Description

Cellulose Diacetate is a versatile, partially acetylated cellulose ester known for its excellent film-forming properties, toughness, and clarity. This material is a critical component in the production of high-performance films, fibers, and coatings, offering a unique balance of biodegradability and durability. It is essential for manufacturers in the textiles, filtration, photographic film, and specialty packaging industries seeking a reliable, high-quality polymer.

Application

• Film Production: Used as the base material for photographic film, membrane filters, and specialty packaging films.
• Textile Fibers: A key raw material for producing acetate fibers used in apparel, linings, and home furnishings.
• Coatings & Inks: Serves as a film-forming agent and binder in advanced coatings, lacquers, and printing inks.
• Membranes & Filtration: Employed in the manufacture of dialysis membranes and various microfiltration/ultrafiltration media.
• Adhesives & Sealants: Acts as a modifier to enhance the performance and application properties of industrial adhesives.
• Pharmaceuticals: Utilized as an enteric coating material for tablets and capsules to control drug release.
• Consumer Goods: Found in the production of tool handles, eyewear frames, and other molded plastic items.

Basic Information

Product Name	Cellulose Diacetate
CAS No.	9035-69-2
Molecular Formula	(C6H7O2(OCOCH3)x(OH)3-x)n (x ≈ 2.4)
Molecular Weight	Variable polymer (typically 30,000 - 100,000 g/mol)
Synonyms	Cellulose acetate (secondary acetate); Acetylcellulose; Diacetate cellulose; Cellulose 2,5-acetate; Acetate rayon; CA; CD; Cellidor; Cellon; Lumarith; Rhodoid; Tenite; Acetylated cellulose; Cellulose ester
EINECS	232-674-9

Quality Control

Our Cellulose Diacetate is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for acetyl value, viscosity, and purity. A comprehensive Certificate of Analysis (COA) detailing physical, chemical, and performance parameters is provided with every shipment to guarantee consistency and compliance with your application 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). This material is hygroscopic (moisture-sensitive); keep the original container sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white flakes or powder
Acetyl Value (%)	53.0 - 56.0
Viscosity (6% in Acetone/Ethanol)	Customizable (e.g., 2.5 - 200 poise)
Moisture Content	≤ 5.0%
Identification (IR)	Conforms
Free Acid (as Acetic Acid)	≤ 0.05%
Ash Content	≤ 0.1%
Solubility (in Acetone)	Complete, clear solution

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