Supercharge Your Innovation With Domain-Expert AI Agents!

Method for reducing bubbles of butyl rubber inner tube body

A technology of carcass air bubbles and butyl inner tube, applied in the technical field of inner tube manufacturing process improvement

Active Publication Date: 2013-10-02
青岛道安工贸股份有限公司
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bubbles are difficult to completely avoid, they can only be minimized

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Mixing workshop:

[0028] ① Use a 75-liter kneader to mix the rubber.

[0029] First mix a section of masterbatch, according to the weight ratio of 35 parts of butyl rubber + 24.5 parts of carbon black + 14 parts of zinc oxide + 6.35 parts of naphthenic oil; then mix the second section of masterbatch: 16.87 parts of a section of masterbatch + 60.83 parts of butyl Base reclaimed rubber (conventional) + 0.89 parts of stearic acid + 0.21 parts of paraffin + 0.1 parts of anti-aging agent + 0.15 parts of uniform resin), the first stage masterbatch discharge temperature is 165 ° C, and the second stage master batch discharge temperature is 165 ° C.

[0030] ②Use the 1# open mill to cool down the rubber material and add vulcanizing agent and accelerator.

[0031] Unglue to 1# open mill, cut 3 knives to cool down, add vulcanizing agent and accelerator, then cut 3 knives, make two triangle bags and supply to 2# open mill, film thickness 9mm, glue temperature is controlled at...

Embodiment 2

[0051] 1. Mixing workshop:

[0052] ① Use a 75-liter kneader to mix the rubber.

[0053] First mix a section of masterbatch, according to the weight ratio of 35 parts of butyl rubber + 24.5 parts of carbon black + 14 parts of zinc oxide + 6.35 parts of naphthenic oil; then mix the second section of masterbatch: 16.87 parts of a section of masterbatch + 60.83 parts of butyl Base reclaimed rubber + 0.89 parts of stearic acid + 0.21 parts of paraffin + 0.1 parts of anti-aging agent + 0.15 parts of uniform resin), the first stage masterbatch discharge temperature is 165 ° C, and the second stage master batch discharge temperature is 165 ° C.

[0054] ②Use the 1# open mill to cool down the rubber material and add vulcanizing agent and accelerator.

[0055] Deglue to 1# open mill, cut 3 knives to cool down, add vulcanizing agent and accelerator, then cut 3 knives, make two triangle bags and supply to 2# open kneader, film thickness 9mm, gluing temperature controlled at 105°C withi...

Embodiment 3

[0075] 1. Mixing workshop:

[0076] ① Use a 75-liter kneader to mix the rubber.

[0077] First mix a section of masterbatch, according to the weight ratio of 35 parts of butyl rubber + 24.5 parts of carbon black + 14 parts of zinc oxide + 6.35 parts of naphthenic oil; then mix the second section of masterbatch: 16.87 parts of a section of masterbatch + 60.83 parts of butyl Base reclaimed rubber + 0.89 parts of stearic acid + 0.21 parts of paraffin + 0.1 parts of anti-aging agent + 0.15 parts of uniform resin), the first stage masterbatch discharge temperature is 165 ° C, and the second stage master batch discharge temperature is 165 ° C.

[0078] ②Use the 1# open mill to cool down the rubber material and add vulcanizing agent and accelerator.

[0079] Deglue to 1# open mill, cut 3 knives to cool down, add vulcanizing agent and accelerator, then cut 3 knives, make two triangle bags and supply to 2# open kneader, film thickness 9mm, gluing temperature controlled at 105°C withi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for reducing bubbles of a butyl rubber inner tube body. The method comprises the steps of: mixing butyl rubber, carbon black, zinc oxide and naphthenic oil into one-stage rubber master batch, mixing the one-stage rubber master batch, regenerative butyl rubber, stearic acid, paraffin, anti-aging agent and resin adhesive to obtain two-stage rubber master batch, cooling the two-stage rubber master batch, adding sulfur, turning and cooling, coarsely milling and preheating the mixed rubber in an open mill, further cooking the rubber, filtering impurities in the rubber, mixing the filtered rubber and cooling, evenly mixing, extruding out of a tube by utilizing an extruder, and drying the moisture on the surface of an inner tube. according to the method, the mixing is changed into two stages from one stage, the batching-out temperature is increased to 165 DEG C from 155 DEG C so as to reduce volatile matter and moisture in the rubber and further reduce bubbles on the finished inner tube body; the instability of the tube in pressing-out process can be reduced by adopting pressing-out technology; on the premise of not influencing the contraction of the semi-finished product, the surface temperature is increased as far as possible, the air entraining problem of return scraps can be reduced, and the bubble rate of the inner tube body can be reduced to currently 0.1% from originally 0.5%.

Description

technical field [0001] The invention relates to a method for reducing air bubbles in an inner tube, which belongs to an inner tube manufacturing process improvement technology and can effectively reduce the air bubbles in a butyl inner tube body. Background technique [0002] The job of the inner tube is to prevent air leaks, so the air permeability of the walls of the inner tube itself is an important factor. Gas permeability is an inherent property of the polymer used and no polymer is better than butyl rubber. Butyl rubber is a copolymer of isoolefins and one or more multiolefins as comonomers, usually used as the main component in the production of innertubes. [0003] However, in the current production, butyl inner tube carcass air bubbles are a quality problem that plagues various manufacturers, resulting in an increase in returned materials and a decline in the qualified rate of finished products, which affects the smooth progress of production. There are many reaso...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C47/00B29C47/68B29B7/00C08L23/22C08K13/02C08K3/04C08K3/22C08K5/09C08J3/22
Inventor 纪道京丁顺斌宋志明
Owner 青岛道安工贸股份有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com