http://www.journal-imab-bg.org / J of IMAB. 2016, vol. 22, issue 3/ ABSTRACT Purpose: The purpose of this in vivo study is to register the forces necessary to displace maxillary complete dentures fabricated by compression molding and injection molding techniques on one and the same patient and to compare the interfacial surface tension and capillarity which are achieved by both techniques. Mate...

Active packaging has played a significant role in consumers’ health and green environment over the years. Synthetic polymers, such as poly(ethylene terephthalate) (PET), polyethylene (PE), polypropylene (PP), polystyrene, poly(vinyl chloride) (PVC), polycarbonate (PC), poly(lactic acid) (PLA), etc., naturally derived ones, cellulose, starch, chitosan, are extensively used materials due to their...

This study aimed to create a self-reinforced composite material that can be processed by injection molding and other standard thermoplastic processing techniques potentionally used as implant material. Self-reinforcement in biomaterials is desirable because it does not compromise biocompatibility improves biofunctionality through improved mechanical performance. Self-reinforced composites curre...

The weight lightening of electric vehicles’ power battery box not only improves the mileage but also extends service life battery, while in practice design lightweight shall sacrifice its strength for safety reason. Herein, three materials including glass fiber composite, carbon and metal steel are used to develop same their strengths simulated. results show that sheet molding compound (SMC, a ...

Abstract This study investigated the mechanical performance of short aramid fiber on polypropylene, polyethylene, polyamide 6, and 12. Extrusion, press molding, CNC cutting methods were used in production composite samples. Tensile, three-point bending, drop weight hardness tests composites carried out. As volume fractions increased, properties improved, but most efficient for each matrix chang...

The extrusion processes of ceramic pastes, including 3D printing, are used for the production high-value products. Ceramic paste is a complex process which depends on rheological properties, die and extruder geometries, operational parameters. Modeling quantitative analysis molding important to design proper extrudates desired strength, shape, morphology. In this paper, mathematical model ram m...

Cleft of the lip, alveolus and palate (CLAP), is a complex facial deformity, which requires multiple surgeries and bone grafting to correct the defect. Active or passive Pre surgical Orthopedic Molding reduces the deformity and thus reduces number of surgeries to achieve superior post surgical esthetic. Pre-surgical nasoalveolar molding (PNAM) is passive molding which align and approximate the ...

The main objective of this research was to study the influence an enzymatic treatment process date palm fibers on their chemical and morphological properties as well physical mechanical characteristics composites filled with raw treated fibers. To end, three extraction approaches were considered (a combination xylanase pectinase enzymes, enzymes followed by a one enzyme xylanase). Chemical anal...

The presence of an already molded component during the second and subsequent molding stages makes multi-material injection molding different from traditional injection molding process. Therefore, designing multi-material molded objects requires addressing many additional manufacturability considerations. In this paper, we first present an approach to systematically identifying potential manufac...