In the hot melt of glass bottles, what would happen if you added polyurethane as a chemical raw material? ! Let's experiment. The result is as follows: After the glass bottle solution is added with the polyurethane raw material, the produced glass bottle has more light perception. And wear, pressure, reduce the bubble. Glass bottles are more easily cast after adding polyurethane to the blow mold. The mold itself has polyurethane raw materials, because some products are more bright after the mold. Due to the unique physical and chemical properties of polyurethane, it is more advantageous to use after transportation. Although this chemical raw material is not yet widely used in China's glass processing, it is related to his raw material price, but it has been officially applied abroad. Common sense links Our factory stay on a place where is famous of knife manufacture .It is fabricated from high-quality stainless steel,single-piece, precision-stamped blade construction provides durability,professional, fine-edge bladeboasts precision cutting and is finely honed for long-lasting sharpness.We are good at Chef Knife,bread knife,carving knife,utility knife,paring knife,sharpener,kitchen scissor,steak knife.We can provide the Knife Set or single knife which up to you. Household Knife,Dinner Knife,Household Floding Knife,Stainless Household Knife YANG JIANG FEETON HOME PRODUCTS CO., LTD. , https://www.feetonbbq.com
English name:polyurethane
Uses: According to the different raw materials used, there can be different types of products, generally polyester and polyether two types. Can be used to make plastics, rubber, fibers, rigid and flexible foams, adhesives and coatings.
Preparation of sources: Polymer compounds made up of dibasic or polyvalent isocyanates and dibasic or polyhydric hydroxy compounds.
Polyurethane is a macromolecule compound containing -NHCOO- units in its molecular structure. This unit is formed by reacting isocyanate groups with hydroxyl groups. The reaction formula is as follows:
—N=C=O + HOˉ → —NH-COOˉ
The discovery of polyurethanes: In the 1930s, Otto Bayer of Germany first synthesized TPU. Before and after 1950, TPU appeared as a textile finishing agent in Europe, but mostly solvent-based products were used for dry coating finishing. In the 1960s, thanks to the enhancement of people's environmental awareness and the introduction of government environmental protection regulations, water-based TPU coating came into being. After the 1970s, the water-based PU coating developed rapidly and PU-coated fabrics have been widely used. Since the 1980s, there have been breakthroughs in the research and application of TPU technology. Compared with foreign countries, domestic research on PU textile finishing agents is relatively late.
Glass bottles mixed polyurethane more light perception
Foreword Polyurethane, which is called polyurethane, is a general term for macromolecular compounds containing a repeating urethane group (NHCOO) in the main chain. It is formed by addition polymerization of organic diisocyanates or polyisocyanates with dihydroxy or polyhydroxy compounds. In addition to the urethane, the polyurethane macromolecule may also contain ether, ester, urea, biuret, allophanate and the like. Polyurethane structure