Thermal stableagent Its function is to prevent polymer materials from being damaged during processing or use Pricing or cross-linking occurs due to he…
Thermal Aging of PVC The process is relatively complex, and there can often be several chemical reaction processes at the same time. The most importan…
In order to prevent the aging of polymer materials, light stabilizers are usually used. The main light stabilizers currently used include light shield…
Flame retardantWith the development of the synthetic materials industry, a large number of synthetic resins are used In the fields of construction, tr…
The mechanism of action of flame retardants is more complicated and involves various factors, but the role of flame retardants is nothing more than Th…
(1) Polyolefin Polyolefin burns easily. The upper end of the flame is yellow and the lower end is blue. It melts and drips when burning, so it require…
The flame retardancy of fibers includes decorative cloths and fabrics for clothing, public facilities and transportation, etc. , it is increasingly ne…
Some colored organic compounds in nature can be made into fiber materials or paper, leather, etc. by appropriate methods. Matter is dyed into various …
Classification is based on the application object of the dye, the dyeing method of the dye, the application performance and the combination form with …
(1) The nature of light The color of dyes and The structure of the dye molecule itself is also related to the properties of the light that illuminates…
The relationship between the number of conjugated double bonds of dyes and their color. The more conjugated double bonds in an organic compound molecu…
Acid dyes are often sodium nitrate salts of aromatic compounds. Since this type of dyeing needle is usually dyed in an acidic solution, it is an acid …
