《Table 3 Characteristic TGA data of POSS-modified PU/EP》

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《Improving Damping Properties and Thermal Stability of Epoxy/Polyurethane Grafted Copolymer by Adding Glycidyl POSS》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

Weighed castor oil and an appropriate amount of TDI（control the NCO/OH ratio at 1.3）were added to the round bottom flask，and the mixture was stirred with magnetic stirrer at 65°C.After 45 min，the polyurethane pre-polymer was formed.Then the calculated amounts of DGEBA and POSS were added to the pre-polymer and stirred for 30 min to make the mixing system uniform and transparent.Then the curing agent（MOCA）dissolved in tetrahydrofuran（THF）was poured into the flask while stirring vigorously.The amount of curing agent was specially noticed to ensure that the reactive epoxy groups in POSS were reacted completely.The final products were degassed under vacuum and poured into glass mould and allowed to cure at 120°C for 6 h.In our study，the weight ratio of PU/EP was 4/3 for the copolymer.The raw material consumption is shown in Table 1，and the weight ratios of POSS to the PU/EP grafted copolymer were0.1/100（0.1/100 expressed as 0.1%for facility），0.2/100（0.2%），0.5/100（0.5%），1/100（1%），3/100（3%），5/100（5%），and 10/100（10%），respectively.