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Improved impregnation formula for adhesion of terylene tyre cord and rubber and preparation method thereof

A cord and polyester technology, applied in the field of polymer chemistry, can solve the problems of high toxicity of blocked isocyanates, and achieve the effects of avoiding high toxicity, reducing costs, and improving bond strength

Inactive Publication Date: 2007-07-18
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a dipping formula and preparation method for improving the bonding of polyester cord and rubber, to improve the performance of polyester / rubber interface bond strength, to solve the environmental problems caused by the high toxicity of blocked isocyanate, and to simplify Process flow, reduce production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Heat the mixture of 71 grams of polyethylene oxide diol and 5 grams of dihydroxypropionic acid to 140°C, then cool to 60°C, add 24g of TDI in batches, stir at 80°C for 3-6 hours, and the NCO content of the prepolymer is about 6% (mass ). Dissolve 0.9 g of triethylamine into 42 g of water and stir vigorously to form an emulsion with a solid content of about 37%. Take 19 grams of the above-mentioned emulsion, add 0.1ml of ammonia water (28%), 5 grams of water and 1.3 grams of methacrylic acid thickener, stir evenly to obtain a water-soluble resin with a solid content of about 30%; add 9 grams of N-methylolacrylamide , 1.35 grams of sodium alkyd, 141 grams of water and 10% ammonium persulfate were stirred and polymerized at 70°C, and then 126 grams of ethyl acrylate, 4.5 grams of acrylic acid, 4.5 grams of N-methylolacrylamide, and 15 grams of acrylic acid were added. Nitrile and 4.5 grams of 10% ammonium persulfate were stirred at 70°C for 4 to 6 hours to obtain a solid ...

Embodiment 2

[0022] Heat the mixture of 71 grams of polyethylene oxide diol and 5 grams of dihydroxypropionic acid to 140°C, then cool to 60°C, add 24g of TDI in batches, stir at 80°C for 3-6 hours, and the NCO content of the prepolymer is about 6% (mass ). Dissolve 0.9 g of triethylamine into 42 g of water and stir vigorously to form an emulsion with a solid content of about 37%. Take 19 grams of the above-mentioned emulsion, add 0.1ml of ammonia water (28%), 5 grams of water and 1.3 grams of methacrylic acid thickener, stir evenly to obtain a water-soluble resin with a solid content of about 30%; add 9 grams of N-methylolacrylamide , 1.35 grams of sodium alkyd, 141 grams of water and 10% ammonium persulfate were stirred and polymerized at 70°C, and then 126 grams of ethyl acrylate, 4.5 grams of acrylic acid, 4.5 grams of N-methylolacrylamide, and 15 grams of acrylic acid were added. Nitrile and 4.5 grams of 10% ammonium persulfate were stirred with 70°C for 4 to 6 hours to obtain a soli...

Embodiment 3

[0024] Heat the mixture of 71 grams of polyethylene oxide diol and 5 grams of dihydroxypropionic acid to 140°C, then cool to 60°C, add 24g of TDI in batches, stir at 80°C for 3-6 hours, and the NCO content of the prepolymer is about 6% (mass ). Dissolve 0.9 g of triethylamine into 42 g of water and stir vigorously to form an emulsion with a solid content of about 37%. Take 19 grams of the above-mentioned emulsion, add 0.1ml of ammonia water (28%), 5 grams of water and 1.3 grams of methacrylic acid thickener, stir well to obtain a water-soluble resin with a solid content of about 30%; add 9 grams of N-methylolacrylamide , 1.35 grams of sodium alkyd, 141 grams of water and 10% ammonium persulfate were stirred and polymerized at 70°C, and then 126 grams of ethyl acrylate, 4.5 grams of acrylic acid, 4.5 grams of N-methylolacrylamide, 15 grams of acrylic acid were added Nitrile and 4.5 grams of 10% ammonium persulfate were stirred with 70°C for 4 to 6 hours to obtain a solid conte...

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PUM

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Abstract

The present invention relates to recipe and preparation process of improved glue for adhering dacron fabric cord to rubber. The improved glue consists of water soluble polyurethane with carboxyl group or sulfonyl group containing chain expander, acrylate emulsion and butyronitrile latex. It can raise the adhesion strength of the dacron / rubber interface and improve the heat performance of the interface greatly. Its preparation process includes the steps of: preparing water soluble polyurethane, preparing acrylate emulsion, and adding water soluble polyurethane and preparing acrylate emulsion into butyronitrile latex. The present invention has environment friendship, low cost and convenient use.

Description

technical field [0001] The invention belongs to the field of macromolecule chemistry, and in particular relates to a dipping formula and a preparation method for improving the adhesion between polyester cord and rubber. Background technique [0002] Polyester cord is widely used as a reinforcement material for rubber tires in the fields of radial tires, rubber hoses, water hoses, etc. In my country, nylon cords are still dominant, but nylon cords cannot be used as reinforcements for radial tires and will gradually be used as reinforcements for radial tires. Ester cord, steel cord replacement. Due to the low activity of the polyester cord surface, the traditional resorcinol-formaldehyde-latex (RFL) composite dipping solution cannot produce a good bonding effect on the interface, so it is necessary to develop a dipping solution with better comprehensive properties Formulated to meet the growing polyester cord market [0003] To improve the bonding performance of polyester cor...

Claims

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Application Information

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IPC IPC(8): D06M15/693D06M23/00D02G3/48D06M15/564D06M15/263D06M101/32
Inventor 袁爱春胡祖明刘兆峰潘碗莲于俊荣陈蕾诸静
Owner DONGHUA UNIV
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