季戊四醇

  • 网络pentaerythritol;PER;PETN;Penta
季戊四醇季戊四醇
  1. 通过对防火涂料进行热重分析、差示量热扫描分析联合红外分析,对多聚磷酸铵(APP)-三聚氰胺(MEL)-季戊四醇(PER)阻燃防火性能有较深入的探讨。

    The research of anti-combustion properties was furthered on APP ( ammonium polyphosphate ), MEL ( melamine ) and PER ( pentaerythritol ) by thermogravimetric analysis , differential scanning calorimetry and infrared technique .

  2. 含手性轴的季戊四醇双缩醛的NMR研究

    An NMR Study on Pentaerythritol Diacetals with Chiral Axes

  3. 选择季戊四醇降低了发泡剂H的分解温度;

    Choice The decomposing temperature of foamer H was dropped by using pentaerythrite .

  4. 聚磷酸铵/季戊四醇复合膨胀型阻燃剂阻燃ABS的研究

    Study on Intumescent Flame Retardant APP / PER Retarded ABS

  5. 本文研究了回收季戊四醇溶液或季戊四醇母液加压水解时pH值、压力和时间等因素对缩醛水解的影响。

    The factors such as pH value , pressure and time in pressurized hydrolysis of pentaerythrite solution and pentaerythrite mother liquor are studied .

  6. 以油酸和季戊四醇(PE)为原料,对甲苯磺酸为催化剂,通过直接酯化的方法合成了季戊四醇油酸酯。

    Pentaerythritol oleic acid ester was prepared through the esterification of oleic acid and pentaerythritol with p-toluene sulfonic acid as catalyst .

  7. 填料是二氧化钛(B),添加剂是三氧化二锑(C)、季戊四醇(D)、氯化石腊(E)。

    The packing was titanium dioxide ( B ) . The additives were antimonous oxide ( C ), pentaerythritol ( D ) and chlorinated paraffin ( E ) .

  8. 苄基磺酸官能化MCM-41介孔分子筛催化合成季戊四醇三丙烯酸酯

    Catalytic synthesis of pentaerythritol triacrylate on benzyl sulphonic acid functionalized MCM-41

  9. 选用季戊四醇及尿素降低了发泡剂H的分解温度,解决了泡体的交联速率与发泡剂的分解速率相配合的问题;

    Solving the cooperation problem of crosslinking velocity of foam and decomposing velocity of blowing agent through reducing the decomposing temperature of blowing agent H by adding pentaerythrite and carbamide ;

  10. 本论文采用了聚磷酸铵(APP)、季戊四醇(PER)和三聚氰胺(MN)为基本的膨胀阻燃体系。

    In this paper , the IFR system based on PE , including ammonium polyphosphate ( APP ), pentaerythritol ( PER ) and melamine ( MN ) was studied .

  11. 其次,研究了膨胀型阻燃剂阻燃HDPE,采用膨胀型阻燃剂&聚磷酸铵和季戊四醇(APP/PER)体系对HDPE进行阻燃。

    Secondly , the typical system of intumescent fire retardant-APP-PER ( pentaerythritol ) was used to hold back the combustion of HDPE .

  12. TiO2/SO4~(2-)催化季戊四醇双缩醛或双缩酮的合成

    Synthesis of Diacetals from Aldehydes and Ketones with Pentaerythritol Catalysed by TiO_2 / SO_4 ~ ( 2 - ) Solid Superacid

  13. 以松香、反丁烯二酸(FA)、烷基酚、多聚甲醛、季戊四醇等为原料,采用松香改性酚醛树脂一步法的合成工艺进行树脂的合成研究。

    The resin was synthesized by one-step process employing rosin , fumaric acid ( FA ), alkyl-hydroxybenzene , polyphosphate formaldehyde and pentaerythritol as raw materials .

  14. 研究了三聚氰胺磷酸盐(MP)和季戊四醇(PER)作为膨胀型阻燃剂(IFR)在乙烯-醋酸乙烯酯共聚物(EVA)中的阻燃作用。

    Flame retardation of EVA copolymer using melamine phosphate ( MP ) and pentaerythritol ( PER ) as intumescent flame retardants ( IFR ) was investigated .

  15. 研究了H3PW(12)O(40)/C催化剂对丙烯酸(AA)和季戊四醇(PE)酯化反应的催化活性。

    The catalytic activity of H3PW1O40 / C in the esterification of acrylic acid ( AA ) with pentaerythritol ( PE ) was systematically studied .

  16. TGA曲线显示,共聚酯的起始分解温度相差很小,加入了季戊四醇的共聚酯比纯聚酯的分解速度加快。

    TG curve showed that the initial decomposition temperature of co-polyesters was no distinct difference , but the decomposition rate of co-polyester is faster than pure PET .

  17. 采用正交设计法分析了聚磷酸胺(APP)、季戊四醇(PER)、三聚氰胺(MEL)作为一种混合体系对聚苯乙烯(PS)的阻燃作用。

    The flame retardance of a composite system consisting of ammonium polyphosphate ( APP ), pentaerythritol ( PER ) and melamine ( MEL ) used for polystyrene ( PS ) was studied with orthogonal design method .

  18. 研究了协效剂氧化锌(ZnO)对聚磷酸铵(APP)、季戊四醇(PER)、氰尿酸三聚氰胺(MCA)膨胀阻燃聚丙烯(PP)体系的阻燃协效作用。

    The effect of synergist zinc oxide on flame retardant synergism of ammonium polyphodphate ( APP ) / pentaerythrito ( PER ) / melamine cyanurate ( MCA ) / polypropylene ( PP ) intumescent flame retardancy system was studied .

  19. 将多聚磷酸铵(APP)季戊四醇(PT)三聚氰胺(M)体系选作膨胀型阻燃剂,研究了聚丙烯/膨胀型阻燃添加剂(PP/IFR)共混物的熔化及非等温结晶行为。

    Ammonium polyphosphate ( APP ) - pentaerythritol ( PT ) - melamine ( M ) system was selected as an intumescent flame retardant ( IFR ), the nonisothermal crystallization and melting behavior of PP / IFR composites were studied .

  20. 将一种膨胀阻燃促进剂ZEO加入APP(聚磷酸铵)/PER(季戊四醇)膨胀阻燃剂中,用于阻燃PP(聚丙烯)。

    ZEO , an expansion flame retardant promoter , was added to a mixture of APP ( ammonium polyphosphate ) and PER ( pentaerythritol ), to be used for the preparation of expansion flame retardant PP ( polypropylene ) .

  21. 具体研究内容和结果如下:1、研究了三种硫化助剂&丙三醇、三羟甲基丙烷和季戊四醇对共聚型氯醚橡胶(ECO)硫化特性、交联密度及力学性能的影响。

    Details are as follows : 1 . Effects of three kinds of vulcanization assistants ( glycerol , trimethylolpropane , pentaerythritol ) on the curing characteristics , crosslinking densities and mechanical properties of epichlorohydrin rubber have been evaluated .

  22. 以多聚磷酸铵(APP)季戊四醇(PT)三聚氰胺(M)为膨胀型阻燃体系(IFR),氯化橡胶为基材树脂,制备阻燃涂料。

    Ammonium polyphosphate ( APP ) - pentaerythritol ( PT ) - melamine ( M ) systems have been chosen as an intumescent flame retardant ( IFR ), chlorination rubber as matrix resin to prepare flame resistant coating .

  23. 采用分步加料法,以己二酸、1,4-丁二醇、季戊四醇、二羟甲基丙酸(DMPA)和丙烯酸为原料合成了光固化聚酯丙烯酸酯预聚体;

    In this paper , UV-curable polyester acrylate oligomer was synthesized by stepwise feeding process with adipic acid , 1,4-butanediol , pentaerythritol , DMPA , acrylate as reactive monomer .

  24. 首次以孔径分布范围合适的P(GMA/EDMA)微球为基质,键合甘油、季戊四醇、二乙醇胺、δ-葡萄糖酸内酯等含有多羟基一类小分子化合物进行亲水化改性反应。

    Using PGMA / EDMA beads with suitable pore size distribution range as matrix , a series of hydrophilic modified reactions were carried out for the first time by using small molecular compounds , such as glycerol et al .

  25. 实验确定了氢溴酸与季戊四醇的最佳摩尔比为2.5∶1,最佳反应时间为6~8h,最佳反应温度为回流温度。

    It was shown that the optimum molar ratio between hydrobromic acid and pentaerythrite was 2.5 to 1 for 6 to 8h of optimum reaction time and reflux temperature as optimum reaction temperature .

  26. 应用柱前衍生-气相色谱法分离并测定了反应混合物中同存的季戊四醇(MPE)和双季戊四醇(DPE)、衍生化反应系在120℃加热的封闭试管中进行。

    Gas chromatography was applied to the separation and determination of pentaerythritol ( MPE ) and dipentaerythritol ( DPE ) in the reaction mixture by a precolumn derivatization process .

  27. 用磷酰基季戊四醇(PEPA)替代传统的季戊四醇作为炭源,与APP、三聚氰胺复合组成膨胀型阻燃剂(IFR),制备了膨胀型阻燃聚丙烯(IFR-PP)。

    PEPA replaced pentaerythritol ( PER ) as a carbonization agent with APP and melamine composed intumescent flame retardant ( IFR ), and prepared intumescent flame retardant PP ( IFR-PP ) .

  28. 季戊四醇型HTPB-PU弹性体的研究

    Studies of HTPB-PU Elastomers with Extender Pentaerythrite

  29. 采用196nm波长紫外分光光度检测器,C18烷基键合相分离柱,水为流动相,反相高效液相色谱法同时测定了季戊四醇生产母液中的季戊四醇和甲酸钠含量。

    A method for simultaneous determination of pentaerythritol and sodium formate by reversed-phase high performance liquid chromatography with C 18 column , water as mobile phase and 196 nm ultraviolet photometric detector was studied .

  30. 以高价铈盐(硝酸铈铵)和多羟基有机物(丙三醇、季戊四醇、蔗糖)组成的氧化还原引发体系为引发剂引发丙烯酰胺(AM)自由基聚合,采用1H-NMR和SEC方法对产物进行结构表征。

    Acrylamide polymerization was conducted using Ce ~ ( 4 + ) and multi-hydroxyl reducer ( such as 1,2,3-propanetriol , pentaerythritol and sucrose ) as initiator systems . Polyacrylamide synthesized were characterized by () ~ 1H-NMR and SEC , and star-structure was displayed .