Composition for production of fireproof textile materials

FIELD: production of fireproof materials and protective textile materials possessing specific properties.

SUBSTANCE: proposed composition contains 100 parts by mass of low-molecular siloxane rubber, 25-80 parts by mass of hardening agent and 20-60 parts by mass of ortho-titanium ester. Stability of composition may be increased at room temperature to 72 h and abrasion resistance may be increased by six times.

EFFECT: enhanced efficiency; enhanced stability and abrasion resistance.

1 tbl, 5 ex

 

The invention relates to the production of protective textile materials with special properties, namely materials with the fire-resistant coating.

The level of technology

Known composition to obtain a flame resistant textile materials containing vinyl chloride, paraffin wax, a copolymer of ethylene and vinyl acetate, antimony trioxide, calcium carbonate, zinc oxide and kaolin (U.S. Patent N 4032517, 1977).

Also known composition to obtain a flame resistant textile materials-based emulsion of polyvinyl chloride containing flame retardants (Patent of Russia No. 2101407, From 09 To 21/146, 1998).

However, the resistance of the materials obtained using such compositions, are insufficient. In addition, these compositions are intended for cotton and globalview tissues and obtained with the use of the materials have not sufficiently high physical-mechanical parameters.

Most high physical-mechanical properties with low weight have tissue-based synthetic fibers. However, when applying compositions containing flame retardants, synthetic fabrics can significantly improve the fire resistance does not occur.

Closest to the invention, the technical solution is a composition for obtaining a flame-retardant material on the basis of nylon fabric (Patent of Russia No. 2203993, D 06 M 15/643, 15/248, From 08 To 2/14, 2003), the composition consists of the following components, in parts by weight:

Low molecular weight siloxanerubber SCTN
(GOST 13835-73)100
The hardener10-15
The catalyst-accelerator2-3

As the hardener using ethyl silicate -40 (GOST 26371-74, ISM) or tetraethoxysilane (TU 6-02-708-76).

As the catalyst-accelerator is used, for example, octoate tin (catalyst 230-19) (TU 6-02-539-75) or the catalyst N 18 (TU 6-02-805-78).

In addition, the composition can be introduced to different target additives and pigments.

The disadvantage of this composition is its low stability, as it vulcanised already at room temperature. Therefore, its stability depending on the room temperature is only 20-40 minutes This significantly limits its industrial use. In addition, the coating material obtained using this composition, has low resistance to abrasion.

The invention

Inventive task was to search for a song to obtain a flame resistant textile materials, including low-molecular siloxane rubber and curing agent, which would have a higher stabilin the STU at room temperature, a coating based on it would have a higher resistance to abrasion.

The problem is solved by a composition for obtaining a flame-retardant textile materials, including low-molecular siloxane rubber SCTN and curing agent, which optionally contains ether of ortho-Titanic acid in an amount of 20-60 parts by weight per 100 parts by weight of low-molecular siloxane rubber SCTN with the following content of components, parts by weight:

Low molecular weight siloxane rubber SCTN100
The hardener25-80
Ester of ortho-Titanic acid20-60

The invention improves the stability of the composition at room temperature for up to 72 hours, and abrasion resistance of the coatings obtained with its use, ˜ 6 times in comparison with the prototype.

Information verifying the playback inventions

For carrying out the invention use the following materials. As a fabric base may be used any synthetic fabric that meets the consumer's main physico-mechanical characteristics.

As the low molecular weight siloxane rubber can be used any low molecular weight siloxane rubber SCTN (TH IS T 13835-73).

As the curing agent is a low molecular weight siloxane rubber, you can use the known hardeners such as ethyl silicate-40 (GOST 26371-74, ISM), tetraethoxysilane (TU 6-02-708-76).

The esters of ortho-Titanic acid (TU 6-09-2738-89).

When making the caramel, you can use various pigments without restrictions.

The composition is prepared by mixing in the mixer and low-molecular siloxane rubber-containing, if necessary, jammed on kraskoterke pigments hardener and ester of ortho-Titanic acid until a homogeneous mixture. Examples of use of the claimed composition to obtain a flame resistant textile materials below.

Example 1

Composition is prepared of the following composition, parts by weight:

Low molecular weight siloxane rubber SCTN grade100
Ethyl silicate-4025
Tetrabutoxide25
The chromium trioxide7
CZK yellow lead1,5

The composition is applied on nylon fabric art 56007 knife or roller squeegee followed by heat treatment for 2.5 min at 160°With one stroke on spreading-unit. The thickness of the cured coating of 0.1 mm

Example 2

Prepare the comp is the position of the following composition, parts:

Low molecular weight siloxane rubber SCTN grade B100
The tetraethoxysilane50
Tetraethoxysilane30
The chromium trioxide10
CZK yellow lead2

This composition is applied on nylon fabric art 56007 knife squeegee followed by heat treatment for 2 minutes at 165°two strokes on spreading-unit. The thickness of the cured coating of 0.15 mm

Example 3

Composition is prepared of the following composition, parts by weight:

Low molecular weight siloxane rubber SCTN grade100
Ethyl silicate-4040
Tetraisopropoxide20

The composition is applied on nylon fabric art 56007 knife squeegee followed by heat treatment for 3 minutes at 155°With one stroke on spreading-unit. The thickness of the cured coating of 0.2 mm

Example 4

Composition is prepared of the following composition, parts by weight:

Low molecular weight siloxane rubber SCTN brand100
Ethyl silicate-4060
Tetrapropoxide60
Carbon black P-80310

The composition is applied on the pet fabric art. 5040 blade squeegee with a subsequent heat treatment for 2.5 min at 160°two strokes on spreading-unit. The thickness of the cured coating of 0.15 mm

Example 5

Composition is prepared of the following composition, parts by weight:

Low molecular weight siloxane rubber SCTN mark G100
Ethyl silicate-4080
Tetrabutoxide40
The chromium trioxide5

This song put on Mylar fabric art. 5040 knife or roller squeegee followed by heat treatment for 2 minutes at 165°two strokes on spreading-unit. The thickness of the cured coating of 0.2 mm

Assessment of fire resistance of the material was performed according to THE 8318-011-10725219-96, section 3.9.

Friability was determined according to GOST 8975-75 with changes 1, 2, 3 for 1000 rpm when the load weight 0.5 kg

The stability of the composition at room temperature, the resistance of the material and the abrasion of the coatings according to the invention and the prototype was determined in the same way.

The data given in the table.

From these data it is seen that all materials provided, including the prototype, maintain IP is itania fire on THE 8318-011-10725218-96 section 3.9.

The stability of the inventive compositions is significantly higher (72 hours) compared to the prototype (35 min).

Coating materials obtained with the use of the claimed compositions have significantly higher resistance to abrasion (about 6 times) compared with the abrasion resistant coating of the prototype.

Composition to obtain a flame resistant textile materials, including low-molecular siloxane rubber SCTN and curing agent, characterized in that it further comprises a broadcast orthotitanate acid number of 20 to 60 parts by weight per 100 parts by weight of low-molecular siloxane rubber SCTN in the following, parts by weight:

Low molecular weight siloxane rubber SCTN100
The hardener25-80
Ether orthotitanate acid20-60



 

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