Full-biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw and preparation method thereof

A carbon dioxide and high temperature resistant technology, applied in the field of fully biodegradable high temperature resistant modified carbon dioxide-based transparent straws and their preparation, can solve the problems of high qualified rate of finished products, white pollution, consumption and the like

Active Publication Date: 2021-07-09
苏州中达航材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a fully biodegradable high temperature resistant modified carbon dioxide-based transparent straw and its preparation method in order to overcome the deficiencies of the prior art. The qualified rate of the finished product is high, and it is suitable for continuous large-scale production; the fully biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw prepared by this preparation method has excellent heat resistance, good mechanical properties, high stiffness and transparency, good degradability, and energy Consume the carbon dioxide that causes the greenhouse effect, respond to the zero-carbon China initiative, and solve the global "white pollution" problem

Method used

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preparation example Construction

[0018] Another object of the present invention is to provide a method for preparing the fully biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw, which is characterized in that it includes the following steps: after mixing the raw materials uniformly by weight, to obtain the mixed material, Then, the mixed material is added into a twin-screw extruder for melting and blending, extruded and granulated, cooled, and then drawn by a tube drawing machine, and then annealed to obtain a fully biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw.

[0019] Preferably, the barrel temperature of the twin-screw extruder is 160-180°C, and the die head temperature is 170°C.

[0020] Preferably, the screw speed of the twin-screw extruder is 300-600 rpm, and the screw length-to-diameter ratio L / D is 52:1.

[0021] Preferably, the cooling method is air cooling.

[0022] Preferably, the temperature of the annealing treatm...

Embodiment 1

[0026] A fully biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw is characterized in that it is made of the following raw materials in parts by weight: 5 parts of carbon dioxide-based PPC, 20 parts of PLA, 60 parts of PBS, 0.2 parts of dispersant, Compatibilizer 0.1 part, lubricant 0.1 part.

[0027] The lubricant is erucamide; the dispersant is ethylene bisstearamide; and the compatibilizer is compatibilizer CE2101.

[0028] Another object of the present invention is to provide a method for preparing the fully biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw, which is characterized in that it includes the following steps: after mixing the raw materials uniformly by weight, to obtain the mixed material, Then, the mixed material is added into a twin-screw extruder for melting and blending, extruded and granulated, cooled, and then drawn by a tube drawing machine, and then annealed to obtain a fully b...

Embodiment 2

[0033] This example provides a fully biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw, its formula and preparation method are basically the same as in Example 1, the difference is that it is made of the following raw materials in parts by weight: carbon dioxide-based PPC 6 25 parts of PLA, 63 parts of PBS, 0.23 parts of dispersant, 0.15 parts of compatibilizer, and 0.15 parts of lubricant.

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Abstract

The invention provides a full-biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw which is characterized by being prepared from the following raw materials in parts by weight: 5 to 10 parts of carbon dioxide-based PPC (Polypropylene Chloride), 20 to 35 parts of PLA, 60 to 70 parts of PBS, 0.2-0.3 part of dispersing agent, 0.1-0.3 part of bulking agent and 0.1-0.3 part of lubricating agent. The invention further discloses a preparation method of the full-biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw. The full-biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw is excellent in heat resistance, good in mechanical property, high in stiffness and transparency and good in degradability, can consume carbon dioxide causing a greenhouse effect, responds to the Chinese proposal of zero carbon, and solves the problem of global white pollution.

Description

technical field [0001] The invention relates to the technical field of degradable polymer materials, in particular to a fully biodegradable high-temperature-resistant modified carbon dioxide-based transparent straw and a preparation method thereof. Background technique [0002] In recent years, with the development of the economy and the progress of society, the pace of life of people, especially in big cities, has been accelerated day by day. Fast food has become a part of daily life and is closely related to people's lives. Fast food has brought a lot of convenience to people's life. However, the use of disposable tableware plastic products has also caused serious white pollution to the environment. These disposable tableware are difficult to recycle and are not easy to degrade in the natural environment, which is harmful to people's health. Health poses a serious threat. Government departments around the world have successively formulated relevant laws and regulations to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08L69/00A47G21/18
CPCC08L67/02A47G21/18C08L2201/06C08L2201/08C08L2203/18C08L67/04C08L69/00
Inventor 项衡
Owner 苏州中达航材料科技有限公司
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