Waste Rubber Chemical Recycling Technology
■ Technical Features
▶ This technology involves the design and synthesis of a polysulfide polymer regenerator
with similar solubility parameters to waste rubber. This regenerato‘r s molecular structure
contains thiol functional groups that react with the sulfur cross-links in waste rubber
through a sulfur substitution reaction, transforming it from an elastic state into a plastic,
viscous, low-odor, and revulcanizable rubber. This technology solves the problem that the
traditional use of low molecular weight sulfides and thiols as regeneration agents results
in a pungent odor in the reclaimed rubber, preventing its large-scale addition to various
rubber products.
Cross-linked EVA Depolymerization Modification Additive Technology
■ Technical Features
▶ This technology develops unsaturated fatty acid methyl esters through thiolation modification as
an additive(FAME-SH)for cross-linked EVA depolymerization.This modified additive can inhibit
the free radical self-crosslinking generated during the depolymerization process of cross-linked
EVA, which can cause poor melt flowability and make it difficult to return to the original product
application, thus solving the problem of downgrading to regrind materials applications.
■ Contact Us
Material and Chemical Research Laboratories
Dept. of Rubber Devulcanization Reuse and
Processing Department(P600)
Jyh-Horng Wu
Tel:06-6939423
E-mail:jhwu686@itri.org.tw