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Overview of Agricultural Silicone Surfactants: -- 2016-11-14

Surfactant BasicInformation:Pesticides andsurfactants: pesticide formulations can not be separated from the surfaceactive agent, pesticide formulations (including: EC, water emulsion,microemulsion, wet powder, soluble powder, dispersible granules, granules,etc.) Processing to add different types of surfactants.The addition of surfactants greatly reduces the surfacetension of the solution and enhances the wetting, spreading and adhesion of theagents in the plant or pest surface, thereby impro ...

Silicone resin -- 2016-11-11

Silicone resin (or silicon resin) Siliconepolymer is an important part of the Si-O-Si as the main chain, the siliconatoms associated with organic groups, with highly cross-linked semi-inorganicpolymers, it Is hydrolyzed from a polyfunctional organosilane to form asilicone prepolymer which is further crosslinked under heating or catalystcatalysis to an insoluble, non-molten solid silicone resin having athree-dimensional network structure. It may be a homopolymer of a monomer, or acopolymer of ...

Silicone oil -- 2016-11-10

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 ...

Petrolatum emulsification -- 2016-11-09

Petrolatum (Vaseline) Emulsions play a rolein many areas.The authors of this series of petrolatumstudy found that Silsurf J208-612 is the most effective emulsifier. The productseems to be able to handle various ratios of petrolatum to water. Changing theratio of petrolatum to water will result in products with very differentproperties. This technology can be extended to cover many other oils, includingisomeric hydrocarbons and esters. The efficacy of other Silsurf surfactants wasstudied using th ...

PEG-8 Dimethicone Water-soluble silicone -- 2016-11-08

The molecular weight of PEG-8 dimethiconehas a great impact on the properties of the compound as well as the wettabilityand irritation. Wettability is a key, but often neglected aspect of cosmeticformulations. If you put something in the air, applied to the skin, pigmentsand any other surface, the degree of wetting of the surface is critical to theefficacy of the formulation. For products that function correctly, it isnecessary to add low concentrations of silicone wetting agents.With the same a ...

Types of Polysiloxanes -- 2016-11-07

Many types of polysiloxane, according tothe product's chemical structure and performance can be divided into threecategories:1. Silicone oil, low molecular weight linear structural polymer. Colorlessor light yellow transparent liquid with high boiling point and low freezingpoint, thermal decomposition and particularly stable against water or oxidizingagents. Can be used as hydraulic oil, high-grade lubricants, surface treatmentand demulsifier, can also be used as textiles, paper and many other m ...

The chemical structure of siloxane -- 2016-11-04

The step of building the chemical structureof the siloxane is the process of determining the length of the polymer chain, branching,and insertion of the organic group. From the point of view of its chemicalstructure, the structural groups entering the molecule are represented by theletters M (monofunctional), D (difunctional), T (trifunctional) and Q(tetrafunctional). The M functional groups are chain terminating because theyare monofunctional; the D functional group is a linear increment, makin ...

Silicone technology -- 2016-11-03

Siloxane compounds were well known in the1960s, but it was not until the 1940s that Dr. Eugene RoChow pioneered the workof commercializing such important compounds. The chemical nature of siloxanesallows polymer chemists to build accurate molecular structures using idealnanotechnology. The siloxane polymer is derived from silica (Si02), whichaccounts for 25% of the total crust. In the presence of a carbon source, thesilica is converted to a siloxane at elevated temperatures. The resulting metali ...

Physical and chemical properties -- 2016-11-02

Polydimethylsiloxane chemical stateDimethyl silicone oil, colorless or light yellow liquid, odorless, hightransparency, with heat resistance, cold resistance, viscosity with temperaturechange is small, waterproof, surface tension is small, with thermalconductivity, thermal conductivity of 0.134-0.159W / M * K, light transmittanceof 100%, dimethyl Silicone oil non-toxic and tasteless, with physiologicalinertia, good chemical stability. Electrical insulation and weatherability,hydrophobic, and has ...

The role of polysiloxane -- 2016-11-01

There are few silicone-free compounds inthe new cosmetic formulations, and the use of silicone compounds in personalcare products has achieved significant growth. In addition, even with the mostadvanced technology of the formulator, still inevitably use siloxane.Silicone polymers consist of differenttypes of compounds, including conventional silicone oils, water-solublepolymers, oil-soluble polymers, fluorine-soluble polymers, and polymers withvarious solubility. They exist in a variety of forms ...

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