Description

Polyimide Larc-Tpi is a high-performance thermoplastic polyimide known for its exceptional thermal stability, mechanical strength, and chemical resistance. This advanced polymer is critical for applications demanding long-term reliability under extreme environmental and operational stress. It is primarily utilized by the aerospace, electronics, and advanced manufacturing industries for components such as adhesives, composite matrices, and insulating films.

Application

• Aerospace Components: Used as a high-temperature adhesive and composite matrix for engine parts, radomes, and structural elements.
• Electronics Encapsulation: Serves as a protective coating and insulating layer for semiconductors, flexible circuits, and wire coatings.
• Advanced Composites: Acts as a resin binder in carbon fiber and fiberglass composites for high-strength, lightweight structures.
• Adhesives and Sealants: Formulated into high-performance adhesives for bonding metals, ceramics, and other polymers in demanding environments.
• Protective Coatings: Applied as a thin film coating to provide thermal and chemical protection to sensitive substrates.
• Membrane Technology: Utilized in the fabrication of high-temperature resistant filtration and separation membranes.

Basic Information

Product Name	Polyimide Larc-Tpi
CAS No.	51518-44-6
Molecular Formula	(C22H10N2O5)n
Molecular Weight	~382.33 (monomer unit)
Synonyms	LARC-TPI; Thermoplastic Polyimide (TPI); Poly(4,4'-oxydiphenylene pyromellitimide) variant; LaRC™-TPI; NASA Langley Research Center Thermoplastic Polyimide; Polyimide resin (thermoplastic grade); 4,4'-Oxydiphthalic anhydride–3,4'-oxydianiline copolymer
EINECS	Contact for details

Quality Control

Our Polyimide Larc-Tpi is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality is verified through a series of analytical tests including intrinsic viscosity, thermal analysis (TGA/DSC), and FT-IR spectroscopy. A Certificate of Analysis (COA) detailing key specifications is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids, bases, and oxidizing agents. The material is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Amber to dark brown pellets or powder
Identification (IR)	Conforms to structure
Inherent Viscosity	0.50 - 0.70 dL/g (typical)
Glass Transition Temp (Tg)	250 - 270 °C
Thermal Decomposition (Td)	> 500 °C (in N2)
Moisture Content	< 0.5 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.