Acrylated betulin as a comonomer for bio-based coatings. Part II: Mechanical and optical properties

作者：Auclair Nicolas; Kaboorani Alireza; Riedl Bernard^*; Landry Veronic

来源：Industrial Crops and Products, 2016, 82: 118-126.

DOI：10.1016/j.indcrop.2015.11.081

• Acrylated epoxidized soybean oil
• Tensile tests
• Hardness
• Abrasion resistance
• Optical clarity
• Color variation

Acrylated epoxidized soybean oil (AESO) is an interesting bio-based starting material for the development of biomaterials. Betulin, another bio-based product, can be extracted in large amounts from birch trees. Acrylated betulin (AB) was synthesized and added as a comonomer to the AESO at different loading levels (5 wt% and 10 wt%). AESO and AESO-AB mixture were cured photochemically to form films. The properties of the newly formulated coating systems were evaluated. The mechanical properties of cured AESO were affected by addition of AB comonomer. Modulus of elasticity (MOE) and tensile strength, hardness and abrasion resistance of the cured film increased, while strain at break was reduced. AB comonomer addition increased the glass transition temperature (T-g) of the cured AESO polymer while it yellowed AESO formulations and reduced optical clarity (transparency) of the cured film coating.

• 出版日期2016-4