Due to the presence of polar genes in the macromolecular structure of chlorinated polyethylene (CPE) and the loose structure of its powder, there is not only “unbound water” but also “bound water” in its wet powder, making it difficult to dry it to a moisture content of no more than 0.3% (wet basis)
135A is usually stored in daily production in enterprises, but there are requirements for the storage method of CPE135A. Improper storage can cause changes in the properties of CPE135a, which can affect product quality to a certain extent. One is not to store CPE135a for a long time, it can meet daily production needs, because our supply capacity is sufficient to meet your orders at any time. If a company must store a certain amount of CPE135a, it must pay attention to the storage method. Below are three points to note when storing.
Firstly, it is necessary to do a good job of sealing. If CPE135A is exposed to air for a long time, it is easy to react and change its chemical properties, causing changes in its performance. Users need to avoid contact between CPE135A and air.
Secondly, it is necessary to do a good job in moisture-proof work. For any product, prolonged exposure to humid air can cause damage, let alone cpe135A. Customers must do a good job in moisture-proof work.
Thirdly, it is necessary to avoid high temperatures in the working environment of CPE135A. When storing CPE135A, it is important to control the temperature of the environment, as excessive temperatures can cause reactions to CPE135A. Therefore, customers must do a good job in temperature control.
Due to the high chlorine content of CPVC resin, its impact resistance is worse than PVC resin, and it must be modified by adding impact modifiers. Common impact modifiers include CPE, MBS, ABS, and ACR. Adding CPE during the processing of CPVC pipes has a significant toughening effect, with the best toughening effect occurring between 8-12 parts. However, adding CPE will significantly reduce the Vicat softening temperature of the pipe; MBS and ABS have little effect on the Vicat softening temperature, but due to the presence of unsaturated double bonds in their molecular chains, their weather resistance is poor; Impact resistant ACR is an ideal impact modifier, but its price is relatively high.
Post time: Dec-07-2024
