Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Abstracts

Abstracts NOVEMBER 1972 PIGMENT AND RESIN TECHNOLOGY 25 The reaction of red lead primers wit h Determination of the scratch resistance concentrated ferric sulphate of coated and uncoated plastics K. Dietzel; farbe & lack, Aug. 1972, p. 713 G. Lincke; farbe & lack, Aug. 1972, p. 723 Attempts are made to define hardness and This is an extension of the author's work scratch resistance for plastics, and to develop a presented at Fatipec recently. In this article the author describes that his findings on the reaction testing method. Measuring various materials, it was between ferric sulphate and crystalline red lead also found that the brittle materials such as glass are more scratch resistant. In addition some plastics are applicable for completely cured red lead primer were found which, despite their considerable 'soft­ coats, if the pigment volume concentration is correct. ness', were practically unscratchable. The distance between the edges of the pigment aggregates is important, and hence the length of the diffusion paths of the vagrant iron salts in the swelled film is critical. Properties and application of film- forming binders for use in the food industry Fungal growt h factors : a plan of K. Weinmann; defazet-aktuell, Sept. 1972, p. 459 investigation Several important film-forming binders are D. O. Hill, G. C. April; J. Paint Tech., Aug. 1972, p. 43 discussed in terms of their composition and appli­ A review of paint research literature is pre­ cation, as well as their toxicological behaviour. sented to define those variables which have been Additives such as accelerators, curing agents and shown to contribute to the fungal defacement of stabilisers against heat and radiation are of parti­ painted surfaces. A discussion of test methods, cular importance. experimental designs, and analytical methods to elucidate the interactive effects that these variables have on fungal growth is presented. Particle size classification of plastic powders Diffusion of vapours in organic coatings R. E. Schaller, C. E. Lapple; J. Paint Tech., Aug. 1972, A. Kishimoto; Prog. Org. Coatings, Aug. 1972, p. 91 p. 86 The diffusion of vapours and gases in organic Centrifugal air classification is an effective coatings is of considerable interest. For example, the method for tailoring particle size distributions of rate of drying of a paint film is governed by the rate plastic powders. Cut size, sharpness, and feed of migration of the solvent to the surface. Low capacity are all important in assessing classifier permeability to moisture, oxygen, carbon dioxide and performance. A wide variety of commercial equip­ other substances is essential for protective coatings. ment is available, from large production models to This review is confined to a discussion of problems laboratory units. of fundamental importance for understanding several diffusion phenomena in organic coatings. The measurement of colour and colour differences using photoelectric Preparation of powders for electrostatic tristimulus colorimeters coatings J. Soc. Dyers and Colourists, July 1972, p. 256 J. Crowley, G. Teague, L. Curtis, R. Foulk, F. Ball; Recommendations are made for the measure­ J. Paint Tech., Aug. 1972, p. 56 ment of colour and colour differences with photo­ A spray drying technique has been developed electric tristimulus colorimeters. Instrumentation for the laboratory preparation of metallic and non- standardisation, measurements on one sample, metallic pigmented powders having a particle size measurement of colour differences and procedures range of approximately 5 to 50μ. Powders in this of sample presentation and measurement are dis­ range can also be prepared by cryogenic grinding cussed. A recommended procedure is detailed. and by the use of fluid energy mills with screening. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pigment & Resin Technology Emerald Publishing

Abstracts

Pigment & Resin Technology , Volume 1 (11): 1 – Nov 1, 1972

Loading next page...
 
/lp/emerald-publishing/abstracts-PWkyV7qN7z

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0369-9420
DOI
10.1108/eb040866
Publisher site
See Article on Publisher Site

Abstract

NOVEMBER 1972 PIGMENT AND RESIN TECHNOLOGY 25 The reaction of red lead primers wit h Determination of the scratch resistance concentrated ferric sulphate of coated and uncoated plastics K. Dietzel; farbe & lack, Aug. 1972, p. 713 G. Lincke; farbe & lack, Aug. 1972, p. 723 Attempts are made to define hardness and This is an extension of the author's work scratch resistance for plastics, and to develop a presented at Fatipec recently. In this article the author describes that his findings on the reaction testing method. Measuring various materials, it was between ferric sulphate and crystalline red lead also found that the brittle materials such as glass are more scratch resistant. In addition some plastics are applicable for completely cured red lead primer were found which, despite their considerable 'soft­ coats, if the pigment volume concentration is correct. ness', were practically unscratchable. The distance between the edges of the pigment aggregates is important, and hence the length of the diffusion paths of the vagrant iron salts in the swelled film is critical. Properties and application of film- forming binders for use in the food industry Fungal growt h factors : a plan of K. Weinmann; defazet-aktuell, Sept. 1972, p. 459 investigation Several important film-forming binders are D. O. Hill, G. C. April; J. Paint Tech., Aug. 1972, p. 43 discussed in terms of their composition and appli­ A review of paint research literature is pre­ cation, as well as their toxicological behaviour. sented to define those variables which have been Additives such as accelerators, curing agents and shown to contribute to the fungal defacement of stabilisers against heat and radiation are of parti­ painted surfaces. A discussion of test methods, cular importance. experimental designs, and analytical methods to elucidate the interactive effects that these variables have on fungal growth is presented. Particle size classification of plastic powders Diffusion of vapours in organic coatings R. E. Schaller, C. E. Lapple; J. Paint Tech., Aug. 1972, A. Kishimoto; Prog. Org. Coatings, Aug. 1972, p. 91 p. 86 The diffusion of vapours and gases in organic Centrifugal air classification is an effective coatings is of considerable interest. For example, the method for tailoring particle size distributions of rate of drying of a paint film is governed by the rate plastic powders. Cut size, sharpness, and feed of migration of the solvent to the surface. Low capacity are all important in assessing classifier permeability to moisture, oxygen, carbon dioxide and performance. A wide variety of commercial equip­ other substances is essential for protective coatings. ment is available, from large production models to This review is confined to a discussion of problems laboratory units. of fundamental importance for understanding several diffusion phenomena in organic coatings. The measurement of colour and colour differences using photoelectric Preparation of powders for electrostatic tristimulus colorimeters coatings J. Soc. Dyers and Colourists, July 1972, p. 256 J. Crowley, G. Teague, L. Curtis, R. Foulk, F. Ball; Recommendations are made for the measure­ J. Paint Tech., Aug. 1972, p. 56 ment of colour and colour differences with photo­ A spray drying technique has been developed electric tristimulus colorimeters. Instrumentation for the laboratory preparation of metallic and non- standardisation, measurements on one sample, metallic pigmented powders having a particle size measurement of colour differences and procedures range of approximately 5 to 50μ. Powders in this of sample presentation and measurement are dis­ range can also be prepared by cryogenic grinding cussed. A recommended procedure is detailed. and by the use of fluid energy mills with screening.

Journal

Pigment & Resin TechnologyEmerald Publishing

Published: Nov 1, 1972

There are no references for this article.