Polyurethane foaming technology is actually a technology to produce polyurethane foam. Nowadays, this kind of foam can be used in many fields, so the points of attention in the control of polyurethane foaming technology are also attracting much attention
Polyurethane foaming technology needs to pay attention to the following points
Strictly control the performance of the original liquid
Black and white material contains foaming agent, combined polyether, catalyst and foam stabilizer. Black and white material monomer is generally a viscous liquid, do not appear impurities, otherwise it will also lead to clogging the filter of the foaming machine, and even make the flow of raw materials unstable. In the process of proportioning should pay attention to the proportion of black and white material must be uniform, otherwise it may also block the foaming machine.
Second, control the ratio of the original liquid
To strictly control the black material as well as the ratio of black material. In the process of proportioning, if the proportion of black material is too large, the process of foaming may appear empty bubbles, but if the proportion of white material is relatively large, there will be soft foam. At the same time, if the proportion of black and white material is out of proportion, it will seriously lead to uneven mixing and shrinkage of foam.
Third, control the temperature
In the process of using polyurethane foam technology, the temperature should be controlled within a certain range. Once the temperature is too low, it will lead to the slow reaction speed of the machine, the curing time is elongated, which is not conducive to the enhancement of work efficiency.