CAJ | 학술논문

制备了聚苯乙烯(PS)／聚对苯二甲酸乙二醇酯-1，4-环己二甲醇酯(PETG)合金体系，以超临界二氧化碳为物理发泡剂，采用间歇法制备了PS和PS／PETG合金发泡试样。通过旋转流变仪对PS和PS／PETG合金的流变性能进行测试，并用扫描电子显微镜对PS／PETG合金微观形貌和泡孔形貌进行表征，探讨了相态结构对PS／PETG合金发泡行为的影响。结果表明，在PS／PETG合金体系中，PETG为分散相，PS为基体相；在PS与PS／PETG合金发泡过程中，由于PS／PETG合金相界面处成核能垒低，利于泡孔成核，PS／PETG泡沫试样较PS泡沫试样泡孔密度大，泡孔尺寸小且均一。
제비료취분을희(PS)／취대분이갑산을이순지-1，4-배기이갑순지(PETG)합금체계，이초림계이양화탄위물리발포제，채용간헐법제비료PS화PS／PETG합금발포시양。통과선전류변의대PS화PS／PETG합금적류변성능진행측시，병용소묘전자현미경대PS／PETG합금미관형모화포공형모진행표정，탐토료상태결구대PS／PETG합금발포행위적영향。결과표명，재PS／PETG합금체계중，PETG위분산상，PS위기체상；재PS여PS／PETG합금발포과정중，유우PS／PETG합금상계면처성핵능루저，리우포공성핵，PS／PETG포말시양교PS포말시양포공밀도대，포공척촌소차균일。
Polystyrene(PS)/poly(ethylene terephthalate glycol) (PETG) alloys were prepared.Then,PS and PS/PETG alloys were foamed by the solid-state foaming.Supercritical carbon dioxide was used as physical foaming agent.The rheological properties of PS and PS/PETG alloys were tested by the dynamic rotational rheometer,and dispersion morphologies and foam morphologies were observed by the scanning electron microscope.The effect of dispersion morphology of PS/PETG alloys on their foaming behavior was discussed.The results showed that PETG phase was well dispersed in PS. Compared with PS foam,the increased cell density,decreased cell size and homogenerious cellular size distribution was formed in PS/PETG alloy foam,due to its the easier cellular nucleation in the interface of PS and PETG phases.