Acetylated Castor Oil Plasticizer Blends for Phthalate-Free Formulations
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Solution Overview
Problem
There is a need for phthalate-free plasticizers that provide similar chemical, mechanical, and physical properties to phthalate-containing plasticizers in polymer resins, while being environmentally safe and having no adverse health risks.
Innovation Solution
Acetylated castor components, such as acetylated castor oil and acetylated castor wax, are used as plasticizers in combination with epoxidized fatty acid esters to create a phthalate-free plasticizer composition that replicates the properties of phthalate-based plasticizers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If phthalate plasticizers are used to achieve desired flexibility and mechanical properties in polymer resins, then the polymer performance is improved, but environmental safety and health risks deteriorate
Solution Approach 1:
The invention extracts and eliminates the harmful phthalate component from plasticizer formulations while retaining the beneficial plasticizing effects through alternative compounds (acetylated castor components and epoxidized fatty acid esters), thereby resolving the contradiction between mechanical performance and environmental safety
Solution Approach 2:
The invention uses composite plasticizer formulations combining acetylated castor components with epoxidized fatty acid esters to achieve the desired mechanical properties without phthalates, creating a new material composition that satisfies both performance and safety requirements
2Object-affected harmful factors
If phthalate-free plasticizers are developed to improve environmental safety, then health risks are reduced, but achieving equivalent chemical and mechanical properties becomes more difficult
Solution Approach 1:
The invention adjusts key parameters of the alternative plasticizer components (molecular weight, functional group content, viscosity) to match the performance characteristics of phthalate plasticizers, enabling equivalent chemical and physical properties without compromising environmental safety
Solution Approach 2:
The invention modifies specific molecular structures of the castor components through acetylation to achieve localized chemical properties that replicate the interaction mechanisms of phthalates with polymer matrices, thereby achieving equivalent performance at the molecular level
3Object-affected harmful factors
If acetylated castor components are used as plasticizers to provide environmental safety, then health risks are eliminated, but maintaining flexibility and tensile strength after heat aging becomes challenging
Solution Approach 1:
The invention introduces epoxidized fatty acid esters as intermediary compounds that mediate between the acetylated castor components and the polymer matrix, enhancing the stability and durability of the plasticizer system under heat aging conditions while maintaining environmental safety
Solution Approach 2:
The invention selects and formulates plasticizer components with inherent thermal stability characteristics that provide beforehand cushioning against degradation during heat aging, ensuring that flexibility and tensile strength are preserved even after exposure to elevated temperatures
Data Source
AI summary
The present disclosure is directed to acetylated castor components and compositions including the same. The acetylated castor component may be an acetylated castor oil and/or an acetylated castor wax. The acetylated castor component may be blended with an epoxidized fatty acid ester. The present acetylated castor components and blends find advantageous application as a plasticizer.