Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

ROTUBA H4 Cellulose Acetate

ROTUBA H4 Cellulose Acetate is a classic thermoplastic cellulose organic acid ester, synthesized by acetylation with acetic anhydride and presented as powder. It has outstanding rigidity, with Rockwell hardness of 101R and tensile strength at break of 49.6MPa, suitable for injection molding, extrusion and other molding processes. It meets the comprehensive requirements of consumer toys

Features Of ROTUBA H4 Cellulose Acetate

  1. High Hardness and Strength Performance - Rockwell hardness of 101R and tensile strength at break of 49.6MPa, suitable for rigid structural parts, strong deformation resistance, ensuring product structural stability and durability.

  2. Excellent Rigidity Support - Flexural modulus of 1520MPa and flexural strength of 64.1MPa, sufficient rigidity, suitable for precision instrument shells and electronic brackets, meeting high - precision assembly requirements.

  3. Stable Dimensional Control - Water absorption rate of 2.3%, small dimensional shrinkage after molding, suitable for thin - walled and complex structural parts, ensuring product assembly accuracy and appearance consistency.

  4. Efficient Molding Processing - Powder form for easy dispersion, suitable for injection molding, extrusion and thermoforming, helping efficient mass production of rigid components and reducing processing costs.

Typical Applications Of ROTUBA H4 Cellulose Acetate

  1. Consumer Toys - Used for building blocks, assembled models, etc., high rigidity and deformation resistance, non - toxic and environmentally friendly, ensuring children's use safety and product durability.

  2. Precision Instrument Shells - Suitable for instrument and sensor shells, high strength and dimensional stability, ensuring instrument accuracy and protection performance.

  3. Spectacle Frame Components - Used for frame bodies and temples, high hardness and not easy to deform, improving wearing comfort and product texture.

  4. Automotive Interior Parts - Suitable for instrument panel buckles and door panel trim strips, sufficient rigidity and high temperature resistance, ensuring stable structure and beauty of interior decoration

Specifications Of ROTUBA H4 Cellulose Acetate

Chemical NameCellulose Acetate
CAS Number9004-35-7
Chemical Formula[C₆H₇O₂(OH)₃₋ₘ(OOCCH₃)ₘ] (m=0-3)
Physical FormPowder
Specific Gravity1.29 g/cm³
Rockwell Hardness101R
Tensile Strength40.3 MPa (Yield)49.6 MPa (Break)
Flexural Strength (Yield)64.1 MPa
Flexural Modulus1520 MPa
Elongation (Yield)28%
Izod Notched Impact Strength150 J/m (23°C)53 J/m (-40°C


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