tpee：熱塑性聚酯彈性體簡稱TPEE或COPE，是一類含有PBT(聚對苯二甲酸丁二醇酯)聚酯硬段(結晶相)和脂肪族聚酯或聚醚(非晶相)軟段的線型嵌段共聚物。TPEE屬于高性能工程級彈性體，具有機械強度高、彈性好、抗沖擊、耐蠕變、耐寒、耐彎曲疲勞性、耐油、耐化學藥品和溶劑侵蝕等優點，具有良好的加工性，并可填充、增強及合金化改性，在汽車零部件、液壓軟管、電纜電線、電子電器、工業制品、文體用品、生物材料等領域得到了廣泛的應用。

供應:長期現貨tpeep-90b擠出級

為了考察自制膦酸酯阻燃劑(DP-FR)對熱塑性聚酯彈性體(TPEE)熱性能的影響, 測得了阻燃TPEE(FRTPEE)共混材料空氣氣氛下非等溫熱重(TG)數據, 利用Kissinger 和Flynn-Wall-Ozawa 兩種動力學方法, 分別求得了FR-TPEE 熱氧降解反應活化能Ea .結果表明:DP-FR對FR-TPEE 的初始分解溫度、降解溫度影響不大, 對反應活化能稍有影響, 阻燃材料仍具有很高的熱穩定性.研究結果還表明:DP-FR 提高了FR-TPEE 熱氧降解的質量保留率, 顯示出較好的阻燃性.關鍵詞:熱塑性聚酯彈性體(TPEE);阻燃劑;動力學;熱氧降解;反應活化能

Abstract :T he effect s of pho spho nate ester f lame re tardant (DP-FR)o n the rmal stability of f lame re tardant thermo plastic polyester elastomer (FR-TPEE)blends were studied .The kine tics o f the thermal o xidat ive degradation o f FR-TPEE blends w ere invest igated by non-iso thermal thermog ravime tric analy sis in air .Kissinger method and Fly nn-Wall-Ozawa method had been used to dete rmine the activat ion energies o f FRTPEE deg radatio n , respectively .The resul ts show ed that DP-FR had a li t tle inf luence on init ial deg radation temperature , maximum deg radation temperature and activ ation energies , but the FR-TPEE blends still had g ood thermal stabili ty .The result s also show ed that FR-TPEE blends had high char yield ,and also demo nst rated the good f lame retardancy of DP-FR .

Key words:thermo plastic po lyester elastomer (TPEE);f lame retardant (FR);kine tics ;thermal o xidat ive deg radation ;activation energy