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Plasma nano titanic oxide/polypropylene/polylactic acid and preparation method thereof

A nano-titanium dioxide and plasma technology, which is applied in the direction of conjugated synthetic polymer artificial filaments, etc., can solve the problems of poor compatibility and achieve the effects of improved dispersion, unchanged internal phase structure, and high fiber-forming strength

Inactive Publication Date: 2012-05-09
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, certain properties of PLA, such as melt viscosity, impact performance, heat distortion temperature, and gas barrier properties, cannot meet different end uses. Therefore, in recent years, there has been an upsurge of research on PLA and its copolymers and blends.
[0003] People have done a lot of work on PLA blending modification. The use of polypropylene / polylactic acid blending can reduce the amount of polypropylene and reduce environmental pollution, and can maintain good mechanical properties of the product. However, polar PLA and non-polar PLA The compatibility of polar PP is poor. The literature [Carboxylated PP and PLA Blending] selected carboxylated PP and PLA blending, hoping to improve the compatibility of the two
[0004] However, the research and patents of PP / PL blended composite materials and PP / PLA blended composite fibers that can realize industrialization have not been reported.

Method used

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  • Plasma nano titanic oxide/polypropylene/polylactic acid and preparation method thereof
  • Plasma nano titanic oxide/polypropylene/polylactic acid and preparation method thereof
  • Plasma nano titanic oxide/polypropylene/polylactic acid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] (1) Take a certain amount of commercial titanium dioxide nanopowder and put it on the special transmission device of the plasma processing equipment. Schematic such as image 3 (or a channel for adding a plasma nozzle), the container or carrier is placed within a specific distance of 2 cm below the nozzle of the normal pressure\normal temperature plasma spray device (the design of the nozzle part of the channel is based on specific requirements), and the thickness of the nanopowder laying Lay it according to the thickness of 5 mm. Under the premise of turning on the plasma at normal pressure and room temperature, the container or carrier moves at a specific speed. Realize that nano-titanium oxide powder can be obtained under helium plasma atmosphere, power 40 watts and 5 seconds. deal with.

[0025] (2) Mix the above-mentioned inorganic solid-phase substance with polypropylene / polylactic acid powder or chips in a mass ratio of 0.1-20% with a twin-screw extruder, and me...

Embodiment 2

[0028] (1) Take a certain amount of commercial titanium dioxide nanopowder and put it on the special transmission device of the plasma processing equipment. Schematic such as image 3 (or a channel for adding a plasma nozzle), the container or carrier is placed within a specific distance of 2 cm below the nozzle of the normal pressure\normal temperature plasma jet device (the design of the nozzle part of the channel is based on specific requirements), and the thickness of the nanopowder laying Lay it according to the thickness of 5 mm. Under the premise of turning on the normal pressure and room temperature plasma, the container or carrier moves at a specific speed. Realize that the nano-titanium oxide powder can be processed in an oxygen plasma atmosphere with a power of 40 watts and 5 seconds. .

[0029] (2) Mix the above-mentioned inorganic solid-phase substance with polypropylene / polylactic acid powder or chips in a mass ratio of 0.1-20% with a twin-screw extruder, and me...

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PUM

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Abstract

The invention relates to plasma nano-titanium dioxide / polypropylene / polylactic acid and a preparation method thereof. The preparation method comprises the following steps: (1) non-polar solid phase substances are prepared; (2) the prepared non-polar solid phase substances and polypropylene / / polylactic acid powder or chips are mixed according to the mass ratio of 0.1 to 20 percent by a double screw extruder at a temperature of between 180 and 260 DEG C, so as to obtain nano-titanium dioxide / polypropylene / polylactic acid chips; and (3) the prepared nano-titanium dioxide / polypropylene / polylactic acid chips are spun according to the prior melt spinning method to obtain the product. The prepared spinning chips have the characteristics of good spinnability, high fiber forming strength, controllable dyeing, bacteria resistance, fraction static prevention, light resistance and biodegradation.

Description

technical field [0001] The invention belongs to the field of macromolecular materials and its preparation, in particular to ion nanometer titanium dioxide / polypropylene / polylactic acid and its preparation method. Background technique [0002] In recent years, a large number of discarded plastics such as polyolefin, polystyrene, polyvinyl chloride, etc. have caused serious pollution to the environment, so the research and development of biodegradable plastics have attracted more and more attention. Polylactic acid (PLA) is a linear aliphatic polyester obtained by direct polycondensation of lactic acid monomers or ring-opening polymerization of lactide. Its raw materials can be fermented from plants such as corn and sugar cane, and its waste can be degraded. The final products are carbon dioxide and water; in addition to biodegradability, PLA also has the characteristics of good biocompatibility, high strength, plastic processing and molding, etc., and has broad application pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/06D01F8/14D01F1/10
Inventor 张迎晨黄婧南邱夷平
Owner DONGHUA UNIV
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