2022 – 2023 New Year Holidays Schedule

Schedule

Closed from December 29th 2022 to January 4th 2023 The last shipment date in 2022 is December 21st. Orders received after 3:00 p.m. on December 20th will be shipped on or after January 5th. Logistics volume is expected to jump after December 19th. To prevent late deliveries, please allow plenty of time from placing your…

Why do we need stabilizers? PVC degradation mechanism

Chemistry, R&D Columns

PVC degradation is the result of dehydrochlorination reaction in which hydrogen chloride (HCl) is split off. Without PVC stabilizers, free HCl generation accelerates the dehydrochlorination process, resulting in a chain reaction called the Zipper reaction. HCl and conjugated double bond (a single bond between two or more double bonds) are formed, resulting in PVC with…