Nucleating agent BTA-2018

Scope of application

Amide nucleating agents are mainly used in the field of polyethylene terephthalate (PET) modification, specific applications include:

.   Packaging materials: such as beverage bottles, food containers, etc., to improve transparency and mechanical strength.

.   Fibers and films: to improve the crystallization rate and thermal stability of fibers, and enhance the tear resistance of films.

.   Engineering plastics: for automotive parts, electronic components, etc., to improve heat resistance and dimensional stability.

.   Rapid crystallization demand scenarios: such as injection molding products, shorten production cycle.

Function and purpose

.   Accelerated crystallization rate: shorten the cooling time of PET processing, improve production efficiency.

.   Refinement of crystal size: Improve material transparency (reduce light scattering) and surface finish.

.   Enhance Mechanical Properties: Improve hardness, rigidity and heat resistance by increasing crystallinity.

.   Optimize processing performance: Reduce the sensitivity of the

processing temperature window and reduce warpage and deformation of products.

Structure

The structure of amide nucleating agents mainly contains:

·   Amide bond (-CONH-): provides polarity and interacts with the PET molecular chain.

·   Alkyl chains or aromatic rings: e.g. long chain alkyl groups (C18) enhance compatibility with PET, aromatic rings (e.g. benzene rings) provide rigid

nucleation sites.

·   Symmetric structures: e.g. bis-amides (N,N'-ethylene bis-stearamide, EBS) or terephthalamide derivatives that promote ordering.

.   Functionalized groups: e.g. hydroxyl, carboxyl, etc. to enhance interfacial bonding with PET.

Product's own properties

Crystallization properties in PET