Mechanical properties of mica‐filled PBT/ABAS composites

Abstract

Tensile properties and Izod impact strength of mica-filled composites of poly(butylene terephthlate) (PBT)/polyacrylonitrile-butyl acrylate-styrene (ABAS) were studied at mica concentration range 0 to 0.14 volume fraction, (U f ). Tensile properties such as tensile modulus, strength, and breaking strain were normalized by dividing the data with the crystallinity (%) of the major component PBT in the composites and the matrix blends. The normalized relative tensile properties were compared with simple models to evaluate the interphase interactions between the matrix (i.e. PBT/ABAS blend) and the dispersed phase mica. Mica reinforced the blend increasing the tensile modulus and strength with mica concentration while the strain-at-break was increased marginally up to U f ¼ 0.04 and decreased beyond this U f . The impact strength, however, decreased with increase in U f due to enhanced matrix stiffening and lack of plastic deformation of the matrix. Scanning electron microscopic studies revealed good dispersion of mica in the composites. The effect of surface treatment with a zirconate coupling agent, NZ-97, on the above properties has also been examined.

Amorphous Poly(ethylene terephthalate) Composites with High-Aspect Ratio Aluminium Nano Platelets

“…With untreated clay [ 50 ] and graphene [ 39 ] in amorphous PET, the impact resistance decreased well below that of the unfilled plastic with an increase of filler loading. A similar trend is seen with mica in polyphenylene oxide [ 47 ], mica in PBT [ 55 ], and talc in PP [ 56 ], and in a conductive plastic of acrylonitrile-butadiene-styrene (ABS) filled with 1–5 vol.% of chopped steel fibres [ 7 ].…”

Experimental and theoretic studies on sound transmission loss of laminated mica‐filled poly(vinyl chloride) composites

“…Some works reported that the presence of mica platelets restricts the mobility or deformability of PVC molecules and consequently leads to an increase of elastic modulus 28–30. According to Eq.…”

EG/TPU composites with enhanced flame retardancy and mechanical properties prepared by microlayer coextrusion technology

“…Although the addition of llers can improve the ame retardancy of the composites, it probably also greatly deteriorate the mechanical properties of the materials due to the promoted cracks spread in polymer matrix induced by llers. 36,37 It has been conrmed that the microlayer coextrusion technology can greatly alleviate the negative effect of the deteriorate in the mechanical properties of the composites due to the addition of the ller. 38,39 Therefore, in this work, tensile tests are performed to investigate the inuence of EG ller orientation and dispersion on the tensile strength and elongation at break of TPU composites.…”