In earlier years, polypropylene lifting belts were among the top performers in the lifting belt industry, with extremely high acid and alkali resistance. However, with the development of technology, the emergence of polyester lifting belts has taken polypropylene lifting belts off the pedestal, known for their high strength and high load capacity, and has become a widely sought after lifting product, with a strong trend of replacing metal lifting equipment.
So, has the polypropylene lifting belt really collapsed? No, polypropylene lifting belts still have outstanding performance in their work field due to their extremely high acid and alkali resistance, which is incomparable to polyester lifting belts. Especially when it comes to lifting operations in alkaline environments.
Although the production technology level of polypropylene is relatively backward, the industry generally believes that polyester has greater strength than polypropylene. In fact, under the conditions of advanced equipment and technology, polypropylene is determined by its structural properties. After multiple stretching, it can obtain a very compact molecular structure with stronger strength than polyester. Polyester has decent acid resistance, but extremely poor alkali resistance. It can be decomposed by weak alkali and is not suitable for use in any environment that may be alkaline.
From this, it can be seen that although polyester lifting belts are excellent, they are not omnipotent, while polypropylene lifting belts, although they have fallen from the pedestal, are still an irreplaceable member in certain special environments for lifting operations.