Study on insulating properties of polyethylene terephthalate/montmorillonite nanocomposites

GaAs layers grown by MBE at low temperatures (in the 200°C range, LT-GaAs) have been reported to have very interesting electronic and transport properties. Previous studies have shown that, before annealing, the crystalline quality of the layers is related to the growth temperature. Lowering the temperature or increasing the layer thickness generally results in some columnar polycrystalline growth. For the best “temperature-thickness” combinations, the layers may be very As rich (up to 1.25%) resulting in an up to 0.15% increase of the lattice parameter, consistent with the excess As. Only after annealing are the technologically important semi-insulating properties of these layers observed. When annealed in As atmosphere at about 600°C a decrease of the lattice parameter to the substrate value is observed. TEM studies show formation of precipitates which are supposed to be As related since the average As concentration remains almost unchanged upon annealing.

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Treatment of polyethylene terephthalate in a He glow discharge

Journal de Physique IV (Proceedings) ◽

10.1051/jp4:2001345 ◽

2001 ◽

Vol 11 (PR3) ◽

pp. Pr3-357-Pr3-362 ◽

Cited By ~ 1

Author(s):

D. D. Papakonstantinou ◽

D. Mataras ◽

Arefi-Khonsari

Keyword(s):

Glow Discharge ◽

Polyethylene Terephthalate

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Structural morphology, relaxation and mechanical properties of polyethylene terephthalate glycol-acrylonitrile butadiene styrene copolymer blends

Polymer materials and technologies ◽

10.32864/polymmattech-2018-4-1-37-45 ◽

2018 ◽

Vol 4 (4) ◽

pp. 37-45

Author(s):

V. N. Koval ◽

S. S. Strogonova ◽

,S. S. Pesetskii

Keyword(s):

Mechanical Properties ◽

Polyethylene Terephthalate ◽

Acrylonitrile Butadiene Styrene ◽

Structural Morphology ◽

Styrene Copolymer ◽

Copolymer Blends ◽

Butadiene Styrene

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Insulating Composites Made from Sulfur, Canola Oil, and Wool

10.26434/chemrxiv.13464842.v1 ◽

2020 ◽

Author(s):

Israa Bu Najmah ◽

Nicholas Lundquist ◽

Melissa K. Stanfield ◽

Filip Stojcevski ◽

Jonathan A. Campbell ◽

...

Keyword(s):

Tensile Strength ◽

Canola Oil ◽

Building Blocks ◽

Atom Economy ◽

Flame Resistance ◽

Sustainable Building ◽

Second Stage ◽

Wool Fibers ◽

Insulating Properties ◽

Polysulfide Polymer

An insulating composite was made from the sustainable building blocks wool, sulfur, and canola oil. In the first stage of the synthesis, inverse vulcanization was used to make a polysulfide polymer from the canola oil triglyceride and sulfur. This polymerization benefits from complete atom economy. In the second stage, the powdered polymer is mixed with wool, coating the fibers through electrostatic attraction. The polymer and wool mixture is then compressed with mild heating to provoke S-S metathesis in the polymer, which locks the wool in the polymer matrix. The wool fibers impart tensile strength, insulating properties, and flame resistance to the composite. All building blocks are sustainable or derived from waste and the composite is a promising lead on next-generation insulation for energy conservation.

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