Tire Tread Composition Using Dandelion Rubber for Uniform Kneading
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Solution Overview
Problem
Russian dandelion-derived natural rubber tends to have large molecular weight, making it difficult to knead uniformly with other rubber components, leading to poor dispersibility of fillers and reduced mechanical strength, which in turn decreases abrasion resistance and fuel efficiency of tires.
Innovation Solution
A tire composition using a rubber component that includes Russian dandelion-derived natural rubber and butadiene rubber, with an average domain width of 370 nm or less, as measured by atomic force microscopy, to improve uniformity and filler dispersibility, enhancing abrasion resistance and fuel efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If Russian dandelion-derived natural rubber with large molecular weight is used, then the supply stability is improved and price stability is achieved, but the kneadability with other rubber components deteriorates and filler dispersibility decreases
Solution Approach 1:
The patent changes the molecular weight parameter of the Russian dandelion-derived natural rubber by selecting rubber with weight-average molecular weight of 3,000,000 or less, which improves kneadability while maintaining supply stability benefits
2Stability of the object's composition
If Russian dandelion-derived natural rubber with large molecular weight is used, then the supply stability is improved, but the mechanical strength of the rubber composition decreases
Solution Approach 1:
The patent optimizes the molecular weight parameter to 3,000,000 or less, which balances mechanical strength requirements with the supply stability advantages of Russian dandelion-derived rubber
Solution Approach 2:
The patent creates a composite rubber composition combining Russian dandelion-derived natural rubber with other rubber components in specific ratios, achieving both mechanical strength and supply stability
3Stability of the object's composition
If Russian dandelion-derived natural rubber with large molecular weight is used, then the supply stability is improved, but the abrasion resistance of the tire decreases
Solution Approach 1:
The patent controls the weight-average molecular weight at 3,000,000 or less to ensure proper filler dispersibility and rubber composition homogeneity, which maintains abrasion resistance while utilizing Russian dandelion-derived rubber for supply stability
Solution Approach 2:
The patent uses intensive kneading processes to achieve uniform dispersion of fillers and rubber components, ensuring abrasion resistance despite using Russian dandelion-derived rubber with potentially varying molecular characteristics
4Stability of the object's composition
If Russian dandelion-derived natural rubber with large molecular weight is used, then the supply stability is improved, but the fuel efficiency of the tire decreases
Solution Approach 1:
The patent optimizes the molecular weight parameter to minimize hysteresis loss and energy dissipation, achieving fuel efficiency while maintaining supply stability benefits of Russian dandelion-derived rubber
Data Source
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AI summary
It is an object of the present invention to provide a tire composed of a rubber composition comprising a Russian dandelion-derived natural rubber, the tire having improved overall performance of fuel efficiency and abrasion resistance. Provided is a tire comprising a tread part, wherein the tread part is composed of a rubber composition comprising a rubber component, wherein the rubber component comprises a Russian dandelion-derived natural rubber and a butadiene rubber, and wherein an average domain width D, which is measured by ternarizing an image of the butadiene rubber obtained using an atomic force microscope (AFM), is 370 nm or less.