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A composite film and raw material technology, applied in the field of plastic film products, can solve the problems of accumulation of plastic waste, environmental hazards, white pollution, etc., and achieve the effect of ensuring strength and toughness, low requirements, and reducing impact
Inactive Publication Date: 2017-09-19
闫博
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Problems solved by technology
However, due to the chemical stability of general-purpose plastics, they will exist stably in the environment for a long time after they are abandoned, causing a large amount of plastic waste to accumulate in the environment, causing serious harm to the environment, such as white pollution, agricultural white cancer And other issues
Method used
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Embodiment 1
[0019] A composite film, consisting of the following raw materials in parts by weight: 75 parts of low-density polyethylene, 7 parts of plant fiber, 10 parts of starch, 5 parts of diatomaceous earth, 8 parts of light calcium carbonate, 2 parts of zinc oxide, and a degradation accelerator 3 parts, 0.5 parts of plasticizer, 0.1 part of defoamer.
[0020] The preparation method of composite film, comprises the following steps:
[0021] Weigh the corresponding weight parts of the raw materials respectively, adjust the heating temperature of the high-speed mixer to 80°C, and the speed is 450r / min, add the starch into the high-speed mixer, add an appropriate amount of water, run for 30min, and then heat the The temperature rises to 120°C and the rotational speed is maintained at 500r / min. Add low-density polyethylene, plant fiber, starch, diatomaceous earth, light calcium carbonate, zinc oxide, degradation accelerator and plasticizer into the high-speed mixer, and mix and stir. Aft...
Embodiment 2
[0025] A composite film, consisting of the following raw materials in parts by weight: 90 parts of low-density polyethylene, 12 parts of plant fiber, 18 parts of starch, 10 parts of diatomaceous earth, 13 parts of light calcium carbonate, 6 parts of zinc oxide, and a degradation accelerator 8 parts, plasticizer 4 parts, defoamer 2 parts.
Embodiment 3
[0027] A composite film, consisting of the following raw materials in parts by weight: 87 parts of low-density polyethylene, 10 parts of plant fiber, 13 parts of starch, 7 parts of diatomaceous earth, 9 parts of light calcium carbonate, 5 parts of zinc oxide, and a degradation accelerator 6 parts, 2 parts of plasticizer, 1 part of defoamer.
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Abstract
The invention relates to a composite film, mainly relates to the technical field of film products, and is composed of the following raw materials in parts by weight: 75-90 parts of low-density polyethylene, 7-12 parts of plant fibers, 10-18 parts of starch, and 5- parts of diatomite 10 parts, 8-13 parts of light calcium carbonate, 2-6 parts of zinc oxide, 3-8 parts of degradation accelerator, 0.5-4 parts of plasticizer, and 0.1-2 parts of defoamer. The composite film of the present invention, by adding diatomite, starch, plant fiber and degradation accelerator to the raw materials, not only ensures the strength and toughness of the film, but also reduces the mobility of the plasticizer, and has a good degradation effect. Minimize the impact on the surrounding environment. The processing technology of the invention is simple and convenient, the requirements for mechanical equipment are not high, the preparation cost is low, and the invention has good economic benefits.
Description
technical field [0001] The invention belongs to the technical field of plastic film products, and in particular relates to a composite film. Background technique [0002] Due to its light weight, high strength and low price, plastic has been rapidly developed and widely used in the packaging field since the 1970s, such as plastic bags, food packaging boxes and beverage packaging. However, due to the chemical stability of general-purpose plastics, they will exist stably in the environment for a long time after they are abandoned, causing a large amount of plastic waste to accumulate in the environment, causing serious harm to the environment, such as white pollution, agricultural white cancer And other issues. [0003] With the increasingly prominent environmental problems and the continuous improvement of human awareness of environmental protection, the disposal of plastic waste has become the focus of widespread concern in the international community. At present, the ways...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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