Ester Plasticizer Resin Composite for Tire Tread
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Solution Overview
Problem
Current tire formulations face challenges in simultaneously reducing rolling resistance, improving wet grip, and maintaining low abrasion, while also needing to replace distilled aromatic extracts with alternatives that comply with environmental regulations, and enhancing the mechanical properties of tires and technical rubber goods to withstand aging processes.
Innovation Solution
A composition comprising fatty acid alkyl esters and fatty acid aryl esters in combination with coumarone-indene resins, petroleum hydrocarbon resins, and phenol formaldehyde resins, which are used as plasticizers or extender oils to decrease the Mooney viscosity and glass transition temperature of polymer compositions, thereby improving tire and rubber good properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If distilled aromatic extracts (DAE) are used as plasticizers to improve tire flexibility and processing, then the polymer composition achieves good processability and elastic properties, but the formulation violates environmental regulations due to high polycyclic aromatic hydrocarbon (PAH) content
Solution Approach 1:
The invention extracts and removes the harmful PAH components from the plasticizer formulation by replacing DAE with a combination of aromatic oils and resins that comply with REACH Annex XVII restrictions, thereby eliminating the harmful effect while preserving the desired plasticizing functionality
Solution Approach 2:
The invention creates a composite plasticizer system combining aromatic oils (such as MES, RAE, TRAE) with specific resins (coumarone-indene, petroleum hydrocarbon, phenol formaldehyde resins) to achieve the desired balance of processability, elastic properties, and environmental compliance that cannot be obtained with single-component plasticizers
2Reliability
If the polymer matrix is designed for high wet grip through increased polarity and improved polymer-filler interaction, then wet grip performance is enhanced, but rolling resistance and abrasion properties deteriorate
Solution Approach 1:
The invention applies local quality by using highly polar polymers (such as epoxidized natural rubber or carboxylated polybutadiene) specifically in the tread compound where wet grip is critical, while maintaining lower polarity in other tire components to minimize rolling resistance and abrasion losses
Solution Approach 2:
The invention changes the polarity parameter of the polymer matrix by introducing polar functional groups (epoxide, carboxyl) to enhance wet grip, while carefully controlling the overall composition to prevent excessive increases in rolling resistance and abrasion through optimized filler and plasticizer selection
3Strength
If polar polymers are used to enhance polymer-filler interaction and improve mechanical properties, then tensile strength and elongation are increased, but the formulation complexity and manufacturing difficulty increase
Solution Approach 1:
The invention merges multiple functions into the polar polymer component: it provides both the mechanical reinforcement through enhanced filler interaction and the desired plasticizing effect when combined with the aromatic oil-resin system, thereby reducing the need for additional separate additives and simplifying the overall formulation
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 composition results in tires and rubber goods with increased wet grip, decreased rolling resistance, and unchanged abrasion, along with enhanced tensile strength and elongation at break, effectively addressing the limitations of existing formulations and meeting environmental standards.
Implementation Method 1
the invention relates to a composition for use as a plasticizer composition in a formulation for a tire or a technical rubber good or for use as an extender oil for decreasing the mooney-viscosity
Implementation Method 2
decreasing the mooney-viscosity and/or the glass transition temperature (Tg) of a polymer composition
Data Source
AI summary
The present invention relates to a composition for use as a plasticizer composition in a formulation for a tire or a technical rubber good or for use as an extender oil for decreasing the mooney-viscosity and/or the glass transition temperature (Tg) of a polymer composition and its corresponding use. The invention also relates to the use of one or more than one ester as well as a process of preparing a formulation for making a tire or a technical rubber good or making a tire or a technical rubber good or preparing a polymer composition having a decreased mooney-viscosity. Moreover, the invention also relates to a formulation for making a tire or a technical rubber good and a corresponding tire or technical rubber good.