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Degradable material and preparation method thereof

A technology for degrading materials and degrading additives, applied in the field of degradable materials and their preparation, can solve the problems of wood consumption, inability to be widely used and high manufacturing costs

Inactive Publication Date: 2021-04-30
GUANGDONG GERUI NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some existing degradable tableware, such as paper tableware, cannot be popularized and used on a large scale due to wood consumption and high manufacturing costs

Method used

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  • Degradable material and preparation method thereof
  • Degradable material and preparation method thereof
  • Degradable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A degradable material, comprising the following raw materials in parts by weight:

[0035]

[0036] The molecular weight of the polylactic acid is 150,000; the chitin is chitin 9012-76-4 produced by Xi'an Aosai Biotechnology Co., Ltd.; the PBAT resin is PBAT produced by Suzhou Xinfeiyang Engineering Plastics Co., Ltd. Resin TH801T.

[0037] Described modified bamboo fiber is made through the following steps:

[0038] S1, take by weighing 5g bamboo fiber, pulverize to particle diameter and be less than 100 orders, add the bamboo fiber after pulverizing 200mL concentration 0.1mol / L containing IO4 -1 Add 8 mL of sodium hydroxide solution with a concentration of 0.1 mol / L to the solution, heat to 50°C, stir for 20 minutes, then wash with deionized water once, then filter the deionized water and spray with liquid nitrogen to freeze for 3 minutes , then add the frozen bamboo fiber into the grinding device and grind for 1min to obtain the bamboo fiber bundle, which is set...

Embodiment 2

[0053] A degradable material, comprising the following raw materials in parts by weight:

[0054]

[0055] The molecular weight of the polylactic acid is 170,000; the chitosan is chitosan 9012-76-4 produced by Xi'an Aosay Biotechnology Co., Ltd.; the PBAT resin is PBAT produced by Suzhou Xinfeiyang Engineering Plastics Co., Ltd. Resin TH801T.

[0056] Described modified bamboo fiber is made through the following steps:

[0057] S1, take by weighing 6g bamboo fiber, pulverize to particle diameter less than 100 orders, add the bamboo fiber after pulverizing 210mL concentration 0.1mol / L containing IO4 -1 Add 8.5 mL of sodium hydroxide solution with a concentration of 0.1 mol / L to the solution, heat to 55°C, stir for 25 minutes, then wash with deionized water once, then filter the deionized water and spray it with liquid nitrogen to freeze 3min, then add the frozen bamboo fiber into the grinding device and grind for 2min to obtain the bamboo fiber bundle, which is for subsequ...

Embodiment 3

[0072] A degradable material, comprising the following raw materials in parts by weight:

[0073]

[0074] The molecular weight of the polylactic acid is 200,000; the chitosan is chitosan 9012-76-4 produced by Xi'an Aosai Biotechnology Co., Ltd.; the PBAT resin is PBAT produced by Suzhou Xinfeiyang Engineering Plastics Co., Ltd. Resin TH801T.

[0075] Described modified bamboo fiber is made through the following steps:

[0076] S1, take by weighing 7g bamboo fiber, pulverize to particle diameter less than 100 orders, add the bamboo fiber after pulverizing 220mL concentration 0.1mol / L containing IO4 -1Add 9 mL of sodium hydroxide solution with a concentration of 0.1 mol / L to the solution, heat to 60°C, stir for 30 minutes, then wash with deionized water twice, then filter the deionized water and spray with liquid nitrogen to freeze for 4 minutes , then add the frozen bamboo fiber into the grinding device and grind for 31min to obtain the bamboo fiber bundle, which is for s...

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Abstract

The invention relates to the technical field of degradable materials, in particular to a degradable material and a preparation method thereof. The degradable material is prepared from the following raw materials in parts by weight: 10-20 parts of starch, 10-20 parts of polylactic acid, 1-5 parts of a compatilizer, 1-5 parts of a nucleating agent, 20-40 parts of PBAT resin, 1-3 parts of an inorganic filler, 4-12 parts of modified bamboo fibers, 1-5 parts of deacetylated chitin and 1-5 parts of a degradable additive. According to the degradable material disclosed by the invention, the deacetylated chitin and the modified bamboo fibers are used as antibacterial raw materials, the deacetylated chitin has good antibacterial activity, and meanwhile, the PBAT resin, the degradable additive and the nucleating agent are combined, so the prepared material has antibacterial properties and also has a very good self-degradation effect, and and good flexibility, bending strength and heat resistance; and compared with a pure PBAT material, the degradable material of the invention has the advantages that cost is reduced, no harm is caused to human beings and the environment and wide market prospects and good application value are achieved.

Description

technical field [0001] The invention relates to the technical field of degradable materials, in particular to a degradable material and a preparation method thereof. Background technique [0002] With the rapid rise of the Internet and O2O business models, the online food ordering and delivery market is growing day by day. While ordering takeaway online provides people with convenient and fast services, it also produces a large amount of disposable plastic tableware waste. The pollution of takeaway tableware has attracted more and more attention. Only 14% of the plastic packaging in the world is recycled. In addition to the loss in processing, only about 10% are effectively recycled in the end. Takeaway tableware is theoretically recyclable. However, due to its light and thin texture, it is often stained with oil and food residue If it is polluted, its recycling needs to be cleaned and collected. The labor cost required is often higher than the economic value of tableware r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L3/02C08L67/04C08L5/08C08L1/08C08K13/06C08K5/098C08K5/092C08K9/10C08K3/04
CPCC08L67/02C08L2201/06C08L2201/08C08L2205/035C08L2205/025C08L2205/16C08L2205/24
Inventor 郑宇航郑子华陈扬友郑飞飞梁卫涛
Owner GUANGDONG GERUI NEW MATERIALS CO LTD
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