Alkyl polyglucosides (APG) is a complex mixture of alkyl monoglycosides, diglucosides, triglucosides and oligoglycosides, which is generally called alkyl polyglucosides (APG). It is a product obtained by the loss of a molecule of water under the catalysis of strong acid from the hemiacetal hydroxyl and fatty alcohol hydroxyl of glucose.

The trend of surfactant's steady growth in the world provides a good external environment for the development and expansion of cosmetics industry, and the requirements for product structure, variety, performance and technology are also higher and higher. Therefore, it is necessary to systematically develop safe, mild, biodegradable and special surfactants to provide theoretical basis for the development and application of new products. To focus on the development of glycoside surfactants, we can develop a variety of polyols and alcohol surfactants; systematically research and develop soybean phospholipid surfactants; develop a series of products of sucrose fatty acid vinegar, strengthen the research of compounding technology, and expand the application range of existing products.

APG, for short, is a non-ionic surfactant, characterized by environmental protection, small irritation, no pollution to the environment. Compared with other surfactants, APG has the advantages of low surface tension, strong decontamination ability, stable in strong alkali environment, and stable use in combination.

Anionic surfactants are common soap groups in Japanese cleansers. I believe that many people often see the word "soap base" and often hear people say not to use soap base cleanser, because it is not gentle, but what is soap base? This has to start from the chemical reaction formula of making "soap": fat + alkali = soap + glycerin. Here we generally think that fat is fatty acid glyceride. In the alkaline condition, the sodium fatty acid produced by heating hydrolysis is soap.

The characteristics of surfactants include: anionic, cationic, non-ionic, amphoteric surfactants. Among them, anionic surfactants include: carboxylates, sulfonates, sulfates, phosphates; cationic surfactants include: aliphatic amines and alkyl cyclic nitrogen-containing heterocyclic salts; non-ionic surfactants include: polyoxyethylene and fatty acid polyol esters; amphoteric surfactants are based on their middle cation According to the structure of ion part, amphoteric surfactants can be divided into betaine, amino acids, lecithin and imidazoline derivatives; according to the structure of anion part, they can be divided into carboxylates,

Alkyl glucoside, as a new non-ionic surfactant, has the advantages of low surface tension, fine foam, rich and stable, strong detergency and strong compatibility. The product is non-toxic, non irritating and biodegradable, so it can be widely used in detergents, detergents, cosmetics, food and medicine.

Alkyl glycosides in skin cleansing products, because of APG has good safety, mild, decontamination, foaming and foam stability, compatibility and rheological behavior. Therefore, it is often used in bath liquid and facial cleanser for skin cleaning. Add a small amount of APG to the bath formula as a conditioner, which will make the skin feel more comfortable after washing.

As a new non-ionic surfactant, alkyl glycosides have many unique advantages. For example, it has obvious synergistic effect with anionic surfactants, abundant foam, little irritation to skin, non-toxic and good biodegradability, etc. it makes alkyl glucosides have certain superiority in the preparation and application of daily chemical products, so it has been widely applied.

The compatibility test and performance test between silicone structural adhesive and contact material must be carried out carefully before purchase. If there is no such report, the Contractor shall be urged to immediately entrust a testing agency with such qualification to carry out special test, and the qualified test can only be used.

Polyetheramine has the characteristics of low viscosity, good permeability, anti yellowing and weather resistance. Its FRP products have good flexibility and anti fatigue properties. It's hard to satisfy the general epoxy. Therefore, in large-scale epoxy FRP products, polyether amine is basically used as curing agent of epoxy resin. For example, the blades of wind turbines are generally about 50m long, and now they can be more than 80m long. In all-weather conditions, the service life is required to be more than 20 years. Due to the special requirements of this environment, polyether amine or polyether amine compound curing agent is widely used in the world. Of course, because polyether amine has this characteristic, other composite materials will also choose polyether amine in many occasions, such as yachts, skis, fishing rods and other products with good fatigue resistance.

In the promotion of polyether amines, we should pay attention to the interactive marketing of channels, regions and prices. For different regions, different levels of agents to give different price positioning and profit line. On the whole, the promotion concept is the principle of low price, high quality, master the main channel and regional volume.

Polyether amine technology is often used as a kind of foaming agent after polyether amine is generated. Of course, it is because of the existence of such products that we can achieve a good effect when using products. However, when we use it in styrofoam, what should we pay attention to? Let's have a simple understanding.

Oxygenation principle of surfactant: the saturated solubility of oxygen in aquaculture water can be increased by adding 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.

Surfactant is a kind of substance which can make the interface state of solution system change obviously. Surfactants have fixed hydrophilic and lipophilic groups, and can be arranged on the surface of the solution. The molecular structure of surfactant is amphiphilic, one end is hydrophilic group, the other end is hydrophobic group.

Generally, the toxicity of amino terminated polyether in oral cavity or in contact with skin, eyes and mucous membrane can be ignored, so there is no need for personal protective measures in use. But because its alkalinity can irritate skin and eyes, it is necessary to wear safety glasses, gloves and other protective articles during operation.

Surfactants are substances that can significantly reduce the surface tension and interfacial tension of liquids. Their molecules are composed of polar hydrophilic group and nonpolar hydrophobic group. The common hydrophilic group is carboxyl group, sulfuric acid ester, sulfonic acid group, amino group, quaternary ammonium group and hydroxyl group, while the hydrophobic group is represented by long-chain alkane and aromatic hydrocarbon. Because of their hydrophilic and lipophilic amphiphilic properties, they can change the surface properties of cleaning solution during chemical cleaning, making it have lower surface tension, better wettability and foaming. According to the different charge of the surface active part, surfactants can be divided into four categories: anionic, cationic, non-ionic and amphoteric.

With the passing of time and the development of science, our knowledge of polymer flooring maintenance materials has also been fundamentally changed. More and more users begin to pay attention to the function and useful concept of products. The new flooring no longer excessively seeks the needs of light, smoothness and endless hardness of polymer flooring, but also needs the appearance of light, soft and hard without cracking Pay attention to meet the functional needs of the owners.

In the process of flame-retardant, most manufacturers adopt the sequence of loading wood → adding flame retardant → adding water → starting flame-retardant. Generally speaking, when the water absorption of wood is the largest at the beginning, the process often causes the wood to start to absorb a very low concentration of flame-retardant liquid, so in the process of wood flame-retardant, a process is needed to make the concentration of flame-retardant liquid absorbed by wood excessive from low concentration to normal concentration, which directly affects the dry salt absorption and absorption speed of wood, and then affects the flame-retardant effect.

Some additive flame retardants commonly used in some materials may decompose a little under the processing temperature, which limits the use of some flame retardants on the one hand, and on the other hand limits the processing temperature used in flame retardant materials. A lot of additive flame retardants are filler type, but in order to make the materials reach the required flame retardant level, the amount of additive is often large, so it is difficult to disperse them uniformly in the polymer matrix, which may reduce some properties of the materials.

Precautions for amino terminated polyether in storage refer to: when the material barrel is placed vertically, there shall be no water on the barrel cover, and the material barrel shall be placed in a cool and dry place, away from the heat source, and shall not be exposed to the sun. If the whole barrel cannot be used up in one time, the end must be closed immediately after each use to prevent impurities, water vapor, etc. from entering the barrel and affecting the use. If more than two brands of amino terminated polyether are used at the same time, they shall be stacked in categories and marked with obvious marks. The storage time of amino terminated polyether added with ordinary flame retardant shall not be too long, and the white material prepared on the same day shall be used as much as possible on the same day, otherwise it is easy to deteriorate and affect the foaming quality.