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- Fluoro blowing agents include HCFC, HFC, perfluoroparaffin (PFA) and fluoroether (HFE) four races. 含氟发泡剂有HCFC、HFC、全氟烷烃(PFA)、氟代醚(HFE)四类。
- DME has shortest lifetime in atmosphere and lowest price than above any other fluoro blowing agents. DME在大气层中的寿命比上述任何一种含氟发泡剂都短,并且成本最低。
- If blowing agents is added in powder compacts,a subsequent heat treatment can produce cellular aluminum in the solid state. 类似的方法还包括粉浆烧结法、散粉烧结法等。
- First, the granular Levapren synthetic rubber is mixed with fillers, vulcanization reagents and blowing agents and is then kneaded and rolled. 首先,颗粒状的乙华平合成橡胶与填充料、硫化剂和发泡剂混合在一起,然后经过揉碾塑形。
- The influences of chemical blowing agent AC and cross - link agent DCP on LDPE/ EPDM foam forming technology were discussed in detail. 重点讨论了发泡剂AC、交联剂DCP对低密度聚乙烯/三元乙丙橡胶(LDPE/EPDM)发泡工艺的影响。
- Azodicarbonamide blowing agent is improved by the adding of dicyandiamide, zinc oxide and zinc peroxide. 通过添加双氰胺、氧化锌、过氧化锌等化学品,对偶氮二甲酰胺发泡剂进行改性。
- The effect of certain types or contents of stabilizers,modifies and blowing agents on extrudate quality density,surface,and cellular structure are described. 讨论了稳定剂品种、改性剂品种和发泡剂用量对制品密度、泡孔结构以及外观表面的影响。
- Besides polyether blend, the cooperativity of polymeric MDI and blowing agent is a key factor to PURF's manufacture. 除组合聚醚的因素外,发泡剂与聚合MDI的配伍性和反应的协同性是影响硬质聚氨酯泡沫塑料制造的重要因素。
- In this paper, the recent research developments of blowing agent applied for foamed aluminum are investigated. 综述了国内外发泡剂的种类和特点以及在泡沫铝中应用的最新研究进展。
- The results showed that density and hardness of NR foams decreased with increasing amount of blowing agent H. 结果表明,随着发泡剂H用量的增加,NR发泡材料的密度与硬度均降低;
- The foamed PVC/wood-flour composite(WPC) was prepared from PVC and rice husk powder with blowing agent. 采用PVC树脂和木粉加入发泡剂制得PVC/木粉发泡复合材料。
- Two components of the polyether polyurethane systems with water as blowing agent are prepared. 制得了以水作发泡剂的聚醚型聚氨酯鞋底原液。
- Blowing agent of F11can be substituted by pentane,which is no harm to the environment. 发泡剂F11可用符合环保要求的戊烷完全替代;
- H blowing agent(blowing agent h,DPT,DNPT) is mainly used for rubber products and PVC plastic products as the vesicant. 发泡剂H广泛应用于橡胶发泡,例如:天然胶、丁苯胶、丁腈橡胶,不变色,无污染。
- Decomposition and blowing characteristic of the exothermic blowing agent AC and endo-exothermic compound blowing agents DDL-105 and DDL-107 were analyzed. 分析了纯放热性发泡剂AC与吸 -放热复合发泡剂DDL 10 5、DDL 10 7的分解特性和发泡特性。
- When the content of glass fiber,blowing agent and water-gypsum ratio are separately 3%,0.4% and 0.7,the performace of the mate-rial reaches optimum. 当玻璃纤维含量为3%25、发泡剂含量为0.;4%25、水灰比为0
- A blowing agent, such as the polyester polyol used in this experiment, forms gas bubbles in the reaction as it polymerizes. 一个吹的代理, 譬如聚酯多羟基化合物被使用在这个实验, 形成气泡在反应当它聚合。
- The main materials to such as isocyanate, polyol, blowing agent and foam stabilizer et al, prepare rigid polyurethane foam are introduced. 摘要介绍了合成硬质聚氨酯泡沫塑料的主要原料,包括主体成分和发泡剂、泡沫稳定剂等;
- This paper studied the influence of blowing agent dosage on the main reactant of PUF, and the chemorheology in reaction process. 研究了发泡剂用量对聚氨酯泡沫主反应原料粘度的影响,以及反应过程中的化学流变性能。
- The selection of blowing agent and the method of modifying fire retardance of rigid polyurethane foams were briefly introduced. 简要介绍硬质聚氨酯泡沫塑料的发泡剂选择和改进阻燃性的方法。