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A straw and temperature-resistant technology, which is applied in the field of preparation of heat-resistant straws, can solve problems such as inconvenient use, insufficient strength, and inconvenient popularization, and achieve the effects of cost reduction, fast molding speed, and good biodegradability
Pending Publication Date: 2022-02-25
河北旭阳能源有限公司 +1
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Problems solved by technology
Existing degradable materials are often not strong enough to cause damage during use while satisfying degradability, and are easily deformed when the temperature is high, making it inconvenient to use and not easy to popularize
Method used
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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Embodiment 1
[0047] 50 parts of polylactic acid, 20 parts of polyadipate / butylene terephthalate, 20 parts of starch, 10 parts of short fiber, 3 parts of compatibilizer, 1 part of plasticizer, 0.5 part of nucleating agent, coupling Agent 3 parts, antioxidant 1010, 168 is 0.05, 0.05 parts.
[0048] Put 20 parts of starch and 1 part of plasticizer into the high mixer and stir for 10-50 minutes; then mix the plasticized starch and other components in the mixer evenly; and extrude through the straw extruder Cut the tube and place it in a hot air oven at 80°C to 100°C for 10min to 60min to obtain the finished product A.
Embodiment 2
[0050]50 parts of polylactic acid, 20 parts of polybutylene succinate, 20 parts of starch, 10 parts of short fiber, 3 parts of compatibilizer, 2 parts of plasticizer, 1.5 parts of nucleating agent, 3 parts of coupling agent, antioxidant Agents 1010 and 168 are 0.05 and 0.05 parts.
[0051] Put 20 parts of starch and 3 parts of plasticizer into the high mixer and stir for 10-50 minutes; then mix all the raw materials in the mixer evenly, and extrude the cut tube through the straw extruder, and put it into Process in a hot air oven at 80°C to 100°C for 10min to 60min to obtain finished product B.
Embodiment 3
[0053] 50 parts of polylactic acid, 20 parts of polybutylene succinate, 20 parts of starch, 10 parts of long fiber, 3 parts of compatibilizer, 3 parts of plasticizer, 2 parts of nucleating agent, 3 parts of coupling agent, antioxidant Agents 1010 and 168 are 0.05 and 0.05 parts.
[0054] The preparation method is as shown in Example 2, and the finished product C is obtained.
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Abstract
The invention discloses a preparation method of a temperature-resistant straw. The temperature-resistant straw comprises the following raw materials in parts by weight: 50-80 parts of a main material consisting of polylactic acid (PLA) and polyester (PBS, PBT, PET and PBAT), 5-40 parts of a filler consisting of starch, talcum powder, calcium carbonate, short fibers and long fibers, 1-10 parts of a compatilizer, 1-8 parts of a plasticizer, 0.5-3 parts of a nucleating agent, 0.25-0.5 part of a coupling agent, 0.05-0.5 part of an antioxidant and 0.1-0.3 part of a lubricant. The temperature-resistant straw is prepared from the above raw materials by weight according to the following steps: S1, performing dry plasticizing on the starch; S2, mixing the raw materials; S3, carrying out melt extrusion; and S4, performing heat treatment. The preparation method of the temperature-resistant straw is simple in process, high in a subsequent forming speed, and easy for industrial production.
Description
technical field [0001] The invention relates to the field of biodegradable materials, in particular to a method for preparing a heat-resistant straw. Background technique [0002] With the development of science and technology, people's living standards are improving day by day, and the pace of life is gradually accelerating. The consumption of milk, beverages and foods is increasing, and straws are generally used for beverages. Suction straw is favored by people because of its convenience, hygiene and cheapness as a disposable article. [0003] Existing straws are mostly made of plastics and additives, which are not easy to degrade; or although they are degradable, they have poor high temperature resistance, are easily deformed when exposed to high temperature liquids, and have low strength. Facing the increasingly depleted oil resources, trendy biodegradable materials are becoming a research and development hotspot as high-tech products and environmental protection produ...
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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