Membrane color and gas permeability of 6FDA-TeMPD polyimide membranes prepared with various membrane preparation protocolsThe relations among polyimide membrane colors, their gas transport and separation properties, and their fluorescence spectra were systematically investigated using fluorine-containing aromatic ...
· Elution of fluorine ions is minimal (equivalent to a PFA-HG tube).· The inner surface of the tube is smooth (Equivalent to a PFA-HG tube). Outer Dia. D(Ø) Inner Dia. d(Ø) Material Applicable Fluid Color Type Operating Environment O.D. [Distinction] Cutting Service Usage ...
Sign up No reviews yet Hebei Zunyan Technology Co., Ltd.2 yrsCN Other recommendations for your business Key attributes Industry-specific attributes Processing Service Moulding, Cutting, Injected Plastic mold Other attributes Place of Origin Hebei, China ...
Q1:What are the types of your steel window and door profiles? 1.Profile Type: Carbon Steel,Stainless Steel; Cold Rolled Steel,Galvanized Steel. Steel with thermal/non-thermal break profile. 2.Profile Finish: Hot Dipped Galvanized,Powder ...
Fig. 4: Mechanism and applications of the color-tunable CPOA molecules. Full size image Universality of the strategy To testify the universality of this chiral clusterization strategy in constructing single-component color-tunable CPOA materials, other two pairs of enantiomers of (R, R)/(S, S)-...
• No CFC, HFC, HCFC or other materials containing fluorine, also no formaldehyde, dust or fiber The rubber plastic insulation board has excellent fireproof performance. According to international GB/T17794-1999(Division Methods of construction material burning performance)...
Typically, fluorine chemistry, preferably a chlorofluorocarbon such as Freon, is used during reactive ion etching. Freon reacts vigorously with quartz and very slowly with the photoresist thereby producing a very high etching differential and causing the vertical spacing of the steps to be enlarged....
A cerium-based abrasive and a production method of the cerium-based abrasive excellent in polishing properties of a high polishing speed and scarce formation of polishing scratches are provided by keeping the color of the abrasive in specified ranges or stably making fluorine be contained in the ab...
PROBLEM TO BE SOLVED: To provide a water-color ink composition that has a wide range of utility and can obtain good writing performance by using a specific compound that can chemically remove the gas included in the ink, and provide writing utensils that have the water-color ink composition ...
(Tm) and 0.1% of fluorine (F), a 0.2 um-thick green luminous layer 6b of zinc sulfide containing about 1% of erbium (Er) and about 1% of fluorine, and an about 0.2 um-thick red luminous layer 6c of zinc sulfide containing about 1% of samarium (Sm) and about 1% of fluorine, a ...