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Environmental degradable express bag film material and preparation method thereof

A technology of film material and degradable material is applied in the field of environmentally degradable express bag film material and its preparation, which can solve the problems of ecological pollution and difficult recycling of express plastic bags, and achieve the effect of reducing pollution.

Inactive Publication Date: 2019-02-12
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

Due to the excessive use of adhesive tape in express packaging, it is difficult to recycle express plastic bags. If these plastic wastes cannot be effectively disposed of, it will be a serious ecological pollution

Method used

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  • Environmental degradable express bag film material and preparation method thereof
  • Environmental degradable express bag film material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (A) Degradable material formula (kg):

[0026] Starch (through a 600-mesh sieve, 8% of the remaining sieve, and then pass the sieve through a 800-mesh sieve, and 30% of the remaining sieve): 5

[0027] Talc powder (through a 600-mesh sieve, 2% remains, and the undersieve passes through a 800-mesh sieve, 10% remains): 10

[0028] Vinyltrimethoxysilane: 0.05

[0029] Tetra-n-propyl zirconate: 0.05

[0030] Iron diethyldithiophosphate: 0.01

[0031] Polylactic acid: 40

[0032] Adipic acid-terephthalic acid-butylene glycol ester copolymer: 44.89

[0033] (B) Degradable material preparation:

[0034] The first step: Put the weighed starch, talc, tetra-n-propyl zirconate and vinyltrimethoxysilane into the heating mixer for mixing. The speed of the heating mixer is 500rpm, and the stirring temperature is 50~60℃. Stirring time is 3min.

[0035] The second step: put the weighed ferric diethyldithiophosphate, polylactic acid and adipic acid-terephthalic acid-butylene glyc...

Embodiment 2

[0043] (A) Degradable material formula (kg):

[0044] Starch (through a 400-mesh sieve, the remaining 0 is passed through a 500-mesh sieve, and the remaining 5% is sieved): 5

[0045] Talc powder (through a 400-mesh sieve, the remaining 0 is sieved, and the undersieve is passed through a 500-mesh sieve, and the remaining 5% is sieved): 10

[0046] Vinyltrimethoxysilane: 0.3

[0047] Cerium stearate: 0.3

[0048] Polylactic acid: 24.6

[0049] Adipic acid-terephthalic acid-butylene glycol ester copolymer: 60

[0050] (B) Degradable material preparation:

[0051] Step 1: Put the weighed starch, talcum powder and vinyltrimethoxysilane into the heating mixer for mixing. The speed of the heating mixer is 550rpm, the stirring temperature is 50~60°C, and the stirring time is 3min.

[0052] The second step: put the weighed cerium stearate, polylactic acid and adipic acid-terephthalic acid-butylene glycol ester copolymer into the heating mixer and continue mixing. The rotating spe...

Embodiment 3

[0060] (A) Degradable material formula (kg):

[0061] Starch (through a 400-mesh sieve, 5% of the remaining sieve, and then pass the sieve through a 500-mesh sieve, and 15% of the remaining sieve): 5

[0062] Talc powder (through a 400-mesh sieve, 5% of the remaining sieve, and then pass the sieve through a 500-mesh sieve, and 15% of the remaining sieve): 10

[0063] Vinyltrimethoxysilane: 0.3

[0064] Cerium stearate: 0.3

[0065] Polylactic acid: 24.6

[0066] Adipic acid-terephthalic acid-butylene glycol ester copolymer: 60

[0067] (B) The preparation of degradable materials, the material composition of the outer layer, the middle layer and the inner layer, and the preparation of the courier bag film are the same as in Example 2. The film thickness of the blow-molded courier bag is 40 microns.

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Abstract

The invention discloses an environmental degradable express bag film material and a preparation method thereof. The degradable express bag film material is prepared from starch, polylactic acid, an adipic acid-terephthalic acid-butanediol ester copolymer, a coupling agent, talcum powder, a degradation accelerant, masterbatch and linear low density polyethylene. 5-10% of the starch, 10-30% of the talcum powder, 0.01-5% of the degradation accelerant, 20-40% of the polylactic acid, 40-60% of the adipic acid-terephthalic acid-butanediol ester copolymer, 0.1-0.5% of vinyl trimethoxysilane and 0-20%of the linear low density polyethylene are mixed at a high speed to prepare a degradation material; in percentage by weight, 8-30% of degradation materials and 65-85% of the linear low density polyethylene and 2-7% of the masterbatch are mixed to prepare the express bag film material and then prepare express bags. The expression bag can be rapidly degraded after used.

Description

technical field [0001] The invention relates to the field of express packaging film materials, in particular to an environmentally degradable express bag film material and a preparation method thereof. Background technique [0002] On June 1, 2008, the state promulgated a nationwide ban on the production, sale, and use of plastic shopping bags with a thickness of less than 0.025 mm; a system of paid use of plastic shopping bags was implemented in all supermarkets, shopping malls, bazaars and other commodity retail places. The use of plastic bags has been curbed to some extent. However, the rapid development of express delivery has brought about an inestimable consumption of plastic packaging products. According to statistics, in 2017, my country's express delivery volume reached 31.3 billion pieces, consuming 2.96 billion plastic woven bags, 8.26 billion plastic bags, and 169.5 meters of adhesive tape. Due to the excessive use of adhesive tape in express packaging, it is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L67/02C08L67/04C08L3/02C08K13/02C08K3/34C08K5/5425C08K5/544C08J5/18
CPCC08J5/18C08J2323/08C08J2367/02C08J2403/02C08J2423/08C08J2467/02C08J2467/04C08K5/5425C08K5/544C08K2201/005
Inventor 陆海荣
Owner 北京国瑞新源投资有限公司
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