论文部分内容阅读
ＤＳＣ和ＦＴＩＲ测试表明，结晶／非晶共混体系聚（β－羟基丁酸酯）（ＰＨＢ）／聚双酚Ａ羟基醚（ＰＢＨＥ）是部分相容的．熔融结晶退火可以大大提高共混物的结晶度，增加其相容性，７５／２５组分ＰＨＢ相结晶度最大，５０／５０组分（０２０）、（１３０）晶面微晶尺寸最大．ＳＡＸＳ研究表明，纯ＰＨＢ的中间层约为１．５ｎｍ，片层厚约４．０ｎｍ；共混物的中间层在２．０ｎｍ左右，片层厚在５．０—７．２ｎｍ之间，５０／５０组分片层最厚．７５／２５组分晶相和非晶相的密度差最大．
DSC and FTIR tests showed that the crystalline / amorphous blend system poly (β-hydroxybutyrate) (PHB) / poly (bisphenol A) hydroxyether (PBHE) was partially compatible. Melting crystallization annealing can greatly improve the crystallinity of the blend and increase its compatibility. The PHB phase of 75/25 component has the largest crystallinity, and the 50/50 component (020), (130) crystallite has the largest size. SAXS study showed that the pure PHB intermediate layer is about 1.5nm, the sheet thickness of about 4.0nm; the middle layer of the blend is about 2.0nm, the sheet thickness between 5.0-7.2nm, 50 / 50 component of the thickest layer. The density difference between the 75/25 component crystal phase and the amorphous phase is the largest.