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Derivative reaction -- 2017-11-23

Derivatization of polysiloxanesThe final action to be considered is thederivatizing reaction. In this step, the reaction group added to the functionalaction step is further reacted to give a new compound, and the reaction of thehydroxyl group with the polydimethylsiloxane copolymer polyol is an example ofsuch a reaction. In fact, a series of surface-active siloxanes, comparable to alarge number of standard surfactants, have been developed and marketed.Silicone esters are an excellent example of ...

Reduce the surface tension of the coating to eliminate surface tension differences -- 2017-11-22

Leveling agent principleSurface tension is the main driving forceof coating leveling, but the surface tension difference, but it is the maincause of surface defects. To improve the surface tension of the coating toachieve the surface tension balance, which is the flow of the coating andleveling is very useful, but it can’t. So people had no choice but to reducethe surface tension of the coating to eliminate surface tension difference,control the surface state of the coating to eliminate surface ...

Powder solid defoamer -- 2017-11-21

Powder solid defoamer usePowder solid defoamer can be used for metalcleaning agents, electroplating cleaning agents, alkaline degreasing agents,high-grade spray, metal wire drawing fluid, flux, ultrasonic cleaning agent,alkaline degreasing agent, washing detergent bowl, beer bottle cleaning agents,powder cleaning agents, chemical cleaning agents, cutting fluid, industrialcleaning agents, civilian detergents, powdered detergent, powder detergent,electrolysis water treatment, starch, paper / pulp, ...

Compounding is one of the development trend of defoamer -- 2017-11-16

Development of defoamersRecently, researches on defoamers havefocused on the compound of organosilicon compounds and surfactants, thecompound of polyether and organosilicon, the combination of water-soluble oroil-soluble polyether and silicon-containing polyether, etc. Agent, thecompound is one of the development trend of defoamer. At present defoamers,polyether and silicone defoamer performance is the most excellent, these twotypes of defoamer modification and the development of new varieties o ...

Reduce surface tension -- 2017-11-15

Polysiloxane type defoamerPolysiloxane defoamer with defoamingrapidly, anti-foam for a long time and safe non-toxic and so on. But it isinsoluble in water, high temperature, alkali resistance is poor, polyetherdefoamer high temperature, strong alkali resistance, but its defoaming speedand suppression bubble time are not ideal The polyether chain is grafted intothe polysiloxane chain through the condensation technology, which has theadvantage of the second kind of antifoaming agent, and becomes a ...

Two chemically different groups -- 2017-11-14

Molecular structure of coupling agentCoupling agent is an important, widely usedin the field of treatment agent, mainly for polymer composites additives. Themost important characteristic of the molecular structure of the coupling agentis that the molecule contains two groups with different chemical properties.One is a group of pro-inorganic, easily with the inorganic surface of thechemical reaction; the other is the pro-organic groups, and synthetic resin orother polymer chemical reaction or hyd ...

Adhesives and coatings features -- 2017-11-09

Some of the main functions of the couplingagentGlass fiber reinforced plastic: Improve thephysical and mechanical strength of the composite wet, wet electricalperformance, and improve the glass fiber cluster, protection and processingtechnology.Adhesives and coatings: Improve the wetadhesion, weatherability, improve pigment dispersion, improve wear resistanceand resin crosslinking.Casting: Improve the strength of resinsand. To achieve a high degree of low gas evolution.Rubber: Improve product me ...

Coupling agents can also improve the wet sealant adhesion -- 2017-11-08

Coupling agent is very common in our liveschemical raw materials. In plastic compounding, the coupling agent is toimprove the synthetic resin and inorganic filler or reinforcing materialinterface properties of a plastic additive, coupling agent, also known assurface modifier. It can reduce the viscosity of synthetic resin melt in theplastic processing, improve the dispersion of filler to improve the processingperformance, thus enabling the products to obtain good surface quality andmechanical, t ...

Improve the performance of biological materials -- 2017-11-07

Silane coupling agent is a kindof special structure of low molecular weight organic silicon compounds. The general formula for RSiX3, where R representsamino, mercapto vinyl, epoxy, chloropropyl, cyano and methacryloxy groups andother groups. These groups and different matrixresins have a strong ability to react, and x represents a hydrolyzable groupsuch as halogen, alkoxy, acyloxy and the like. Silane couplingagent is trichlorosilane (HSiCl3) and with reactive groups of unsaturatedolefins in th ...

As a foliar absorption aid -- 2017-11-06

Agricultural Silicone surfactants used inpesticideAs a spray conditionerVan Valkenburg had to pesticide chemicalsare divided into two categories: Spray improvers and activators. In general,the silicone surfactants are mainly belong spray modifier. Because of theirvery strong activity, sometimes used as an activator. Using a siliconesurfactant can increase the capacity of spray liquid is absorbed through leafstomata, Thus it is necessary to spray in their characteristics were studied.As a foliar ...