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Novel block copolymer mixture elastic fiber and manufacturing method thereof

A technology of block copolymer and elastic fiber, which is applied in the field of manufacturing elastic fiber of new block copolymer mixture, can solve the problems of limitation degree, elongation at break and elastic recovery rate that are not as good as those of spandex.

Active Publication Date: 2019-09-17
上海梦丝新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, TPEE elastic fiber also has some disadvantages, such as its elongation at break and elastic recovery rate are not as good as spandex, which limits the extent of its replacement of spandex

Method used

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  • Novel block copolymer mixture elastic fiber and manufacturing method thereof
  • Novel block copolymer mixture elastic fiber and manufacturing method thereof
  • Novel block copolymer mixture elastic fiber and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] In Example 1, no ultra-high molecular weight silicone powder was added. During the process of melting and mixing raw materials for granulation, die mouth adhesion and granulation interruption occurred twice in a row. Endless cutting will lead to material sticking, and production cannot proceed smoothly, so the next step of spinning experiment will not be carried out.

Embodiment 2

[0106] Example 2 After adding ultra-high molecular weight silicone powder, the mixed raw materials were melted and granulated smoothly, and the temperature range of the screw extruder in the subsequent spinning experiment was set as: 170°C~235°C~255°C~265°C~270°C , while the temperature of the spinning head (including the spinneret) was set at 270°C.

Embodiment 3

[0107]In Example 3, the mixed raw materials were melted and granulated smoothly after adding ultra-high-quality silicone powder, and the temperature range of the screw extruder in the subsequent spinning experiment was set as: 170°C~235°C~255°C~265°C~271°C °C, while the temperature of the spinning head (including the spinneret) was set at 271 °C.

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Abstract

The invention relates to a novel block copolymer mixture elastic fiber and a manufacturing method thereof. The method includes the steps of a, providing a novel block copolymer mixture through mixing, wherein the mixture includes at least one styrene block copolymer (SBC) A and at least one thermoplastic polyether ester elastomer (TPEE) B; b, melting the novel block copolymer mixture and then granulating the mixture again through a granulator suitable for granulating copolymers so as to obtain the novel block copolymer mixture obtained after all the components are sufficiently and evenly mixed; c, conducting melt spinning the novel block copolymer mixture to obtain an elastic fiber precursor; d, conducting curing treatment on the elastic fiber precursor to obtain a novel elastic fiber, wherein the weight ratio of the styrene block copolymers A to the thermoplastic polyether ester elastomers B is 90:10 to 10:90.

Description

technical field [0001] The present invention relates to a manufacturing method of a novel block copolymer mixture elastic fiber; and a novel block copolymer blend elastic fiber made by the manufacturing method; Applications in the field of rope and so on. Background technique [0002] Among the elastic fibers used in the field of weaving or elastic cords, spandex (scientific name "polyurethane elastic fiber", including dry-process spandex, wet-process spandex and melt-spun spandex) accounts for nearly 90% of the market share and occupies a dominant position. However, spandex has defects such as easy aging and degradation, easy breakage and relaxation, containing harmful solvents, not resistant to alkali, not resistant to chlorine bleaching, and not easy to dye dark colors. [0003] In the field of elastic cords, the use of traditional spandex fibers leads to defects such as unsustainable elastic cords, aging resistance, and reduced strength, especially elastic cords in prof...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/10D01F1/10
CPCD01F8/14D01F8/10D01F1/10
Inventor 张连根
Owner 上海梦丝新材料科技有限公司
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