tpee：熱塑性聚酯彈性體簡(jiǎn)稱(chēng)TPEE或COPE，是一類(lèi)含有PBT(聚對(duì)苯二甲酸丁二醇酯)聚酯硬段(結(jié)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(jí)彈性體，具有機(jī)械強(qiáng)度高、彈性好、抗沖擊、耐蠕變、耐寒、耐彎曲疲勞性、耐油、耐化學(xué)藥品和溶劑侵蝕等優(yōu)點(diǎn)，具有良好的加工性，并可填充、增強(qiáng)及合金化改性，在汽車(chē)零部件、液壓軟管、電纜電線、電子電器、工業(yè)制品、文體用品、生物材料等領(lǐng)域得到了廣泛的應(yīng)用。

供應(yīng):廠家直銷(xiāo)tpee原料耐高溫

為了考察自制膦酸酯阻燃劑(DP-FR)對(duì)熱塑性聚酯彈性體(TPEE)熱性能的影響, 測(cè)得了阻燃TPEE(FRTPEE)共混材料空氣氣氛下非等溫?zé)嶂?/span>(TG)數(shù)據(jù), 利用Kissinger 和Flynn-Wall-Ozawa 兩種動(dòng)力學(xué)方法, 分別求得了FR-TPEE 熱氧降解反應(yīng)活化能Ea .結(jié)果表明:DP-FR對(duì)FR-TPEE 的初始分解溫度、降解溫度影響不大, 對(duì)反應(yīng)活化能稍有影響, 阻燃材料仍具有很高的熱穩(wěn)定性.研究結(jié)果還表明:DP-FR 提高了FR-TPEE 熱氧降解的質(zhì)量保留率, 顯示出較好的阻燃性.關(guān)鍵詞:熱塑性聚酯彈性體(TPEE);阻燃劑;動(dòng)力學(xué);熱氧降解;反應(yīng)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