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Production process of fast biodegradable porous polyester fiber

A technology of biodegradation and polyester fiber, applied in the direction of fiber chemical characteristics, single-component polyester rayon, chemical post-treatment of synthetic polymer rayon, etc., can solve the problem of slow microbial degradation and longer biodegradation time , dense fiber structure and other issues

Inactive Publication Date: 2020-06-05
BOJU SHANGHAI ECOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

lead to longer biodegradation time
[0007] 2. Dense fiber structure problem
This will lead to microbial contact only starting from the surface of the fiber, slowly degrading from the outside to the inside, and the dense structure with high crystallinity also makes it difficult to break the chain forging and reach the microorganisms, making the degradation rate of the microorganisms slow

Method used

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  • Production process of fast biodegradable porous polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Preparation of soluble polyester masterbatch with biodegradable additives.

[0057] Mix biodegradable additives with soluble polyester, wherein the proportion of biodegradable additives is 20%, soluble polyester is water-soluble polyester, blend and granulate, and granulate to obtain water-soluble polyester containing biodegradable additives. permanent polyester masterbatch.

[0058] (2) Pre-crystallize ordinary polyester chips and then dry them.

[0059] (3) The soluble polyester masterbatch containing biodegradable additives is added to the dried ordinary polyester chips at a ratio of 2%, and sent to the spinning screw for blending and spinning to obtain polyester polymers. spinning fluid.

[0060] (4) The spinning fluid is made into filament DTY according to the conventional spinning process, 75D / 48F.

[0061] (5) The fiber strength is 3.8cn / dtex, and the elongation at break is 31%.

[0062] (6) Treat the fiber in 100-degree hot water for 60 minutes to dissol...

Embodiment 2

[0065] (1) Preparation of soluble polyester masterbatch with biodegradable additives.

[0066] Mix the biodegradable additive with the alkali-soluble polyester, wherein the proportion of the biodegradable additive is 15%, and the soluble polyester is alkali-soluble polyester, blend and granulate, and granulate to obtain the biodegradable additive. Water-soluble polyester masterbatch.

[0067] (2) Pre-crystallize ordinary polyester chips and then dry them.

[0068] (3) The soluble polyester masterbatch containing biodegradable additives is added to the dried ordinary polyester chips at a ratio of 5%, and sent to the spinning screw for blending and spinning to obtain polyester polymers. spinning fluid.

[0069] (4) The spinning fluid is made into filament FDY according to the conventional spinning process, 50D / 36F.

[0070] (5) The fiber strength is 3.5cn / dtex, and the elongation at break is 33%.

[0071] (6) Treat the fiber in a 100% sodium hydroxide solution with a concent...

Embodiment 3

[0074] (1) Preparation of soluble polyester masterbatch with biodegradable additives.

[0075] Mix the biodegradable additive with the alkali-soluble polyester, wherein the proportion of the biodegradable additive is 10%, and the soluble polyester is alkali-soluble polyester, blend and granulate, and granulate to obtain the biodegradable additive. Water-soluble polyester masterbatch.

[0076] (2) Pre-crystallize ordinary polyester chips and then dry them.

[0077] (3) The soluble polyester masterbatch containing biodegradable additives is added to the dried ordinary polyester chips at a ratio of 5%, and sent to the spinning screw for blending and spinning to obtain polyester polymers. spinning fluid.

[0078] (4) According to the conventional spinning process of the spinning fluid, the spinneret hole is designed to be hollow, and the short fiber with a hollow cross section is produced.

[0079] (5) The fiber specification is 1.5D*38mm, the strength is 3.5cn / dtex, and the el...

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Abstract

The invention discloses a production process of fast biodegradable porous polyester fiber. By proportionally adding soluble slices containing biodegradable additives to polyester and blending with thepolyester, then soluble substances in the fiber are placed in a dissolved solution to dissolve the soluble substances, the fiber is enabled to form porous fiber or textiles, and cavities in the fiberstructure accelerate the degradation of a polyester material by biomass to prepare the fast biodegradable porous polyester fiber.

Description

technical field [0001] The invention relates to the technical field of fiber degradation, in particular to a production process of rapidly biodegradable porous polyester fibers. Background technique [0002] The use of microorganisms to biodegrade polyester to protect the environment has been researched and applied for many years. The current method is to mix and granulate a certain proportion of biodegradable additives with polyester chips in the production of polyester fibers to form biodegradable additive masterbatches. When spinning polyester fibers, this masterbatch is added to form Make polyester fiber biodegradable polyester fiber. [0003] The biodegradable additive has a certain degree of hydrophilicity, and within a certain period of time, it can cause chain forging hydrolysis of polyester fibers, and in the presence of microorganisms, it can cooperate with microorganisms to decompose polyester fibers into small molecular compounds , to achieve the effect of biod...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01F11/08
CPCD01F6/92D01F1/10D01F11/08
Inventor 余燕平
Owner BOJU SHANGHAI ECOLOGICAL TECH CO LTD
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