With the continuous improvement of people's demand for life, glue and adhesive products are also advancing with The Times and constantly upgrading to meet people's needs. The emergence of removable glue greatly satisfies this phenomenon, so what is removable glue? What are the characteristics of removable glue? Removable adhesive is a new type of environmentally friendly synthetic material, the application of a new technology, because of its environmental protection and random tear paste characteristics by the masses like, to a large extent, gradually replaced the ordinary double-sided adhesive. Removable glue is a kind of premolded small glue, ultra-thin glue, elastic glue, can move at will, leaving no traces of single-sided or double-sided glue. It is different from the traditional adhesive supplies, has been designed and made according to your requirements of the glue specifications, size, shape, you just start to paste the two products butt can be. Removable glue features: Name: Removable glue, non-trace glue, washing glue, foam non-trace removable glue, etc. Material: Synthetic rubber. Stickiness: strong stickiness, enough for daily life, like no mark hook, etc. Removable adhesive performance: 1.Can move freely, paste freely, repeat paste; 2.Do not leave any traces, repeated paste and separation will not leave any traces on the surface and objects. 3.Can be washed with water, paste surface has dust or other dirt, can be washed with clean water, after drying to maintain the original viscous effect. 4.Office stationery gift industry: removable signage, removable puzzle, removable adhesive paper, removable foam tape, removable double-sided tape, stationery assembly, toys, gifts, arts and crafts, billboard bonding, signage paste, announcement removable paste; 5.Daily necessities industry: no mark hook, removable refrigerator paste, bathroom products bracket fixed, removable toilet mat, wedding car decoration, adhesive mirror, photo wall decoration, wall decoration painting; 6.Space vehicle and ship industry: automotive advertising stickers, automotive decoration stickers, automotive side trim, stainless steel tank cover, pedal, brake lights, signs, bumper anti-collision board, sealing strip, auto parts fixed; 7.Construction field: removable wood floor, removable floor tiles, removable wall decoration, doors and Windows, glass, wall, aluminum curtain wall, elevator wall board installation and fixation, safety glass bonding, elevator advertising without trace paste; 8.Craft jewelry industry: glass surface decoration paste, glass explosion-proof paste, jewelry fixed paste; 9.Hardware machinery industry: drawing paste, tool paste, industrial logo, sign paste, PC, PP and ABS and other materials of the letter, pattern bonding fixed, fixed nameplate. In addition to the range listed above, it can also be used in different materials, and is the first choice for many electronics and packaging industries. Sinograce Chemical Co., Ltd. has advanced testing a...

Environmental protection pressure has prompted some traditional solvent-based products to gradually withdraw from the market and replace them with water-based, high solid content, powder products, etc.Waterborne polyurethane, as an important member of waterborne products, is facing unprecedented development opportunities with its unique excellent properties.In addition to the leather industry, it is used in textile finishing, coatings, medical materials, glass fiber, plastic parts, automotive interior parts, card production and other industries.The research topic related to waterborne polyurethane is becoming a hot topic in recent years. There are more and more research projects related to waterborne polyurethane, and more and more scientific research institutions and universities are participating in the exploration. Their work is mainly reflected in the following aspects.There are more and more research projects related to waterborne polyurethane, and more and more scientific research institutions and universities are participating in the exploration. Their work is mainly reflected in the following aspects. Crosslinked modified waterborne polyurethane is mostly linear structure, its water resistance, solvent resistance and heat resistance is relatively poor, the introduction of crosslinked structure, can be effectively improved.According to the internal crosslinking method, partial branching and crosslinking structures can be formed by introducing three functional compounds.This kind of method can improve the performance of the film, its main disadvantage is that the molecular weight of the prepolymerization is large, resulting in emulsification difficulties, difficult to produce water-based polyurethane with high solid content, so the drying performance is relatively poor. The more feasible is to use the diplomatic association method, although the method is more troublesome in application, but it is really effective, and can significantly enhance the drying speed, and the improvement of performance is especially obvious.In which the key cross-linker cured at room temperature is water, which can disperse polyisocyanate and polyaziridine. In recent years, there are many researches on water-dispersible polyisocyanates, but not many have been published. Some domestic manufacturers are trying to launch, but the performance stability needs to be improved. Another kind of crosslinked modified product is closed waterborne polyurethane. The synthesis of this type of product is difficult to control, and the products produced are not stable, but it will be a key direction in the future, especially in the textile function finishing, paint printing and other industries have great room for display.

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...