Biodegradable material as well as preparation method and application thereof

A biodegradable material and raw material technology, applied in the field of biodegradable materials and their preparation, can solve the problems of material mechanical properties, water resistance, heat resistance, poor processing performance, high raw material cost, and difficulty in popularization, and achieve excellent mechanical properties and processing performance, comprehensive performance improvement, and the effect of solving environmental pollution problems

Active Publication Date: 2022-05-13
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems in the development and application of biodegradable materials, such as the high cost of raw materials makes it difficult to promote; the mechanical properties, water resistance, heat resistance and processing performance of materials are poor.

Method used

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  • Biodegradable material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The biodegradable straw is prepared by using the following raw materials in parts by weight:

[0042] 50 copies of PHBV, 30 copies of PBAT, 20 copies of PLA and 1 copy of ADR.

[0043] The preparation method is as follows: weighing the above-mentioned raw materials in parts by weight, performing twin-screw melt extrusion after mixing, cooling to obtain biodegradable materials, and cutting to obtain straws. Wherein, during the twin-screw melt extrusion, the temperature of each section of the twin-screw extruder, the melt pressure, the speed of the main screw and the feeding speed were set as in Comparative Example 1.

Embodiment 2

[0045] The biodegradable straw is prepared by using the following raw materials in parts by weight:

[0046] 50 copies of PHBV, 30 copies of PBAT, 20 copies of PLA, 1 copy of ADR and 10 copies of ESO-SA.

[0047] The preparation method is the same as in Comparative Example 1.

Embodiment 3

[0049] The biodegradable straw is prepared by using the following raw materials in parts by weight:

[0050] 50 copies of PHBV, 30 copies of PBAT, 20 copies of PLA, 1 copy of ADR and 10 copies of ECGE.

[0051] The preparation method is the same as in Comparative Example 1.

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Abstract

The invention discloses a biodegradable material as well as a preparation method and application thereof, and belongs to the technical field of biodegradable materials. A certain amount of PHBV, PLA, PBAT and an epoxy chain extender or a certain amount of PHBV, PLA, PBS and an epoxy chain extender are mixed and then subjected to twin-screw extrusion, cooling and slitting, and the biodegradable environment-friendly straw is obtained. The straw prepared by the invention has excellent mechanical property, processability, cold and heat resistance and water resistance, and compared with a traditional straw, the comprehensive performance is further improved, and the product experience feeling is better; the biodegradable polymer is used as a raw material, and the prepared material can be completely biodegraded, has the characteristics of being green, environment-friendly and non-toxic, has positive significance in solving the problem of environmental pollution of disposable straws, and conforms to the green and environment-friendly sustainable development concept.

Description

technical field [0001] The invention belongs to the technical field of biodegradable materials, and in particular relates to a biodegradable material and its preparation method and application. Background technique [0002] To facilitate daily life, the demand for drinking straws continues to increase. However, due to the short service life of the straws, the consumption of plastics is large, resulting in greater waste and environmental pollution. Therefore, many types of straws have been developed on the market to solve environmental problems. For example, paper straws are relatively cheap and environmentally friendly, but they have strong water absorption and their strength decreases after absorbing water. Metal straws are favored by the public due to their high mechanical strength and durability. But it is not easy to clean. Glass straws come in a variety of styles and are reusable, but they are expensive and fragile. [0003] Biodegradable straws made of biodegradab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L67/02C08L25/14A47G21/18
CPCC08L67/04A47G21/18C08L2201/06C08L67/02C08L25/14
Inventor 翁云宣宋鑫宇张彩丽刁晓倩
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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