Rubber canvas gumming formula, preparation method thereof and preparation method of rubber canvas

A canvas and rubber technology, applied in textiles and papermaking, fiber type, fiber treatment, etc., can solve the problems that the glue cannot be combined with two layers of canvas, and the performance decline, etc., to achieve the effect of not easy interface damage, low cost, and excellent uniformity

Pending Publication Date: 2020-05-01
浙江尤夫科技工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the glue in the prior art cannot be evenly combined with two layers of canvas, resulting in a decline in performance, and to provide a rubber canvas dipping formula and its preparation method and a preparation method of the rubber canvas

Method used

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  • Rubber canvas gumming formula, preparation method thereof and preparation method of rubber canvas
  • Rubber canvas gumming formula, preparation method thereof and preparation method of rubber canvas

Examples

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Comparison scheme
Effect test

Embodiment 1

[0034] A kind of rubber canvas dipping formula and the preparation method of rubber canvas, concrete steps are as follows:

[0035] (1) water and sodium hydroxide are mixed;

[0036] (2) Adding resorcinol and formaldehyde to the system of (1), stirring and reacting for 2 hours at a temperature of 22° C.;

[0037] (3) latex, ammoniacal liquor and water are mixed;

[0038] (4) Mix the system of (2) and the system of (3), first stir for 30 minutes, and then stand and react for 18 hours at a temperature of 18°C;

[0039] (5) Add blocked isocyanate to the system of (4), and stir for 30 minutes.

[0040] Through steps (1) to (5), the rubber canvas dipping formula is obtained, wherein, by weight percentage, resorcinol and formaldehyde account for 2%, ammonia water accounts for 0.2%, sodium hydroxide accounts for 0.02%, and latex accounts for 40%. %, blocked isocyanate accounts for 0.5%, and the balance of water, wherein the molar ratio of resorcinol to formaldehyde is 1:0.7;

[0...

Embodiment 2

[0046] A kind of rubber canvas dipping formula and the preparation method of rubber canvas, concrete steps are as follows:

[0047] (1) water and sodium hydroxide are mixed;

[0048] (2) Adding resorcinol and formaldehyde to the system of (1), stirring and reacting for 3 hours at a temperature of 23° C.;

[0049] (3) latex, ammoniacal liquor and water are mixed;

[0050] (4) Mix the system of (2) and the system of (3), first stir for 30 minutes, and then stand and react for 20 hours at a temperature of 19°C;

[0051] (5) Add blocked isocyanate to the system of (4), and stir for 30 minutes.

[0052] Through steps (1) to (5), the rubber canvas dipping formula is obtained, wherein, by weight percentage, resorcinol and formaldehyde account for 2%, ammonia water accounts for 0.3%, sodium hydroxide accounts for 0.03%, and latex accounts for 35%. %, blocked isocyanate accounts for 0.8%, and the water balance, wherein the molar ratio of resorcinol to formaldehyde is 1:0.8;

[0053...

Embodiment 3

[0055] A kind of rubber canvas dipping formula and the preparation method of rubber canvas, concrete steps are as follows:

[0056] (1) water and sodium hydroxide are mixed;

[0057] (2) Adding resorcinol and formaldehyde to the system of (1), stirring and reacting for 4 hours at a temperature of 24° C.;

[0058] (3) latex, ammoniacal liquor and water are mixed;

[0059] (4) Mix the system of (2) and the system of (3), first stir for 30 minutes, and then stand and react for 22 hours at a temperature of 20°C;

[0060] (5) Add blocked isocyanate to the system of (4), and stir for 30 minutes.

[0061] Through steps (1) to (5), the rubber canvas dipping formula is obtained, wherein, by weight percentage, resorcinol and formaldehyde account for 3%, ammonia water accounts for 0.4%, sodium hydroxide accounts for 0.04%, and latex accounts for 40%. %, blocked isocyanate accounts for 1.2%, and the water balance, wherein the molar ratio of resorcinol to formaldehyde is 1:0.9;

[0062...

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Abstract

The invention relates to a rubber canvas gumming formula, a preparation method thereof and a preparation method of rubber canvas. The gumming formula comprises the following components including, by weight, 2 -3% of resorcinol and formaldehyde, 0.02 -0.04% of catalysts, 30 -40% of latex, 0.5 -1.5% of adhesives and the balance of water, wherein the molar ratio of resorcinol to formaldehyde is 1: (0.7-1); the preparation method of the gumming formula comprises the following steps of firstly, mixing the water, the catalysts, resorcinol and formaldehyde for reaction, then mixing a reaction productwith A (latex and ammonia water or latex, ammonia water and water), and finally adding the adhesives into the mixture; and the preparation method of the rubber canvas comprises a step of finishing polyester canvas by adopting a one-bath gumming process according to the gumming formula to obtain the rubber canvas. The gumming formula of the invention is simple to prepare, and the latex and resin can be fully permeated and mixed; and the canvas prepared by the preparation method of the rubber canvas is uniformly combined with rubber.

Description

technical field [0001] The invention belongs to the technical field of rubber canvas, and relates to a rubber canvas dipping formula and a preparation method thereof, and a preparation method of the rubber canvas. Background technique [0002] With the continuous development of the rubber industry, more and more rubber products are used, among which rubber products combined with fibers and rubber are widely used, including rubber cord, rubber cord fabric, rubber canvas, etc. Among them, rubber canvas is made by weaving fibers into cloth, dipping in rubber, and then combining with rubber. It is often used in conveyor belts and other aspects. There are many types of rubber canvas, among which polyester canvas, cotton canvas, nylon fiber and aramid fiber canvas are widely used. Polyester fiber canvas is currently the most widely used, and it has the advantages of high strength, low elongation, excellent heat resistance, and moderate price. For rubber canvas, the interfacial a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/41D06M15/693D06M13/395C08G8/22D06M101/32
CPCD06M15/41D06M15/693D06M13/395C08G8/22D06M2101/32
Inventor 宋明根沈桢晁圣双王铁晗张阳张玉梅
Owner 浙江尤夫科技工业有限公司
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