Aspartic Acid Polyolefin Nucleating Agent for β-Crystal Formation
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Solution Overview
Problem
Existing nucleating agents for polyolefin resins do not adequately promote the formation of β crystals, which are characterized by lower melting point, higher impact resistance, and superior heat resistance compared to α crystals.
Innovation Solution
A nucleating agent containing a specific compound with an aspartic acid structure, represented by Formula (1), which enhances the formation of β crystals in polyolefin resins, and a nucleating agent composition that includes additives such as phenolic antioxidants and flame retardants to further enhance properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional nucleating agents are used, then polyolefin resins can be processed, but the β crystal-forming effect is insufficient
Solution Approach 1:
The invention changes the chemical structure parameters of the nucleating agent by introducing specific compounds containing aspartic acid structures with particular molecular weights and functional groups, transforming the conventional nucleating agent into one with enhanced β crystal-forming capability while maintaining processability
Solution Approach 2:
The invention creates a composite nucleating agent system by combining organic compounds with aspartic acid structures and metal salts, forming a composite material that synergistically enhances the β crystal-forming effect beyond what conventional single-component nucleating agents can achieve
2Strength
If β crystals are formed to improve impact resistance, then heat resistance is improved, but manufacturing complexity increases
Solution Approach 1:
The invention performs preliminary action by incorporating the specialized nucleating agent into the resin composition before molding, pre-establishing the conditions for β crystal formation during crystallization, which simplifies the manufacturing process compared to post-treatment methods while ensuring consistent impact resistance and heat resistance properties
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 nucleating agent composition effectively promotes the formation of β crystals, improving impact resistance and heat resistance of polyolefin resin products, suitable for automotive components, containers, and porous films.
Implementation Method 1
a nucleating agent for a polyolefin resin, which has an excellent β crystal-forming effect
Data Source
AI summary
Provided are: a nucleating agent for a polyolefin resin having an excellent β crystal-forming effect; a nucleating agent composition for a polyolefin resin containing the nucleating agent; a polyolefin resin masterbatch; a polyolefin resin composition; a molded article of the composition; a film of the composition; a method of producing a porous film; and a package. The nucleating agent contains a compound represented by Formula (1) below wherein M represents a monovalent to trivalent metal atom having a specific gravity of 4.0 or less, or the like; a represents 1 or 2; b represents 1 or 3; x represents an integer of 1 to 3; ax = 2b is satisfied; and Z represents a group represented by Formula (2) or (3) below wherein ∗ represents a position at which each group is linked with Z of Formula (1); Y represents a direct bond or an alkylene group having 1 to 4 carbon atoms; and R1 to R10 each independently represent a hydrogen atom, a hydroxy group, a halogen atom, an alkyl group having 1 to 10 carbon atoms, or the like.