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Anticorrosion adhesive for rubber liner of fire hose and preparation method thereof

A fire hose, anti-corrosion technology, applied in the direction of adhesives, wax adhesives, adhesive types, etc., can solve the problems of poor temperature resistance, unsuitable for the production of fire hose lining rubber, etc., to achieve low polarity , Improve the cohesive energy and fluidity, improve the effect of infiltration and permeability

Inactive Publication Date: 2011-09-07
5ELEM HI TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature resistance of this technical product is not good, and it is only suitable for use in established fields, not suitable for the production of rubber lining for fire hoses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] To produce 1000kg of anti-corrosion adhesive for fire hose lining, its components include 70% ethylene-acrylic acid copolymer resin, 17% carbon 5 resin, 8% wax, 1% antioxidant and 4% DOPT. The main part of the component is ethylene acrylic acid copolymer resin. The highly saturated main chain of this material has almost no double bonds, regular molecules, and low polarity. It can be used for a long time in an acid-base environment with a concentration of less than 30%. It can also be used in a concentrated sulfuric acid environment for a short period of time. After the tackifier carbon 5 resin is melted, it can significantly improve the infiltration and permeability of the ethylene-acrylic acid copolymer resin, and improve the cohesive energy and fluidity of the resin. Wax is a viscosity modifier, and the softening point of wax is much lower than that of ethylene-acrylic acid copolymer resin, so as to adjust the solidification speed. Antioxidant used in the present inv...

Embodiment 2

[0023] This example has the same components and preparation method as Example 1, only the component ratio and preparation process parameters are slightly adjusted, and its technical effect is similar to that of Example 1. The components of this example are: ethylene-acrylic acid copolymer resin 65%, carbon 5 resin 20%, wax 10%, antioxidant 0.5% and DOPT 4.5%. The above components were synthesized in sequential steps under the following conditions:

[0024] First preheat the reactor, the temperature is controlled at 70°C to 80°C, then sequentially add DOPT and wax, heat for 40 minutes, add 2064 antioxidant after DOPT and wax melt, stir evenly with conventional methods, then raise the temperature of the reactor to 120°C ~135°C, add ethylene-acrylic acid copolymer resin in 3 batches, stir for 20min~25min by conventional methods, and finally obtain the target product.

Embodiment 3

[0026] This example has the same components and preparation method as Example 1, only the component ratio and preparation process parameters are slightly adjusted, and its technical effect is similar to that of Example 1. The components of this example are: ethylene-acrylic acid copolymer resin 75%, carbon 5 resin 15%, wax 6%, antioxidant 1% and DOPT 3%. The above components were synthesized in sequential steps under the following conditions:

[0027] First preheat the reactor, the temperature is controlled at 90°C to 100°C, then sequentially add DOPT and wax, heat for 40 minutes, add BHT antioxidant after DOPT and wax melt, stir evenly with conventional methods, then raise the temperature of the reactor to 140°C ~150℃, add ethylene-acrylic acid copolymer resin in 3 batches, stir for 20min~30min by standard method, and finally obtain the target product. The performance comparison and test conditions list of this technology product and the prior art product are as follows:

...

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Abstract

The invention discloses an anticorrosion adhesive for a rubber liner of a fire hose, which consists of the following components in percentage by weight: 64 to 75 percent of ethylene-acrylic acid copolymer resin, 5 to 20 percent of C5 resin, 6 to 10 percent of wax, 0.5 to 1 percent of antioxidant and 3 to 5 percent of dioctyl terephthalate (DOPT). A preparation method comprises the following steps of: preheating a reaction kettle to the temperature of between 70 and 100 DEG C, adding the DOPT and the wax in turn, adding the antioxidant after the DOPT and the wax are heated and melted in the reaction kettle, and uniformly stirring; adding the C5 resin, and uniformly stirring; and raising the temperature of the reaction kettle to be between 120 and 150 DEG C, adding the ethylene-acrylic acid copolymer resin in batches, and stirring for 15 to 30 minutes to obtain a target product. The adhesive prepared by the method has high bonding strength, stable property, corrosion resistance and high-temperature resistance, completely meets the technical specification requirement of the rubber liner of the fire hose, and also can be used for producing the rubber liner of an agricultural water delivery pipe or an industrial water pipe similar to the fire hose.

Description

technical field [0001] The invention relates to a chemically synthesized adhesive, in particular, the invention relates to an adhesive used for lining rubber of fire hoses. The invention also relates to a method for preparing the adhesive. Background technique [0002] The fire hose is a pressure-bearing flexible pipe fitting. Because of its special structure, it is not easy to seal the pipe wall, especially the pipe wall seal of the high-pressure fire hose is more difficult. The main body of the fire hose pipe wall is a fiber braided layer, and the fiber braided layer alone is not enough to meet the sealing requirements. The conventional technical measure is to line the inner or outer wall of the fiber braided layer with rubber to enhance the sealing performance of the pipe wall. Today, chemically synthesized adhesives are commonly used in the fire hose manufacturing industry as the bonding layer between the braid and the backing. Existing chemically synthesized adhesives...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J157/02C09J191/06C09J9/00
Inventor 毛秋王金马
Owner 5ELEM HI TECH CORP
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