5 results about "Sodium Polystyrene Sulfonate" patented technology

This invention discloses a novel method for preparing a clean fuel additive, relating to the field of clean fuel additive technology. Its components include: a main cleaning agent: Mannich base; a dispersant: polyetheramine; a surfactant: highly active polyisobutylene; an antioxidant: N,N-di-sec-butyl-p-phenylenediamine; an octane booster: dimethyl carbonate; a solvent: 120# solvent oil; a combustion improver: C9-C11 mixed olefins; a stabilizer: trimethylolpropane; an ignition promoter: nitrobenzene; and auxiliary additives: n-dodecane, sodium polystyrene sulfonate, and eugenol methyl ether. This invention achieves a significant synergistic effect among the core components such as Mannich base, polyetheramine, polyisobutylene, amine antioxidants, and dimethyl carbonate. This synergistic effect allows the additive to comprehensively optimize the cleanliness, anti-knock properties, stability, and combustion efficiency of fuel at a relatively low total addition amount.

According to a first aspect, the invention relates to a process for the production, preferably continuous, of calcium sulfate alpha hemihydrate, the process comprising: - the preparation of an aqueous gypsum suspension comprising gypsum in particulate form, water and at least one superplasticizing polymer selected from phosphate polyethers, sulfonated melamine formaldehyde (SMF) and sodium poly(styrene sulfonate); - the calcination of the aqueous gypsum suspension at a suitable temperature and pressure to obtain a suspension of calcium sulfate alpha hemihydrate; - optionally, the filtration of the calcium sulfate alpha hemihydrate suspension to separately obtain a concentrated alpha hemihydrate suspension and an aqueous filtrate.The invention also relates, according to a second aspect, to a process for preparing a gypsum-based product comprising the preparation of a plaster suspension comprising calcium sulfate alpha hemihydrate obtained by the process according to the invention. Furthermore, the invention relates to a plaster-based product obtained using a process according to the invention. The invention also relates to a gypsum-based product obtained using a process according to the invention, such as a plasterboard. Figure 2.

This invention discloses a lip mask composition and its preparation method. The lip mask composition comprises a film-forming agent, a thickener, an emulsifier, oil, and water. The film-forming agent comprises polyvinyl alcohol with a viscosity of less than 35 mPa·s, sodium polystyrene sulfonate, and *Pteris vittatum* polysaccharide. The thickener comprises sodium alginate and lithium distearate dimethylammonium montmorillonite. During preparation, an oil phase and an aqueous phase are prepared separately. Sodium alginate is added to the aqueous phase, and then the oil phase is added to the aqueous phase. After homogenization, lithium distearate dimethylammonium montmorillonite is added, followed by homogenization and defoaming. This lip mask composition has a novel user experience, a noticeable immediate visual effect (the appearance of the lip mask can be observed to change), and a long-lasting effect. After the film is formed, it can be peeled off completely, which can reduce the evaporation of skin moisture and help the moisturizers in the formula to gently penetrate into the stratum corneum without irritating the skin barrier. After peeling off the film, old keratin on the lips is removed, leaving the lips feeling refreshed, breathable, and non-sticky. It immediately improves dry lips and brightens lip color after use.

The invention discloses sodium polystyrenesulfonate modified chitosan as well as a preparation method and application thereof, and relates to the technical field of biomedical materials. The modified chitosan provided by the invention can generate far better adsorption capacity with the histone by virtue of weak amino positive electricity, so that the adsorption of the chitosan on the damage-related molecular mode of the histone is realized, and the long-standing technical bottlenecks of poor selectivity, low efficiency and the like in the field of histone separation and adsorption are solved; and the preparation method is simple and high in biological safety, and has relatively strong technical frontier and market application potential.

The invention belongs to the technical field of high polymer materials, and particularly relates to a preparation method and application of a PEDOT / PSS polymer. According to the PEDOT / PSS polymer provided by the invention, EDOT is taken as an initial raw material, a peroxy acid solution or a heteropolyacid solid is taken as a catalyst, sodium polystyrenesulfonate is taken as a doping agent, a stearate surfactant is taken as a dispersing agent, dimethyl carbonate is taken as a reaction solvent, and chemical oxidative polymerization is carried out under a stirring condition to obtain the PEDOT / PSS polymer. The method provided by the invention has the advantages that the reaction is rapid, the reaction time is short, the temperature condition is easy to control, the post-treatment is simple, the polymer yield and the conductivity are high, and the like, and through detection, the conductivity of the obtained PEDOT / PSS polymer is up to 458 S.cm <-1 >.