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  • Nonionic surfactants have excellent washing properties

    2020-03-26 14:20:27
    The surfactant can form hydrophobic groups on the surface of the fiber to adsorb outwards, reduce the dynamic and static friction factors of the fiber material, so as to obtain a smooth and soft feel. Generally, surfactant and oil are always used together. Surfactant can effectively reduce the static friction coefficient of fiber material, while oil can reduce the dynamic friction coefficient of fiber material.
  • After adding alkyl glycoside surfactant into aquaculture water

    2020-03-24 16:25:53
    Oxygenation principle of surfactant: the saturated solubility of oxygen in aquaculture water can be increased by adding alkyl glycoside surfactant. According to hydrate formation theory and bimembrane theory, due to the low solubility of oxygen in water, water oxygenates in water generally form at the gas-liquid interface first, and then slowly diffuse from the gas phase to the liquid phase. Due to the solubilization of surfactants, a large amount of oxygen is dissolved in the surfactant micelles formed in the aqueous solution, so that the formation of water oxygenate in the surfactant aqueous solution can not only occur at the gas-liquid interface, but also in the water body, reducing the formation time of water oxygenate, and improving the oxygen in the water body Solubility in.
  • Attention should be paid to the compatibility of surfactants in use

    2020-03-22 13:43:04
    The compounding and Synergistic Technology of surfactants in our country is relatively backward, so we should strengthen the research on the basis and application technology in this field. The technology of multi-functional synergism, solubilization, emulsification, dispersion and anti caking should be paid more attention. Compounding technology is also the key to promote the application of special surfactants in leather making. The results show that the emulsification, dispersion and wettability of surfactants can be improved by adding 10-6 grade special surfactants.
  • What are the capabilities of anionic surfactants in practical applications?

    2020-03-20 16:21:56
    In addition to being used as antistatic agent and smoothing agent, anionic surfactant can also be used as wetting agent. Succinate sulfonate is a good wetting agent. Adding this kind of surfactant into the oil agent can improve the affinity of the oil agent to the fiber, so that the oil can be evenly applied, and the oil application rate (o.p.u) can be increased as required. A series of products can also be produced with different carbon chains of R group and different EO number. However, the commercial penetrant ot (aerosol OT) is commonly used. The surface activity of OT is still strong, and its interface ability to mineral oil can reach 5.86 (mnm-1) at 0.1% concentration. However, it should be noted that when the product is mixed with other ionic and non-ionic surfactants, it is easy to make the mixture unstable, so in practical application, it should not be added as much as possible on the basis of achieving the osmotic wetting ability. Or it can be used together with other non-ionic surfactants with strong wetting ability to meet the requirements of oil agent function.
  • What are the effects of amphoteric surfactants in oil?

    2020-03-18 10:26:18
    Cationic surfactants are widely used in oil agents, such as amines (fatty amines and quaternary ammonium derivatives), which can be used as emulsifiers, antistatic agents and bactericides. High carbon alkylamine derivatives also play a strong role in the bunching of oil agents. The commonly used fungicide "jieermiao" (alkyl, benzyl, dimethyl quaternary ammonium hydrochloride) is the derivative of quaternary ammonium salt.
  • The function of surfactant in green detergent

    2020-03-16 14:16:48
    Green detergent is the development direction and the general trend. It is the historical mission of daily chemical industry and the lofty responsibility of engineers and entrepreneurs to develop and promote green detergent for the benefit of the country and the people. The development of green detergents may not be in harmony with the immediate economic benefits, but it should be focused on sustainable development and future generations. On the other hand, the government should encourage the development of green detergents, and give preference to tax policies and scientific and technological funds. In addition, the daily chemical industry should vigorously promote the advantages of green detergent through various channels, and actively guide green consumption.
  • How to analyze the phosphorus content and decomposition temperature of red phosphorus flame retardant?

    2020-03-14 11:42:15
    How to analyze the phosphorus content and decomposition temperature of red phosphorus flame retardant? How to analyze the phosphorus content and decomposition temperature of red phosphorus flame retardant? With the development of synthetic material industry, the improvement of laws and regulations, and the enhancement of people ' The development and modification of flame retardant have become the main trend of flame retardant.
  • What are the characteristics of different types of surfactants?

    2020-03-12 10:26:54
    The adsorption of chemical surfactants on soil is stronger than that of biosurfactants, so biosurfactants can effectively transfer the oil in soil, and biosurfactants are easy to be biodegraded by indigenous microorganisms in the process of remediation of oil contaminated soil in situ. Chinese style
  • What are two types of medical silicone rubber in application?

    2020-03-10 16:20:07
    With the deepening recognition of medical materials used in medical devices industry, the unique special properties of liquid silicone rubber expand its application range. With these characteristics being more widely known, new applications and expanding markets are driving the application of liquid silicone rubber in medical devices more widely.
  • What precautions do flame retardant materials need in application?

    2020-03-08 11:41:42
    Thermosetting resin thermosetting resin includes epoxy resin, phenolic resin, polyurethane, unsaturated polyester resin, etc. This kind of resin needs multi-component blending when it is applied, so the flame retardant can be added at the same time and mixed evenly by rapid stirring. After mixing, the curing reaction is carried out at a certain temperature. After curing, a thermosetting resin material with flame retardancy can be formed.
  • What may happen in the application of magnesium hydroxide flame retardant?

    2020-03-06 11:05:26
    Rotaru et al. Synthesized a new polyether polyol with high nitrogen content and good thermal stability by using Mannich, two ethanolamine, paraformaldehyde, cyanuric acid and propylene oxide. The PUF foam was prepared by Mannich polyol. The results show that because of the existence of isocyanide ring in the PU foam system, the PUF foaming by the Mannich polyol has better mechanical strength, and has better thermal stability and higher flame retardant efficiency than the traditional aliphatic PU foam system.
  • An ideal flame retardant can satisfy those conditions

    2020-03-04 15:21:39
    According to the relationship between the flame retardant and the flame retardant, the flame retardant can be divided into additive type and reactive type. The former is only physically dispersed in the substrate and is mostly used in thermoplastic polymers. The latter, as a monomer or auxiliary reagent, participates in the synthesis of polymers, and then becomes the structural unit of polymers, mostly used for thermosetting polymers.
  • What are the application fields of alkyl polyglycosides?

    2020-03-02 10:52:38
    Alkyl polyglucoside shampoo is a necessary daily chemical for people's daily life. It is an important personal cleaning product. It may even enter the eyes in the process of hair washing if it is in close contact with the skin. Therefore, it has a very high requirement for the mildness and safety. At present, most of the products on the market use sulfuric acid ester salt as foaming agent, silicone oil as smoothing agent and quaternary ammonium salt as germicide and dandruff remover. These three substances have certain irritation to the eyes. If they are inadvertently put into the eyes during the shampoo process, they will bring foreign body or tingling to the user, especially It is sensitive to mucous membrane. Dry and swollen eyes may appear after use, which seriously affects the feeling of use.
  • What are the development and application prospects of alkyl polyglycosides?

    2020-02-29 10:50:25
    Alkyl polyglucoside is white powder, and the actual product is cream or light yellow, which has no obvious melting point. Soluble in water 'glycol' pyridine, insoluble in general organic solvents, the solubility in water decreases with the extension of alkane chain, and increases with the increase of degree of polymerization, so the solubility at room temperature is large, which has no effect on application. Water solubility is produced by the hydrogen bond formed by multiple hydroxyl groups on sugar, while the interaction of hydroxyl groups in water is very different from that of alcohol ether bond in water, So there is no cloud point and dilute gel as non-ionic surfactant.
  • The effect of strengthening with silicone structural adhesive is very good

    2020-02-27 14:51:32
    This kind of application scope is mainly to use silicone structural adhesive as a kind of bonding data, to firmly bond the steel plate or profile used for reinforcement, or other reinforcement data (such as carbon fiber, aramid fiber, and chloro fiber) on various reinforced concrete components, such as beams, columns, nodes, bracket plates, tunnels and arch roofs, etc., and the completed reinforcement projects have achieved satisfactory results.
  • Alkyl glycoside can be used as crease resist in textile industry

    2020-02-25 10:13:47
    APG can reduce water activity and change the flow state of shale pore fluid, so it can be used as an inhibitor. It has good lubricity, inhibition ability, anti pollution ability and good reservoir protection. APG can interact with other water-soluble polymers to achieve the best filtration reduction effect. It can broaden the temperature limit of natural polymer drilling fluid, and it can be biodegradable, which is beneficial to environmental protection. In tertiary oil recovery, C12-C16 APG compound solution is used as the body replacement solution, which can obviously enhance the oil recovery compared with water drive.
  • APG has good wettability and permeability

    2020-02-23 10:48:43
    APG has good wettability and permeability, is not sensitive to high concentration electrolyte, is biodegradable, does not pollute crops and land, and has excellent hygroscopicity Different from polyoxyethylene nonionic surfactant, it has no inverse phase cloud point, can effectively reduce the surface tension of the solution, delay the evaporation of water in the solution, and maintain the hydration and dissolution state of the pesticide for a long time, which is helpful to improve the absorption speed and absorption rate of the plant leaves facing the pesticide.
  • Comparison of alkyl glycosides with nonionic surfactants

    2020-02-21 10:47:04
    Compared with non-ionic surfactants, alkyl glycosides have the advantages of high critical micelle concentration, can be removed by dialysis, protein is not easy to denaturate, UV light penetration and so on. At the same time, APG can also be used to refine cytochrome c, RNA polymerase, rhodopsin, fatty acids, etc., to stabilize these proteins.
  • Alkyl glycosides are usually 50% aqueous solutions

    2020-02-19 15:33:16
    APG can improve the sizing effect of paper, and it can produce excellent flotation deinking agent with other surfactants. APG is also widely used in fire fighting agents.
  • Determination of monocentenylglucoside in grape

    2020-02-17 16:56:17
    However, due to the lack of chromophore group in alkyl glucoside molecule, UV detector can not be used, differential refractive detector can be used, but the sensitivity is not high and gradient elution is not possible. At present, the evaporative light scattering detector is widely used as a detection method for the analysis of alkyl glucosides, which has high sensitivity and gradient elution.
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