Method for direct preparation of fiber product from polylactic acid polymerized melt

A fiber product, polylactic acid technology, applied in the application field of new polymer materials, can solve problems such as restricting the industrialization process of fiber products, and achieve the effect of ensuring spinnability, quality, and less equipment investment
CN101086089AActive Publication Date: 2007-12-12李振华
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
李振华
Publication Date
2007-12-12

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Abstract

A directive preparing method of fiber products through polylactic acid polymeric welding flux belongs to high polymer materials application technology. It heats the polylactic acid polymeric welding flux which is prepared through the polymerization reaction in the polylactic acid polymerization reaction device by means of a welding flux conveyer which is connected between the discharge port of termination device discharge pump of polylactic acid polymerization reaction device and the feeding inlet of spinning runk, and guides the polylactic acid polymeric welding flux into spinning runk in positive pressure and thermal insulation state, then the spinning runk spins the guided polylactic acid polymeric welding flux and prepares fabric products. The advantages are: it avoids the impact of spinning performance caused by dry, it ensures spinning performance and also ensures the quality of fiber products; the polylactic acid polymeric welding flux is guided into spinning runk to spin from discharge pump and through welding flux conveyer, so the technology process is very simple and easy, the equipment investment is less; due to no granulating, dewatering, drying, screw bolt squeezing and melting, energy consumption can be saved more than one third, it is useful for reducing the cost of fiber products.
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Description

technical field

[0001] The invention relates to a method for directly preparing fiber products from a polylactic acid polymer melt, and belongs to the technical field of new polymer materials applications. Background technique

[0002] Polylactic acid is a new biodegradable polymer material that uses renewable corn or glucose as the initial raw material, and is finally polymerized through multiple preparation processes. It was officially industrialized in the United States in 2002. The academic name is abbreviated as PLA. my country is in the research and development stage. Has not yet entered industrial production.

[0003] At present, individual manufacturers in China are trying to prepare fiber products from the polylactic acid polymer melt obtained by the polymerization reaction of the polymerization device. The method is as follows: first, the main raw material is lactide (LA) and the initiator is put into the polylactic acid polymerization reaction Device ring-opening ...

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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