阳离子氯丁胶乳在水泥浆料中的应用

阳离子氯丁胶乳适量掺入水泥砂、浆中即为氯丁胶乳水泥砂浆。这种砂、浆有结构力强、抗渗性能好等系列优点。介绍了这种砂、浆的施工和养护方法，介绍了其广泛用途。     

胶粘剂用氯丁胶乳

详细阐述了影响氯丁胶乳胶粘剂性能的因素，包括聚合物类型，乳化剂类型及氯丁橡胶结晶特性等，并介绍了商品氯丁胶乳的类型及选用方法。     

氯丁胶乳水泥与沥青

氯丁胶乳用于土木工程是近几年发展起来的新技术，氯丁胶乳除具有氯丁橡良好强力，耐热，耐气侯，油性能，不延燃，与许多建材粘合力好等特性外，还可与多种建筑材料混配，相互改性，满足土建工程某些特殊要求。     

氯丁胶乳砂浆在尿素厂房维修中的应用

根据尿素包装厂房出现的腐蚀现象和产生原因确定了整改思路,经过性能和价格比较,选用性价比高的氯丁胶乳砂浆对腐蚀的地面进行维修.介绍了应用时氯丁胶乳砂浆的配比、施工程序和要点.施工后解决了楼面面层起砂开裂、缝隙渗漏问题,可提高厂房的使用寿命.     

氯丁胶乳海绵

胶乳海绵多用天然胶乳制备,但其耐油、耐老化、耐燃等方面性能差。以氯丁胶乳制造的海绵制品,具有优越的耐燃性、耐油性、耐化学药品性、耐霉性及耐老化性,热老化后负荷能力下降较天然胶乳或丁苯胶乳海绵低。氯丁胶乳海绵可用于耐燃的船舶用寝具、车辆用座垫、医用床垫、火车轴承润滑油托,防燃海绵胶板和汽车用密封条等     

CRL—I型特种阳离子氯丁胶乳水泥砂浆在我公司的应用

本文介绍了ＣＲＬ－Ｉ型特种阳离子氯丁胶乳水泥砂浆的性能，防腐蚀原理，有关施工及应用的情况。     

氯丁胶乳改性水泥砂浆的性能和应用

以氯丁胶乳作为改性剂,对氯丁胶乳砂浆的性能与掺量的关系做了系统的分析,同时介绍材料在工程中的应用实例。     

建筑业用氯丁胶乳胶粘剂

建筑业用氯丁胶乳胶粘剂郭济中（天津橡胶研究所，３００１９３）受溶剂的限制，在一些应用领域中，溶剂型氯丁橡胶胶粘剂将被氯丁胶乳胶粘剂所取代。建筑业中，聚氯乙烯地板与水泥板、木板与装饰板或天花板、墙壁与护墙镶板的粘接，均可用氯丁胶乳胶粘剂。国外高度发达的...     

水性氯丁胶乳的制备、改性及应用

水性氯丁胶乳因其对环境友好、无毒、不可燃等优点而成为氯丁橡胶发展的一个重要分支。介绍了水性氯丁胶乳的制备方法、改性手段及其在水性胶粘剂领域中的应用。     

氯丁胶乳型胶粘剂专利

水基胶粘剂；氯丁胶乳的制备方法及其胶粘剂；氯丁胶乳的生产工艺及其水基胶粘剂组成；氯丁胶乳和胶粘剂组成；水基胶粘剂组成。     

Effects of monomer impurities on the emulsion polymerization of chloroprene and properties of polychloroprene. V. Effect of 1,3-dichloro-2-butene

The emulsion polymerization of chloroprene in the presence of 1,3-dichloro-2-butene in various concentrations up to 5% was studied. In contrast to all other common chloroprene impurities, no influence of this compound on the kinetics of chloroprene polymerization and the properties of polychloroprene was found. 1,3-Dichloro-2-butene does not cause polymer chain transfer and it is not able to copolymerize with chloroprene under the given polymerization conditions.     

乳液接枝法合成氯丁接枝胶MCR

用乳液接枝法合成了氯丁橡胶（ＣＲ）／甲基丙烯酸甲酯（ＭＭＡ）接枝共聚物ＭＣＲ,并通过盐水凝胶、水洗、干燥制得块干胶。研究了氯丁二烯种子胶乳转化率、分子量调节剂用量、残留氯丁二烯含量以及接枝反应温度、ＣＲ／ＭＭＡ比例对接枝率的影响。对接枝共聚物的粘接性能进行了测试。     

CR-MMA乳液接枝共聚合

用乳液接枝法合成了氯丁橡胶（ＣＲ）－甲基丙烯酸甲酯（ＭＭＡ）接枝共聚物，并用喷雾干燥法制得了粉末状干胶。研究了氯丁二烯转化率、相对分子质量调节剂用量、残留氯丁二烯含量、接枝聚合温度、ＭＭＡ用量等对接枝共聚物溶解性和接枝率的影响。     

Effects of monomer impurities on the emulsion polymerization of chloroprene and properties of polychloroprene. III. Effect of divinylacetylene

The presence of small amounts of divinylacetylene in the monomer during the emulsion polymerization of chloroprene results in substantial increase of the molecular weight, gel formation, and in corresponding changes of physical and mechanical properties of vulcanizates. These changes appear at concentrations of divinylacetylene as low as 0.05% in chloroprene. The polymerization kinetics of chloroprene are influenced to a relatively small extent.     

模糊算法在氯丁二烯合成生产中的应用

氯丁橡胶生产是以氯丁二烯单体经过乳液聚合生产胶乳,而氯丁二烯则是以乙炔法制备。乙炔二聚得到的乙烯基乙炔(MVA)与氯化氢(HCl)合成生成氯丁二烯(CD),国内其合成塔反应运行基于人工操作,劳动强度大且稳定性差。在自动控制方面,设计了三维模糊(Fuzzy)控制器,与传统的PID串级控制相结合,实现了合成反应塔的优化控制。     

Effects of monomer impurities on the emulsion polymerization of chloroprene and properties of polychloroprene. II. Effect of monovinylacetylene

The free-radical emulsion polymerization of chloroprene containing monovinylacetylene in concentrations from 0% to 10% has been studied. It was found that in the presence of monovinylacetylene, a polymer with a great gel content, increased values of plasticity, and deteriorated physical and mechanical properties is formed. Monovinylacetylene has been proved to copolymerize with chloroprene under the conditions used. Acetylenic groups remain unchanged in the copolymer; they cause the crosslinking of polychloroprene macromolecules and corresponding changes in polymer properties. Copolymerization reactions of monovinylacetylene with chloroprene together with the crosslinking effect of monovinylacetylene cause a substantial lowering of the crystallization rate of polychloroprene.     

Effects of monomer impurities on the emulsion polymerization of chloroprene and properties of polychloroprene. IV. Effect of 1-chloro-1,3-butadiene

The influence of small amounts of 1-chloro-1,3-butadiene on the kinetics of the emulsion polymerization of 2-chloro-1,3-butadiene and on properties of the resulting polychloroprene has been studied. Some changes in the properties of the chloroprene polymers were observed at 1-chloro-1,3-butadiene concentrations in monomer as relatively high as about 5%. Polymer prepared in the presence of 5% 1-chloro-1,3-butadiene had decreased tensile strength, and also its crystallization tendency was somewhat lowered. At 1-chloro-1,3-butadiene concentrations near 1% or higher, the polychloroprene obtained had worsened thermo-oxidation stability which resulted in crosslinking during aging. The kinetics of emulsion polymerization of chloroprene are not influenced by 1-chloro-1,3-butadiene up to 5%.     

碘仿调节通用型氯丁橡胶的合成

以碘仿为相对分子质量调节剂,按照国内传统通用型氯丁橡胶(CR)(牌号为CR - 232)的生产配方及工艺条件,对氯丁二烯进行乳液聚合制得CR,考察了碘仿用量对CR综合性能及数均分子量、分子量分布的影响,并与传统调丁型CR - 232的性能加以对比.结果表明,当碘仿质量分数为0.38％,0.40％,0.42％时,除门尼焦...     

用冷冻凝聚工艺试生产通用型氯丁橡胶

介绍了用冷冻凝聚后处理工艺生产通用型氯丁橡胶ＣＲ－２３２、ＣＲ－３２２的配方设计及工业化试生产情况，其主要内容包括：乳化体系、终止剂体系、工艺参数、生产中异常现象分析及对策。     

Effects of monomer impurities on the emulsion polymerization of chloroprene and properties of polychloroprene. I. Effect of methyl vinyl ketone

The influences of small amounts (up to 2%) of methyl vinyl ketone in chloroprene on properties of polychloroprene and kinetics of the emulsion polymerization of chloroprene with mercaptans as regulators has been studied. Methyl vinyl ketone causes a substantial increase in molecular weight of polymer, which results in increased viscosity, gel formation, lowered plasticity of polymer, deterioration of processability, decreased tensile strength, and high modulus of vulcanizates. Methyl vinyl ketone interferes with the regulation of molecular weight by both primary and tertiary dodecylmercaptan; some differences are due to lower reactivity of tertiary dodecylmercaptan. In the presence of diisopropyl xanthogene disulfide as a molecular weight regulator the polychloroprene properties are not affected by methyl vinyl ketone. All changes in polymer properties have been proved to be caused by the addition reaction of dodecylmercaptan on methyl vinyl ketone, yielding 1-dodecylthiobutan-3-one. This compound itself has no influence on the polymerization of chloroprene. Methyl vinyl ketone has a marked promoting effect on polymerization rates, which accounts for its high reactivity and solubility in the water phase. A fast polymerization of methyl vinyl ketone takes place in the water phase of emulsion polymerization system simultaneously with the reaction of methyl vinyl ketone with dodecylmercaptan.