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Preparation method of oxidation-biodegradable shopping bag
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A biodegradable and shopping bag technology, applied in the field of degradable plastics, can solve the problems of shopping bag pollution, which has not been fundamentally solved, and achieve the effects of reducing waste, improving productivity, and low energy input
Pending Publication Date: 2017-11-17
昆明鑫鑫大壮降解塑料技术有限公司
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Summary
Abstract
Description
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Problems solved by technology
Although the paid use limits a certain number of shopping bags, the pollution problem caused by shopping bags has not been fundamentally solved
Method used
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Effect test
Embodiment 1
[0037] A preparation method of an oxidative biodegradable shopping bag, comprising the following steps:
[0038] A1. Mixing:
[0039] Mix the resin additive, degradation masterbatch and filler evenly;
[0040] A2. Heating and melting:
[0041] The raw materials mixed uniformly in step A1 are heated and melted, and the temperature of heating and melting is 165° C.;
[0043] The heated and melted mixed molten liquid is extruded through a twin-screw extruder, and the temperature inside the twin-screw extruder is 165°C;
[0049] Ultrasonic high-frequency welding or heat-sealing with a heat-sealing knife to form an inner bag with three sides welded and one side open to obtain an oxo-biodegradable shopping bag.
[0050] The preparation process of th...
Embodiment 2
[0052] A preparation method of an oxidative biodegradable shopping bag, comprising the following steps:
[0053] A1. Mixing:
[0054] Mix the resin additive, degradation masterbatch and filler evenly;
[0055] A2. Heating and melting:
[0056] The raw materials mixed uniformly in step A1 are heated and melted, and the temperature of heating and melting is 175° C.;
[0058] The heated and melted mixed molten liquid is extruded through a twin-screw extruder, and the temperature inside the twin-screw extruder is 170°C;
[0064] Ultrasonic high-frequency welding or heat-sealing with a heat-sealing knife to form an inner bag with three sides welded and one side open to obtain an oxo-biodegradable shopping bag.
[0065]The preparation process of the...
Embodiment 3
[0067] A preparation method of an oxidative biodegradable shopping bag, comprising the following steps:
[0068] A1. Mixing:
[0069] Mix the resin additive, degradation masterbatch and filler evenly;
[0070] A2. Heating and melting:
[0071] The raw materials mixed uniformly in step A1 are heated and melted, and the temperature of heating and melting is 185°C;
[0073] The heated and melted mixed molten liquid is extruded through a twin-screw extruder, and the temperature inside the twin-screw extruder is 175°C;
[0079] Ultrasonic high-frequency welding or heat-sealing with a heat-sealing knife to form an inner bag with three sides welded and one side open to obtain an oxo-biodegradable shopping bag.
[0080] The preparation process of the ...
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PUM
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Abstract
The invention belongs to the technical field of degradable plastic and in particular relates to a preparation method of an oxidation-biodegradable shopping bag. The oxidation-biodegradable shopping bag is prepared from the following raw material components: a resin additive, a degradable master batch and a filling agent; the oxidation-biodegradable shopping bag is prepared from the raw material components in percentage by mass: 87 percent to 96 percent of the resin additive, 3.0 percent to 10 percent of the degradable master batch and 1.0 percent to 3.0 percent of the filling agent; a preparation process is simple, and production equipment and a production process do not need to be changed; the oxidation-biodegradable shopping bag can be recycled and waste materials are not generated; toxic substances are not generated in production, storage, utilization and degradation processes; original performance of a product is not influenced; the productivity is improved; especially, the productivity of thin film and sheet material products is improved; the thickness can be properly reduced when mechanical properties are the same; the raw materials adopt conventional materials and a natural modifier; compared with energy source investment of competitive products or directly-biodegradable products, the energy source investment of the oxidation-biodegradable shopping bag is the lowest and the energy consumption of other products is 3 times as much as that of the oxidation-biodegradable shopping bag; few polymers are used so that natural resources are ensured; the waste materials are reduced; in a composting process, nutrients are easily supplemented and the value of useful humus soil is not influenced.
Description
technical field [0001] The invention belongs to the technical field of degradable plastics, and in particular relates to a preparation method of an oxidative biodegradable shopping bag. Background technique [0002] The shopping bags provided by supermarkets, shopping malls, bazaars, etc. are basically made of polystyrene, polyethylene, polypropylene and other polymer materials. Because they are difficult to degrade, they cause serious damage to the ecological environment and threaten the survival of human beings. Space, people call it "white pollution". To this end, the General Office of the State Council of China issued the "Notice on Restricting the Production and Sale of Plastic Shopping Bags". The notice pointed out that in view of the fact that shopping bags have become the main source of "white pollution", people's governments, ministries and commissions in various places should prohibit the production, sale and use of ultra-thin plastic shopping bags in the future, ...
Claims
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Application Information
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