90/10
Inventor 陆海荣
Owner 北京国瑞新源投资有限公司
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