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High-fluidity PLA bioplastic

A bioplastic, high fluidity technology, applied in the field of plastic modification and processing, can solve the problems of slow product degradation, many production processes, low softening point, etc., to achieve stable and reliable molding process, performance and quality improvement, easy to use. The effect of promoting the application

Inactive Publication Date: 2016-03-02
大韩道恩高分子材料(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional bioplastics have many advantages, but their disadvantages are also obvious, such as high preparation cost, many production processes, complicated process, low production efficiency, slow product degradation, low softening point and poor hydrophilicity. Promoting the application of bioplastics

Method used

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Embodiment Construction

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

[0026] A high fluidity PLA bioplastic, the formula is by weight percentage: polylactic acid

[0027] 94.5%-98.8%, initiator 1%-5%, auxiliary additive 0.1%-0.5%. Wherein, the melt flow rate of polylactic acid (PLA) when the test condition is 190°C / 2.16kg is 5g / 10min-50g / 10min; preferably 20g / 10min-30g / 10min. The initiator is an organic peroxide initiator, specifically 3,6,9-triethyl-3,6,9-trimethyl-1,4,7-triperoxynonane, 2,5-dimethyl Dimethyl-2,5-bis(tert-butylperoxy)hexane, 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, bis(hexadecyl peroxide) ) one of dicarbonate, 2-propylene peroxyacid-3-carbonyl-1-(1,1-dimethylethyl) ester. The auxiliary additives include any one or a combination of antioxidants, light stabilizers, and lubricants. When the antioxidant is selected, the combinat...

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Abstract

The invention relates to the technical field of plastic modification and processing, particularly relates to polylactic acid bioplastic, and more particularly relates to high-fluidity PLA bioplastic. A formula of the bioplastic comprises 94.5-98.8% of polylactic acid (with the melt flow rate at 190 DEG C / 2.16 kg being 5 g / 10 min to 50 g / 10 min), 1-5% of an initiator and 0.1-0.5% of an assistant additive. The bioplastic is prepared by 1) weighing raw materials according to the formula, 2) adding the weighed raw materials into a high-speed mixer, and performing dry mixing, and 3) feeding the mixed raw materials into a twin-screw extruder, melting, extruding and granulating to obtain a product. By adoption of the technical scheme, the product is biodegradable, forming and processing of the product are stable and reliable because of the high-fluidity PLA, performance and quality of the product are improved, degradation of the product after the product is abandoned is rapid and free of pollution, and the bioplastic is environmental friendly, low in production cost, simple in process and easy in popularization and application.

Description

technical field [0001] The invention relates to the technical field of plastic modification and processing, in particular to a polylactic acid bioplastic. Background technique [0002] Bioplastics are plastics produced under the action of microorganisms based on natural substances such as starch. They are renewable. In modern times when non-renewable resources are used less and less, people's awareness of resource utilization and environmental protection is gradually increasing. Therefore, it is important for environmental protection. There is also increasing interest in biodegradable materials. Bioplastics not only have the above-mentioned own characteristics, but also have very good adaptability to the human body, and their safety during use is much better than traditional plastic products. Polylactic acid is a new type of biodegradable material. It is made of starch raw materials extracted from renewable plant resources. It is a completely degradable and environmentally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08K5/14C08K5/134C08K5/526B29C47/92B29C48/92
Inventor 张磊河贤洙于晓宁
Owner 大韩道恩高分子材料(上海)有限公司
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