Polycarbonate(PC) is thermodynamic incompatible with Nylon 6(PA6). Addition of compatibilier and modifier in PC and PA6 blends can lower the interface energy, increase the compatibility, and get a stable PC/PA6 alloy....Polycarbonate(PC) is thermodynamic incompatible with Nylon 6(PA6). Addition of compatibilier and modifier in PC and PA6 blends can lower the interface energy, increase the compatibility, and get a stable PC/PA6 alloy. PC/PA6 alloys were prepared by twin screw extrusion compounding process. The mechanical property was measured. The crystal structure and properties were studied with X ray diffraction(XRD) and differential scanning calorimetry(DSC). The crystal structure of PA6 is affected dramatically and a new crystal form is formed because the introduction of compatibilier and modifier enhanced the interaction between PC and PA6. The crystallinity is decreased and the crystallization kinetics is slowed down. The high performance PC/PA6 alloy has been obtained. [WT5HZ]展开更多
The effect of a new liquid crystalline copolymer(LCP-H2) on the crystallization structure of isotactic polypropylene(iPP) was investigated using wide-angle X-ray diffraction.The experimental results show that LCP-H2 o...The effect of a new liquid crystalline copolymer(LCP-H2) on the crystallization structure of isotactic polypropylene(iPP) was investigated using wide-angle X-ray diffraction.The experimental results show that LCP-H2 of low mass fraction can induce β-form in iPP.The nucleating activity of LCP-H2 mainly depended on its content and crystallization temperature.The content of β-form(Kβ) increased with increasing the nucleator content and crystallization temperature,Kβ value reached a maximum value(35%) when the nucleator mass fraction was 0.8% and the crystallization temperature was 125 ℃.展开更多
文摘Polycarbonate(PC) is thermodynamic incompatible with Nylon 6(PA6). Addition of compatibilier and modifier in PC and PA6 blends can lower the interface energy, increase the compatibility, and get a stable PC/PA6 alloy. PC/PA6 alloys were prepared by twin screw extrusion compounding process. The mechanical property was measured. The crystal structure and properties were studied with X ray diffraction(XRD) and differential scanning calorimetry(DSC). The crystal structure of PA6 is affected dramatically and a new crystal form is formed because the introduction of compatibilier and modifier enhanced the interaction between PC and PA6. The crystallinity is decreased and the crystallization kinetics is slowed down. The high performance PC/PA6 alloy has been obtained. [WT5HZ]
文摘The effect of a new liquid crystalline copolymer(LCP-H2) on the crystallization structure of isotactic polypropylene(iPP) was investigated using wide-angle X-ray diffraction.The experimental results show that LCP-H2 of low mass fraction can induce β-form in iPP.The nucleating activity of LCP-H2 mainly depended on its content and crystallization temperature.The content of β-form(Kβ) increased with increasing the nucleator content and crystallization temperature,Kβ value reached a maximum value(35%) when the nucleator mass fraction was 0.8% and the crystallization temperature was 125 ℃.
