新产品

水乳合脂粘结剂国内铸造行业目前广泛使用的合脂粘结剂是以合成脂肪酸精馏釜底残渣为主要原料，用煤油或溶剂油为溶剂，稀释到一定粘度的调和物。     

正交试验合成高强度的铸造用木素混合液的TD_2粘结剂

采用正交试验设计法进行实验，得到缩聚改性最佳条件，合成出性能比国标ＧＢ１２２１６合脂粘结剂更优越的铸造粘结剂。     

合脂和改性浮油沥青粘结剂的性能研究

介绍了合脂和改性浮油沥青作为铸造用的粘结剂的性能比较，认为改性浮油沥青某些性能优于合脂，可以成为新一代的型芯砂粘结剂。     

GAP与GAP推进剂的研究进展

综述了含能粘结剂聚叠氮缩水甘油醚的各种合成方法及其物化性能，热分解特性研究，评估了ＧＡＰ的安全性，介绍了国外对以ＧＡＰ为粘结剂的各种ＧＡＰ推进剂的研究进展。     

高性能植物油沥青粘结剂

本文采用蒸馏厂的下脚料——各种植物油沥青(棉油沥青、豆油沥青、混合油沥青)为主要原料,用聚酯废弃物为改性剂,经裂解、酯化等工艺制备成3种铸造用植物油沥青粘结剂(MB)。同时采用红外光谱手段对该3种粘结剂的基团结构,性能与固化机理进行探索,并与合脂粘结剂比较。结果表明:改性粘结剂的主要成分与合脂粘结剂大致相同,且具有更高的干拉强度、更慢的发气速度等优异性能,达到甚至超过合脂粘结剂的性能,可用于Ⅰ级型芯砂的粘结,而且成本低廉。     

羟基磷灰石的制备、X-ray衍射表征和成型工艺探讨

以沉淀法合成羟基磷灰石（简称HAP）粉末，对生坯进行单向干压成型，设计正交实验，探讨了各主要因素（烧结温度、烧结保温时间和粘结剂）对成型过程的影响。实验结果可知HAP粉末成型的最佳条件为：烧结温度1100℃．烧结保温时间3小时，粘结剂为聚乙烯醇。     

用分散聚合物粉料改善瓷砖粘绔剂性能

传统的瓷砖粘结固定方法主要是应用玻特兰水泥砂浆，即首先在瓷砖的背面涂复10到25mm厚的水泥砂浆，然后将其按压在工作位置，这就是人们称之的“厚床”法。这种方法逐渐被“薄床”法取代，它省时省料，现代的新型瓷砖粘结剂需用开槽的泥刀在平整、光滑待铺贴面涂抹成薄层，然后再贴上瓷砖。这种新型的粘结剂由于粘结层较薄，对性能要求较为严格，为保证瓷砖粘结的稳定性和耐久性，使用的粘结剂和“厚床”法相比有许多更高的质量要求。可分散的聚合物粉料用来提高粘结剂的粘结能力和弹性，而粘结剂的施工性能则取决于使用可分散聚合物的种类。     

氟树脂乳液复层涂料的研制

采用合成氟树脂乳液为粘结剂，通过不同种类、粒径的体质颜料合理搭配以及控制体质颜料与基料配比，并选择合适的助剂，制成了性能优异的氟树脂乳液复层建筑涂料。其耐沾污率为14．5％，耐人工老化性通过1000h。     

聚氮酯粘结剂的合成与粘结体吸湿性研究

以MDI与聚醚为原料，乙二醇为固化剂，在催化剂的作用下合成聚氨酯粘结剂．并进行了红外表征，测定了异氰酸根含量与粘结硝酸铵后的吸水性能，同时考察了反应温度、反应时间、-NCO与-OH物质的量之比以及催化剂用量对粘结体吸湿性的影响。正交实验结果表明：当-NCO与-OH物质的量比为1．5：1，反应温度为70％，反应时间为1．5h，催化剂用量为羟基含量的0．1％时，粘结体耐水性最佳，粘结硝酸铵达80％。     

胶粘剂信息

胶粘剂信息国内信息铸造芯砂ＵＳＥ粘结剂该粘接剂主要用于代替桐油或合脂作芯砂粘结，其特点为：１该粘结剂芯砂干压强度可在１～ＺＭＰａ、湿压强度可在０．ｏｆ～０．０２ＭＰａ范围内调节，透气良好，工艺性能稳定。２粘结剂发气量较小，芯砂比桐油砂低２７％～４０％...     

Development and study of the compositions of unshaped fireclay-based heat-insulating refractories and a technology for making them

Results are presented from a study of the compositions of foams for making heat-insulating refractory products with the use of a slag-alkali binder. It is shown that use of the given binder can yield materials with an ultimate compressive strength of up to 20 – 22 MPa. These materials can be used as heat-insulating materials and as structural materials.     

Investigation of refractory concrete materials with alumosilicate composition by petrographic methods

Petrographic methods are used to investigate concrete alumosilicate materials, produced by the Semiluki Refractory Works, on fireclay fill and an integral binder based on high-alumina cement. The microscopic investigations showed that as the result of heat treatment of concrete up to 380°C degradation processes are essentially completed in the binding substance, and formation of a glass phase, mullitization, and binder penetration into the fireclay fill are observed in samples calcined at 1000°C. After calcination the phase composition of the binder obtained from synthetic materials is similar to the composition of the clay binder used in conventional fireclay calcination materials.     

复合粘结剂炭素材料性能研究

用自制凝胶一沥青作复合粘结剂制备了炭素材料。通过测定不同配方、焙烧温度下试样的物理性能,认为9~#配方试样具有较好的导电性能和较高的抗压强度,沥青用量只有20%,明显低于传统炭素材料沥青用量。结果表明,凝胶一沥青复合粘结剂与石油焦粘结性能好,改变了传统的热压成型工艺。     

浅析玻璃纤维湿法薄毡生产线粘结剂循环系统

介绍了玻璃纤维湿法薄毡作为现在复合材料行业发展最快的材料之一,广泛应用于屋面防水基材、电路板基材、地毯基材、蓄电池隔板毡的情况,并着重介绍了玻璃纤维湿法薄毡生产工艺中的粘结剂循环系统,分析了粘结剂泵的选型,粘结剂循环罐的液位控制,粘结剂的pH值控制系统及粘结剂的抽吸分离系统。     

Possibility of producing lightweight,heat insulating bricks from pumice and H3PO4- or NH4NO3-hardened molasses binder

This investigation is based on the production of lightweight, heat-insulating, water-resistant or water-repellent materials from lightweight aggregates, such as pumice and/or expanded perlite, without using cement or plaster as a binder. The results of this investigation reveal that a H₃PO₄- or NH₄NO₃-hardened molasses binder with the addition of 2.5% borax could be an alternative binder for the production of lightweight, heat-insulating materials with moderate tensile strength. When these bricks were exposed to temperatures up to 825 °C, they did not lose their strength but, rather gained strength. Therefore, molasses binder could be an alternative to cement or plaster binder for construction and building materials with specific properties.     

二次颗粒人造石墨负极材料的制备及储锂性能

以煤系针状焦生焦为原料、自制高性能煤沥青为黏结剂,对针状焦生焦进行造粒加工处理,制备了具有高能量密度和倍率性能的二次颗粒人造石墨负极材料,并研究了黏结剂沥青添加量分别为5%(质量分数,下同),8%和12%时二次颗粒人造石墨负极材料的理化指标和电化学性能。结果表明:当黏结剂沥青添加量为8%时,造粒工艺效果最为理想,形成的二次颗粒人造石墨负极材料大小较均匀,振实密度为1.10 g/cm³,在0.1 C电流密度下首次充电比容量为345.7 mAh/g,首次库伦效率为95.6%,高于其他黏结剂量下制备的二次颗粒人造石墨负极材料的首次充电比容量和首次库伦效率,在倍率性能测试方面也展现出优异的高倍率充放电能力。     

Influence of binder on the porosity of carbon materials

The formation of porosity in carbon materials is considered. In hot-pressed materials with medium-sized grains, porosity is formed by the destruction of binder when blanks are fired to 600°C. In cold-pressed small-grain materials, shrinkage and binder destruction are responsible for the porosity. Up to 600°C, the yield of volatiles and shrinkage compensate the development of porosity, which mainly appears above 600°C. Using various binders, we may obtain carbon materials with small or large porosity. In addition, the binder affects the pore size and distribution. Methods of producing carbon materials with elevated porosity are considered, including the use of filler from a single size fraction and the use of pore-forming agents, Highly porous carbon materials are also produced from binder, with no filler. The raw materials employed are synthetic tars or mesophase pitch. The properties of carbon materials with different pore content are compared.     

偏硅酸盐结合碱性无碳干式振动料的性能研究

以中档镁砂和电熔镁砂为主要原料,采用偏硅酸盐取代酚醛树脂为结合剂,并引入一定量的中温和低温增强剂,重点研究了结合剂的选择、颗粒级配的优化及外加物的引入等因素对中间包碱性无碳干式振动料性能的影响,并探讨偏硅酸盐结合碱性无碳干式振动料的结合机理。研究结果表明,采用偏硅酸盐作结合剂时,干式振动料可达到较大的强度;颗粒级配以q=0.48,临界粒度为5或3 mm,细粉量为10%～20%(w)为宜;引入一定数量的外加物与偏硅酸盐"熔融"复合,可以明显提高中间包干式振动料的强度,且抗侵蚀性能优良;随着温度升高,偏硅酸盐结合干式振动料的结合方式按粘着结合→化学结合→陶瓷结合转变。     

Study and development of compositions of compounds for the manufacture of cordierite materials

It is shown that it is possible to obtain a binder suspension based on synthetic materials in the system Al₂O₃–MgO–SiO₂O. The basic properties of the suspensions and the synthetic materials thus obtained on the basis of these materials are studied. The optimal methods of molding cordierite materials as a function of the type of binder employed are established.     

新型陶瓷坯体增强剂的应用研究

主要研究了自制的以木质素为主要原料的陶瓷坯体增强剂的应用。考察了不同浓度、不同原料的增强剂对泥浆流动性,生坯强度,以及烧成后瓷砖黑心现象的影响。结果表明,自制木质素基的增强剂,引入到建筑陶瓷坯体配方中,不仅可以明显提高生坯强度,而且具有一定的解凝效果,对泥浆流动性影响不大。