From a certain perspective, petroleum resin concentrates on the advantages of various compounding agents such as reinforcing agents, softeners, plasticizers, and tackifiers. It has the following advantages:
- Compared with natural resin, the entire production process of petroleum resin takes petroleum cracking as the starting point and cracking by-products as raw materials, so it does not occupy land, and the raw materials are abundant and the production potential is large.
- Comprehensive performance, multi-functional characteristics, can provide various functions such as reinforcement, softening, viscosity-increasing and plasticizing by adjusting the synthesis technology to meet the requirements of rubber stopper processing and product performance.
Petroleum resin manufacturing process
A resinous substance obtained by polymerization using a fraction obtained by petroleum cracking or copolymerized with an aldehyde or an aromatic hydrocarbon compound is collectively referred to as a petroleum resin. The light tar obtained by cracking in a petrochemical plant is used as a basic raw material, and a fraction of 130 to 170 ° C is cut off. After reacting these fractions with alumina or boron trioxide, polymerization is carried out under the catalysis of chloroethyl ether, and the catalyst is removed by adding lime water, washed with water, reduced pressure, and distilled to obtain a solid petroleum resin product.