Resin Additive Composition for Thermal Stability and Catalyst Deactivation
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Solution Overview
Problem
Existing phosphate esters used as resin additives exhibit insufficient thermal resistance and cause issues like fuming during resin processing, leading to degradation and loss of mechanical strength.
Innovation Solution
A compound with a specific structure, represented by general formula (1), is added to the resin, functioning as a catalyst deactivator to enhance thermal resistance and stabilization performance by preventing molecular weight decrease and hybridization due to transesterification reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If acidic phosphate esters (such as octadecyl acid phosphate) are added to resin to suppress deterioration, then resin stabilization is improved, but thermal resistance is insufficient and fuming occurs during processing
Solution Approach 1:
The invention changes the chemical structure parameters of the phosphate ester by introducing a specific cyclic carbonate group structure with defined molecular weight (400-5000), which fundamentally alters the thermal stability characteristics while maintaining the catalyst deactivation function, thereby resolving the contradiction between stabilization performance and thermal resistance
Solution Approach 2:
The invention creates a composite additive system combining the cyclic carbonate-containing phosphate ester with the resin matrix, where the specific molecular structure provides both the catalyst deactivation function for stabilization and the thermal stability for high-temperature processing resistance
2Stability of the object's composition
If phosphate ester compounds are added to suppress adverse effects during processing, then resin stability is improved, but mechanical strength decreases over time
Solution Approach 1:
The invention uses a phosphate ester compound that temporarily deactivates the catalyst during processing, then the deactivated catalyst form remains stable and does not interfere with the final resin properties, effectively providing stabilization without long-term negative impact on mechanical strength
Solution Approach 2:
By controlling the molecular weight parameter of the cyclic carbonate group to be within 400-5000, the invention optimizes the balance between catalyst deactivation efficiency and the preservation of mechanical strength properties in the final resin product
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 additive provides excellent thermal resistance and resin stabilization, reducing degradation and maintaining mechanical strength during processing, thereby stabilizing the resin effectively.
Implementation Method 1
adding a catalyst deactivator during the production process. Phosphorus-based compounds, such as phosphate-based compounds and phosphite-based compounds, are described as preferred catalyst deactivators
Implementation Method 2
preventing molecular weight decrease and hybridization due to transesterification reactions
Implementation Method 3
thermal degradation can be suppressed by adding a catalyst deactivator during the production process. adding dioctadecyl phosphate to a polylactic acid resin improves the thermal stability of the resin
Data Source
AI summary
An object of the present invention is to provide an additive for resin that has excellent thermal resistance and excellent resin stabilization performance. The present invention relates to an additive for resin containing a compound represented by the general formula (1) below. In the general formula (1), R1 represents an alkyl group having 26 to 40 carbon atoms, an alkenyl group having 26 to 40 carbon atoms, or a group represented by the general formula (2) below, where n represents an integer of 1 or 2. When n is 2, the groups R1 may be the same or different. In the general formula (2), R2 represents hydrogen or an alkyl group having 1 to 18 carbon atoms, m represents an integer that results in a number-average molecular weight of 100 to 10,000 for the group represented by the general formula (2), and * represents a bond.