29 research outputs found

    高性能鞋用胶粘剂研究技术进展

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    介绍了氯丁橡胶胶粘剂技术的发展过程,并着重就目前配合国家环保政策推出的不含“三苯”接枝氯丁胶粘剂的研制开发及应用推广过程作了论述,并揭示了其发展方向

    金属性Zintl相化合物RE_3Cu_3Sb_4(RE=Nd,Sm,Tb,Dy,Ho)的合成、结构及成键特性

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    用电弧熔炼方法合成了化合物rE3Cu3Sb4(rE= nd,SM ,Tb,dy,HO), 采用粉末X射线衍射方法测定了其晶体结构。化合物属立方晶系,y3Au3Sb4 类型, 空间群I43d(nO.220),皮尔森玛CI40。晶胞参数:nd3Cu3Sb4 :A=0.96749(1) nM, V=0.90561(3) nM3;SM3Cu3Sb4:A= -0.96145(1) nM ,V=0.88875(3) nM3 ;Tb3Cu3Sb4: A=0.95362(1) nM , V= 0.86721(3)nM3;dy3Cu3Sb4: A=0.95088(1) nM , V=0.85975(3) nM3;HO3Cu3Sb4 : A=0.9488(2) nM , V=0.8541(5) nM3。每个单胞中包含4 个化合式量。此结构中,Cu 原子均处于Sb 原子所形成的配位四面体中心, 这些共价结合的配位四面体通过共顶最终联接形成三维CuSb 网络,稀土原子则散布在网络之间的空隙中。化合物电荷平衡结构式可表示为rE3+3 Cu1+3 Sb3-4 , 化合物具有导电性, 为金属性zInTl 相。原子成键具有典型过渡性。原子的“配位数”遵从配位环境规律。化合物

    RESEARCH OF AROMATIC HYDROCARBON FREE AND HIGH PERFORMANCES ADHESIVES FOR SHOE

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    联系人及第一作者: 戴李宗, 男, 39 岁, 博士, 副教授.[中文文摘]针对传统鞋用胶粘剂溶剂中所含“三苯”(苯、甲苯和二甲苯)溶剂的毒性问题,研制开发了不含“三苯”的高性能鞋用接枝氯丁胶粘剂和聚氨酯胶粘剂,并就合成过程中各种因素对胶粘剂性能的影响进行了讨论,解决了长期困扰制鞋行业和胶粘剂生产厂家并造成环境污染的“三苯”毒害问题。[英文文摘]In this paper,aiming directly at the poison of aromatic hydrocarbon solvent (including benzene, toluene and xylene) in the traditional adhesives for shoe, the aromatic hydrocarbon free and high performances adhesives, graft neoprene adhesives and polyurethane adhesives, have been studied and developed. The performances have been characterized by using IR, XPS, GC, 1H NMR, elementary analysis and weighting technique. And various factors, which influence the prformances of adhesives in the synthesis process, such as reaction temperature,conversion rate, graft rate, multifarious additives and so on,have been discu ssed. Because of the employing of low toxicity mixed solvent,these adhesives are friendly to environment.They have come to been produced in industry,and if they can been used widely, the problem of the arom atic hydrocarbon poison that perp lexed the shoem aking industry and the adhesives manufactures ch ronically will been solved completely and the continuable development in shoem aking industry will com etrue authentically

    Study of Antipoisoning for High Performance Graft Neoprene Adhesives for Shoes

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    戴李宗 男,39岁,副教授。发表论文50余篇。[中文文摘]针对传统鞋用接枝氯丁胶黏剂中所含“三苯”(苯、甲苯和二甲苯)溶剂的毒害问题,对高性能鞋用接枝氯丁胶黏剂溶剂的低毒化进行了研究,并就合成过程中各种因素对胶黏剂性能的影响进行了讨论。[英文文摘]This paper aimed directly at the poison of aromatic hydrocarbon solvent (including benzene, toluene and xy-lene) in the traditional high performance graft neoprene adhesives for shoes. Present work including the studying of antipoisoning for the solvent and the discussion of various factors which influence the performances of adhesives in the synthesis process

    Study of water-borne polyurethane (Ⅰ)

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    作者简介周善康硕士, 1999年毕业于厦门大学化工学院, 现在北京宝洁公司工作。 , 通讯联系人:戴李宗,博士,副教授。[中文文摘]较系统地阐述了关于水性聚氨酯研究的各个方面,包括其基本概念,研究开发背景,制备原理、方法和工艺,产物和涂膜的物理性能及其影响因素,应用领域等,并阐明了自乳化历程,乳液稳定机制。[英文文摘]These papers reviewed systematically on the various aspects of the study of water-borne polyurethane, emphatical - ly the preparative theories, technical methods, the physical performances, the influential factors of productions and their cast films . Furthermore, the R&D background, self-emulsifying process, the stablization mechanism of dispersion and the application fields are also introduced

    The study of water borne polyurethane(Ⅱ)

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    作者简介:周善康硕士,1999 年毕业于厦门大学化工学院,现在北京宝洁公司工作。 通讯联系人:戴李宗,博士,副教授。[中文文摘]较系统地阐述了关于水性聚氨酯研究的各个方面 ,包括其基本概念 ,研究开发背景 ,制备原理、方法和工艺 ,产物液体和胶膜的物理性能及其影响因素 ,以及应用领域等。并阐明了自乳化历程 ,乳液稳定机制。[英文文摘]These papers reviewed systematically on the various aspects of the study of water borne polyurethane,and expatiate emphatically on the preparative theories,methods and technics,the physical performances and influential factors of productions and their cast films.Furthermore, the R & D background,self emulsifying process,stabilization mechanism of dispersion and the application fields are also introduced

    Studies on Electrochemical and Catalytic Properties of Poly-m-chloraniline Modified Electrode

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    联系人简介: 戴李宗(1959 年出生),男, 博士, 副教授, 主要从事高分子化学及物理化学研究. E2mail: lzdai@xmu. edu. cn[中文文摘]聚苯胺作为电极修饰材料 ,已在传感器上显示出广泛的应用前景[1~ 4 ] .异丙醇 ( i- P)氧化[5,6 ] 是个较简单的反应 ,被广泛作为电催化研究的模型反应 .目前 ,i- P电化学氧化的研究集中于 Pt的多晶或单晶电极[7~ 9] ,Gonzales等 [10 ] 报道了 Pt- Sn共沉积的 PAn膜修饰电极上的异丙醇电氧化 ,但对复合材料的微观结构仍欠研究 .本文讨论 Pm Cl An基质性质对 Pt电沉积的影响 ,并探讨了 i- P在沉积 Pt微粒的 Pm Cl An功能膜电极上的氧化情况 .1 实验部分1 .1 电极的制备 聚间氯苯胺 ( Pm Cl An,本征态 ud,HCl掺杂态 d)采用乳液聚合法合成 [11] ,Mn=1 .85× 1 0 3.Pm Cl An( ud)在 1 8% HCl中加热搅拌 48h,抽滤 ,洗至中性 ,即得 Pm Cl An( d) .将Pm Cl An配成 3mg/m L的 DMF溶液 ,取一定量涂覆于铂电极表面上 ,置于 70℃烘箱中 1 5 min,烘干后 ,即得聚合物膜修饰电极 .将聚合物膜修饰电极置于 1 .0 mol/L HCl的 K2 PtCl6 饱和溶液中, 在- 0. 3~ 0 V 范围内进行控电位循环扫描(v= 5 mV ös, t= 5 m in) , P t 微粒将沉积在聚合物膜表面.[英文文摘]The electrochemical and catalytic properties of PmClAn modified electrode were studied by cyclic voltammetry. The results showed that PmClAn had an excellent electroactivity and proton doping increased the electroactivity. The Pt particles electrodeposited on PmClAn trend tow ards preferred orientation, and Pt(200) was the preferred face. It was also found that platinized PmClAn promotes isop ropanol oxidation, the polymer is not only as a dispersion media of P t particles form ing a “microheterogeneous catalysis system ”, but also has effect on electronic properties of Pt.国家教育部博士点专项科研基金项目 (批准号 :19990 3 840 4);中 -法先进研究计划 (PRA-2 0 0 1)资

    Effect of PEG Contentin Soft-segment on the Crystallization of Cast Film of Water-borne Polyurethane

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    合成了系列水性聚氨酯分散液 ,就分子链软段中亲水性链段聚乙二醇 (PEG)含量对聚氨酯涂膜结晶性的影响进行了探讨 .结果表明 ,水性聚氨酯膜中存在三种结晶微区 ,每一结晶微区熔融温度均随 PEG含量的变化而变化 ,且软段结晶形态与 PEG、聚己二酸丁二醇酯二醇 (PTAd)结晶形态相同 ,晶胞参数随 PEG含量的增加而增大 ,但较 PEG和 PTAd为小 .A series of water- borne polyurethanes were synthesized,and the effect of PEG content in soft- segment on the crystallization of their cast films was studied.The results indicate that there are three kinds of crystalline domains in the cast film,each of their melting points varies with the PEG content,and the form of the soft- segment crystal is the same as the ones of PEG and PTAd.Moreover,their cell parameters increase with the PEG content and are smaller than those of PEG and PTAd

    Electrochemical and Electrocatalytic Behavior of Poly-2,5-dimethoxyaniline Modified Electrode

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    通讯联系人:戴李宗[中文文摘]由乳液聚合法得到的聚 ( 2 ,5 -二甲氧基苯胺 ) ( PDMAn)制作导电聚合物膜修饰电极 ,并在其上用电化学法沉积 Pt微粒 ,SEM与 XRD用于表征其表面形态与晶面取向 ,同时研究异丙醇在金属化 PDMAn膜修饰电极上的氧化行为 .结果表明 ,Pt在 PDMAn膜上的沉积呈现 ( 2 0 0 )晶面择优取向的现象 ,而且聚合物掺杂后 ,电化学活性增强 ,沉积 Pt微粒的尺寸和粒径分布也发生变化 .金属化聚合物电极是一种微相异相催化体系 ,虽然异丙醇的氧化主要发生在 Pt微粒上 ,但聚合物不单纯作为金属微粒的分散介质 ,对铂微粒的性质也产生影响。[英文文摘]The platinum particles were electrodeposited on poly(2,5 dimethoxyaniline)(PDMAn) membrane modified electrode. The polymer was obtained by emulsion polymerization. The surface configuration and crystal orientation of Pt particles have been investigated by SEM and XRD. The results of the oxidation of isopropanol on platinized PDMAn modified electrode show that Pt particles deposited towards preferred orientation on Pt(200), and, the increase in polymer electroactivity due to proton doping affects the dimension and grain iness of deposited Pt particles. The metallized polymer modified electrode is proved to be a“microheterogeneous catalysis system ”.At them etallized polymer electrode the oxidation of isopropanol mainly took place on Pt particles,and the polymer not only plays a role as a dispersion medium but also affects the catalysis property of Pt particles.国家教育部博士点专项科研基金资助项目 (19990 3840 4
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