Preparing cellulose nanocrystal/acrylonitrile-butadiene-styrene nanocomposites using the master-batch method

• Published in: Carbohydrate polymers 2015-07, Vol.125, p.352-359
• Main Authors: Ma, Libo, Zhang, Yang, Meng, Yujie, Anusonti-Inthra, Phuriwat, Wang, Siqun
• Format: Article
• Language: English
• Subjects: ABS; Acrylic Resins - chemistry; Butadienes - chemistry; Cellulose - chemistry; Cellulose nanocrystal; Chemistry Techniques, Synthetic - methods; Composites; Extrusion; Master-batch; Nanocomposites - chemistry; Nanoparticles - chemistry; Polystyrenes - chemistry
• ISSN: 0144-8617; 1879-1344
• DOI: 10.1016/j.carbpol.2015.02.062

•High content of CNC (70wt%) master batch was successfully prepared.•Thermal stability and dispersibility and compatibility of CNC were improved.•Mechanical properties of ABS/CNC nanocomposites were improved.•CNC can be utilized environmentally, human friendly and cost effectively. The master-batch method provides a simple way to apply cellulose nanocrystal (CNC) as reinforcement in a hydrophobic matrix. The two-stage process includes making high-CNC content (70wt%) master batch pellets, then mixing acrylonitrile-butadiene-styrene (ABS) and maleic anhydride grafted polyethylene with the master batch pellets to prepare the ABS/CNC nanocomposite in extruder. SEM image indicates that self-assembled CNC nanosheets disperse evenly throughout the polymer matrix. The improved mechanical properties shown in tensile and DMA tests reveal that the CNC combines well with the ABS. TGA results show that the thermal degradation temperature of CNC in the master batch increases because of the protection of the ABS coating. This approach not only improves the dispersion ability and the thermal stability of CNC, but it is also applicable to use with other hydrophobic thermoplastics in industrial scale production.