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研制出一种具有三维网络状结构的悬砂稠化剂,该稠化剂具有极强的悬砂能力,能与山砂以任意的配比形成复合浆体,并将山砂和水固结在一起而不脱水,极大地提高了砂浆防灭火效果;此外使砂不易堵管,大大地降低砂子对管道的磨损,并有利于管道长距离输送.并对悬砂稠化剂流变特性进行了研究,得到该稠化剂是具有剪切稀化特性的假塑性非牛顿流体;当悬砂稠化剂浓度为0.4%时,溶液具有最佳的流体力学特性;同时悬砂稠化剂的粘度与Ca2+离子浓度、Na+离子浓度、pH值、温度以及存放时间等因素密切相关.最后,用悬砂稠化剂进行了悬浮山砂的实验,制备出具有优良防灭火性能的稠化砂浆.图7,参8.
A thixotropic viscous agent with three-dimensional network structure was developed. The thickening agent has a strong ability of suspending sand, can form composite slurry with the sand sand in any ratio, and solidify the sand and water Together without dehydration, greatly improving mortar fire extinguishing effect; In addition, the sand is not easy to plug the tube, greatly reducing the abrasion of the sand on the pipeline, and is conducive to long-distance pipeline transportation. The viscoelastic thixotropic agent rheological properties The results show that the thickener is a pseudoplastic non-Newtonian fluid with shear-thinning property. When the concentration of suspending-sand thickener is 0.4%, the solution has the best hydrodynamic properties. At the same time, Viscosity is closely related to Ca2 + ion concentration, Na + ion concentration, pH value, temperature and storage time, etc. Finally, the experiment of suspending the sands by suspending sands thickening agent was carried out to prepare thickified mortar with excellent fire extinguishing performance. Figure 7, reference 8.