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Photo-biodegradable polypropylene fiber and preparation method thereof

A technology of polypropylene fiber and biodegradation agent, which is applied in the field of textiles, can solve the problems of less reporting of polypropylene fiber, and achieve the effects of maintaining performance, protecting the environment, and good anti-aging performance

Active Publication Date: 2014-04-23
SHANGHAI YANGFAN INDAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, photo-biodegradable polypropylene fibers that meet the above requirements are rarely reported at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation of light-biodegradable polypropylene fiber comprises the following steps:

[0020] The preparation steps of the anti-aging agent: mix nano-titanium dioxide, graphite, hydroxybenzophenone, and metal-organic compounds containing nickel in a vibrating mixer in a mass ratio of 6.0:3.0:2.0:1.0, and the vibrating mixer The vibration frequency is 40Hz-60Hz, the mixing time is 40-60min, and then pressed into a molded block with a molding die, and placed in a corundum crucible for calcination at 1400°C for 2-3 hours. After the molded block is cooled, the molded block is crushed into particle size The powder smaller than 15μm can get anti-aging agent powder. The titanium and nickel in the anti-aging agent powder can absorb free radicals in the air and prevent polypropylene fibers from degrading under the action of free radical degradation mechanism.

[0021] In this embodiment, the graphite is selected from Qingdao Xingyuan Graphite Milk Co., Ltd. 0.5 μm special ...

Embodiment 2

[0044] The preparation steps of the anti-aging agent: mix nano-titanium dioxide, graphite, hydroxybenzophenone, and metal-organic compounds containing nickel in a vibrating mixer in a mass ratio of 6.0:4.0:1.0:1.0. The vibration frequency is 40Hz-60Hz, the mixing time is 40-60min, and then pressed into a molded block with a molding die, and placed in a corundum crucible for calcination at 1300°C for 2-3 hours. After the molded block is cooled, the molded block is crushed into a particle size The powder smaller than 15μm can get anti-aging agent powder. The titanium and nickel in the anti-aging agent powder can absorb free radicals in the air and prevent polypropylene fibers from degrading under the action of free radical degradation mechanism.

[0045] Photo-biodegradation agent preparation steps: the mass ratio of 3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) to graft-modified carboxymethyl starch (CMS) in the mixer is 2: 1, all the other are with embodiment 1.

[0046] Mic...

Embodiment 3

[0049] The preparation steps of the anti-aging agent: mix nano-titanium dioxide, graphite, hydroxybenzophenone, and metal-organic compounds containing nickel in a vibrating mixer in a mass ratio of 6.0:3.0:2.0:1.0, and the vibrating mixer The vibration frequency is 40Hz-60Hz, the mixing time is 40-60min, and then pressed into a molded block with a molding die, and placed in a corundum crucible for calcination at 1500°C for 2-3 hours. After the molded block is cooled, the molded block is crushed into particle size The powder smaller than 15μm can get anti-aging agent powder. The titanium and nickel in the anti-aging agent powder can absorb free radicals in the air and prevent polypropylene fibers from degrading under the action of free radical degradation mechanism.

[0050] Photo-biodegradation agent preparation steps: the mass ratio of 3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) in the mixer to graft-modified carboxymethyl starch (CMS) is 1: 3, all the other are with embod...

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Abstract

The invention discloses photo-biodegradable polypropylene fiber in the field of textiles. The photo-biodegradable polypropylene fiber comprises a fiber body, anti-aging agent powder uniformly distributed in the fiber body and photo-biodegradation agent microcapsules uniformly coated on the surface of the fiber body; the photo-biodegradable polypropylene fiber has excellent anti-aging performance when in use; and after being discarded, the photo-biodegradable polypropylene fiber can be degraded under the effect of sunlight and microorganisms in soil. The invention also discloses a preparation method of the photo-biodegradable polypropylene fiber. The method comprises an anti-aging agent preparation step for preparing anti-aging agent powder, a photo-biodegradation agent preparation step for preparing photo-biodegradation agent powder, a photo-biodegradation agent microcapsule preparation step for preparing photo-biodegradation agent microcapsules and a spinning step in which the anti-aging agent and the fiber-level polypropylene slices are subjected to melt blending in a screw extruder, the polypropylene fiber is extruded, and the photo-biodegradation agent microcapsules are uniformly coated on the surface of the polypropylene fiber to obtain the photo-biodegradable polypropylene fiber.

Description

technical field [0001] The invention relates to a photo-biodegradable polypropylene fiber in the field of textiles and a preparation method thereof. Background technique [0002] Photo-biodegradable polypropylene fiber refers to polypropylene fiber that can be degraded whether the fiber is exposed to the air or buried deep in the soil, and it is an environmentally friendly material. [0003] The current photo-biodegradable polypropylene fibers are divided into copolymerization-type degradable polypropylene fibers and additive-type degradable polypropylene fibers. Copolymerized degradable polypropylene fibers introduce appropriate photosensitive groups, such as carbonyl groups, into the molecular chain of polypropylene fibers through copolymerization. Ecolyte fiber is a copolymer of propylene, vinyl chloride, styrene and vinyl ketone, which not only has photodegradable properties, but also controls the time of photodegradation by adjusting the content of vinyl ketone in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M23/12D01F6/46D06M101/20
Inventor 梁彦李国强林锦顺谢其成
Owner SHANGHAI YANGFAN INDAL CO LTD
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