Although there is no doubt that composite materials are the future of lightweight structures and components, most composites currently produced made from thermoset polymers, which not able to be recycled or reprocessed. In contrast, thermoplastic polymers offer possibility recycle reprocess when combined with a fibrous reinforcement, provide interesting mechanical properties. This work reviews ...

K. Kaczmarska, B. Grabowska, D. Drożyński, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland The results of preliminary tests of selected properties of the moulding sands with the binder in the form of a 5 % water solution of the sodium salt of carboxymethyl starch (with a degree of substitution (DS) of 0,2 and 0,87) are presented in this study. The mouldi...

There is an increased demand within the moulding industry to improve the quality of moulded parts by maintaining consistent tolerances and overall dimensions. This interest is more important in areas of the moulding industry that are dedicated to pharmaceutical devices, where a quality by design approach is now expected to be adopted. A pharmaceutical device is an assembly of different plastic ...

Binder Jetting is an Additive manufacturing (AM) technique in which binding liquid jetted on layers of powdered materials, selectively according to the Computer Aided Design (CAD) model form a 3D part. One applications binder jetting technology sand moulds for casting known as Rapid Sand Casting. Silica often used both Casting and traditional moulding due its good refractory properties coupled ...

Injection moulding is one of the most popular polymer processing methods due to its high production rate as well as its ability to produce very intricate geometries at very cheaper cost and within few seconds. There are several flaws which occur while producing plastic parts by Injection moulding, like warpage, shrinkage, flash, sink marks etc. Shrinkage is one of the most critical problems whi...

in the present work, high temperature tensile properties of medium density polyethylene (mdpe) and its nanocomposites are investigated. for this purpose mdpe reinforced with different weight percentages of nano-sized calcium (2, 5, 10) are produced by compression moulding method. tensile tests have been carried out at different temperatures, i.e. 30, 60, 90c using thermomechanical analysis (tm...

Complex diffractive lens arrays for passive infrared detection systems have been designed and fabricated by laser beam writing and injection moulding. Continuous relief profiles with depths up to 20 μm were originated, characterised and replicated. 1999 Optical Society of America OCIS codes: (050.1970, 120.1880)

New studies suggest the extent to which fungi are local to their indoor habitats.