Description

Oxidized Polypropylene CAS NO 68649-58-1 is a chemically modified polypropylene polymer featuring introduced oxygen-containing functional groups such as carbonyls and hydroxyls. This modification is crucial as it significantly enhances the polymer's surface energy, adhesion properties, and compatibility with polar substrates. It is an essential material for formulators and manufacturers seeking to improve the performance of coatings, adhesives, and composite materials.

Application

• Adhesive & Sealant Formulation: Acts as a key adhesion promoter and tackifier, improving bond strength to low-surface-energy plastics like untreated polypropylene and polyethylene.
• Coatings & Inks: Used as a dispersing agent and compatibility enhancer in paints, printing inks, and functional coatings to improve pigment wetting and film adhesion.
• Polymer Modification: Employed as a compatibilizer in polymer blends and composites to improve the interfacial adhesion between polar and non-polar polymers.
• Packaging Industry: Serves as a primer or a component in laminating adhesives for multi-layer films, enhancing the bond between layers.
• Rubber & Elastomer Processing: Functions as a processing aid and internal lubricant, improving flow properties and mold release.
• Textile & Fiber Treatment: Used in coatings and finishes for synthetic fibers to improve dyeability and moisture management.

Basic Information

Product Name	Oxidized Polypropylene
CAS No.	68649-58-1
Molecular Formula	(C3H6O)n
Molecular Weight	Varies (Polymer)
Synonyms	Polypropylene, oxidized; Oxidized Polypropene; Oxygenated Polypropylene; PP-g-MA (related); Maleic Anhydride-grafted Polypropylene (related); Polypropylene Modified; Adhesion Promoter for Polyolefins
EINECS	Contact for details

Quality Control

Our Oxidized Polypropylene is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance characteristics such as acid value, melt flow index, and thermal stability. A comprehensive Certificate of Analysis (COA) detailing specific parameters is provided with every 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 oxidizing agents and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	White to light yellow flakes or granules
Acid Value (mg KOH/g)	15 - 50
Melting Point (DSC)	140 - 165 °C
Melt Flow Index (MFI)	5 - 100 g/10 min (230°C/2.16 kg)
Moisture Content	< 0.5 %
Identification (IR)	Conforms to structure

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