and the novel tetraphenol ethane ramification which is generated under an acidic condition through a condensation polymerization reaction has the preparation process and steps that the phenol (the 2-methylhydroquinone or the tertiary butyl hydroquinone), alcohol (carbinol or ethyl alcohol or isopropanol)...
The products have many advantages such as high thermal decomposing temperature, low thermofade of high temperature, low content offree phenol, good fluidity, high soakage ability for fiber and stuffing. And friction products have stable friction coefficient,high ability...
nanochitosan has altered physiochemical properties like size, surface area, cationic nature which consequently alters the biological activity6. Ability of nanochitosan in eliciting
17.Study on Degradation of Phenol-containing Wastewater in High Concentration SBR;高浓度SBR法降解含苯酚废水的研究 18.Rescarch of Ferric-Carbon Microeletrolusis Treatment on High-Density Alcohol Wastewater;铁碳微电解处理高浓度酒精废水研究 相关短句/例句 hydrolysis degree水解度(DH) 1.Hydrolysis conditions...
Interestingly, procyanidins from wild grape seed regulate the antioxidant enzymes and alcohol metabolism in Sprague Dawley (SD) rats by means of the mitogen-activated protein kinase (MAPK) pathway, which reduces the levels of aspartate transaminase, alanine transaminase, and alcohol in serum induced ...
In another exemplary composition, the viscosity modifier, resin or binder is present in an amount of about 0.75% to 5% by weight and comprises a mixture of polyvinyl pyrrolidone and polyvinyl alcohol. Another exemplary embodiment comprises: a plurality of metallic nanofibers, substantially all of ...
Vinyl acetate and butyl acrylate copolymers were synthesized in the presence of ammonium persulfate and potassium persulfate initiators, mixture of non-ionic and anionic emulsifiers, and polyvinyl alcohol as protective colloid in a loop reactor. The monomer ratio was chosen 85:15. The series of ...
The as-spun undrawn virgin fibre is treated in the relaxed state in a 3% aqueous phenol solution for 18 - 24 h during which period the processes of swelling and of the weakening of the intermolecular bonds are completed. Next, the fibre is washed in water for I h and in alcohol for ...
When using an ester of the acid, a smaller excess of glycol is sufficient and heating is usually at a temperature above the melting point of the mixture and above the boiling point of the alcohol or phenol being replaced, but below the boiling point of the glycol. When using a dihalide,...
The emulsifying agent may be polyvinyl alcohol or an ethylene oxide-nonyl phenol adduct. The dispersion may also contain a silicone, fluorocarbon, wax, long chain quaternary, or Werner complex. The treated material is dried and hydrolysis effected in water or moist air. The material treated may ...