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Internal mixing and compounding technology for improving fluidity of rubber material

A fluidity and rubber technology, applied in the field of tire manufacturing, can solve the problems of low evaluation accuracy, long Mooney detection and detection time, etc., and achieve the effect of fast detection, good guiding significance, and improved product quality

Active Publication Date: 2015-11-04
特拓(青岛)轮胎技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, most of them pass the Mooney test, but they cannot directly reflect the fluidity of the actual rubber compound. Even if it is the same formula, the same Mooney test results are obtained, and different extrusion effects often appear in the subsequent process. Evaluation The accuracy is low; in addition, the Mooney test also has the disadvantage of a long detection time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The rubber material is natural rubber and butadiene rubber mixed according to the ratio of 1:1. Add the rubber material and small materials into the mixer, keep the speed constant at 50rpm, mix for 1min, lift the top bolt; add carbon black, press the top bolt to The mixing temperature is 105-110°C, lift up the top bolt; add oil, press the top bolt to 125°C, lift up the top bolt, supplementary mixing, lift the top bolt to 155-160°C, lift up the top bolt; discharge glue; Measure the fluidity of the rubber material, the test pressure is 5MPa, the test time is 60s, the mold is selected as a cylinder with a diameter of 5cm and a height of 10cm, and the test temperature is 90°C. Then adjust the debinding temperature, rotation speed and mixing time according to the test results.

Embodiment 2

[0021] The rubber material is natural rubber and styrene-butadiene rubber mixed in a ratio of 1:4. Add the rubber material and small materials into the mixer, set the speed at 50rpm, mix for 1min, and lift the top bolt; add carbon black and white carbon black , press the top bolt until the mixing temperature is 115-120°C, lift the top bolt; refuel, press the top bolt to 135°C, lift the top bolt, add mixing, press the top bolt to 140-145°C, lift the top Bolt; reduce the speed to 20rpm, mix for 1min to remove the glue; measure the fluidity of the rubber material, the test pressure is 3MPa, the test time is 40s, the mold is selected as a cylinder with a diameter of 5cm and a height of 10cm, and the test temperature is 90°C, and then according to the test results Adjust the debinding temperature, rotation speed and mixing time.

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Abstract

The invention discloses an internal mixing and compounding technology for improving the fluidity of a rubber material. The internal mixing and compounding technology is characterized in that based on a rubber material fluidity analysis meter, fluidity data of the rubber material is measured in real time, and technological parameters in a rubber material internal mixing process are adjusted, thereby improving the product quality. The rubber material fluidity analysis meter detects the fluidity of the rubber material specifically, and has the advantages that the rubber material fluidity analysis meter is close to production, is wide in application and detects quickly. The rubber material fluidity analysis meter is extremely suitable for control and monitoring of the size stability of semi-finished products, fills a gap in the industry, provides great help for the quality control of tires, and plays an important role in improving the quality of the tires and stabilizing process control.

Description

technical field [0001] The invention relates to the field of tire manufacturing, in particular to a method for measuring the fluidity of the rubber material by means of a rubber material fluidity analyzer to adjust the rubber material process and improve the tire quality. Background technique [0002] Internal mixer rubber mixing is the first step in the rubber manufacturing process. It refers to the production process of mixing various ingredients into raw rubber in an internal mixer to make a uniform quality of mixed rubber. The rubber mixing process is one of the most basic and important processes in the rubber processing technology, which determines the efficacy of the subsequent rubber manufacturing process and has a considerable impact on the performance of the product. [0003] During the mixing of carbon black-filled rubber with an internal mixer, the two processes of carbon black dispersion into the polymer and carbon black / polymer interaction take place simultaneou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/02B29B7/28
Inventor 齐格弗里德·拉策堡李红卫郑昆陈松付承文孙茂忠
Owner 特拓(青岛)轮胎技术有限公司
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