and the pace of domestic substitution of high-grade polybutene-1 in my country has accelerated.

polybutene-1 is a polymer material obtained by polymerizing butene-1 monomer in a reactor. high isotactic polybutene-1 is a high-end polybutene-1 product. compared with general cross-linked polyethylene, heat-resistant polyethylene, and random copolymerized polypropylene (ppr), high isotactic polybutene-1 has better impact resistance. it has better performance in terms of hoop stress bearing capacity, creep resistance, high temperature…