Triethylene Glycol Ester Plasticizer for PVC Cling Film
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Solution Overview
Problem
Existing plasticizer compositions for polyvinyl chloride resins, such as single-component and multi-component esters, fail to achieve desired properties of low heating loss, adhesiveness, and plasticization efficiency, particularly in cling film applications, due to miscibility issues and varying properties based on the type and composition of carboxylic acid and alcohol used.
Innovation Solution
A triethyleneglycol based compound and a plasticizer composition are developed, represented by specific ester formulas, which are synthesized by reacting triethyleneglycol with C3-C12 aliphatic and C6-C10 aromatic acids, along with a catalyst, to enhance miscibility and achieve improved properties like low heating loss, adhesiveness, and plasticization efficiency in polyvinyl chloride resins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If single-component triethyleneglycol ester is used as plasticizer, then workability is improved, but miscibility with polyvinyl chloride resin decreases and transparency is reduced
Solution Approach 1:
The patent applies composite materials by combining multiple triethyleneglycol ester components with different fatty acid chains (e.g., C8-C12 medium-chain and C14-C18 long-chain esters) to create a plasticizer composition that achieves both good miscibility with PVC and desirable workability, resolving the contradiction between single-component simplicity and multi-component performance
2Ease of manufacture
If single-component triethyleneglycol ester is used as plasticizer, then manufacturing simplicity is maintained, but adhesion and elongation properties deteriorate
Solution Approach 1:
The patent merges multiple triethyleneglycol ester components with different chain lengths and properties into a single plasticizer composition, combining the benefits of each component to achieve both manufacturing feasibility and superior adhesion and elongation properties that single components cannot provide
3Adaptability or versatility
If conventional plasticizer compositions are used, then general plasticization is achieved, but heating loss increases and adhesion deteriorates
Solution Approach 1:
The patent changes the chemical parameters of the plasticizer by using triethyleneglycol ester structures with specific fatty acid compositions (medium and long-chain combinations), which alters the thermal and adhesive properties to reduce heating loss while maintaining plasticization capability, addressing the limitations of conventional plasticizers
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 triethyleneglycol based plasticizer composition results in polyvinyl chloride resins with lower heating loss, excellent adhesion, higher plasticization efficiency, and improved transparency, making them suitable for food packaging applications like cling film.
Implementation Method 1
reacting triethyleneglycol with C3-C12 aliphatic and C6-C10 aromatic acids, along with a catalyst
Data Source
AI summary
Provided is a novel triethyleneglycol based compound, a plasticizer composition for polyvinyl chloride resin including the same, and a method of preparing the plasticizer composition. In particular, the plasticizer composition for polyvinyl chloride resin includes the novel compound, 2-(2-(2-(2-ethylhexanoyloxy)ethoxy)ethoxy)ethyl 2-ethylhexanoate, and 2-(2-(2-phenylcarbonyloxyethoxy)ethoxy)ethyl benzoate in a proper mixture ratio. A polyvinyl chloride prepared using the plasticizer composition has low heating loss, excellent adhesion, high plasticization efficiency, high elongation, high tensile strength, and high transparency.