Miscibility and dynamical properties of cellulose acetate/plasticizer
Most of these dielectric studies, however, have been focused on cellulose and its derivatives, and only few results have been reported about dielectric properties of plasticized cellulose acetate systems. Seymour et al., 1979 focused on phthalate plasticizers such as dioctyl phthalate and diphenyl phthalate.
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Eastman Cellulose Acetate Butyrate CAB-531-1 is a cellulose ester with a higher butyryl level than CAB-381 series esters. It offers improved compatibility, and due to its flexibility, it requires lower plasticizer modification. When combined with thermoplastic acrylic resins, it produces tough, weather and mar resistant films.
Technical information for Cellulose Acetate
Our cellulose acetate is quality controlled as general industrial raw material. It should be noted that cellulose acetate of our company is intended for raw materials for general industrial applications and is produced under a quality control as such. Cellulose acetate itself has no thermoplasticity.
Thermal Properties of Plasticized Cellulose Acetate and Its β
Cellulose acetate (CA), an organic ester, is a biobased polymer which exhibits good mechanical properties (e.g., high Youngs modulus and tensile strength). Its general properties can be tailored by the addition of low molecular plasticizers, which are also necessary for processing.
Study on Cellulose Acetate Butyrate/Plasticizer Systems by
Cellulose acetate butyrate (CAB) is a widely used binder in polymer bonded explosives (PBXs). However, the mechanical properties of PBXs bonded with CAB are usually very poor, which makes the...
- Can cellulose acetate be used as a plasticizer?
- Due to their high glass transition temperature, cellulose acetate-based systems are processed when blended with plasticizers. It is thus of utmost importance to study the miscibility and plasticizing effects of various molecules. We prepared CDA films via solvent casting method with diethyl phthalate as the plasticizer.
- Is secondary cellulose acetate plasticized by diethyl phthalate miscible?
- We study the miscibility and dynamical properties of secondary cellulose acetate plasticized by diethyl phthalate (DEP). Partial miscibility (characterized by differential scanning calorimetry) is observed above 25 wt% of DEP content. The α-relaxation of the system and its VFT/WLF behavior are studied over a broad frequency range.
- Are plasticized cellulose acetate systems dielectric?
- Most of these dielectric studies, however, have been focused on cellulose and its derivatives, and only few results have been reported about dielectric properties of plasticized cellulose acetate systems. Seymour et al., 1979 focused on phthalate plasticizers such as dioctyl phthalate and diphenyl phthalate.
- What causes -relaxation of plasticized cellulose acetate polymers?
- (Bao, 2015) have assumed that the β-relaxation of plasticized cellulose acetate polymers results from two different contributions: βrelaxation of cellulose acetate rich phase (which correspond to the secondary relaxation of unplasticized CDA) and α'-relaxation of plasticizer rich phase of plasticized CDA (specific to the CDA/plasticizer systems).
- What is partial miscibility of cellulose acetate system?
- Partial miscibility (characterized by differential scanning calorimetry) is observed above 25 wt% of DEP content. The α-relaxation of the system and its VFT/WLF behavior are studied over a broad frequency range. A new secondary relaxation is found for DEP-plasticized cellulose acetate system.
- What is the dynamical behavior of cellulose acetate (CDA)?
- The dynamical behavior of CDA is supposed to be governed by H-bonding and dipolar interaction network. Due to their high glass transition temperature, cellulose acetate-based systems are processed when blended with plasticizers. It is thus of utmost importance to study the miscibility and plasticizing effects of various molecules.
