Results 311 to 320 of about 79,151 (345)
Some of the next articles are maybe not open access.
Photoinjection into polyethylene terephthalate
Canadian Journal of Physics, 1977We have measured the photocurrents injected into polyethylene terephthalate from evaporated aluminum electrodes in the wavelength range 475–300 nm following a careful depolarization of the specimens. The yield curves give linear plots of (yield)1/2 against photon energy. The threshold energy is [Formula: see text].
H. J. Wintle, S. Sapieha
openaire +2 more sources
Solubility of Polyethylene Terephthalate
Nature, 1965IT is generally considered that polyethylene terephthalate is soluble only in a restricted range of rather specialized organic liquids, such as o-chlorophenol, tetrachlorethane/phenol, etc. It is the purpose of this report to describe conditions under which this range may be extended.
L. Cottam, R. P. Sheldon
openaire +2 more sources
Aminolysis of polyethylene terephthalate
Polymer, 1963Abstract By treating polyethylene terephthalate fibres with solutions of hydrazine, benzylamine, ethylenediamine, hexamethylenediamine, piperidine and aniline the following amides of terephthalic acid and oligomeric diacids have been obtained: terephthalic dihydrazide, terephthalic bis-benzylamide, bis-benzylamides of oligomers, probably dimer and ...
H. Pfeifer, H. Zahn
openaire +2 more sources
Crystallization of polyethylene terephthalate
Journal of Polymer Science, 1953AbstractA method for following rapid crystallization in polymers using infrared absorption has been devised. The infrared absorption was correlated quantitatively with the density of polyethylene terephthalate for varying degrees of crystallinity and qualitatively with the change in x‐ray diffraction pattern on crystallization of this polymer.
W. H. Cobbs, R. L. Burton
openaire +2 more sources
The fracture behaviour of polyethylene terephthalate
Journal of Materials Science, 1972Tensile, notched tensile and cleavage tests have been carried out on amorphous and crystalline polyethylene terephthalate of different molecular weights.
J. S. Foot, I. M. Ward
openaire +2 more sources
The photolysis of polyethylene terephthalate
Journal of Polymer Science, 1959AbstractThe photolysis of films of polyethylene terephthalate has been studied over a wide variation of exposure conditions. The rate of polymer bond rupture was measured by the change in molecular weight. The rate of energy absorption upon exposure to near ultraviolet light was determined from an analysis of the emission characteristics of the light ...
openaire +2 more sources
1995
Publisher Summary This chapter opens with the general discussion of joining techniques regarding polyethylene terephthalate. Mouldings may be joined by the use of adhesives, by ultrasonic welding or mechanically by self-tapping inserts. Epoxy and cyanoacrylate adhesives are particularly effective.
openaire +3 more sources
Publisher Summary This chapter opens with the general discussion of joining techniques regarding polyethylene terephthalate. Mouldings may be joined by the use of adhesives, by ultrasonic welding or mechanically by self-tapping inserts. Epoxy and cyanoacrylate adhesives are particularly effective.
openaire +3 more sources
Textile Research Journal, 2014
For environmental conservation, post-consumer polyethylene terephthalate (PET) bottles are recycled using methods ranging from mechanical recycling to various chemical recycling processes. In this study, the characterization of recycled PETs and PET–nylon6 blend knitted fabrics, and virgin PET knitted fabric, was carried out with the aim of ...
Yeon Joo Choi, Seong Hun Kim
openaire +2 more sources
For environmental conservation, post-consumer polyethylene terephthalate (PET) bottles are recycled using methods ranging from mechanical recycling to various chemical recycling processes. In this study, the characterization of recycled PETs and PET–nylon6 blend knitted fabrics, and virgin PET knitted fabric, was carried out with the aim of ...
Yeon Joo Choi, Seong Hun Kim
openaire +2 more sources
Heterogeneous crystallisation of polyethylene terephthalate
British Polymer Journal, 1979AbstractAn examination of the effect of various inorganic and organic additives on the crystallisation behaviour of polyethylene terephthalate has been made. Various methods of mixing the polymer and additives were also investigated and one involving screw extrustion was finally adopted.
Ronald P. Sheldon, Christopher Ibbotson
openaire +2 more sources
Etching of polyethylene terephthalate
Journal of Polymer Science, 1962AbstractA degradative etching technique has been employed with polyethylene terephthalate films to demonstrate the existence of several different structures, the size of which vary from hundreds of microns to hundreds of Angstroms. The micron‐sized structures are a function of the processing and orientation of the film and occur in regular geometric ...
openaire +2 more sources