聚氨酯泡沫塑料高效节能外墙保温技术

阐述了聚氨酯泡沫塑料的高效节能外墙保温技术及喷涂聚氨酯硬泡外墙保温系统、浇注聚氨酯硬泡外墙保温系统、粘贴聚氨酯硬泡外墙保温系统、外挂聚氨酯硬泡外墙保温系统和聚氨酯硬泡复合板外墙外保温系统的施工工艺及特点。     

连续板材用聚氨酯硬泡泡沫生长速率研究

聚氨酯硬泡保温板具有优异的保温效果,且施工简单,被广泛应用。通过Foamat曲线仪研究催化剂、发泡剂、聚醚等对连续板材用聚氨酯硬泡泡沫生长速率的影响,探讨了机理,优化了连续板材用聚氨酯硬泡的配方。     

聚氨酯硬泡防水保温屋面施工质量的控制

本文通过聚氨酯防水保温材料的主要性能、聚氨酯硬泡合成原理及主要材料组成等的论述,指出了聚氨酯硬泡的喷涂成型工艺,最后指出了聚氨酯硬泡在防水保温屋面应用中,应加强施工质量的检查。     

加强聚氨酯硬泡防水保温屋面施工质量的检查

本文通过聚氨酯防水保温材料的主要性能、聚氨酯硬泡合成原理及主要材料组成等的论述,指出了聚氨酯硬泡的喷涂成型工艺,最后指出了聚氨酯硬泡在防水保温屋面应用中,应加强施工质量的检查。     

海底用喷涂聚氨酯硬泡保温配重管的节点补口技术

针对海洋油气输送用聚氨酯硬泡喷涂保温配重管铺设过程中节点补口进行改进研究,介绍了一种聚氨酯硬泡喷涂保温配重管节点结构和施工工艺。主要采用聚氨酯硬泡保温半瓦和浇注聚氨酯弹性体进行节点补口,节点补口性能测试验证效果良好,满足海底油气管道铺设要求。     

聚氨酯硬泡外墙隔热保温技术

本文阐述了喷涂聚氨酯硬泡外墙保温系统,浇注聚氨酯硬泡外墙保温系统,粘贴聚氨酯硬泡外墙保温系统,外挂聚氨酯硬泡外墙保温系统的施工工艺及特点。     

屋面硬泡聚氨酯喷涂施工关键技术控制

聚氨酯（PU）保温材料是由异氰酸酯与多元醇反应制成的一种具有氨基甲酸酯链段重复结构单元的聚合物。由于其保温性能良好,防水性能优异,广泛应用于外墙保温、屋顶保温及冷库、粮库、档案室、管道、门窗口等特殊部位的保温。聚氨酯硬泡在国外被大量应用于屋面和墙体保温,主要应用形式有复合板材、现场喷涂两类。英国早在上世纪60年代就已将聚氨酯硬泡应用于墙体和屋面。美国1996年建筑用硬泡占硬泡总耗用量的49％。     

聚氨酯泡沫塑料讲座(连载)

第六讲聚氨酯硬质泡沫塑料聚氨酯石蜡泡由于具有绝热效果好,比强度大,电学性能佳,耐化学试剂及隔音效果优越等特点,已广泛用作保温,保冷材料,结构材料和“合成木材”等。聚氨酯硬泡的另一个特点是可以根据不同技术部门的使用要求,通过改变配方,调整原料规格及不同的施工工艺就能分别制成不同密度、硬度、耐热、耐燃及亲水亲油度等的性能的硬泡制品;还可制成增强复合材料,以代替木材、水泥以及钢材制品。从当今世界聚氨酯泡沫塑料消费结构上分析,硬泡的应用比例在逐年增加。世界能     

纤维增强发泡混凝土复合保温板的研究及应用

介绍纤维增强水泥聚苯再生颗粒发泡混凝土复合硬泡聚氨酯保温体系的材料性能、技术指标和施工方法。该技术将发泡混凝土和硬泡聚氨酯结合起来,保温和抗裂性能得到很大提高,在夏热冬冷地区的推广应用具有一定的经济效益和社会效益。     

自主创新立潮头 海纳百川创一流——访南京红宝丽股份有限公司

聚氨酯硬泡是一种新型隔热、保温、防水材料,广泛应用于冰箱、冰柜等白色家电、冷藏集装箱、冷藏库、建筑保温、石油管道等领域。随着我国建筑节能工作的推进、白色家电产业的发展等,聚氨酯硬泡的市场潜力极大。本期《聚氨酯》将要为您介绍的就是聚氨酯硬泡组合聚醚生产商,国内聚氨酯硬泡组合聚醚的领军企业——南京红宝丽股份有限公司。     

高温隔热涂料的保温隔热性能改进探讨

针对超过800℃条件下使用的高温隔热涂料,从涂料的填料入手并利用聚氨酯泡沫塑料作辅助隔热层,使其保温隔热性能得到改进和提高,在一定条件下满足因产品升级而对保温隔热性能提高的要求,通过中空填料的运用和高温隔热涂料+聚氨酯泡沫塑料的复合隔热涂层,提高了耐高温隔热涂料的保温隔热性能,延长保温隔热涂料的有效隔热时间。     

浅谈聚氨酯硬泡在建筑业上的应用

简要介绍了硬质聚氨酯泡沫塑料的特点及其在建筑业的应用情况。硬质聚氨酯泡沫塑料在建筑业主要用作各种隔热材料。列举了其在屋顶、墙体、楼体、活动房、冷库和预制绝热管道等方面的应用。     

珍珠岩填充硬质聚氨酯泡沫保温板的制备与性能

以珍珠岩为填料制备了聚醚型硬质聚氨酯泡沫材料(RPUF),研究了珍珠岩的填充量,珍珠岩粒径对RPUF板材的机械性能及导热性能的影响,确定了最佳的填料比例,珍珠岩的最佳填充量可达40%。通过加入阻燃剂TCPP和DMMP等,提高了珍珠岩填充RPUF保温板的阻燃性能,材料的最佳氧指数可达到34.1。     

聚氨酯泡沫塑料在液化气体保冷领域的应用

对液化气体保冷材料的开发应用情况进行了介绍，论述了聚氨酯泡沫塑料的性能，着重介绍了影响硬质聚氨酯泡沫塑料导热系数的一些因素，以及聚氨酯泡沫塑料在保冷储运领域的应用，对其保冷结构、施工工艺及在实际应用中的体会进行了简单的探讨，对我国液化天然气的保冷技术提出了初步看法。     

蒸馏水含量对三明治结构硬质聚氨酯泡沫性能的影响

采用异氰酸酯、聚酯多元醇、发泡剂（水）等原料通过一体发泡成型技术制备出一种新型的三明治泡沫夹心复合材料。利用热重分析、扫描电子显微镜等对不同水含量（质量分数分别为0、0.5 %和1.0 %）的硬质聚氨酯泡沫材料的泡孔直径、密度、热导率、压缩性能、三点弯曲和热力学性能等做了研究,进而确定提高硬质聚氨酯性能的最佳工艺。结果表明,随着水含量的增加,硬质聚氨酯泡沫材料泡孔直径增大,密度变小,热导率降低,保温性能提高,而压缩性能和三点弯曲却呈下降趋势;综合考虑硬质聚氨酯泡沫材料泡孔结构和良好的保温隔热及弯曲等力学性能,其最佳含水量为0.5 %。     

Mechanical,acoustic, and thermal performances of shear thickening fluid–filled rigid polyurethane foam composites: Effects of content of shear thickening fluid and particle size of silica

Shear thickening fluid (STF) features a rheological property, and rigid polyurethane (PU) foams feature low thermal conductivity and excellent acoustic insulation. In this study, an STF/PU rigid foam composite sandwich structure was designed using different contents (0, 0.5, 1, or 1.5 wt %) of STF that contained 14 nm, 40 nm, or 75 nm silicon dioxide (SiO₂). The effects of STF content and silica size on the cell structure, mechanical performance, acoustic absorption, and thermal performance of the STF/PU foam were explored. The test results show that STF/PU foam exhibited three characteristic acoustic absorption peaks, and the maximum acoustic absorption coefficient reached 0.841. STF addition increased compression, bending strength, and maximum acoustic coefficient, as well as initial mass loss temperature. STF-filled PU foam composites containing 14 nm and 40 nm SiO₂ had a mild rise in thermal insulation. The rigid STF/PU foam composites with a cell structure had the maximum thermal conductivity of 0.22 W m⁻¹ K⁻¹ and sound absorption coefficient of 0.841, which confirm that they are a good candidate for sound-absorbing energy conservation materials. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47359.     

A study of composite foams for diving suits subjected to high hydrostatic pressure

In order to obtain foams possessing flexibility and at the same time heat insulation under high hydrostatic pressure, composite foams with spherical rigid foams filled in flexible rubber foam at certain intervals were prepared and their thermal conductivity and flexural rigidity were studied. The following points were found: (1) With a unit model having a spherical rigid foam in the middle, the thermal conduction of a composite foam was analyzed under the conditions of steady one-dimensional heat flow. Theoretical equations giving overall coefficients of heat transmission under atmospheric and hydrostatic pressures were obtained, and the adequacy of these theoretical equations was confirmed by the measurement of overall coefficients of heat transmission of composite foams in an apparatus so constructed as to allow heat conduction experiments under pressures ranging from atmospheric to the hydrostatic pressure corresponding to 100-m depth in water. (2) The effect of the filled spherical rigid foams on heat insulation is notable under hydrostatic pressures corresponding to a 20-m depth or more in water. Under the hydrostatic pressure corresponding to a 100-m depth in water, the coefficient of heat insulation of the most closely filled composite foam used in the experiment was approximately 35% larger than that of the unfilled foam, while the theoretical most closely filled composite foam gives an approximately 110% increase. (3) Under the hydrostatic pressure corresponding to a 100-m depth in water, the flexural rigidity of the most closely filled composite foam used in the experiment was approximately one half that of an unfilled foam of the same heat insulating property.     

浅谈聚氨酯软泡生产过程中的安全防护

聚氨酯软质泡沫因具有质轻、绝缘、隔音、保温、耐油、透气、无毒等优异的综合性能而得到广泛应用,但其极限氧指数很低,属易燃品,发生火灾后很难被控制。一旦发生火灾,不仅公司遭受很大损失,还会对环境造成很大的污染。聚氨酯软质泡沫在燃烧中会产生浓烟,对人的健康产生很大的影响。因此防范火灾是聚氨酯软质泡沫生产过程中的重点。     

酚醛泡沫的发展现状及应用

酚醛泡沫是一种新兴的保温绝热材料,被称为第三代新兴保温材料,是目前泡沫保温材料中发展最快的品种,被称为＂保温之王＂。由于其轻质、隔热、阻燃等优点而具有十分广阔的应用前景。本文论述了酚醛泡沫的发展概况,介绍了酚醛泡沫的制备,性能和应用。     

硬质聚氨醋泡沫塑料研究进展

介绍了我国硬质聚氨酷泡沫塑料的生产现状、成型工艺及其在律筑领域的应用情况,重点介绍了其在律筑墙体保温中的应用技术,位括外墙内保温发泡施工技术、墙体夹层发泡保温技术、外墙外保温技术,总结了外墙保温技术的几种工艺路线。并对硬质聚氨酷泡沫塑料的发展补势讲行了预测