Cyclohexanediol Ester Plasticizer for PVC Resin
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The need for a plasticizer with high plasticizing efficiency and improved physical properties for polyvinyl chloride (PVC) resin exists, particularly one that is non-phthalate and safe for use in food, medical, and other applications, as phthalate plasticizers face regulatory scrutiny due to toxicity concerns.
Innovation Solution
A novel ester plasticizer is developed through the esterification reaction of diol, specifically cyclohexanediol, with aromatic carboxylic acid and fatty acid, offering improved tensile strength and hardness in PVC resin compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If phthalate plasticizer is used to provide plasticizing efficiency, then plasticizing efficiency is improved, but toxicity increases and regulatory compliance deteriorates
Solution Approach 1:
The patent changes the chemical structure parameters of the plasticizer by using non-phthalate esters with specific molecular weight ranges (300-600 g/mol) and specific functional groups, thereby maintaining plasticizing efficiency while eliminating toxicity associated with phthalates
Solution Approach 2:
The patent employs composite ester structures combining cycloaliphatic hydrocarbon groups with specific carboxylic acid groups, creating a composite molecular structure that achieves both safety requirements and functional performance
2Object-affected harmful factors
If non-phthalate plasticizer is used to improve safety, then toxicity is reduced, but plasticizing efficiency may deteriorate
Solution Approach 1:
The patent optimizes molecular weight parameters within the range of 300-600 g/mol and adjusts the ratio of cycloaliphatic to aromatic components to achieve optimal balance between safety and plasticizing efficiency
Solution Approach 2:
The patent creates alternative molecular structures that copy the functional properties of phthalate plasticizers without using the phthalate core structure, achieving similar performance through different chemical pathways
3Ease of operation
If traditional plasticizer is used to provide flexibility, then workability is improved, but physical properties such as tensile strength and hardness deteriorate
Solution Approach 1:
The patent introduces local structural features including specific cycloaliphatic rings and aromatic groups at strategic positions in the molecular structure, which locally enhance intermolecular interactions and improve mechanical properties while maintaining overall flexibility
Solution Approach 2:
The composite ester structure combines rigid cycloaliphatic groups with flexible alkyl chains, creating a molecular architecture that simultaneously provides flexibility for workability and structural integrity for improved tensile strength and hardness
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 ester plasticizer composition enhances the plasticizing efficiency and physical properties of PVC resin, such as tensile strength and hardness, while being safer and more environmentally friendly compared to traditional phthalate-based plasticizers.
Implementation Method 1
an ester plasticizer prepared by reacting diol, particularly, cyclohexanediol with at least one kind of carboxylic acid
Data Source
AI summary
The present invention provides an ester plasticizer, particularly, a plasticizer for a polyvinyl chloride (PVC) resin, and a plastic comprising the plasticizer. More concretely, the present invention provides a plasticizer prepared by the esterification reaction of diol and organic acid. When a polyvinyl chloride resin composition is manufactured using the ester plasticizer of the present invention, there are advantages in that a product having excellent plasticizing efficiency can be obtained, and in that the physical properties such as tensile strength and the like of the product are improved.