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Silicone-modified polyurethane fiber and method for manufacturing same

一种制造方法、有机硅的技术，应用在单组分聚氨酯人造长丝、非织造布、纺织品和造纸等方向，能够解决耐粘连性差、加工性差、防水性不充分等问题，达到纺丝性优异的效果

Active Publication Date: 2018-11-23
SHIN ETSU CHEM CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] So far, polyurethane resin nanofibers have been reported (Patent Documents 4 and 5), but they have low sliding properties, softness, blocking resistance, and insufficient water resistance depending on the application, which has become a problem.
In addition, nanofibers made of silicone resin (patent document 6) and silsesquioxane (patent document 7) have also been reported, but there are deficiencies in fibers made of such three-dimensional high-density crosslinked silicone resins. Problems with poor flexibility and workability

Method used

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  • Silicone-modified polyurethane fiber and method for manufacturing same
  • Silicone-modified polyurethane fiber and method for manufacturing same
  • Silicone-modified polyurethane fiber and method for manufacturing same

Examples

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Effect test

Embodiment

[0133] Hereinafter, the present invention will be specifically explained based on Examples and Comparative Examples, but the present invention is not limited to these Examples. It should be noted that the "parts" and "%" in the examples and comparative examples are based on quality unless otherwise specified. In addition, the evaluation items in the following examples and comparative examples were implemented by the method described below.

[0134] In addition, in the following examples, the number average molecular weight (Mn) is a value in terms of polymethyl methacrylate (PMMA) measured by gel permeation chromatography (GPC). In addition, the GPC measurement was performed under the conditions of an apparatus: HLC-8320GPC (manufactured by Tosoh Corporation), a solvent: tetrahydrofuran (THF), and a resin concentration: 0.1%.

[0135]

Synthetic example 1

[0136] (Synthesis Example 1: Synthesis of SiPU1)

[0137] Prepare a reaction vessel with a stirrer, a reflux condenser, a thermometer, a nitrogen blowing pipe, and an opening. While replacing the inside of the reaction vessel with nitrogen, 200g of polytetramethylene glycol (trade name "PolyTHF1000", manufactured by BASF Japan, number average molecular weight 1,000, hydroxyl value 113mgKOH / g), 1,4-butane Diol 38g, single-end type organosilicon diol (in formulas (1) and (2), compound (1-1), n=10) 50g, dimethylformamide (DMF) 686.4g. Heating and stirring were started, and after the system became uniform, 169.6 g of 4,4'-methylenebis(phenylene isocyanate) (MDI) was added at 50°C, and then the temperature was raised to 80°C for reaction. The reaction was allowed to proceed until 2,270 cm from the free isocyanate group measured by infrared absorption spectroscopy. -1 The absorption disappears. Then, 61.0 g of DMF and 320.3 g of methyl ethyl ketone (MEK) were added to obtain a soluti...

Synthetic example 2

[0138] (Synthesis Example 2: Synthesis of SiPU2)

[0139] Prepare a reaction vessel with a stirrer, a reflux condenser, a thermometer, a nitrogen blowing pipe, and an opening. While replacing the inside of the reaction vessel with nitrogen, 200g of polytetramethylene glycol (trade name "PolyTHF1000", manufactured by BASF Japan, number average molecular weight 1,000, hydroxyl value 113mgKOH / g), 1,4-butane Diol 38g, single-end type silicone diol (in formula (1), (2), compound (1-1), n=25) 48g, dimethylformamide (DMF) 669.0g. Heating and stirring were started, and after the system became uniform, 160.6 g of 4,4'-methylenebis(phenylene isocyanate) (MDI) was added at 50°C, and then the temperature was raised to 80°C for reaction. The reaction was allowed to proceed until 2,270 cm from the free isocyanate group measured by infrared absorption spectroscopy. -1 The absorption disappears. Then, 59.5 g of DMF and 312.6 g of methyl ethyl ketone (MEK) were added to obtain a solution of a s...

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Abstract

A fiber formed from a resin including a silicone-modified polyurethane resin comprising the reaction products of a polyol (A), a chain extender (B), an active-hydrogen-group-containing organopolysiloxane (C), and a polyisocyanate (D), wherein the active-hydrogen-group-containing organopolysiloxane (C) contains an active-hydrogen-group-containing organopolysiloxane (C-1) having a carbinol group atonly one terminal.

Description

Technical field [0001] The present invention relates to a fiber formed of a resin containing a silicone-modified polyurethane resin and a method for manufacturing the fiber. Background technique [0002] Generally, resin fibers are mainly obtained by dry spinning method, melt spinning method according to the type, wet spinning method and other methods. As a method of manufacturing a fiber structure with a small fiber diameter, an electrospinning method (electrospinning, electrospinning, and melt electrospinning) is known (for example, refer to Patent Documents 1 to 3). The so-called electrospinning method is to apply a high voltage between the nozzle tip of a syringe and the collector substrate in which a solution containing a polymer and a melt made by melting the polymer is charged, and the polymer is made extremely fine by the repulsive force of static electricity. It is a spinning method that captures the polymer at the same time to obtain an ultra-fine fiber structure and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/70C08G18/61C08G18/65D04H1/4358D04H1/728
CPCC08G18/65D04H1/4358D04H1/728D01F6/70C08G18/61C08G18/7671C08G18/755C08G18/4854C08G18/6674C08G18/4009C08G18/12C08G18/3206D01D5/0007C08G18/3234C08G18/1816C08G18/1883D01D5/003
Inventor 服部初彦田中正喜佐藤浩正饭野匠太梅津基昭田中稔久近藤干寿
Owner SHIN ETSU CHEM CO LTD
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