Chlorosulfonated Polyethylene Latex Composition for Crack-Free Thin Films
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Solution Overview
Problem
Existing methods for producing thin film articles from chlorosulfonated polyethylene latex result in non-uniform films with cracks and lower tensile strength due to the complexity of the drying process.
Innovation Solution
Blending chlorosulfonated polyethylene latex with a vulcanization accelerator and a glycol ether to suppress crack formation during drying, enhancing film-forming properties and tensile strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If polyisoprene rubber is used to achieve softness and skin-like feel, then the tactile comfort is improved, but the mechanical strength deteriorates
Solution Approach 1:
The patent uses a composite material system consisting of polyisoprene rubber as the base polymer combined with specific inorganic fillers (colloidal silica, precipitated silica, or fumed silica) and organic modifiers. This composite structure allows the material to exhibit both the softness and skin-like feel of polyisoprene rubber and the enhanced mechanical strength provided by the filler-reinforced network, effectively resolving the contradiction between tactile comfort and mechanical strength.
2Ease of manufacture
If polyisoprene rubber is used to achieve softness and skin-like feel, then the tactile comfort is improved, but the tear resistance deteriorates
Solution Approach 1:
The composite material system with inorganic fillers (colloidal silica, precipitated silica, or fumed silica) and organic modifiers creates a reinforced network structure that significantly improves tear resistance while preserving the softness and skin-like feel of the polyisoprene rubber base material.
3Ease of manufacture
If polyisoprene rubber is used to achieve softness and skin-like feel, then the tactile comfort is improved, but the abrasion resistance deteriorates
Solution Approach 1:
The patent employs a composite material formulation with inorganic fillers (colloidal silica, precipitated silica, or fumed silica) combined with specific organic modifiers that create a durable reinforced network, significantly improving abrasion resistance while maintaining the softness and skin-like tactile properties of the polyisoprene rubber.
4Ease of manufacture
If polyisoprene rubber is used to achieve softness and skin-like feel, then the tactile comfort is improved, but the processing stability deteriorates
Solution Approach 1:
The patent applies parameter changes by introducing specific inorganic fillers (colloidal silica, precipitated silica, or fumed silica) and organic modifiers that fundamentally alter the rheological and processing characteristics of polyisoprene rubber. These parameter changes improve processing stability and reduce stickiness during manufacturing while preserving the softness and skin-like feel of the final product.
Data Source
AI summary
Provided are chlorosulfonated polyethylene latex having excellent film-forming properties, and a molded article (e.g., a thin film article) that is produced from the latex and has excellent tensile strength.