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One-component polyurethane textile machine coating and preparation method thereof

A technology of textile machinery and polyurethane, which is applied in the field of one-component polyurethane textile machinery coating and its preparation, and can solve the problems of heat resistance, low hardness, low impact strength, etc.

Inactive Publication Date: 2015-01-07
JIANGSU KANG BAISI MECHANICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application aims at the technical problems of low hardness, low impact strength, easy volatilization, poor water resistance and no heat resistance of existing water-soluble coatings, and provides a textile machinery coating using one-component polyurethane and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 100 parts of castor oil, 10 parts of citric acid, 5 parts of pentaerythritol, 30 parts of rosin, 10 parts of toluene diisocyanate, 15 parts of titanium dioxide, 2 parts of butanol, 20 parts of silicon dioxide, 5 parts of algae earth, 1 part of bentonite, 15 parts of nitrocellulose, 6 parts of tricresyl phosphate, 10 parts of dicyclohexyl phthalate, and 5 parts of iron oxide yellow.

[0024]Pour castor oil into the reaction kettle, stir at 200 rpm, heat up to 170°C, add pentaerythritol, heat up to 235°C, keep warm for 10 minutes, add citric acid and pine water, keep warm at 225°C for 10 minutes, and stir While cooling down to 75°C, add toluene diisocyanate, stir at 200 rpm for 5 minutes, then heat up to 85°C for reaction, add butanol and remaining raw materials, disperse in a sand mill to a fineness of 30 μm and discharge.

[0025] The outflow time of the product is 50s, the fineness is 25μm, and the hardness is 0.5; the surface is dry for 3 hours, and the hard dry...

Embodiment 2

[0027] Weigh 100 parts of castor oil, 30 parts of citric acid, 25 parts of pentaerythritol, 40 parts of pine water, 30 parts of toluene diisocyanate, 35 parts of titanium dioxide, 10 parts of butanol, 40 parts of silicon dioxide, and 25 parts of algae earth, 20 parts of bentonite, 25 parts of nitrocellulose, 10 parts of tricresyl phosphate, 20 parts of dicyclohexyl phthalate, 15 parts of iron oxide yellow.

[0028] Pour castor oil into the reaction kettle, stir at 300 rpm, heat up to 180°C, add pentaerythritol, heat up to 255°C, keep warm for 20 minutes, add citric acid and pine water, keep warm at 235°C for 30 minutes, and stir While cooling down to 85°C, add toluene diisocyanate, stir at 400 rpm for 10 minutes, then raise the temperature to 100°C for heat preservation reaction, add butanol and remaining raw materials, disperse in a sand mill to a fineness of 40 μm and discharge.

[0029] The outflow time of the product is 52s, the fineness is 27μm, and the hardness is 0.55; ...

Embodiment 3

[0031] Take by weight 100 parts of castor oil, 15 parts of citric acid, 10 parts of pentaerythritol, 33 parts of pine water, 15 parts of toluene diisocyanate, 20 parts of titanium dioxide, 4 parts of butanol, and 25 parts of polymethylurea resin , 10 parts of diatomaceous earth, 5 parts of bentonite, 18 parts of nitrocellulose, 7 parts of tricresyl phosphate, 14 parts of dicyclohexyl phthalate, and 9 parts of medium chrome yellow.

[0032] Pour castor oil into the reaction kettle, stir at 220 rpm, heat up to 172°C, add pentaerythritol, heat up to 240°C, keep warm for 12 minutes, add citric acid and rosin, keep warm at 228°C for 15 minutes, while stirring While cooling down to 77°C, add toluene diisocyanate, stir at 250 rpm for 6 minutes, then heat up to 88°C for reaction, add butanol and remaining raw materials, disperse in a sand mill to a fineness of 33 μm and discharge.

[0033] The outflow time of the product is 55s, the fineness is 30μm, and the hardness is 0.6; the surfa...

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Abstract

The invention discloses a one-component polyurethane textile machine coating and a preparation method thereof. The preparation method comprises the following steps of weighing castor oil, citric acid, pentaerythritol, rosin water, toluene diisocynate, titanium dioxide, butanol, a delustering agent, diatomite, bentonite, cellulose nitrate, tricresyl phosphate, dicyclohexyl phthalate and pigment; pouring the castor oil into a reaction kettle, adding pentaerythritol after heating, and reacting while heating; adding citric acid and the rosin water, and reacting while keeping the temperature of 225-235 DEG C; after cooling, adding toluene diisocynate, heating to 85-100 DEG C after stirring, and reacting while keeping the temperature; adding butanol and the rest raw materials; and dispersing in a sand mill, and discharging. The one-component polyurethane textile machine coating has the fineness of 25-35mu m, the hardness of 0.5-0.7, the impact strength of 50-60cm, the adhesive force of 1 and the flexibility of 1mm; the flow-out time of the one-component polyurethane textile machine coating is 50-60 seconds, the surface dry time is 1-3 hours, and the hard dry time is 7-9 hours; and the one-component polyurethane textile machine coating does not blister or fall off after being soaked into 30-DEG C distilled water for 4-6 days.

Description

technical field [0001] The invention relates to mechanical coatings, in particular to a one-component polyurethane textile machinery coating and a preparation method thereof, belonging to the technical field of textile machinery coatings. Background technique [0002] Various mechanical equipment required to process natural fibers or chemical fibers into textiles. Textile machinery in a broad sense also includes chemical machinery for the production of chemical fibers. Textile machinery is the production means and material basis of the textile industry. Its technical level, quality and manufacturing cost are directly related to the development of the textile industry. Textile machinery is all kinds of mechanical equipment needed to process natural fibers or chemical fibers into textiles. Although the machinery for producing chemical fibers includes a variety of chemical machinery, it is now considered an extension of textile machinery and belongs to textile machinery in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D193/04C09D7/12C08G18/76C08G18/67C08G18/32
CPCC08K2003/2241C09D175/14C08G18/32C08G18/67C08L2205/03C09D7/40C08L93/04C08L1/18C08K13/02C08K3/36C08K3/346C08K5/523
Inventor 陈凌王琰任琪程晓
Owner JIANGSU KANG BAISI MECHANICAL TECH
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