نتایج جستجو برای: thermoplastic injection

تعداد نتایج: 161754  

Journal: :Biomacromolecules 2011
Xinzhu Gu Jian Wu Patrick T Mather

In this Article, we studied the enzymatic hydrolytic biodegradation behavior of a novel multiblock thermoplastic polyurethane (TPU) system, which incorporates polyhedral oligomeric silsesquioxane (POSS) into linear biodegradable thermoplastic polyurethanes containing poly(ε-caproactone) (PCL) and polyethylene glycol (PEG) blocks. The biodegradation behavior of POSS-PCL-PEG TPUs was characterize...

1999
B. Ribeiro

Injection molding technology should assure a high level of quality control of the molded parts in an automated way. Inherent complexities of the process make mathematical modeling di¢cult, hindering the control quality demands of conventional methods. Neural networks adaptive data based technology has been successfully applied in industrial applications since these rely on highly nonlinear mode...

2003
M N Emmambux S Iannace M Stading

Thermoplastic proteins can be prepared by using a suitable plasticizer and by using a proper combination of mechanical shear and heat. The amount of plasticizer and the processing conditions leads to materials with different chemical and physical properties which can be optimized to produce films, fibers and foams. The effect of type and amount of plasticizer, and the effect of processing condi...

2013
W. Steinmann S. Walter M. Beckers G. Seide T. Gries

Each year about 50 Million tons polymer is processed to fibers worldwide [1]. Polymeric fibers are manufactured into all sorts of daily as well as industrial goods [2, 3]. The most prominent materials are thermoplastic among which poly(ethylene terephtalat) (PET), polyamides (PA) and polypropylene (PP) make up the largest fraction [4]. Other thermoplastic polymers such as poly(vinylidene fluori...

Journal: :Dental materials journal 2010
Yota Takabayashi

Six thermoplastic resins and conventional acrylic resin were examined to characterize their mechanical and physical properties, water sorption, solubility, flexural strength, modulus of elasticity, tensile strength and color stability. Thermoplastic resins for non-metal clasp dentures exhibiting low water sorption and solubility offer hygienic advantages. Since they have a low modulus of elasti...

2012
B. Rietman U. Sachs R. Akkerman

The inherent advantages of thermoplastics over the traditional thermoset composite systems are well recognized in the aeronautics community. The main advantages are the much faster processing and the higher toughness. The current advanced thermoplastic material systems provide excellent mechanical performance but their main disadvantage is the difficult processing. Ideally, future aircraft subc...

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