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Hollow high-intensity large-diameter poly-(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament and preparing method thereof

A -co-3-, hydroxybutyrate technology, applied in the field of hollow high-strength diameter poly monofilament and its preparation, can solve the problem of functionalization that has not yet appeared

Active Publication Date: 2019-05-31
JIANGSU DUWEI NEW MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there have been scholars on the high-strength diameter poly(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament and its preparation method, so far, it has not yet reported its functionalization, and functionalization Ability to increase the market competitiveness and added value of high-strength diameter poly(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilaments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Weigh 98 parts of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (the content of 3-hydroxyvalerate is 2.5mol%, and the viscosity-average molecular weight is 4.0×10 5 ), 1 part of boron nitride and 1 part of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester were dried in a vacuum oven for 12 hours (80 ° C), 12 hours (80°C) and 24 hours (60°C), then put them into a high-speed mixer and dry mix for 4min, and then blend and granulate in a twin-screw blender to obtain poly(3-hydroxybutyrate-co-3 -Hydroxyvalerate) masterbatch. The granulation temperature was 170° C., the screw speed was 75 rpm, and the melt blending time was 5 minutes.

[0029] (2) The poly(3-hydroxybutyrate-co-3-hydroxyvalerate) masterbatch made by polyvinyl acetate (viscosity-average molecular weight is 1.5×105) and melt blending is dried in a vacuum oven respectively 24 hours (60°C) and 16 hours (70°C).

[0030] (3) With dry polyvinyl acetate and poly(3-hydroxybutyrate-c...

Embodiment 2

[0033] (1) Weigh 98.5 parts of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (the content of 3-hydroxyvalerate is 5.0mol%, and the viscosity-average molecular weight is 5.0×10 5 ), 1 part of boron nitride and 0.5 part of 2,2'-methylenebis(4-methyl-6-tert-butylphenol) were dried in a vacuum oven for 12 hours (80°C), 12 hours (80°C) and 24 hours (60° C.), then put them into a high-speed mixer and dry blend for 3 minutes, and then blend and granulate in a twin-screw blender to obtain poly(3-hydroxybutyrate-co-3-hydroxyvaleric acid ester) masterbatch. The granulation temperature was 165° C., the screw speed was 75 rpm, and the melt-blending time was 5 minutes.

[0034] (2) The poly(3-hydroxybutyrate-co-3-hydroxyvalerate) masterbatch prepared by polyvinyl acetate (viscosity average molecular weight is 1.0×105) and melt blending is dried in a vacuum oven respectively 24 hours (60°C) and 16 hours (70°C).

[0035] (3) With dry polyvinyl acetate and poly(3-hydroxybutyrate-co-3-hydroxyv...

Embodiment 3

[0038] (1) Weigh 98 parts of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (the content of 3-hydroxyvalerate is 2.5mol%, and the viscosity-average molecular weight is 6.0×10 5 ), 1.5 parts of boron nitride and 0.5 parts of triethylene glycol bis-β-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate were dried in a vacuum oven for 12 hours (80°C), 12 hours (80°C) and 48 hours (50°C), and then put them into a high-speed mixer and dry mix for 3 minutes, and then blend and granulate in a twin-screw blender to obtain poly(3- Hydroxybutyrate-co-3-hydroxyvalerate) masterbatch. The granulation temperature was 170°C, the screw speed was 75rmp, and the melt blending time was 8min.

[0039] (2) The poly(3-hydroxybutyrate-co-3-hydroxyvalerate) masterbatch made by polyvinyl acetate (viscosity-average molecular weight is 3.0×105) and melt blending is dried in a vacuum oven respectively 36 hours (50°C) and 24 hours (65°C).

[0040] (3) With dry polyvinyl acetate and poly(3-hydroxybutyrate-c...

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Abstract

The invention discloses high-intensity large-diameter hollow poly-(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament and a preparing method thereof. The monofilament comprises poly-(3-hydroxybutyrate-co-3-hydroxyvalerate), an inorganic nucleating agent and an antioxidant; the preparing method includes the steps that (1) the raw materials are premixed to be blended, and poly-(3-hydroxybutyrate-co-3-hydroxyvalerate) master batches are obtained; (2) the poly-(3-hydroxybutyrate-co-3-hydroxyvalerate) master batches and polyvinyl acetate serve as raw materials of a skin layer and a core layer respectively, and are added into a material hopper of a melt composite spinning device, melt composite spinning is conducted, and skin-core-structure poly-(3-hydroxybutyrate-co-3-hydroxyvalerate) / polyvinyl acetate monofilament is obtained; (3) the prepared monofilament is treated with a solvent, and the poly-(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament is prepared. The high-intensity large-diameter hollow poly-(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament prepared with the method has the advantages of being good in mechanical property, light in weight, hollow and the like, and can serve as a raw material of industrial textiles.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a hollow high-strength poly(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament and a preparation method thereof. Background technique [0002] Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) is a class of non-petroleum-based thermoplastic polyester materials synthesized by microbial fermentation, which are renewable resources, biodegradable, melt-processable, and have properties similar to Polypropylene can replace petroleum-based polymer materials as the raw material of monofilament to solve the problems of resource shortage and environmental pollution faced by the development of monofilament. [0003] At present, scholars at home and abroad have studied high-strength poly(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilaments and their preparation methods. , Deng Bingyao. A high-strength coarse denier poly(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament and its preparation ...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01F1/08
Inventor 郭海洋刘庆生向先忠郭勇赵卫哲
Owner JIANGSU DUWEI NEW MATERIAL SCI & TECH CO LTD
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