Yukihiko Taketani, Hajime Kondo and M. Kropman
Performance tests were carried out on the anti‐corrosion ability of K‐White 84S, a new grade for water‐based paints, specially designed to impart stability to aqueous systems…
Abstract
Performance tests were carried out on the anti‐corrosion ability of K‐White 84S, a new grade for water‐based paints, specially designed to impart stability to aqueous systems whilst maintaining good cost‐effectiveness. The results of salt spray tests and humidity tests have shown that K‐White 84S was superior to the other anticorrosion pigments with which it was compared in this study.
An accelerating trend in the development of aqueous paint has been taking place recently so much so that it has been predicted that at the end of the present decade 80% of all…
Abstract
An accelerating trend in the development of aqueous paint has been taking place recently so much so that it has been predicted that at the end of the present decade 80% of all motorcar finishes will be water‐based. Anticorrosion primers are included in these forecasts and there is now available a range of primers based on a new generation of polymers with improved mechanical properties, low moisture vapour permeability, good UV resistance, adhesion and solvent resistance. Using water to protect steel from corrosion would appear to fly in the face of logic, but an ever‐increasing number of paint manufacturers are doing just this. It has been claimed that properly formulated waterborne primers offer performance equal or superior to conventional solvent‐based systems.
This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/eb042919. When citing the article, please…
Abstract
This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/eb042919. When citing the article, please cite: Dr. M. Kropman MSc PhD, (1992), “K-White: Formulating for aqueous anticorrosive primers”, Pigment & Resin Technology, Vol. 21 Iss: 3, pp. 4 - 7.
Performance tests were carried out on the anti‐corrosion ability of K‐White, K‐White/zinc phosphate mixtures and modified zinc phosphate on the same cost basis. The results of…
Abstract
Performance tests were carried out on the anti‐corrosion ability of K‐White, K‐White/zinc phosphate mixtures and modified zinc phosphate on the same cost basis. The results of salt spray tests and humidity tests in a medium oil alkyd primer system have shown that K‐White was much more efficient and cost‐effective even at its lower loading levels, compared with the other pigments.
Petr Mošner, Andrea Kalendová, Ladislav Koudelka and Petr Kalenda
Four pigments derived from the SrO–ZnO–B2O3–P2O5 system were tested in a solvent coating system based on a modified alkyd resin and water‐borne system based on a styrene–acrylate…
Abstract
Four pigments derived from the SrO–ZnO–B2O3–P2O5 system were tested in a solvent coating system based on a modified alkyd resin and water‐borne system based on a styrene–acrylate dispersion. The pigments pastes were applied on activated steel panels and after conditioning standard corrosion tests were performed comprising the determination of resistance to humid atmospheres containing SO2 and also the resistance to a neutral salt fog. Test results were compared with those performed on the coatings prepared with standard anticorrosion pigments of Zn3(PO4)2.2H2O, Ca(BO2)2, Zn(BO2)2 a Ba(BO2)2. Some tested pigments revealed at least comparable corrosion‐inhibition properties with standard pigments. Coatings based on alkyd resins gave better results than those prepared form water‐borne system.
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This study aims at identifying Andrews University's students' perceptions, behavior, use, and attitudes towards e‐textbook and e‐books in general.
Abstract
Purpose
This study aims at identifying Andrews University's students' perceptions, behavior, use, and attitudes towards e‐textbook and e‐books in general.
Design/methodology/approach
In the Fall semester of 2001‐2012, Andrews University's bookstore offered 74 e‐textbooks for purchase. The teachers who had the opportunity of using these e‐textbooks for their classes were asked to distribute two questionnaires to their students: one to those who chose to buy and use the e‐textbook and a slightly different one to those who chose the traditional print textbook. The results were tabulated and compared to the results of similar studies since 2001.
Findings
A 65 percent return rate was obtained. Several findings closely replicate results of many studies on this area. For more than a decade, studies show that students prefer the hardcover book over the e‐book for their studies. Lack of awareness, not knowing how to get it, eyestrain, and difficulty of reading are the main culprits for students not using e‐books more often. However, those who use e‐books report they are generally satisfied. Students would like to enjoy fewer restrictions on printing and copying, PDA accessibility, more titles in their area of studies and better e‐book readers. They do not usually read e‐books cover to cover. The library is not their main point of entry or search for e‐books. Students value portability, instant access, light weight and ability to store large amounts of materials.
Research limitations/implications
The sample population was limited to the classes which had access to an e‐textbook. A broader and more complete understanding could have been obtained if the study included all of the student population. It is not possible to generalize the findings due to the fact that the study was done in a specific academic setting.
Practical implications
Universities and libraries are highly engaged in this topic at the present moment. Results of studies like this one will provide data useful for collection development policies and the pedagogy adopted by faculty in the classroom.
Social implications
This is a topic that is of increasing importance in all parts of the world, and is affecting how people and, more specifically, students read and learn. It has the potential of changing reading habits and how students absorb information and knowledge, as well as how they use libraries.
Originality/value
E‐books will have a definitive impact in new models of acquiring, accessing, and distributing information materials for and to the academic community. The paper will help the library better understand students' preferences and study habits which will have an impact on decisions regarding types of services it should provide and collection building decisions.
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Sheen Instruments last week held a very successful two‐day agents sales conference in Portsmouth, which was attended by their distributors from all over the world. The conference…
Abstract
Sheen Instruments last week held a very successful two‐day agents sales conference in Portsmouth, which was attended by their distributors from all over the world. The conference also marked the official launch of the new Sheen Automatic Panel Sprayer to agents and specially invited U.K. customers.
For many years now, two‐component epoxy coatings have been used in a wide range of industrial applications, including traditional market areas such as floor paints and concrete…
Abstract
For many years now, two‐component epoxy coatings have been used in a wide range of industrial applications, including traditional market areas such as floor paints and concrete sealers. Originally, the majority of such products were thinned with petroleum‐based solvents, but in the 1970s, Thomas Swan introduced Casamid 360, a water‐based polyaminoamide permitting significant reductions in volatile organic content while allowing basic characteristics to remain largely unchanged.
BP Chemicals has agreed to transfer its amino surface coating resin business to Dyno Industrier AS of Oslo, Norway, with effect from April 1st. BP Chemicals will continue to…
Abstract
BP Chemicals has agreed to transfer its amino surface coating resin business to Dyno Industrier AS of Oslo, Norway, with effect from April 1st. BP Chemicals will continue to manufacture some grades on behalf of Dyno who will notify customers of their new reference numbers. Dyno Industrier are represented in the UK by Charles Tennantand Company (London) Ltd, with whom BP Chemicals has a long‐standing association. UK customers should direct all inquiries to Tennant and Company at 69 Grosvenor Street, London, W1X 0BP, telephone 01–493 5451. Overseas customers are asked to place orders with Dyno Industrier local agents, or direct to Dyno Industrier AS, at PO Box 779, Oslo 1, Norway.
Haverhill‐based Kemira Coatings, a leading manufacturer of factory applied coatings for wood, has been awarded four stars under the British Safety Council Five Star rating for…
Abstract
Haverhill‐based Kemira Coatings, a leading manufacturer of factory applied coatings for wood, has been awarded four stars under the British Safety Council Five Star rating for safety in the workplace, by the Council's director general, James Tye.