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Polyester thermal fuse with low melting point and good elasticity

A low melting point, hot fuse technology, applied in the direction of one-component copolyester rayon, etc., can solve the problems of general elasticity, deformation, and inability to fully recover the hot fuse, and achieve excellent mechanical properties, lower melting point, elasticity, etc. Good results

Inactive Publication Date: 2019-09-27
张先玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing low-melting point polyester hot-melt yarn has average elasticity. When it is stretched by 4% to 5%, it cannot be fully recovered, and it is easy to cause deformation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A low-melting polyester thermal fuse with good elasticity, using a certain molar ratio of organic dibasic acid, organic tribasic acid and α-propylene glycol as modifiers, and using modifiers, terephthalic acid and ethylene glycol as raw materials , Using ethylene glycol antimony as a catalyst, modified high polymer prepared by esterification reaction and polycondensation reaction, and then spun into polyester thermal fuse fiber.

[0020] Further, the organic dibasic acid is a long-chain fatty dibasic acid.

[0021] Further, the long-chain fatty dibasic acid is isophthalic acid.

[0022] Further, the organic tribasic acid is maleopimaric acid.

[0023] Further, the molar ratio of organic dibasic acid, organic monobasic acid and α-propylene glycol is 8:1:3.

[0024] Further, the molar ratio of the modifier, terephthalic acid and ethylene glycol is 0.8:12:24.

[0025] Further, the mass fraction of the ethanol solution of hexamethyldisilazane is 10%.

[0026] Further, the esterificati...

Embodiment 2

[0030] A low-melting polyester thermal fuse with good elasticity, using a certain molar ratio of organic dibasic acid, organic tribasic acid and α-propylene glycol as modifiers, and using modifiers, terephthalic acid and ethylene glycol as raw materials , Using ethylene glycol antimony as a catalyst, modified high polymer prepared by esterification reaction and polycondensation reaction, and then spun into polyester thermal fuse fiber.

[0031] Further, the organic dibasic acid is a long-chain fatty dibasic acid.

[0032] Further, the long-chain fatty dibasic acid is isophthalic acid.

[0033] Further, the organic tribasic acid is maleopimaric acid.

[0034] Further, the molar ratio of organic dibasic acid, organic monobasic acid and α-propylene glycol is 8:1:5.

[0035] Further, the molar ratio of the modifier, terephthalic acid and ethylene glycol is 1.2:12:24.

[0036] Further, the mass fraction of the ethanol solution of hexamethyldisilazane is 10%.

[0037] Further, the esterificati...

Embodiment 3

[0041] A low-melting polyester thermal fuse with good elasticity, using a certain molar ratio of organic dibasic acid, organic tribasic acid and α-propylene glycol as modifiers, and using modifiers, terephthalic acid and ethylene glycol as raw materials , Using ethylene glycol antimony as a catalyst, modified high polymer prepared by esterification reaction and polycondensation reaction, and then spun into polyester thermal fuse fiber.

[0042] Further, the organic dibasic acid is a long-chain fatty dibasic acid.

[0043] Further, the long-chain fatty dibasic acid is isophthalic acid.

[0044] Further, the organic tribasic acid is maleopimaric acid.

[0045] Further, the molar ratio of organic dibasic acid, organic monobasic acid and α-propylene glycol is 8:1:4.

[0046] Further, the molar ratio of the modifier, terephthalic acid and ethylene glycol is 1.0:12:24.

[0047] Further, the mass fraction of the ethanol solution of hexamethyldisilazane is 10%.

[0048] Further, the esterificati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a polyester thermal fuse with a low melting point and good elasticity, and relates to the technical field of new materials. Organic dibasic acid, organic tribasic acid and alpha-propylene glycol of a certain molar ratio are adopted as modifiers, a modified high polymer is prepared by using the modifiers, terephthalic acid and ethylene glycol as raw materials through esterification reaction and polycondensation reaction, and then the polyester thermal fuse fiber is made by spinning. The polyester thermal fuse has the low melting point, excellent mechanical properties and good elasticity; when the polyester thermal fuse is elongated by 6.14%-7.05%, the polyester thermal fuse can be almost completely recovered; the wrinkle resistance of the polyester thermal fuse exceeds that of other fibers; the melting point range of the polyester thermal fuse is 118-138 DEG C.

Description

Technical field [0001] The invention belongs to the technical field of new materials, and specifically relates to a low-melting polyester thermal fuse with good elasticity. Background technique [0002] Ethylene terephthalate (PET for short), also known as polyester, is a thermoplastic polymer with excellent performance, widely used in many fields such as fibers, films, and plastics. [0003] Thermal fuse, also known as low melting point fiber, is one of the most rapidly developing functional fibers in recent years. Thermal fuse is divided into polyester thermal fuse and nylon thermal fuse. The melting point can be controlled between 85°C and 180°C by adjusting the characteristics of raw materials. At room temperature, the thermal fuse is woven with other fibers to form a fabric, and then pressure is applied to the fabric under dry heat or moist heat. When the temperature is higher than the melting point of the thermal fuse, the thermal fuse gradually melts. At this temperature, ...

Claims

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Application Information

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IPC IPC(8): D01F6/84C08G63/20C08G63/553
CPCC08G63/20C08G63/553D01F6/84
Inventor 张先玉
Owner 张先玉
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