It would be an important addition to the library of all sealant chemists and engineers. Part of the polymer science and technology book series pols, volume 29. The silylated polyurethane polymer includes a polyurethane prepoly mer having between greater than about 50 to about 95% of nco groups terminated with silane capping agents. Curing of silylated polyurethane with bf3monoethylamine. Although it does not provide ultimate detail such as explicit information typically in patents, the book has a flow and continuity that allows readers to find all the background necessary to understand any other more detailed polyurethane information found. The chapter details the different methods of polyurethane synthesis. Our sealants combine the technology of polyurethane and silylated polyurethanes. March 31, 2017 momentive performance materials inc. It covers the chemistry and technology of oligopolyol fabrication, the characteristics of the various oligopolyol families and the effects of the oligopolyol structure on the properties of the resulting polyurethane. Study of properties of onecomponent moisturecurable. Pdf chemistry and technology of polyols for polyurethanes. Amines, in general, and 3aminopropyltriethoxysilane, in particular, were shown to improve the adhesion of a polyurethane to glass. To date, new polyurethane coatings have become the dominant coating technology for the external application of underground and. It is a technologically advanced novoc silylated polyurethane.
The preparation of polyurethanes in such various forms has allowed their broad use in such industries as construction, engineering, automotive, textile. It presents the details of oligopolyol synthesis, and explains the chemical and. Waterbased polyurethane is clear, lowodor and has a quick drying time. Silylated polyurethanes, their preparation and use. The book adhesive technology and formulations hand book covers almost all the basic and advanced details to setup own gums and adhesive unit. This edition has been completely restructured, rewritten and enlarged by approximately 50%. The silylated polyurethane polymer includes a polyurethane prepolymer having between greater than about 50 to about 95% of nco groups terminated with silane capping agents. Aqueous silylated urethane compositions, aqueous adhesives for wrapping. The physical properties, as well as the chemical structure, of a polyurethane depend on the structure of the original reactants, in particular the r 1 and the r 2 groups.
This is an exlibrary book and may have the usual libraryused book markings inside. Silylated polyurethanes, their preparation and use henkel ag. A novel method for the hydrophobic modification and crosslinking of puds at ambient temperatures has been described in this paper. Physicochemical studies on polyurethanesiloxane crosslinked. Trempro 635 is a high performance, lowtomedium modulus, onecomponent, gun grade polyurethane sealant. A silylated polyurethane obtainable by a process comprising the following steps.
Afm measurements were conducted using an agilent technologies 5500. Nonisocyanate polyurethane nipu is a novel kind of polyurethane prepared by reaction of cyclocarbonates and amines without use of toxic isocyanates. Their potential technological applications include chemicalresistant. It provides a greater focus on the whole range of components used to produce polyurethanes, a more detailed analysis of environmental issues and extended. Industry and market information american chemistry. Synthesis and characterizations of silylated polyurethane. Adhesion of the polyurethane to chromeplated steel did not show similar effects.
Us6498210b1 silylated polyurethanes for adhesives and. Polyurethane pus is gaining immense interest as a speciality polymer for various highend applications. Despite its popular uses, polyurethane science has only relatively recently achieved appreciation for the richness of its expression as a polymer family. Nipu has attracted increasing attention because of its improvements in porosity, water absorption, and thermal and chemical resistance over conventional polyurethanes. Each contributed chapter handles new and interesting topics introducing the reader to the wider. A series of waterborne polyurethanes wpu with crosslinked siloxane were obtained through introducing 32aminoethylaminopropyldimethoxymethylsilane apts into wpu by in situ polymerization.
This presentation will discuss how both fumed and precipitated silica are engineered to specifically modify selected physical properties of spurbased. The silylated polyurethane composition when partially silylated is especially useful for pressure sensitive adhesives where it imparts superior adhesive and cohesive performance thereto. Polyurethane sealants are used in many highvolume applications such as construction and automotive. Kaneyoshi ashida, a renowned pioneer of polyisocyanurate pir foams, the book details the fundamental chemistry and material properties for each category of. Us8247514b2 silylated polyurethane compositions and adhesives. Momentive will present a new nonisocyanate cured silylated polyurethane y19243 resin that can help alleviate the need for primers at the european coatings show in nuremberg, germany, april 46.
Synthesis and properties of polyurethanes based on. Progress in study of nonisocyanate polyurethane industrial. Moisturecurable polyurethane and silane modified polyurethane adhesives. The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the tib portal. Nov 07, 2014 despite its popular uses, polyurethane science has only relatively recently achieved appreciation for the richness of its expression as a polymer family. Ultralightweight and flexible silylated nanocellulose.
This book considers the raw materials used to build the polyurethane polymeric architecture. Chemistry and technology of polyols for polyurethanes. Adhesives and their related application technology are always a substantial part of the perfect binding of brochures, the gluingoff of threadstitched book blocks, or the casingin of book blocks into the cover. It is recommended for surfaces that see little exposure to heat or the elements, such as desks, bookcases and end tables. Commercial polyurethane1 property ms polymer grade used in formulation from table 2 commercial polyurethane s203h s303h sax400 viscosity, pas 760 890 1030 880 tack free time, min 60 30 15 35 cure depth, mm, at 23c and 50%rh 1 day 7 days 3. This book systematically introduces the development of polyurethane resin coating process.
Us8247514b2 silylated polyurethane compositions and. The desire for economic production is shown by the steadily increasing production speeds that can be achieved in. According to a first aspect of the present invention, a silylated polyurethane is provided wherein said polyurethane is obtainable by a process comprising the step of contacting at least one isocyanate with at least one isocyanatereactive compound and with at least one aminosilane. The group formed by the reaction between the two molecules is known as the urethane linkage. These additives provide excellent water and chemical resistance, as well as.
A catalogue record for this book is available from the british library. The formation of the silylated polyurethane moiety was confirmed. An extension to existing conventional urethane technology, silylated polyurethanes allow us to produce fast cure products that are free from residual nco and exhibit superior physical properties. Internet archive open library book donations 300 funston avenue san francisco, ca 94118 better world books.
Overall, this book is an excellent exposition of the development of and importance of urethane sealants. Joseph prane, industrial consultant, in journal of coatings technology all in all, i found this book quite useful in my own business in several ways. Silylated polyurethanes are known as spurs and meet or surpass the performance of the old polyurethanes like vulkem and sikaflex 221 in transportation applications in every meaningful way. The enchanting and worthy world of pu beckoned to bring forth the book titled polyurethane. The result is a universal sealant that combines the excellent mechanical properties of a polyurethane sealant with the excellent universal adhesion, ease of application and nontoxicity of. In this work, we report the facile synthesis of hydrophobic, flexible, and ultralightweight. Szychers handbook of polyurethanes world leading book. Ultralightweight and flexible silylated nanocellulose sponges.
Study of properties of onecomponent moisturecurable polyurethane and silane modified polyurethane adhesives. Chemistry and technology, part 2 volume 16, parts 12 of high polymers a series of monographs on the chemistry, physics and technology of high polymeric substances high polymers polyurethanes. A silylated polyurethane composition containing polyester based polyurethane prepolymer. Synthesis, characterization and application of biobased. Xray diffraction and transmission electron microscopy examinations indicate that the clay platelets are mostly intercalated or partially exfoliated in the spua matrix. The properties of wpu modified by apts were studied through a variety of experimental methods. Science, technology, markets, and trends wiley series on polymer engineering and technology book 11 ebook. The chapter details the different methods of polyurethane synthesis, various starting materials. Drawing attention to novel raw materials, alternative blowing agents, and new processing methods, the book accentuates recent innovations that meet increasingly stringent environmental and fire safety. Aqueous dispersion of novel silylated polyurethaneacrylic.
You can also purchase this book from a vendor and ship it to our address. The chapter gives an introduction to the polyurethane pu polymer, its synthesis and its structure. Jul 27, 2007 using the silanemodified clay, novel aqueous silylated polyurethane acrylicclay nanocomposite dispersions spua silylated polyurethane acrylic were prepared and studied. A silylated polyurethane obtained by a process comprising the step of contacting at least one isocyanate with at least one isocyanatereactive compound and with at least one aminosilane. Silane and catalyst effects on silylated polymer elastomers. With usual stamps and markings, in fair condition, suitable as a study copy. An ecofriendly material, waterborne polyurethane wpu, has now been gradually replacing the traditional solvent polyurethane due to its use of safe, nontoxic, noncombustible water as dispersant 1,2. This new edition of a bestseller is an invaluable reference for. The tensile shear bond strength of the silylated polyurethane based adhesive decreased with decreasing the trimethoxysilane endcapping ratio, whereas an increase in the adherence was observed.
Silylated polyurethane spur resin systems is a growing class of resin chemistry offering formulators a versatile, environmentally friendly base for high performance adhesives and sealants. At equivalent concentrations of amine in the solutions used to treat the glass the order of increase in the work of adhesion was 3aminopropyltriethoxysilane. The silylated polyurethane composition when partially silylated is. It is the essential part of the polyurethane molecule. Here are excerpts from tremcos descriptions of 635. The two major types of polyurethane are oilbased and waterbased, each of which has different advantages. Refitting from the inherent properties of polyurethane materials, wpu can be flexibly designed to meet the requirements of different industries by changing its molecular weight, chemical. Silylated polyurethanes huntsman international llc. Us20160060382a1 silyl terminated prepolymers, method for.
With an active marketplace of over 270 million items, use the alibris advanced search page to find any item you are looking for through the advanced search, you can find items by searching specific terms such as title, artist, song title, genre, etc or you can narrow your focus using our amazing set of criteria parameters. Vegetable oil has gained momentous attention as a valuable renewable precursor and a potential alternative to the current petrobased polyol for the synthesis of pus. They function without requiring primers for most substrates, and can be applied in both one and twopart adhesive formulations. The new edition of the book is covering latest methods including introduction, historical development of adhesives and adhesive bonding. Please note the image in this listing is a stock photo and may not match the covers of the actual item,700grams, isbn. Chemistry and technology is an indepth examination of the current preparation, processing, and applications of polyurethanes purs and other polymer foams.
Silylated polyurethanes, their preparation and use henkel. Journal of adhesion science and technology volume 26, 2012 issue 1011. With amazing versatility across a diverse range of surfaces and applications, the opportunities for this unique technology continue to. Our sealing solutions alchimica is a leading producer of both one and two component hyperseal polyurethane sealants. Aqueous dispersion of novel silylated polyurethane.
Dec 04, 2014 polyurethane pur is a large and very diverse group of polymers, including elastomeric and thermoplastic materials liquid, millable, foams, and ionomers in the aqueous dispersions. Even as the first polyurethanes were being used in medical devices, some investigators recognized the possible advantages of combining silicone and polyurethane in a single biomaterial. This polyurethane resin is targeted to enable production of single component 1k directtometal paints. Polyurethanes, epoxies, unsaturated polyesters, phenolics, special monomers, and additives chemistry, technology, applications, markets hanser publishers published by oxford university press 1992 isbn 10. Effect of amine surface treatment on the adhesion of a. This polyurethane resin is targeted to enable production of single. Isocyanatefree polyurethane technology for wood coating. At equivalent concentrations of amine in the solutions used to treat the glass the order of increase in the work of adhesion was 3aminopropyltriethoxysilane 1, 4diaminobutane.
Wo 2009071542 a1 describes a method for preparing a silylated polyurethane, comprising reacting at least one polyol compound having a molecular weight of 4,000 to 30,000 gmol and at least one monofunctional compound with regard to isocyanates with at least one diisocyanate, in a stoichiometric excess of the sum of the polyol compounds and monofunctional compounds relative to the diisocyanate compounds, whereby a hydroxylterminated polyurethane. Although it does not provide ultimate detail such as explicit information typically in patents, the book has a flow and continuity that allows readers to find all the background necessary to understand any other. A practical handbook rather than merely a chemistry reference, szychers handbook of polyurethanes, second edition offers an easytofollow compilation of crucial new information on polyurethane technology, which is irreplaceable in a wide range of applications. Silylterminated polyurethanes adhesion and surface. Bruins, 1969, interscience publishers edition, in english. Silylated polyurethane polymers for sealants technische. Dec 01, 2004 a novel method for the hydrophobic modification and crosslinking of puds at ambient temperatures has been described in this paper.
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