CAJ | 학술논문

以可生物降解聚（3-羟基丁酸酯-co-4-羟基丁酸酯）[P(3,4)HB]为基体，有机改性层状化合物α-磷酸锆（OZrP）为增强相，采用溶液插层法制备了 P(3,4)HB/OZrP 纳米复合材料。分别用 X 射线衍射仪（XRD）、扫描电镜（SEM）、偏光显微镜（POM）、热重分析仪（TGA）和差式扫描量热仪（DSC）等对其微观结构、热稳定性、结晶行为及降解性能进行了表征与分析。研究表明，具有纳米片层结构的 OZrP 能均匀分散在P(3,4)HB基体中形成纳米复合结构，OZrP能通过异相成核作用促进P(3,4)HB的结晶，并能促进P(3,4)HB的降解，但降低P(3,4)HB 的热稳定性。
이가생물강해취（3-간기정산지-co-4-간기정산지）[P(3,4)HB]위기체，유궤개성층상화합물α-린산고（OZrP）위증강상，채용용액삽층법제비료 P(3,4)HB/OZrP 납미복합재료。분별용 X 사선연사의（XRD）、소묘전경（SEM）、편광현미경（POM）、열중분석의（TGA）화차식소묘량열의（DSC）등대기미관결구、열은정성、결정행위급강해성능진행료표정여분석。연구표명，구유납미편층결구적 OZrP 능균균분산재P(3,4)HB기체중형성납미복합결구，OZrP능통과이상성핵작용촉진P(3,4)HB적결정，병능촉진P(3,4)HB적강해，단강저P(3,4)HB 적열은정성。
In this study,the nanocomposites based on poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P(3,4)HB) and organically-modified layered α-zirconium phosphate(OZrP) were prepared by solution intercalation. The micro-structure , thermal properties , crystallization behavior and degradation properties of P(3,4)HB and its nanocomposites were investigated by XRD ,SEM, TGA,DSC and POM. The crystal properties of P(3,4)HB were greatly improved,which indicated that a small amount of OZrP (3%) dispersed at nanoscale in P(3,4)HB matrix could act as nucleating agent and facilitate crystallization of polymer by heterogeneous nucleation. Degradation experiment results showed that OZrP could improve degradability of P(3,4)HB. In addition,OZrP could reduce thermostability of P(3,4)HB.