Results 251 to 260 of about 127,267 (288)

Polymerized Lightweight Fibrous Composites

Journal of Macromolecular Science: Part A - Chemistry, 1983
Abstract Industrial, agricultural, and naturally occurring waste materials in conjunction with liquid epoxy resin, asbestos, and silica have been employed to make lightweight engineering composite materials. To bring down the cost of epoxy resin, phenol formaldehyde was used as a binding material.
T. M. Aminabhavi, N. S. Biradar, R. M. Holennavar   +2 more
openaire   +1 more source

Conductive polymeric compositions

Polymer Engineering & Science, 1977
AbstractIn most low‐strength applications, plastics offer cost, maintenance, and density advantages over metals. Major deficiencies of plastics, however, are low thermal and electrical conductivities. Various studies have dealt with these problems, and it has been found that thermal conductivity and electrical conductivity can both be increased by the ...
openaire   +1 more source

New polymeric coating compositions

Pigment & Resin Technology, 1989
Triethanolamine derivatives of fatty acids were incorporated in an alkyd formulation as the ingredient source of polyol. The various parameters affecting the resin formation were also studied.
Nadia M. Thha, M. Moustafa, N. Abd El‐Khalik, A.M. Naser   +3 more
openaire   +1 more source

New Conductive Polymeric Composites

1984
A new method has recently been proposed of obtaining conductive polymeric materials. It consists in crystallizing a conductive charge-transfer complex during the process of polymer film casting. If the composition and casting conditions are chosen properly, a conductive material can be obtained at an additive content as low as 1 wt.%.
J. Ulański, J. K. Jeszka, M. Kryszewski
openaire   +1 more source

Polymeric Composite Tube Fabrication

Journal of Engineering Materials and Technology, 1995
An aluminum mold was designed for fabrication of research quality composite tubes on a hot press (miniclave). This mold allows the pressure to be applied uniformly to the inner surface of a composite (prepreg tape) tube while a constant vacuum is also applied independently to the composite throughout the course of fabrication.
Byung Sun Kim, Terry F. Lehnhoff
openaire   +1 more source

Recycling of polymeric composites

Macromolecular Symposia, 1998
AbstractFor material recycling, composites have to be separated into their components, as only non‐mixed raw materials can grant high quality standards. A combined mechanical and subsequent electrostatic separation can be classified as highly economic because it is a dry treatment. This is demonstrated on wire scrap.
Mang, Thomas (Prof. Dr. rer. nat.), Haulena, Friedhelm   +1 more
openaire   +1 more source

Multi-component polymeric composites

Synthetic Metals, 1994
Abstract New types of composite systems based on polymeric matrices (polystyrene, polyethylene) containing conductive (Pd, Ag, Ag alloys) and dielectric (ferroelectric) components such as as BaTiO 3 or piezosonic powder were developed and investigated in bulk and as thick films. The latter were prepared using a screen-printing technique applying the
R. Kužel, I. Kǐivka, J. Kubát, J. Prokeš, S. Nešpůek, C. Klason   +5 more
openaire   +1 more source

The polymerization shrinkage of composite resins

Dental Materials, 1989
The majority of methods used for the determination of volumetric polymerization shrinkage rely on mercury as the immersion medium. With current concern for industrial hygiene, the water-filled dilatometer may have advantages. The purpose of this study was to adapt this method for external-energy-cured materials.
J S, Rees, P H, Jacobsen
openaire   +2 more sources

Polymerization of composites using pulsed laser

European Journal of Oral Sciences, 1995
The quality of visible‐light‐cured composites depends on the capability of the light source to properly polymerize the material within a specified exposure lime. In this study, the degree of conversion of different composite materials (hybrid and microfilled) of light and dark shades was compared after illumination by a standard curing unit and pulsed ...
Tarle, Zrinka, Meniga, Andrej, Ristić, Mira, Šutalo, Jozo, Pichler, Goran   +4 more
openaire   +2 more sources

Solid–Liquid Self-Adaptive Polymeric Composite

ACS Applied Materials & Interfaces, 2016
A solid-liquid self-adaptive composite (SAC) is synthesized using a simple mixing-evaporation protocol, with poly(dimethylsiloxane) (PDMS) and poly(vinylidene fluoride) (PVDF) as active constituents. SAC exists as a porous solid containing a near equivalent distribution of the solid (PVDF)-liquid (PDMS) phases, with the liquid encapsulated and ...
Pei, Dong, Alin Cristian, Chipara, Phillip, Loya, Yingchao, Yang, Liehui, Ge, Sidong, Lei, Bo, Li, Gustavo, Brunetto, Leonardo D, Machado, Liang, Hong, Qizhong, Wang, Bilan, Yang, Hua, Guo, Emilie, Ringe, Douglas S, Galvao, Robert, Vajtai, Mircea, Chipara, Ming, Tang, Jun, Lou, Pulickel M, Ajayan   +19 more
openaire   +2 more sources