TDI is the abbreviation of toluene diisocyanate. TDI is a polycyanate widely used in industrial production. It is a polyurethane material and an important basic material. Mainly used to make flexible polyurethane foam, polyurethane elastomer, coatings, adhesives, etc.

TDI (toluene diisocyanate) is one of the commonly used polyisocyanate, and polyisocyanate is an important base material of polyurethane (PU). The TDI commonly used in the polyurethane industry is a mixture of 2,4-TDI and 2,6-TDI isomers, including three commonly used grades.

The organic improvement of the titanium dioxide surface is to carry out organic coating on the surface of the particles through the chemical reaction or physical absorption of organic molecules on the surface of the particles, transform the surface state of the particles, so that it can be effectively dispersed in the organic solvent, and improve the powder in the organic matter. Compatibility in the interface. Generally can be divided into esterification method, surfactant method, coupling agent method and polymer coating method.

Hydrogen peroxide is a good oxidizing bleaching agent. It is used for bleaching yarns with hydrogen peroxide. It has good whiteness, pure color and no impurities in the equipment.

Ammonia is an aqueous solution of ammonia. It is colorless, transparent and has a pungent smell. So what are the properties of ammonia?

Water retaining agent (for bread, cake); Carrier solvent (for spices, pigments, water-insoluble preservatives, etc.); Thickener (used for beverages, liquor preparation, etc.) Plasticizer (candy, dessert Chemicalbook, meat products); Sweeteners. EEC regulations can be used for alcoholic beverages, candies, cakes, coating glazing, meat and cheese coating, non-alcoholic beverages, baked products, gum, gelatin sweets, etc.

Suitable for tiles, marbles, plastic finishes, adhesives, etc., which can reduce the amount of cement. The water retention of HPMC prevents rapid cracking of the slurry after coating and strengthens the strength of the slurry after hardening.

Due to the various types of test reagents, general test reagents are classified into two categories: inorganic and organic, and special test reagents and dangerous test reagents are stored separately.

Titanium dioxide itself has strong photochemical activity, and is prone to inactivation, yellowing, powdering, etc. under the sun, especially ultraviolet rays. A layer of inorganic material is wrapped on the surface of the titanium dioxide, which not only gets rid of the above defects, but also improves the characteristics of the titanium dioxide product.

The shape of sodium persulfate is milky white crystalline powder, which is soluble in water, and can accelerate the dissolution in wet humidity and high temperature; it can be dissolved by ethanol and silver ions, and the solubility in water at 20℃ is 549g/L; sodium persulfate is also deliquescent , In humid air and high temperature can accelerate the dissolution of sodium persulfate, release oxygen and become sodium pyrosulfate.

It is necessary to reduce the harm of human beings. The best way is scientific application. Carbon dioxide actually has two sides. On the one hand, a greenhouse effect will be generated; on the other hand, it will benefit humanity, such as use as plant gas and fruit and vegetable prevention.