Now showing items 1-10 of 6223
Effect of crystallinity on CF/PPS performance under weather exposure: Moisture, salt fog and UV radiation
The crystalline content of a composite can affect its performance under environmental conditions. The objective of this study is to evaluate the influence of the crystallinity degree of CF/PPS composites to hygrothermal, ...
The crystallinity degree influence on the weather resistance of CF/PPS composites
Polyphenylene sulphide (PPS) is a semi-crystalline high-performance thermoplastic used in the aeronautic field as a composite usually reinforced with carbon fibers. The crystallinity of semi-crystalline thermoplastics can ...
Effect of annealing temperature on the crystalline quality of Chemically Deposited CdSe films
(Sociedad Mexicana de Ciencia de Superficies y Vacio, 2013-01-16)
Effects of autohydrolysis of Eucalyptus urograndis and Eucalyptus grandis on influence of chemical components and crystallinity index
Samples of Eucalyptus urograndis and Eucalyptus grandis sawdust were autohydrolyzed in aqueous conditions to reach temperatures in the range 110-190 °C and reaction times of 0-150 min in a minireactor. In each minireactor ...
Correlation between degree of crystallinity, morphology and mechanical properties of PPS/carbon fiber laminates
The crystallization degree in semi-crystalline thermoplastics plays an important role in determining the final properties of structural composite material (e.g. Toughness, stiffness and solvent resistance). The main purpose ...
Development of nanotechnology-based drug delivery systems with olive vegetable oil for cutaneous application
Liquid-Crystalline Systems represent active compounds delivery systems that may be able to overcome the physical barrier of the skin, especially represented by the stratum corneum. To obtain these systems, aqueous and oily ...
Descrições estruturais cristalinas de zeólitosDescriptions of crystalline structures of zeolites
(Sociedade Brasileira de Química, 2007)
Chemical Etching and TEM Crystalline Quality Assessment of Single Crystalline ZnSe Ingots Grown by I2 Vapor Phase Transport
(Cosmos Scholars Publishing House, 2015-12)
Crystalline defects were studied in single crystalline ZnSe grown by chemical transport using I2 as gaseous carrier. Transmission electronic microscopy determined an excellent structural order in the micrometric and ...
Effect of ball milling on structural and physicochemical characteristics of cassava and Peruvian carrot starches
Peruvian carrot and cassava starches were ground in a ball mill for 4, 8, 16, and 32 h and their structural and physicochemical characteristics were determined. Results obtained from HPAEC-PAD, GPC, and amylose content ...
Synthesis and characterization of a novel liquid crystalline side chain metallopolymer
(Hüthig & Wepf Verlag, 1998)
The synthesis of a novel kind of form-retaining liquid crystalline crosslinked metallopolymer is reported. Copper(II) is complexed by Schiff's base units as part of a mesogenic side chain polymer. This leads to remarkable ...