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Development of Self-Stratifying Systems as Sustainable Coatings

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Certain coating applications including those used in aerospace, industrial maintenance, construction and transportation industries require a combination of primer/topcoat or basecoat/clearcoat layers. These multilayered systems require complex application and curing procedures. Multiple formulation, application and processing steps not only contribute to environmental waste generation and pollution they also use an excessive amount of energy until a solid film has been produced

Product Number: 41213-729-SG
Author: J. Baghdachi, H. Perez, Punthip Talapatcharoenkit
Publication Date: 2013
Industries: Coatings , Coatings and Linings
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$20.00
$20.00

Certain coating applications including those used in aerospace, industrial maintenance, construction and transportation industries require a combination of primer/topcoat or basecoat/clearcoat layers. These multilayered systems require complex application and curing procedures. Multiple formulation, application and processing steps not only contribute to environmental waste generation and pollution they also use an excessive amount of energy until a solid film has been produced. In addition, in most cases, including aerospace and industrial maintenance applications, the primer or undercoat must be top coated within a specified period otherwise inter-coat adhesion will be compromised. It would be desirable to reduce the number of layers to a minimum while providing the same or better overall performance that current systems provide. In this paper we report the design and development of thermosetting polyurethane coatings that self-stratify to two distinct phases upon application and cure. Prototype pigmented systems were applied and cured and were characterized by FTIR, SEM/EDX and were evaluated using standard coating test methods.

Certain coating applications including those used in aerospace, industrial maintenance, construction and transportation industries require a combination of primer/topcoat or basecoat/clearcoat layers. These multilayered systems require complex application and curing procedures. Multiple formulation, application and processing steps not only contribute to environmental waste generation and pollution they also use an excessive amount of energy until a solid film has been produced. In addition, in most cases, including aerospace and industrial maintenance applications, the primer or undercoat must be top coated within a specified period otherwise inter-coat adhesion will be compromised. It would be desirable to reduce the number of layers to a minimum while providing the same or better overall performance that current systems provide. In this paper we report the design and development of thermosetting polyurethane coatings that self-stratify to two distinct phases upon application and cure. Prototype pigmented systems were applied and cured and were characterized by FTIR, SEM/EDX and were evaluated using standard coating test methods.

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