第十次聚氨酯泡沫塑料交流会征文启事

中国聚氨酯工业协会泡沫塑料专业委员会和全国合成树脂及塑料工业信息总站聚氨酯信息站，将联合于2007年下半年（具体时间、地点另定）召开第十次聚氨酯泡沫塑料生产、科研、技术交流会。     

聚氨酯

聚氨酯聚氨基甲酸酯（简称聚氨酯）是主链上含有重复氨基甲酸酯──ＮＨ──Ｃ──Ｏ──基团的高分子化合物，英文名称为Ｐｏｌｙｕｒｅｔｈａｎｅ，简称ＰＵ。聚氨酯具有优良的耐磨性、耐低温性、耐油性和耐臭氧等性能，从５０年代以来发展很快，广泛用作泡沫塑料、弹性...     

聚氨酯泡沫塑料的着色

本文介绍了塑料着色剂的发展概况、发色机理及聚氨酯泡沫塑料的着色,并根据我国聚氨酯工业的发展情况,提出研究开发聚氨酯泡沫塑料用的着色剂及着色技术的建议。     

成果转让

成果转让无氟硬质聚氨酯泡沫塑料江苏省化工研究所成功地开发出无氟硬质聚氨酯泡沫塑料用聚醚多元醇的替代含氟产品技术路线。该聚醚多元醇具有粘度低、耐温性能优良，泡沫强度高、尺寸稳定性能良好，适用于制造全水发泡体系，烷烃类发泡体系和ＨＣＦＣ－１４１６体系的无...     

中国聚氨酯工业协会第八次年会论文题录(一)

中国聚氨酯工业协会第In次年会于1996年10月16日至18日在天津召开。会上共发表T63篇论文。现将论文题名加以整理，供读者参考。两年来聚氨酯胶粘剂进展概况／翁汉元（化工部黎明化工研究院）．－1～5近两年聚氨酯泡沫塑料发展概况／方秀华（江苏省化工研究所）．－6～10聚醚多无酵工业的“八五”回顾及“九五”展望／刘德源（锦西化工总厂）．一11～12国内外聚氨酯弹性作发展近况／郁为民，它涛，张旭琴，黄海梅，李汾（山西省化工研究所）．一13～16累自酯时车想发展概况／刘泽陆（化工部常州涂料化工研究院）．－17～19累自酯涂料现状与…     

高效节能聚氨酯泡沫塑料在外墙保温中的应用

综述了建筑节能概况及其与外墙保温技术的关系和硬质聚氨酯泡沫塑料在建筑外墙保温中的应用。外墙保温的隔热节能效果明显,其保温效果仍优于内墙保温所产生的效果。硬质聚氨酯泡沫塑料一般都是闭孔结构,具有施工方便、强度高、质量轻等特点。硬质聚氨酯泡沫塑料作为外墙保温材料,不仅具有良好的保温性能,而且防水性能好。硬质聚氨酯泡沫塑料的性价比较高,维护成本较低。加强聚氨酯泡沫塑料在外墙保温中的研究是未来几年的发展方向。     

巴斯夫公司塑料产品发展概况

巴斯夫（BASF）公司是世界上最大的塑料制造商之一。具有很广泛的产品范围，BASF公司的塑料产品包括从通用树脂到工程塑料及高性能的材料，从热塑性塑料到泡沫塑料和聚氨酯，简要地介绍了BASF公司的产品及其发展概况。     

改性条件对阻燃型硬质聚氨酯泡沫塑料性能的影响

选择阻燃剂三聚氰胺和甲基磷酸二甲酯（DMMP）对硬质聚氨酯泡沫塑料进行阻燃改性,研究了异氰酸酯指数、水、三聚氰胺以及DMMP添加量对硬质聚氨酯泡沫塑料阻燃性能和拉伸强度的影响主次顺序。结果表明,添加三聚氰胺和DMMP可以提高硬质聚氨酯泡沫塑料的阻燃性能,当三聚氰胺的添加量为25份、DMMP的添加量为25份、异氰酸酯指数为1.15、水添加量为1.5份时,硬质聚氨酯泡沫塑料的综合性能最佳。     

聚氨酯硬质泡沫塑料在建筑业上的应用

本文叙述聚氨酯硬质泡沫塑料的发展概况、生产技术及其在建筑业上的应用。阐明聚氨酯硬泡在建筑领域有着广阔的市场。     

软质聚氨酯泡沫塑料填料添加技术

软质聚氨酯泡沫塑料填料添加技术王任明（江西省化学工业研究所南昌３３００２９）１．前言加入填料是提高软质泡沫塑料（俗称海绵）压缩负荷性能的方法之一。在市场竞争日益加剧的今天，许多厂家为了提高海绵的刚化效应，降低成本、纷纷添加各种填料、然而，也正是由于使...     

提高聚氨酯耐紫外老化性的研究进展

介绍了聚氨酯材料的光老化机理,综述了采用紫外线吸收剂(UV-P,UV-328,UV-B83等)和抗氧剂(BHT,抗氧剂1135,抗氧剂PUR 67,抗氧剂PUR68等)提高聚氨酯耐紫外光老化性的研究进展。研究表明,将几种稳定剂组合使用可使聚氨酯获得最佳的稳定效果。     

我国聚氨酯泡沫塑料的发展近况

详细阐述我国近几年聚氨酯(PUR)泡沫塑料的生产情况,对企业生产规模、生产技术及产品种类均进行了探讨,并对PUR泡沫塑料的市场需求情况及各行业所用泡沫塑料比例进行了分析;同时还详尽地介绍了目前我国PUR泡沫塑料的技术进展,系统说明了发泡剂应用研究在当前的重要性和紧迫性;指出了今后PUR泡沫塑料的发展方向。     

Preparation and characterization of polyurethane/silica aerogel nanocomposite materials

In this investigation, silica aerogel (SA)/Rigid Polyurethane (PUR) foam composites and silica aerogel/Polyurethane (PU) composites were prepared by dry mixing of granular and grinded silica aerogels with polyol part. They were then combined with diisocyanate part. Three different types of PUR foams and an elastomeric coating grade of PU were studied as well. Results show that thermal conductivity of foams did not decrease by adding silica aerogel. It even increased for some grades which is assumed to be due to the change in cell configuration of these foams. It was also found that sound insulation performance of these cellular composites did not improve significantly. Unlike foam composites, addition of silica aerogel into elastomeric PU improved its thermal and acoustic insulation properties. Because of the more promising properties of elastomeric PU composites, further examinations including measurements of compression strength and water contact angle of silica aerogel/PU composites were also taken. Final results showed a significant improvement in general properties of PU coatings by adding little amounts of silica aerogel (1–4 wt %). © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 44521.     

硬质聚氨酯灌封料的研制

以聚醚多元醇和异氰酸酯为主要原材料，制备了硬质聚氨酯灌封料。讨论了异氰酸根含量、催化剂用量，以及树脂和固化剂配比对产品性能的影响。对所研制的聚氨酯灌封料理化性能和工艺性能同进口料PU200进行了比较。结果表明，所研制的聚氨酯灌封料性能基本达到PU200的水平。     

浅谈我国聚氨酯弹性体发展动态

介绍聚氨酯弹性体的特性。指出我国将成为全球聚氨酯(PU)弹性体的消费和产能大国,其中氨纶、热塑性聚氨酯(TPU)弹性体、PU鞋底、PU合成革是我国聚氨酯弹性体未来主导产品,纺织工业和轻工业是拉动我国今后PU弹性体快速发展的主要产业。     

中国聚氨酯产业的竞争态势及发展对策

在对大量聚氨酯产业资料进行详实对比的基础上,分析世界聚氨酯产业的竞争与发展状况,特别是几大聚氨酯跨国公司的竞争优势与战略调整,阐述中国聚氨酯产业的竞争与发展态势,在此基础上给出了中国聚氨酯产业发展对策。     

新型低成本耐老化聚氨酯弹性体的研究

以酯基间有2~6个碳原子的聚酯二元醇（CMA-24、CMA-44、CMA-254、CMA-66）、甲苯二异氰酸酯和扩链剂3,5-二甲硫基甲苯二胺（DMTDA）为原材料,通过预聚体法制备了一种耐水解聚酯型聚氨酯弹性体。探讨了水解稳定剂、防酶剂、紫外线吸收剂和抗氧剂等助剂对聚氨酯弹性体性能的影响,测定了耐水解聚酯型聚氨酯弹性体的耐湿热老化和耐海水性能。结果表明,通过添加适量的水解稳定剂、防霉剂、紫外线吸收剂和抗氧剂可大幅度提高聚酯型聚氨酯弹性体的耐湿热老化和耐紫外线老化性能,特别是耐海水性能较传统的聚酯型聚氨酯弹性体提高了5倍以上。     

Chemical recycling of reinforced polyurethane from the automotive industry

R-RIM PU (reinforced-reaction injection molding polyurethanes) from the automotive industry (production scrap and parts at the end of their life cycle) can be recycled for the production of new RIM PU by a chemical process. Among the various possible chemical processes (hydrolysis, alcoholysis, aminolysis, and pyrolysis), we have examined glycolysis, a particular form of alcoholysis, for the purpose of obtaining a mixture of oligomers sufficiently similar to a polyol to be used in the production of new R-RIM PU. Glycolysis with dipropylene glycol (DPG) of R-RIM PU forms a monophasic product that could be used in the preparation of new, highly crosslinked polymers, similar to those used in the preparation of rigid thermal insulation foams. The same product, because of its high hydroxyl number, cannot be directly re-used in the production of new RIM PU. Partial substitution of free DPG in the glycolysis product with a triol having high molecular weight forms a homogeneous mixture suitable for production of new RIM PU. This final product has been used in the original R-RIM application introducing an appropriate optimization of formulation. In comparison with RIM PU obtained from only virgin materials, the loss in properties of molded parts based on even high amounts of regenerated polyol was only marginal.     

聚氨酯合成革用纤维及化学品

介绍了我国聚氨酯合成革用纤维及化学品的研究现状,简单阐述了生产过程控制中调节纤维与聚氨酯性能的主要助剂的成分、作用和应用方法,重点探讨了聚氨酯合成革用纤维和聚氨酯的类型、作用机理以及在聚氨酯合成革生产中应用的特点。针对我国聚氨酯合成革行业存在的主要问题,指出了今后聚氨酯合成革工业的发展方向。     

Recycling of rigid polyurethane foam: Micro-milled powder used as active filler in polyurethane adhesives

Rigid polyurethane (PUR) foams are widely used as heat insulation material in construction industry or for electronic appliances manufacturing. After finishing their life-time, it is necessary to eliminate foam wastes. The aim of this study was to prepare a pair of industrial PUR adhesives of medium viscosity containing recycled rigid PUR foam. Three methods of milling were tested: knife-milling, two-roll milling, and ball-milling. Only two-roll milling gives the PUR micro-powder usable for following adhesives modification. The micro-powder was used as passive filler in PUR adhesives and potential reactivity for polyol pack replacement was studied. Hydroxyl and amine numbers were determined in mixture with virgin polyol. One-component PUR prepolymer adhesive was prepared using various dosages of the micro powder and the tensile strength of bound wood was measured. As additional parameters, also free film adhesive mechanical parameters were tested and particle size distribution of the micro powder was analyzed. Two adhesive formulations were prepared for independent evaluation of the micro powder reactivity. The results showed growing of the mechanical strength of wood bonding with growing dosage of the micro powder.