The silane coupling agent is obtained by catalyzing the addition of trichlorosilane (HSiCl3) and an unsaturated olefin having a reactive group under the catalysis of platinic acid, followed by alcoholysis. The silane coupling agent can interact with the hydroxyl groups in the inorganic material and the long molecular chains in the organic polymer to couple two materials of different properties, thereby improving various properties of the biological material.

Silicone oil is a polyorganosiloxane withdifferent degree of polymerization and chain structure. The most commonly usedsilicone oil is methyl silicone oil. Silicone oil is generally colorless (orlight yellow), tasteless, non-toxic, non-volatile liquid. Silicone oilinsoluble in water, methanol, diol and - ethoxy ethanol, with benzene, dimethylether, methyl ethyl ketone, carbon tetrachloride or kerosene miscible, slightlysoluble in acetone, dioxane, ethanol and alcohol . It has a very low vaporpre ...

Description ofTrichlorosilaneTrichlorosilaneis an important synthesis of organic silicon intermediates, but also thepreparation of semiconductor grade polysilicon and solar cell grade polysiliconof the main raw materials.For a longtime, due to China's smaller production capacity of polysilicon,trichlorosilane is mainly used for organic silicone rubber coupling agent andother silicone materials, the amount of polysilicon is very small.Hydrogenchloride method: the method is to use metallurgical gr ...

Theaction of the defoamer is to suppress and eliminate the generation of airbubbles. In general, when the viscosity of water-based ink is toohigh, PH value is low, or when the press speed is relatively fast when it iseasy to produce bubbles, if the amount of bubbles will appear larger than thedirty version. Water-based inks generally usealkali-soluble binder, the binder material is an acidic resin alkali solution. Itis an aqueous solution similar to soap, because water-soluble binders have soapc ...

Chiral polyimideIt refers to chiral polyimide polyimidemacromolecular chains having a chiral structural unit, wherein the non-isomerShaw should spin optically active. Based on "a structure of macromoleculesshould have opposed specific properties," such a view. We study chiralpolyimide intention is hoping to find differences in performance from differentchiral structure of polyimide. We hope to develop new polymer materials withspecific properties.Optically active polymers are ubiquitou ...

Silicone insulating powder coatingSilicone insulation coatings available silicone resin or a silicone-modified epoxy resin, silicone-modified polyester film material, mainly varnishes and enamels classes, both high temperature curing type, there are also low-temperature curing type. In a wide frequency range, the dielectric constant and dielectric loss is very small, and small changes with temperature. At present, most silicone-modified epoxy resins are liquid, powder coating is difficult to mee ...

Silicone surfactants used in personal care products inSilicone products is a very special compound, has the characteristics of both organic and inorganic substances and has the characteristics. It is because of such a special formula, organic silicon products: a low surface tension, very easy to spread; low glass transition temperature; cold resistant good; good chemical stability, very safe for the skin; skin feel very smooth, not sticky. All these properties make silicone products are ide ...

Synthesis of silicone resinFirst, we hydrolysis - polycondensation step method, methyltrimethoxysilane as raw materials, the preparation of a silicone resin microballoons. From the two-step hydrolysis and condensation reaction mechanism of the reaction system PH value, oil-water ratio, whether the stirring conditions hydrolysis and condensation reactions affect the distribution and size of the microspheres was studied. Experimental results show that:1. methyltrimethoxysilane hydrolysis, PH value ...

Polyimide carbonized productAfter the polymer is carbonized in an inertatmosphere or vacuum thermal decomposition, who can break down into lowmolecular weight have become part of the structure of a gas escape, theremaining solid consisting mainly of carbon. Either in the form of amorphouscarbon, or it may be graphitized carbon. Structure and properties of carbonmaterials is determined by the structure of the intermediate product of pyrolysischaracteristics and conditions of carbonization and gra ...

Polyimide ProcessingAfter decades of development, it has alwaysheld that the concept of polyimide difficult to process should be revised.Polyimide fact already applied to most polymer processing methods.For example, by solution cast film, spincoating and screen printing; can be hot melt processing methods, extrusion,injection molding, even very low melt viscosity can be obtained prepolymertransfer molding (the RTM); you can use high solid content, preparation (PMRmethod) prepreg prepolymer solut ...