It relates to an antisolvent precipitation technology, first dissolved in an organic solvent, then precipitated in the presence of a stabilizer. In the past 20 years, the inorganic nanoparticles have been successfully prepared by a precipitation method, and the organic nanocrystals are studied by the upward approach. The precipitation method is successfully applied to the preparation of inorganic nanoparticles for a long time. In the past 20 years, the organic nanocrystals conducted a lot of research based on the upward approach.UV Absorber UV-1 manufacturer  Nanchang water-resistant stabilizer price, welcome to call applicability: low foam is suitable for spray cleaning machine, and is also suitable for ultrasonic cleaning machine circulating cooling water. Commonly used oxidants are: chlorine-containing compound, peroxide, bromine contamination, etc. Eight bacteria such as oxygen bacteria, anaerobic sulfate reducing bacteria. The main component of the aquifer concrete sealing maintenance agent is an alkaline silicic acid compound. Taking the lithium-based concrete sealant as an example, its main component is lithium silicate. In addition to the main material of silicate, the actual formulation of concrete sealing conservation will also add a wetting dispersant, an antifoaming agent, an anti-heating agent, a stabilizer, an accelerator, water, etc. related chemical active substances and complexes, and then Unique catalyst high temperature emulsification. As can be seen from the above analysis, the precipitation of the liquid stabilizer is closely related to the organic solvent, organic acid, metal concentration, etc. Acid, generally unnecessary, should also exceed 100 degrees! The lead compound does not damage the excellent electrical properties, low water absorption and outdoor weather resistance of the polyvinyl chloride material. However, lead stabilizers are defective; cross-contamination, especially sulfur-related pollution; lead-forming lead, forming stripes on finished products; proportion is very large, resulting in weight / volume. Lead stabilizers often make the polyvinyl chloride products are opaque and rapidly discolored after continuous heating. Composite lead saline stabilizer: good thermal stability, good function, disadvantage is toxic and not environmentally friendly, poorly dispersible, difficult to maintain excellent physical properties. Manufacturers will produce stabilizers of different lead content according to different purposes (PVC hard products, pipes, profiles, sheets; soft cable materials, hoses, etc.) The lead content of composite lead salt stabilizers in wood plastic production is not It is less than 30%. In order to process composite lead saline stabilizers, some slide agents (stearic acid, paraffin, PE wax) are needed. Oxidized polyethylene wax or the like.Ultraviolet Absorber UV-1 factory Ethyl 4-[[(methylphenylamino)methylene]amino]benzoate supplier  ) Used to produce wood plastic foaming. It is best to add polyethylene wax, which is conducive to the adjustment of the formulation, does not affect product quality (good lubricity). The amount of use depends on the processing method and the new old, the size of the screw and the quality of the stabilizer, generally add 4-5%. Cannot be used in transparent products, vulcanization pollution, cannot be used. Composite metal soap stabilizers typically include stabilizer main body (i.e., metal soap), solvent (organic solvent, plasticizer, liquid non-metal stabilizer, etc.), function additive (auxiliary stabilizer, transparent modifier, light stabilizer, lubricant Wait). According to the form, a solid composite and a liquid complex can be divided. According to the main ingredient, it can be divided into calcium / zinc composite stabilizer, barium / blessing composite stabilizer, barium / zinc composite stabilizer. Among them, calcium / zinc composite stabilizers play an important role in replacing toxic metals due to non-toxic. The main function of the light stabilizer is: shield light, absorption, and transfer light energy, suddenly extinct or captured free radicals. Light stabilizers are generally divided into four categories: light shield (titanium white powder, carbon black), ultraviolet absorber, quencher and gamlamine light stabilizer. Polyvinyl chloride soft plastic articles generally use ultraviolet absorber + gamlamine light stabilizers. Antioxidants are moderately improved product exposure to heat resistance in the sun, and can use phosphite and antioxidant antioxidants. The main products of the antimony hot stabilizer are liquid thiol thermal stabilizers, which can be used singly or alone. The thiol is bismuth thermal stabilizer is approved by the International Health Foundation NSF for drinking water pipes. The highly light stabilizer of thiol is poor, odor is only lower than the organotin stabilizer. The inorganic dispersion stabilizer CrosFect 3600 is a polymeric dispersant designed for inorganic silicate coating. It has a particular structure that greatly improves the stability of the inorganic coating, with a function of dispersing and stable, with hydrophilic and hydrophobic function groups. The inorganic coating provides good water resistance, fluidity and excellent coloring. The dose is generally 2 to 10 ‰ of the total coating mass.

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