In this paper, poly (butylene succinate) (PBS) and poly (butylene adipate/terephthalate) (PBAT) were used as matrix, rice hull powder and wollastonite as filler, diphenyl methane diisocyanate (MDI) and silane coupling...In this paper, poly (butylene succinate) (PBS) and poly (butylene adipate/terephthalate) (PBAT) were used as matrix, rice hull powder and wollastonite as filler, diphenyl methane diisocyanate (MDI) and silane coupling agent KH550 as crosslinking agents, and a series of composites were prepared by melt blending method. The effects of different coupling agents and dosage on composites were explored. It was characterized by universal mechanical testing machine and melt flow rate meter. The results showed that with the addition of PBAT and filler, the tensile strength of the composites decreased, while the notched impact strength of the composites increased in different degrees compared with that of pure PBS. MDI is more effective than KH550 in increasing melt viscosity.展开更多
文摘In this paper, poly (butylene succinate) (PBS) and poly (butylene adipate/terephthalate) (PBAT) were used as matrix, rice hull powder and wollastonite as filler, diphenyl methane diisocyanate (MDI) and silane coupling agent KH550 as crosslinking agents, and a series of composites were prepared by melt blending method. The effects of different coupling agents and dosage on composites were explored. It was characterized by universal mechanical testing machine and melt flow rate meter. The results showed that with the addition of PBAT and filler, the tensile strength of the composites decreased, while the notched impact strength of the composites increased in different degrees compared with that of pure PBS. MDI is more effective than KH550 in increasing melt viscosity.
