Polyurethane (PU) adhesives are those adhesive contains -NHCOO- and/or isocyanate group (-NCO-) in molecular chain. Polyurethane adhesives have many polar groups, which can form covalent and hydrogen bonds with materials contains active hydrogen.

Nylon, also called as Polyamide (PA), which means the general term for thermoplastic polyesters containing repeating amide groups -[-NHCO-]- in its molecular structure.

Among all polymers, polyolefin plastic has high cost-effective, good processing performance, which make it popular in the market. Even in harsh outdoor conditions, the weather-resistant PP material modified by additives can still maintain excellent yellowing resistance and anti-aging properties.

Most people believe that sunshine is good for health. However, a large number of skin pathological studies have shown that intense solar radiation, especially UVB&UVA (290 - 400 nm), poses a great harm to human health. It can cause skin tanning, pigmentation, skin-aging, and even skin cancer.

Polyurethane materials are widely used in various industries, such as plastics, rubber, fibers, adhesives, textiles and thermal insulation materials.

In recent years, the development of automobile industry revolves around lightweight, environmental protection and multi-function.

As is known to all, light stabilizers are essential modifiers for polymer materials, which could absorb ultraviolet energy and delay the photoaging of polymer material.

UV resistance treatment finish is an essential part of textile functional finish. At present, the market prospects of textiles with uv resistance are very broad, and the varieties of uv resistance fabrics are increasingly extensive.

Generally, the white products obtained by traditional process (such as bleaching, adding blue) will not be very ideal whiteness, even a little yellow.It feels like the product is not brand new. Why this happening?