Vulcanization Activator Composition Reducing Zinc Oxide
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Solution Overview
Problem
Current vulcanization processes face challenges in reducing the use of zinc oxide (ZnO), a costly and environmentally harmful activator, while maintaining mechanical properties and process efficiency.
Innovation Solution
A vulcanization activator composition comprising 20-80% vulcanization activator, 10-40% wax, and 10-40% inorganic filler or carbon black, which reduces ZnO usage while maintaining or improving mechanical properties by promoting a versatile and efficient vulcanization process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If zinc oxide is used as a vulcanization activator, then the vulcanization reaction is activated and mechanical properties are achieved, but the cost increases and environmental harm worsens
Solution Approach 1:
The patent introduces an organic compound as an intermediary substance that works synergistically with reduced amounts of zinc oxide to activate the vulcanization reaction. The organic compound mediates between the sulfur vulcanizing agent and the polymer, enabling effective vulcanization with lower ZnO content, thus reducing cost and environmental harm while maintaining reaction activation.
Solution Approach 2:
The patent changes the chemical composition parameters of the activator system by incorporating organic compounds alongside reduced zinc oxide content. This parameter change allows the system to achieve the same vulcanization activation effect with lower amounts of harmful zinc oxide, addressing both the reliability and environmental harm aspects of the contradiction.
2Object-affected harmful factors
If zinc oxide content is reduced, then cost and environmental harm are reduced, but vulcanization efficiency and mechanical properties deteriorate
Solution Approach 1:
The patent creates a composite activator system combining zinc oxide with organic compounds. This composite approach allows the mixture to achieve superior performance compared to pure zinc oxide, enabling reduced ZnO content while maintaining or improving vulcanization efficiency and mechanical properties through synergistic interactions between the components.
Solution Approach 2:
The organic compound acts as a mediator that enhances the activity of reduced zinc oxide content. It facilitates the vulcanization reaction more effectively than zinc oxide alone at lower concentrations, thus maintaining productivity while reducing the amount of harmful zinc oxide required.
3Strength
If traditional vulcanization activators are used, then mechanical properties are achieved, but the complexity of the composition increases
Solution Approach 1:
The organic compound added to the system serves multiple functions: it activates the vulcanization reaction, enhances the efficiency of reduced zinc oxide, and contributes to achieving mechanical properties. This multi-functionality allows the composition to maintain strength while actually reducing overall complexity by replacing part of the traditional activator system with a more efficient multi-functional additive.
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 allows for reduced ZnO content while achieving similar or improved mechanical properties in vulcanized polymers, enhancing process efficiency and environmental sustainability.
Implementation Method 1
It is assumed that the activator combines with stearic acid to generate an active complex. This then activates the sulfur compound involved in the vulcanization reaction
Implementation Method 2
Vulcanization is a crosslinking reaction that occurs when a vulcanizable polymer is placed in the presence of a vulcanizing agent (usually sulfur) and thermal energy. The latter is necessary to establish chemical bonds between the vulcanizing agent and the reactive sites of the polymer's molecular chains
Data Source
AI summary
The present invention relates to an activating composition for use in a vulcanization process, comprising, based on the total weight of said activating composition: 20 to 80% by weight of at least one vulcanization activator; 10 to 40% by weight of at least one wax selected from the group consisting of paraffin-based waxes, microcrystalline waxes, polyolefin waxes, Fischer-Tropsch waxes, oxidized Fischer-Tropsch waxes, their derivatives and mixtures; and 10 to 40% by weight of at least one inorganic filler. The present invention also relates to a vulcanization process and a method for manufacturing the activating composition.