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Repairing rubber cement for tire curing capsule and preparation method thereof

A tire vulcanization and repair glue technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of lack of glue, defective tires, bead toe fillets, etc., and achieve good bonding performance , The effect of reducing production costs and reducing use costs

Active Publication Date: 2012-08-15
GUIZHOU TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vulcanizing bladders are indispensable in tire production, and their consumption is also an important part of the tire manufacturing cost. Damage to the curing bladders can lead to cracks, toe fillets and lack of rubber, and in severe cases, appearance quality defects such as delamination , resulting in waste of vulcanized tires, therefore, the vulcanizing bladder must be replaced in time when it is damaged

Method used

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  • Repairing rubber cement for tire curing capsule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: 100 kg of chlorinated butyl rubber, 40 kg of carbon black, 5 kg of zinc oxide, 1 kg of stearic acid, 5 kg of softener, 10 kg of butyl softening oil, 1.82 kg of sulfur, 3 kg of accelerator, and 0.5 kg of magnesium oxide , prepared as follows:

[0032] (1) Masterbatch mixing: set the speed of the internal mixer to 80rpm, add chlorobutyl rubber, stearic acid, zinc oxide, softener, mix for 40s, add carbon black, add oil when mixing to 170s, mix After 200s of refining, lift the plug, press the plug, and continue mixing until 240s to discharge to obtain the masterbatch;

[0033] (2) Final rubber mixing: set the speed of the front roll of the open mill to 24rpm, the speed of the rear roll to 18rpm, and the temperature of the roll to 60°C, add masterbatch, sulfur, magnesium oxide, accelerator, and mix, Botong 6 times, Make a triangular bag 6 times, and get the repair glue after degluing.

Embodiment 2

[0034] Example 2: 100 kg of chlorinated butyl rubber, 30 kg of carbon black, 2 kg of zinc oxide, 3 kg of stearic acid, 3 kg of softener, 5 kg of butyl softening oil, 1 kg of sulfur, 4 kg of accelerator, and 0.2 kg of magnesium oxide , prepared as follows:

[0035] (1) Mixing of masterbatch: set the speed of internal mixer to 70rpm, add chlorobutyl rubber, stearic acid, zinc oxide, softener, mix for 30s, add carbon black, add oil when mixing to 180s, mix Refining, lift the plug after 210s, press the plug, and continue mixing until 230s to discharge to obtain masterbatch;

[0036] (2) Final rubber mixing: set the speed of the front roller of the open mill to 22rpm, the speed of the rear roller to 16rpm, and the temperature of the roller to 65°C), add masterbatch, sulfur, magnesium oxide, accelerator, and mix, Botong 6 times , make a triangular bag 6 times, and get the repair glue after degluing.

Embodiment 3

[0037] Example 3: 100 kg of chlorinated butyl rubber, 50 kg of carbon black, 6 kg of zinc oxide, 1 kg of stearic acid, 2 kg of softener, 8 kg of butyl softening oil, 3 kg of sulfur, 0.5 kg of accelerator, and 0.8 kg of magnesium oxide , prepared as follows:

[0038] (1) Mixing of masterbatch: set the speed of internal mixer to 90rpm, add chlorobutyl rubber, stearic acid, zinc oxide, softener, mix for 50s, add carbon black, add oil when mixing to 160s, mix Refining, after 190s, lift the plug, press the plug, continue mixing until 250s, discharge, and obtain the masterbatch;

[0039] (2) Final rubber mixing: set the speed of the front roller of the open mill to 26rpm, the speed of the rear roller to 20rpm, and the temperature of the roller to 55°C), add masterbatch, sulfur, magnesium oxide, accelerator, and mix, Botong 6 times , make a triangular bag 6 times, and get the repair glue after degluing.

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Abstract

The invention discloses a repairing rubber cement for a tire curing capsule and a preparation method of the repairing rubber cement. The repairing rubber cement comprises the following components in parts by weight: 100 parts of butyl chloride cement, 30-50 parts of carbon black and the other assistant agent. According to the invention, the butyl chloride cement is taken as a main raw material, the butyl chloride cement is used for binding the repairing cement and the curing capsule when the curing capsule is repaired, so that the repairing rubber cement is good in binding performance, the curing cement can not fall off during repairing in a curing way, the capsule is well crosslinked with the repairing glue after being cured, the tire curing capsule scrapped by soft hole and mechanical damage can be reused, and the use cost of the curing capsule can be reduced, so that the production cost of the tire can be reduced.

Description

technical field [0001] The invention relates to the technical field of tire vulcanization bladders, in particular to a repair glue for tire vulcanization bladders and a preparation method thereof. Background technique [0002] Tire vulcanization is the last process in tire production. During the tire vulcanization process, the vulcanization bladder plays the role of inflating and shaping, transmitting the pressure of superheated water, ensuring that the rubber material fills the mold cavity to achieve the required contour, and transmitting the heat required for tire vulcanization. Vulcanizing bladders are indispensable in tire production, and their consumption is also an important part of the tire manufacturing cost. Damage to the curing bladders can lead to cracks, toe fillets and lack of rubber, and in severe cases, appearance quality defects such as delamination , resulting in waste and defective products in vulcanized tires, therefore, the vulcanizing bladder must be rep...

Claims

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Application Information

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IPC IPC(8): C09J123/28C09J11/04B29B7/00
Inventor 王丽娥邓旺吴启明宋卫
Owner GUIZHOU TIRE
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