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Bonding technology of dual-component polyurethane adhesive applied to polyurethane-rubber composite tyre

A polyurethane adhesive, two-component polyurethane technology, applied in the direction of polyurea/polyurethane adhesive, adhesive, adhesive type, etc., can solve the problem of bonding polyurethane tread and rubber carcass, and achieve water resistance Good, long-term use, low-cost effect

Active Publication Date: 2015-05-20
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the tire of this structure has produced a new technical problem, namely the bonding problem of polyurethane tread and rubber carcass.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Add 11.1 parts by weight of trichloroisocyanuric acid into 88.9 parts by weight of ethyl acetate, stir and dissolve evenly.

[0018] 2. Brush or spray the surface treatment agent in step 1 evenly after cleaning the surface of the rubber carcass, leave it for 30 minutes, and then brush 1mm thick, TDI modified polyethylene adipate (50% acetone / ethyl acetate solution) and TDI-TMP adduct (25% ethyl acetate solution) with a mass ratio of 5:1 two-component polyurethane adhesive (containing 0.5% VTPS), put it in an oven at 50°C for 5 Minutes, and then brush a 2mm thick two-component polyurethane adhesive (containing 0.5% VTPS) of the same composition, put it in an oven at 50 ℃ for 12 minutes.

[0019] 3. Clean up the polished polyurethane tread, then bond the rubber tread, apply a pressure of 3MPa, cure at 120°C for 2 hours, and leave it at room temperature for 48 hours. The measured peel strength is 387.6 kg per meter.

Embodiment 2

[0021] 1. Add 13 parts by weight of trichloroisocyanuric acid into 87 parts by weight of ethyl acetate, stir and dissolve evenly.

[0022] 2. Brush or spray the surface treatment agent in step 1 evenly after cleaning the surface of the rubber carcass, leave it for 40 minutes, and then brush 1mm thick, TDI modified polyethylene adipate (50% Acetone / ethyl acetate solution) and TDI-TMP adduct (25% ethyl acetate solution) with a mass ratio of 5:1 two-component polyurethane adhesive (containing 0.5% VTPS), put it in an oven at 55 ° C for 5 After 10 minutes, apply a 1mm thick two-component polyurethane adhesive (containing 0.5% VTPS) with the same composition, and put it in an oven at 55°C for 10 minutes.

[0023] 3. Clean up the polished polyurethane tread, then bond the rubber tread, apply a pressure of 4MPa, cure at 120°C for 3 hours, and leave it at room temperature for 48 hours. The measured peel strength is 418.2 kg per meter.

Embodiment 3

[0025] 1. Add 14.8 parts by weight of trichloroisocyanuric acid into 85.2 parts by weight of ethyl acetate, stir and dissolve evenly.

[0026] 2. Brush or spray the surface treatment agent in step 1 evenly after cleaning the surface of the rubber carcass, leave it for 50 minutes, and then brush 2mm thick, TDI modified polyethylene adipate (50% acetone / ethyl acetate solution) and TDI-TMP adduct (25% ethyl acetate solution) with a mass ratio of 5:1 two-component polyurethane adhesive (containing 0.5% VTPS), put it in an oven at 60°C for 5 Minutes, and then brush a 2mm thick two-component polyurethane adhesive (containing 0.5% VTPS) of the same composition, put it in an oven at 60°C for 12 minutes.

[0027] 3. Clean the polished polyurethane tread, then glue the rubber tread, apply a pressure of 3MPa, cure at 140°C for 2 hours, and leave it at room temperature for 48 hours. The measured peel strength is 357 kg per meter.

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Abstract

The invention discloses a bonding technology of a dual-component polyurethane adhesive applied to a polyurethane-rubber composite tyre and belongs to the manufacturing technology of a novel composite tyre. The bonding technology comprises the following steps of: roughening the surface of a rubber tyre body, cleaning and brushing or spraying an ethyl acetate solution of trichloroisocyanuric acid, and standing for 0.5-1 hour; brushing a dual-component polyurethane adhesive (containing 0.5% of VTPS) in which the mass ratio of TDI modified polyethylene glycol adipate (50% acetone / ethyl acetate solution) to TDI-TMP addition product (25% ethyl acetate solution) is 5:1, and drying at 50-60 DEG C for 5-10 minutes; brushing the same dual-component polyurethane adhesive once again, and drying at 50-60 DEG C for 10-15 minutes; cleaning the surface of the polished polyurethane tyre, and bonding with the rubber tyre surface; applying a pressure of 1-5MPa; and curing at 110-140 DEG C for 2-3 hours. The bonding technology disclosed by the invention has the advantages of simple process, low cost and good water resistance, is convenient to implement and realizes firm bonding effect.

Description

technical field [0001] The invention belongs to the manufacturing technology of a novel composite tire, and in particular relates to a bonding process of a polyurethane tread and a rubber carcass. Background technique [0002] As we all know, as a tire tread material, rubber has always had disadvantages such as poor durability, wear resistance and tear resistance, while polyurethane materials have high elasticity, excellent wear resistance, and good oil resistance, ozone resistance and low temperature performance. And other characteristics, it is an alternative tread material. [0003] The research on applying polyurethane to tires began in the 1960s, and many well-known companies in the world are devoting themselves to research on polyurethane tires, such as goodyear, firestone, LIM, UTI, etc. After polyurethane tires have gone through full polyurethane pneumatic tires, partial polyurethane pneumatic tires and polyurethane solid tires, the current research direction is tir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/12C09J175/06
Inventor 毛立新张晨昊何钰张立群
Owner BEIJING UNIV OF CHEM TECH
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