Rubber Mixture with Novel Accelerants for Odor Reduction
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Solution Overview
Problem
Existing tire production materials generate bad odors and hazardous dust, affecting human health and ride comfort, and existing solutions do not adequately address these issues, particularly for spare tires which require rapid replacement without compromising safety or environmental friendliness.
Innovation Solution
A rubber mixture composed of polar or non-polar rubber, fillers, vulcanizing agents, accelerants with specific chemical bonds, and aromatic substances, which reduces the generation of pungent volatile organic compounds and eliminates harmful substances like carbon black and zinc oxide, thereby improving odor and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional tire materials (carbon black, zinc oxide, conventional accelerants) are used, then tire performance and durability are improved, but harmful odors and dust are generated affecting human health
Solution Approach 1:
The patent changes the chemical parameters of the accelerant by specifying compounds with S-N, S-P, O-N, or O-P single bonds instead of conventional accelerants. This parameter change eliminates the generation of harmful odors and dust while maintaining vulcanization effectiveness and tire performance
Solution Approach 2:
The patent uses a composite approach by combining specific types of rubber (natural rubber, synthetic polyisoprene, butadiene rubber, styrene-butadiene rubber) with the novel accelerant compounds. This composite material system achieves both good tire performance and reduced harmful emissions
2Strength
If hazardous substances like carbon black and zinc oxide are used in tire production, then manufacturing processability and tire strength are improved, but worker health and environmental safety are compromised
Solution Approach 1:
The patent extracts and eliminates hazardous substances (carbon black, zinc oxide) from the tire formulation. By removing these harmful components while retaining essential functional ingredients, the patent achieves both worker safety and acceptable tire performance
Solution Approach 2:
The patent replaces expensive and hazardous materials with safer, more environmentally friendly alternatives that are easier to handle and less harmful to workers during manufacturing and to the environment during disposal
3Productivity
If conventional accelerants are used for vulcanization, then vulcanization speed and efficiency are improved, but pungent volatile organic compounds are generated causing bad odors
Solution Approach 1:
The patent changes the chemical structure parameters of the accelerant to compounds containing S-N, S-P, O-N, or O-P single bonds. This structural modification maintains vulcanization speed and efficiency while eliminating the generation of pungent volatile organic compounds
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The rubber mixture significantly reduces tire odors and dust hazards, enhancing the safety and environmental sustainability of tire production and use, while maintaining performance standards for spare tires.
Implementation Method 1
the accelerant is a compound containing two or more X-Y single bonds, wherein X is selected from element O and S, and Y is selected from element N and P
Data Source
AI summary
The present disclosure provides a rubber mixture and a tire made the same. The rubber mixture consists essentially of: at least one kind of polar or non-polar rubber, at least one kind of filler, at least one kind of vulcanizing agent, at least one kind of accelerant, an optional anti-scorching agent, and an optional aromatic material. The accelerant is a compound containing two or more X-Y single bonds, wherein X is selected from element O and S, and Y is selected from element N and P. The rubber mixture and the tires of the present disclosure adopt improved accelerants and anti-scorching agents to reduce the generation of pungent volatile organic compound such as aniline, cyclohexylamine, tert-butylamine, and imine, thereby improving the odor problem of the tire. Meanwhile, the present disclosure omits carbon black, zinc oxide and other substances with fine powders, thereby reducing dust hazards to the operators.