Novel styrene block copolymer mixture elastic fiber and manufacturing method thereof

A styrene block, elastic fiber technology, applied in the direction of conjugated synthetic polymer rayon, rayon manufacturing, fiber chemical characteristics, etc., can solve problems such as inability to use directly, cannot withstand dyeing, drying and heat setting, etc.

Active Publication Date: 2019-07-30
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

Therefore, the styrene block copolymer elastic fiber produced by the traditional method will not be able to withstand the normal process temperature requirements such as dyeing, drying and heat setting of textile fabrics or elastic cords, and cannot be directly applied to the field of textile fabrics or elastic cords. go to the market

Method used

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

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Experimental program
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Embodiment

[0091] The present invention will be further described in detail through the following examples.

[0092] The components shown in Table 1 were fully dried in advance, added to a small high-speed mixer for mixing, and then transported to a twin-screw extruder for mixing and granulation to produce 5-10 kg of granular experimental samples.

[0093] The melt flow rate:

[0094] According to GB / T3682-2000 "Determination of Melt Flow Rate and Melt Volume Flow Rate of Thermoplastics", the melt flow rate of the obtained styrene block copolymer mixture particles was measured at 250°C and a load of 2.16kg. The results are shown in Table 1.

[0095] Composition and content (% by weight) of the styrene block copolymer mixture of table 1

[0096]

[0097] Note:

[0098] 1) Ethylene-octene block copolymer, INFUSE-9107, supplier Dow Chemical, melt index (190°C / 2.16kg): 1.0, density: 0.866g / cm 3 ;

[0099] 2) Ethylene-octene block copolymer, INFUSE-9507, supplier Dow Chemical, melt in...

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Abstract

The object of the invention is to provide a manufacturing method of a novel styrene block copolymer mixture elastic fiber. A direct result of the invention is to provide a polyolefin elastic fiber which does not require crosslinking. The elastic fiber has sufficient elasticity and heat resistance without irradiation, can meet the temperature requirements of normal processes such as dyeing, dryingand heat setting of most textile fabrics or elastic cords, and significantly reduces the production cost and simplifies the production process. A novel styrene block copolymer mixture is mainly prepared from a grafted styrene block copolymer A and crystalline thermoplastic engineering plastic B according to a weight ratio of 90:10 to 70:30. The styrene block copolymer A is a grafted styrene blockcopolymer, and the crystalline thermoplastic engineering plastic B has a density of 0.90 to 1.40 g/cm<3> and a melting point between 160 and 260 DEG C.

Description

technical field [0001] The present invention relates to a manufacturing method of a novel styrene block copolymer mixture elastic fiber; and a styrene block copolymer mixture elastic fiber made by the manufacturing method; and the elastic fiber is used in various textile Applications in areas such as fabrics or elastic cords. 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, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/10D01F8/12D01F1/10
CPCD01F8/10D01F8/12D01F1/10
Inventor 张连根
Owner 上海梦丝新材料科技有限公司
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