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A hollow high-strength diameter poly(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament and its preparation method

A technology of -co-3-, hydroxybutyrate, applied in the field of hollow high-strength diameter polymonofilament and its preparation, can solve problems such as functionalization that has not yet occurred

Active Publication Date: 2021-11-30
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 a high-strength and diameter hollow poly(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament and a preparation method thereof. The monofilament is composed of: poly(3-hydroxybutyrate -co-3-hydroxyvaleric acid ester), inorganic nucleating agent and antioxidant; Its preparation method comprises: (1) blending after premixing by above-mentioned raw material makes poly(3-hydroxybutyrate-co-3- hydroxyvalerate) masterbatch; (2) take poly(3-hydroxybutyrate-co-3-hydroxyvalerate) masterbatch and polyvinyl acetate as the raw materials of cortex and core layer respectively, add to melt compounding Melt composite spinning is carried out in the hopper of the spinning equipment to obtain a skin-core structure poly(3-hydroxybutyrate-co-3-hydroxyvalerate) / polyvinyl acetate monofilament; (2) use a solvent to prepare The obtained monofilament is processed to obtain a poly(3-hydroxybutyrate-co-3-hydroxyvalerate) monofilament. The prepared high-strength and diameter hollow monofilament has the characteristics of good mechanical properties, light weight, and hollowness, and can be used as a raw material for 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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Patent Type & Authority Patents(China)
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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