Gum dipping formula

A formula and dipping technology, applied in the field of industrial fabrics, can solve the problems of poor high temperature resistance, damage and failure of the adhesive layer, etc., and achieve the effect of good high temperature aging performance and long service life

Inactive Publication Date: 2016-11-09
南通三荣实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main reason for the poor high temperature resistance is that the polyurethane layer formed after the first bath isocyanate self-polymerization reacts with the residual amines of the amine rubber accelerator under the action of high temperature for a long time after the rubber is vulcanized. are decomposed, resulting in failure of the adhesive layer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The invention discloses a dipping formula, including a first bath formula and a second bath formula, which are as follows in parts by weight:

[0027] Among them, the formula of the first bath includes the following contents: caprolactam blocked isocyanate 50%: 55, RF resin liquid: 35, soft water: 800, wherein, the formula of RF resin liquid is: soft water: 42, sodium hydroxide 5%: 1.0, between Hydroquinone solid: 1.3, formaldehyde 37%: 2.5.

[0028] A second bath recipe includes the following:

[0029] ①The formula of RF resin liquid is: soft water: 420, sodium hydroxide 5%: 10, resorcinol solid: 15, formaldehyde 37%: 20, RF resin liquid: 425,

[0030] ②The formula of RFL-dipping liquid is: RF resin liquid: 425, soft water: 90, VP latex 40%: 420.

[0031] Wherein, the solid weight ratio of RF resin liquid and latex L is between 1:4, and the total solid content of the final RFL-dipping liquid is between 14%.

Embodiment 2

[0033] The invention discloses a dipping formula, including a first bath formula and a second bath formula, which are as follows in parts by weight:

[0034] Wherein, the formula of the first bath includes the following contents: caprolactam blocked isocyanate 50%: 55, RF resin liquid: 60, soft water: 1000, wherein, the formula of RF resin liquid is: soft water: 52, sodium hydroxide 5%: 1.2, Hydroquinone solids: 2.0, formaldehyde 37%: 3.0.

[0035] A second bath recipe includes the following:

[0036] ①The formula of RF resin liquid is: soft water: 450, sodium hydroxide 5%: 12, resorcinol solid: 20, formaldehyde 37%: 30, RF resin liquid: 472,

[0037] ②The formula of RFL-dipping liquid is: RF resin liquid: 482, soft water: 100, VP latex 40%: 460.

[0038] Wherein, the solid weight ratio of RF resin liquid and latex L is between 1:6, and the total solid content of the final RFL-dipping liquid is between 25%.

Embodiment 3

[0040] The invention discloses a dipping formula, including a first bath formula and a second bath formula, which are as follows in parts by weight:

[0041] Among them, the formula of the first bath includes the following contents: caprolactam blocked isocyanate 50%: 55, RF resin liquid: 48, soft water: 900, wherein, the formula of RF resin liquid is: soft water: 48, sodium hydroxide 5%: 1.1, Hydroquinone solid: 1.7, formaldehyde 37%: 2.7.

[0042] A second bath recipe includes the following:

[0043] ①The formula of RF resin liquid is: soft water: 435, sodium hydroxide 5%: 11, resorcinol solid: 17, formaldehyde 37%: 25, RF resin liquid: 448,

[0044] ②The formula of RFL-dipping liquid is: RF resin liquid: 448, soft water: 95, VP latex 40%: 440.

[0045] Wherein, the solid weight ratio of RF resin liquid and latex L is between 1:5, and the total solid content of the final RFL-dipping liquid is between 18%.

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Abstract

The invention discloses a gum dipping formula which comprises a first bath formula and a second bath formula. The first bath formula includes, by weight, 55-60 parts of 50% caprolactam blocked diisocyanate, 35-60 parts of RF liquid resin and 800-1000 parts of soft water. The RF liquid resin formula includes, by weight, 42-52 parts of soft water, 1.0-1.2 parts of 5% sodium hydroxide, 1.3-2.0 parts of solid resorcinol and 2.5-3.0 parts of 37% formaldehyde. The gum dipping formula is particularly suitable for producing high-temperature-resistant conveying belts for conveying materials at temperature of 200 DEG C or above and has the advantages that a gum dripping layer is good in high temperature ageing performance, and the conveying belts are long in service life.

Description

technical field [0001] The invention relates to the technical field of industrial fabrics, in particular to a dipping formula. Background technique [0002] Polyester industrial textiles use polyester industrial yarn as the main raw material. Polyester industrial yarn has become the main raw material of industrial textiles due to its high strength, high modulus, high temperature resistance and other excellent properties. Mechanical rubber products-rubber conveyor belts, transmission belts 1. The skeleton material necessary for rubber hoses has been basically polyesterized at present. The melting point of polyester material is 264°C, and it has good heat resistance. Therefore, polyester dipped canvas has generally replaced the earlier cotton canvas, and it has shown its strong advantages in the application fields of various high-temperature resistant conveyor belts. [0003] For the transportation of coal slag in power plants, sintered ore and slag in iron and steel plants, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M15/41C08G8/22D06M101/32
CPCD06M15/564C08G8/22D06M15/41D06M2101/32
Inventor 周其福
Owner 南通三荣实业有限公司
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