What Is Tesa Tape

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② When using a polymerization process by-product gas, is a typical example of polyurethane foam, when isocyanates and polyether or polyester polycondensation reaction, part of the isocyanate with water will, hydroxyl or carboxyl reaction of carbon dioxide. As long as the gas evolution rate and polycondensation proper speed adjustment can be made very uniform high cell foam products. There are two types of polyurethane foam, open cell shape soft sponge, widely used as a variety of chairs, sofas and sound-absorbing cushion, filter materials; rigid, closed cell type is ideal for insulation, insulation, shock absorption and floating material. Performance
Compared with pure plastic foam with low density, light weight, high strength, its intensity increases with the density increases, the ability to absorb shock loads, have excellent shock absorbing properties, sound-absorbing properties, thermal conductivity low, good insulation properties, excellent electrical insulation properties, corrosion resistant, mold-resistant properties. Flexible foam having excellent elasticity and other properties. Feature
(1) low density, reduce packaging weight, reduce transportation costs;
(2) has excellent impact, vibration energy absorbent is used to buffer Earthquake packaging products can greatly reduce the damage;
(3) changes in temperature and humidity adaptability, to meet the general packing requirements;
(4) low water absorption, low moisture absorption, good chemical stability, itself does not cause corrosion on the contents and acid, alkali and other chemicals, there is a strong resistance;
(5) low thermal conductivity, can be used for insulation packaging, such as ice cream cups, fast food containers and insulation boxes and other fish; convenient (6) forming, can be used molding, extrusion, injection molding and other methods into various foam lining pads, foam blocks, sheets and the like. Easily forming secondary processing, such as thermoformed foam sheet can be made of a variety of fast-food containers. In addition, the foam blocks can also be subjected to self-adhesive bonding or bonding with other materials, such as liner made of various buffer.