Surfactants are now used not only in herbicides but in all forms of pesticides. Surfactants can be used to make pesticide preparations that can not be used directly. As a pesticide additive applied to pesticides, it can not only improve the use effect of pesticides, but also reduce the amount of pesticides, reduce the impact of pesticides on the environment, and bring great benefits to agricultural production. However, since pesticides are a class of special chemicals with strong biological activity, and their control objects, protection objects and environmental conditions are very complex, the surfactant in pesticides must be selected and formulated according to the nature and characteristics of the original drug, but also consider the impact of the surfactant itself on the target organism. The following highlights the guidelines for the use of three surfactants. Solubilizer Using the micelle action of surfactants, the solubility of the insoluble agent in the solvent is significantly increased, which is solubilization. Surfactants with HLB=15-18 can be used as solubilizers, but only when the concentration of solubilizers is higher than the critical micelle concentration. At this time, the insoluble drug is contained or adsorbed in the rubber by the lipophilic group of the solubilizer, the hydrophilic group of the solubilizer is in water, and the non-polar drug is soluble in water. Dispersant Dispersants can hinder or prevent the aggregation of solid or liquid particles in the dispersion system, and keep them uniformly dispersed for a long time. The dispersant is adsorbed at the oil-water interface or on the surface of solid particles, forming a charge or steric barrier around the particles, which helps to prevent the re-aggregation of pesticide particles during mixing and storage. Generally used as a dispersant is a polycyclic anionic surfactant, such as alkyl naphthalene sulfonate and naphthalene sulfonate formaldehyde condensation of sodium salt, lignosulfonate, etc. Polymer dispersants (such as sodium polycarboxylate) are particularly important in the preparation of aqueous suspension because of their adsorption properties and their ability to charge dispersed particles and have large spatial barriers. Suspoemulsion(SE) The mixed dosage form is popular because it is convenient and ensures that users use the correct amount of various pesticide ingredients, while avoiding the inhomogeneity that usually occurs when mixing in barrels. It uses a solid pesticide of insoluble water and another liquid pesticide of insoluble water to prepare a suspended mixed dispersion solution by relying on surfactant as the medium of water, which can generally be regarded as a combination of SC and EW. The commonly used surfactants mainly include emulsifiers, dispersants and thickeners. The flocculation of particles and oil droplets in SC and EW formulations is not only a problem, but also a wide range of cold and hot storage tests are necessary.

Water based adhesive Water-based adhesive refers to the water-soluble polymer dissolved into appropriate concentration of aqueous solution, or insoluble polymer dispersed into micro-particles (emulsion) in water with the help of surfactant in the general term of adhesives;In simple terms, adhesives made of materials that can be dispersed or dissolved in water are aqueous adhesives and are often referred to as water-based adhesives. classification Water-based adhesives can be divided into the following categories: 1. Aqueous solution, such as starch or dextrin, cellulose and protein natural adhesives, polyvinyl alcohol, phenolic resin, urea-formaldehyde resin, melamine resin and other synthetic adhesives; 2. Emulsion or water dispersion, such as PVAc, EVA emulsion, polyacrylate emulsion, epoxy resin emulsion, butylbenzene, nitrile, neoprene latex, polyurethane emulsion, etc. 3. Aqueous dispersion, such as water-based reclaimed rubber or butyl rubber, etc. Application area Automobile industry: With the development of automobile industry, the relationship between automobile and adhesive is more and more close. Firstly, the "three leaks" (air leakage, rain leakage and dust leakage) of the car are solved, and the comfort of the whole car is improved. Secondly, it not only plays the role of heat insulation and vibration reduction, enhancement of automobile structure and interior and exterior decoration, but also simplifies the automobile manufacturing process, and plays a more and more important role in automobile energy saving and consumption reduction, lightweight and extension of service life. Therefore, the amount of adhesive on the car is increasing. Packaging industry: in our country's flexible packaging industry, the proportion of water-based adhesives is still relatively high. In the past, solve-based adhesives were used, but there are serious organic solvent volatilization and residue problems in solve-based adhesives, which not only pollutes the environment, but also has a variety of health and safety risks. Today, when the green wind swept through the whole packaging and printing industry, the industry turned its attention to more environmentally friendly water-based adhesives and solvless adhesives, especially the water-based adhesives gave high hopes. Construction industry: in the internal structure decoration, there are many building materials in the process of manufacturing and production also need to be used. At present, in order to solve the problems of pollution and the key to the human body, the construction field has gradually begun to use more environmentally friendly water-based adhesives. Footwear industry: With the human pursuit of environmental protection and health and environmental protection policy requirements, ool-based adhesive because of a large number of volatile solvents, with heavy odor, sensitization, environmental pollution, toxic components and other shortcomings, non-toxic, pollution-free, environmentall...

Water-based viscosifying emulsion plays a very important role in water-based acrylic pressure sensitive adhesive, which can improve the bonding strength and initial adhesion of pressure sensitive adhesive on high and low energy surfaces, so as to achieve the best balance point, and can improve the application range and grade of pressure sensitive products. Today, we will take you to understand the application of water-based viscous emulsion in water-based pressure sensitive adhesive. The adhesive emulsion plays a very important role in the pressure sensitive adhesive. It has a significant effect on the improvement of the peeling strength and initial viscosity of the adhesive. Depending on the adhesive polymer, different tackifying emulsions should be selected. Aqueous rosin viscosification emulsion is a rosin modified emulsion dispersion with 55% high solid content, 100% solvent free and APE free. It has a very narrow particle size distribution interval and a small average particle size, which is used to improve the adhesive properties of waterborne pressure sensitive adhesives/adhesives.It has excellent low foamability, storage and mechanical stability. It has excellent compatibility with common polymers such as acrylic acid, SBR and NR. Water-based adhesive emulsion is used for pressure sensitive adhesive, paper adhesive, industrial tape, film adhesive and other water-based adhesive. Best Products TK series water-based viscosifying emulsion I.Overview This series of products are made of modified rosin polyester and polymer surfactant as raw materials, and emulsified by special homogenization process. The products and the preparation process do not use any organic solvent, which is a green water-based tackifying agent. Due to the use of polymer emulsifier, it has a significant viscosity effect and a wide range of compatibility, can be widely used in all kinds of water-based adhesives to increase viscosity or thickening. II.Characteristics 1.Unique polymer surfactant, making the product viscosity effect is significant, good compatibility, wide compatibility, suitable for many varieties. 2.Special emulsification process, narrow particle size distribution, stable quality, long storage period. 3.Rosin modified polyester can be suitable for a wide PH value, can be used in near neutral or weak alkaline conditions. 4.Low surface tension, small foam, uniform coating. 5.After addition, it can significantly improve the initial viscosity value, holding viscosity, peeling strength, and make it reach the best balance point. 6.The preparation uses water as solvent, does not contain any organic solvent, green and environmentally friendly. III.technical indicator Appearance: White emulsion pH：6-8 solid content：50~55 % Particle size: ≤0.5μm Ionic type: anion Stability (25℃) : three months Hard water resistance: stable in hard water IV.Hard water resistance: stable in hard water 1.Acrgeic: mutual tolerance 2.Styrene-butadiene rubber (SBR) : mutual tolerance 3.Chl...

Printing ink according to the plate type is mainly divided into relief ink, lithographic ink, gravure ink, screen printing ink four categories According to its own characteristics can be divided into two categories of water-based ink and oily ink So what is water - based ink and oil - based ink? What's the difference? Usually see a lot of books, albums and other paper printed matter are used what ink? 1.Water-based ink and oil-based ink concept Water-based ink Water-based ink is referred to as water ink, is a kind of water-soluble ink, flexible version of water-based ink is also known as liquid ink, it is mainly made of water-soluble resin, organic pigments, solvents and related additives by complex grinding processing. Oil-type Ink Oil-based Ink (Oil-type Ink), also known as oil-based ink or oil-based ink, is a kind of pigment particles dispersed in non-polar connectors and non-polar solvents in the ink. It is mainly composed of pigment particles, non-polar binders and non-polar solvents. 2.The difference between water-based ink and oil-based ink The biggest difference between water-based ink and oil-based ink is that the former can melt in water, and the latter can only melt in specific organic solvents.Therefore, water-based ink can be diluted with water, the benefit is no organic solvent, reduce solvent volatilization, can prevent air pollution, does not affect human health, not easy to burn, belongs to environmental protection ink. Oily ink can be diluted with organic solvent, can be absorbent surface and non-absorbent surface printing, printing is not easy to fade, the use of ink more economical, effective cost savings. In addition, oil-based ink also has environmental protection oil-based ink, no need to dissolve can be jet code. 3.the application of water-based ink and oil-based ink Application Water-based ink is characterized by low price, good adhesion after printing, quick drying, strong water resistance, coupled with it does not need organic solvents, especially received health requirements of the industry favor, such as especially suitable for tobacco, alcohol, food, beverages, drugs, children's toys and other strict sanitary conditions of packaging and printing products Oil-based ink is characterized by large ink viscosity, fast drying, water resistance, soft, light resistance is quite good, ink is more economical, effective cost saving. In addition, there are now environmental protection, so the application is also quite extensive, such as often used in books, albums and other paper substrates printing, in addition, there are metal, plastic, wood, aluminum foil, carton and building materials and other materials printing. Raw material of ink. Widely used in environmental water-based ink, flexo printing ink, UV gloss, water-based glazing oil. Whether it is printing or edible marking ink, or high-end paint such as car paint and refrigerator paint,Our company can provide this material Water-based acrylic emulsion  is a high-perfor...