功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2012年
22期
3033-3036
,共4页
王海花%胡锦娟%费贵强%冷翠婷
王海花%鬍錦娟%費貴彊%冷翠婷
왕해화%호금연%비귀강%랭취정
聚吡咯%磺酸盐型水性聚氨酯%导电%原位化学氧化聚合%电阻性能
聚吡咯%磺痠鹽型水性聚氨酯%導電%原位化學氧化聚閤%電阻性能
취필각%광산염형수성취안지%도전%원위화학양화취합%전조성능
polypyrrole (PPy)%waterborne sulfonate polyurethane%conductive%in situ chemical oxidative polymerization%resistance property
以聚乙二醇(PEG1000)、异佛尔酮二异氰酸酯(IPDI)以及2,4-二氨基苯磺酸钠(DASS)为原料,通过预聚体法合成了磺酸盐型水性聚氨酯分散液(SWPU)。再以FeCl3为氧化剂,采用原位化学氧化聚合法使吡咯(Py)在SWPU中聚合,制备了磺酸盐型水性聚氨酯/聚吡咯(SWPU/PPy)导电复合材料。研究了制备条件(如投料比和投料顺序)、反应条件等对磺酸盐型水性聚氨酯/聚吡咯(SWPU/PPy)导电复合材料电阻性能的影响。红外光谱图表明PPy与SW-PU分子间存在氢键缔合。实验结果亦表明,最佳制备条件为:Py浓度为30%,n(FeCl3)/n(Py)=2.2,投料顺序为SWPU→Py→FeCl3,反应温度0℃(冰浴),反应时间为3h,SWPU/PPy电阻率可达到1Ω·cm。
以聚乙二醇(PEG1000)、異彿爾酮二異氰痠酯(IPDI)以及2,4-二氨基苯磺痠鈉(DASS)為原料,通過預聚體法閤成瞭磺痠鹽型水性聚氨酯分散液(SWPU)。再以FeCl3為氧化劑,採用原位化學氧化聚閤法使吡咯(Py)在SWPU中聚閤,製備瞭磺痠鹽型水性聚氨酯/聚吡咯(SWPU/PPy)導電複閤材料。研究瞭製備條件(如投料比和投料順序)、反應條件等對磺痠鹽型水性聚氨酯/聚吡咯(SWPU/PPy)導電複閤材料電阻性能的影響。紅外光譜圖錶明PPy與SW-PU分子間存在氫鍵締閤。實驗結果亦錶明,最佳製備條件為:Py濃度為30%,n(FeCl3)/n(Py)=2.2,投料順序為SWPU→Py→FeCl3,反應溫度0℃(冰浴),反應時間為3h,SWPU/PPy電阻率可達到1Ω·cm。
이취을이순(PEG1000)、이불이동이이청산지(IPDI)이급2,4-이안기분광산납(DASS)위원료,통과예취체법합성료광산염형수성취안지분산액(SWPU)。재이FeCl3위양화제,채용원위화학양화취합법사필각(Py)재SWPU중취합,제비료광산염형수성취안지/취필각(SWPU/PPy)도전복합재료。연구료제비조건(여투료비화투료순서)、반응조건등대광산염형수성취안지/취필각(SWPU/PPy)도전복합재료전조성능적영향。홍외광보도표명PPy여SW-PU분자간존재경건체합。실험결과역표명,최가제비조건위:Py농도위30%,n(FeCl3)/n(Py)=2.2,투료순서위SWPU→Py→FeCl3,반응온도0℃(빙욕),반응시간위3h,SWPU/PPy전조솔가체도1Ω·cm。
A series of waterborne sulfonate polyurethanes dispersions (SWt'U) was prepared through prepoty- merization method by reacting polyethylene glycol (PEG1000) and isophorone diisocyanate (IPDI) with 2,4-dia- mind-benzene sulfonie acid sodium salt (DASS) as chain extender. Then FeCI3 was employed as oxidant, therefore SWPU/polypyrrole (SWPU/PPy) conductive composite was prepared by in situ ehemical oxidative poly- merization of pyrrole (Py) in SWPU dispersions. The effects of different preparative conditions including feeding ratios, feeding sequences and reaction conditions on the conductivity of SWPU/PPy conductive composite were studied. Fourier infrared spectra demonstrated the presence of hydrogen-bonding interactions between SWPU and PPy. Results also showed that SWPU/PPy resistivity can achieve 1Ω·cm, when feeding sequence: SWPU →Py→FeCl3, Py concentration was 30%, reaction temperature was 0℃, reaction time was 3h and n (FeCl3) / n (Py) =2.2.