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A technology for plastic bags and products, applied in the field of plastic products, can solve problems such as application limitations, and achieve the effects of short process, simple process and less equipment investment
Inactive Publication Date: 2012-04-25
河南省南街村(集团)有限公司
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Summary
Abstract
Description
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Application Information
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Problems solved by technology
People began to use starch and vegetable protein to produce a lot of research and development of degradable plastics, such as: Chinese patent application number: 200410065649.8, name: a high-starch degradable plastic film, made great achievements, but because of The production process, production cost, product thickness and tensile strength and other reasons have not been promoted, and its application has also been greatly restricted.
Method used
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Embodiment 1
[0024] Degradable plastic bag preparation formula:
[0025] Raw material name % by weight
[0026] HDPE 25%
[0027] Medium Density Polyethylene 25%
[0028] Composite additive (benzophenone and polyvinyl alcohol 1:9) 20%
[0029] Recycling waste plastic pellets of the same nature 25%
[0030] Filler (calcium carbonate) 4 %
[0031] Colored polyethylene 1%
[0032] The above formula can be used to produce a degradable film with a thickness of 0.025mm.
Embodiment 2
[0034] Degradable plastic bag preparation formula:
[0035] Raw material name % by weight
[0036] HDPE 40%
[0037] Medium Density Polyethylene 20%
[0038] Composite additive (benzophenone and polyvinyl alcohol 1.5:8.5) 10%
[0039] Recycling waste plastic pellets of the same nature 12%
[0040] Filler (calcium carbonate) 10%
[0041] Colored polyethylene 8%
[0042] The above formula can be used to produce a degradable film with a thickness of 0.025mm.
Embodiment 3
[0044] Degradable plastic bag preparation formula:
[0045] Raw material name % by weight
[0046] HDPE 52.5%
[0047] Medium Density Polyethylene 17.5%
[0048] Composite additive (benzophenone and polyvinyl alcohol 2:8) 4%
[0049] Recycling waste plastic pellets of the same nature 4%
[0050] Filler (calcium carbonate) 20%
[0051] Colored polyethylene 2%
[0052] The above formula can be used to produce a degradable film with a thickness of 0.025 mm.
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Abstract
The invention discloses a degradable plastic bag product, which is made from high-density/ medium-density/low-density polyethylene particles, fillers, and a certain amount of composite additive and recovered congenerous waste regenerated plastic particles. The degradable plastic bag product comprises the following raw materials in percentage by weight: 50-70% of polyethylene particles, 4-20% of composite additives, 4-20% of fillers and 4-25% of waste regenerated plastic particles. Colored products can be prepared by adding 1-8% of colored polyethylene particles to the raw materials. The degradable plastic bag product has the advantages of simple process, short process flow and small investment of devices mainly comprising a film blowing machine, a printer and a bag machine. According to the process of the degradable plastic bag product disclosed by the invention, a thin film with the thickness of 0.02 can be produced, wherein a thin film with the thickness of 0.025 has the characteristics of mechanical property of 33MPa in longitudinal direction and 25MPa in transverse direction, elongation of 260% in longitudinal direction and 620% in transverse direction and degradation time from three months to two years.
Description
[0001] technical field [0002] The invention relates to a plastic product, in particular to a degradable plastic bag product. Background technique [0003] As a material with a wide range of uses, plastic has greatly facilitated people's lives, but its non-decomposable characteristics have also caused serious environmental problems. Therefore, the research and production of degradable plastic products have attracted great attention internationally. People began to use starch and vegetable protein to produce a lot of research and development of degradable plastics, such as: Chinese patent application number: 200410065649.8, name: a high-starch degradable plastic film, made great achievements, but because of Production technology, production cost, product thickness and tensile strength and other reasons have not been promoted, and its application has also been greatly limited. Contents of the invention [0004] The technical problem to be solved by the present invention i...
Claims
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Application Information
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