Plasticizers in Paint & Coatings: Uses, Types and Selection
In addition, it is compatible with nitrocellulose, ethyl cellulose, most synthetic rubbers and high-butyryl cellulose acetate butyrate. According to the International Agency for Research on Cancer (IARC), it is "not classifiable as to its carcinogenicity to humans" (Group 3), suggesting inadequate evidence of human carcinogenicity.
Study on Cellulose Acetate Butyrate/Plasticizer Systems by
In the current study, seven plasticizers, including bis (2,2-dinitro propyl) formal/acetal (BDNPF/A or A3, which is 1:1 mixture of the two components), azide-terminated glycidyl azide (GAPA), n-butyl-N- (2-nitroxy-ethyl) nitramine (Bu-NENA), ethylene glycol bis (azidoacetate) (EGBAA), diethylene glycol bis (azidoacetate) (DEGBAA), trimethylol
Biodegradability of cellulose acetate｜Daicel corporation
2. Biodegradability of cellulose acetate. Cellulose acetate is highly biodegradable in soil and seawater. [1-4] Generally speaking, cellulose acetate is degraded into cellulose and acetic acid through hydrolysis with water and biodegradation by esterase. Subsequently, the main chain of cellulose is biodegraded (cleaved/decomposed) by cellulase
Study on Cellulose Acetate Butyrate/Plasticizer Systems by
Based on these results, it can be concluded that A3, Bu-NENA and GAPA are the most suitable plasticizers for CAB binder in improving mechanical and processing properties. Our work has provided a...
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 Young’s modulus and tensile strength). In recent decades, there has been significant work done to verify the thermal and thermomechanical behaviors of raw and plasticized cellulose acetate. In this study, the thermomechanical properties of plasticized cellulose acetate
- What is plasticized cellulose acetate (CA)?
- Plasticized cellulose acetate (CA) is one of the most applied bio-based polymers due to its structural properties and easy processing. Plasticizers are added to CA to increase workability, prevent degradation under processing conditions and ensure thermo-mechanical properties suitable for the intended final application.
- Which polar plasticizer is suitable for cellulose acetate?
- A polar plasticizer with a proton-acceptor character, such as an ester, is useful in polymers with average polarities , e.g., cellulose acetate. Apart from the chemistry of the selected plasticizer, other factors influence compatibility.
- Do plasticizers migrate out of cellulose acetate?
- Moreover, plasticizers that migrate out of the material could harm human health and contaminate the environment , . In this regard, understanding the mechanisms of CA plasticization is crucial to find room for improvement in tailoring cellulose acetate properties with a well-designed plasticizer molecule.
- Can acylating reagent be used to plasticize cellulose acetate?
- Overall, an acylating reagent consisting of a linear spacer segment attached to the cellulose chain with a terminal bulky aromatic group is the optimal structure for the internal plasticization of cellulose or cellulose acetate. Thermoplastic cellulose esters would resolve migration problems related to CA plasticized with external plasticizers.
- Is plasticized acetate a biodegradable material?
- In practice, most applications use cellulose acetate with DS 2.2–2.4, which is less prone to water absorption and, consequently, to biodegradation at ambient conditions. For these reasons, plasticized acetate, still used in niche sectors such as eyewear and jewelry, cannot be considered a biodegradable material. 6. Conclusions 6.1.
- Is cellulose acetate miscible?
- As a general rule for cellulose acetate, it is found that low molecular weight esters with a C-2 terminal group are miscible, those with C-3 may be miscible under favorable circumstances, and those of C-4 are not miscible with CA , , . This observation considerably limits the range of molecules used in CA as effective plasticizers. 4.
