合成技术及应用
閤成技術及應用
합성기술급응용
SYNTHETIC TECHNOLOGY AND APPLICATION
2015年
2期
5-9
,共5页
PBT%固相缩聚%工艺%性能
PBT%固相縮聚%工藝%性能
PBT%고상축취%공예%성능
PBT%SSP%process%performance
通过 PBT切片固相缩聚（SSP）实验，分析讨论了温度、时间、氮气流量和基础切片性能指标等因素对 PBT固相缩聚反应的影响。结果表明温度、氮气流速、端羧基值对于 PBT 固相缩聚有显著影响，并均有明显的拐点：温度为190℃，氮气流速为50 mL ／min，端羧基值为17．33 mol ／t。
通過 PBT切片固相縮聚（SSP）實驗，分析討論瞭溫度、時間、氮氣流量和基礎切片性能指標等因素對 PBT固相縮聚反應的影響。結果錶明溫度、氮氣流速、耑羧基值對于 PBT 固相縮聚有顯著影響，併均有明顯的枴點：溫度為190℃，氮氣流速為50 mL ／min，耑羧基值為17．33 mol ／t。
통과 PBT절편고상축취（SSP）실험，분석토론료온도、시간、담기류량화기출절편성능지표등인소대 PBT고상축취반응적영향。결과표명온도、담기류속、단최기치대우 PBT 고상축취유현저영향，병균유명현적괴점：온도위190℃，담기류속위50 mL ／min，단최기치위17．33 mol ／t。
To reveal the influence factors on solid state polymerization of PBT,we conducted a series of PBT SSP experiments.By these experiments,the effects on PBT SSP reaction,such as temperature,reaction time,Ni-trogen flow and the reaction chip′s physicochemical property,were all discussed in detail.It showed that the tem-perature,nitrogen flow rate and the amount of carboxyl end groups all had important influence on the PBT SSP, which had significant inflection point,that was temperature at 1 90 ℃,nitrogen flow rate at 50 mL /min and termi-nal carboxyl at 1 7.33 mol /t.
