Plasticizing composite heat stabilizer and preparation method thereof

• Main Authors: LIN JIAYAO, CUI HONGMING, LI LIANGBO, JIA ZIYANG, MENG PINGRUI, WANG MINMING
• Format: Patent
• Language: English
• Published: 25.03.2015
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a plasticizing composite heat stabilizer and a preparation method thereof. The preparation method is characterized by comprising the following steps: adding 500-900 parts by mass of water, 100 parts by mass of acidified oil, 15-30 parts by mass of rare earth chloride, 2-10 parts by mass of zinc sulfate, 10-25 parts by mass of calcium chloride and 20-50 parts by mass of a saponifying agent into a reactor and carrying out ultrasonic saponification reaction to obtain an acidified oil rare earth/calcium/zinc composite heat stabilizer; returning the acidified oil rare earth/calcium/zinc composite heat stabilizer to the reactor, adding 30-60 parts by mass of hydrogen peroxide and carrying out ultrasonic oxidation reaction to obtain an epoxidized acidified oil rare earth/calcium/zinc composite heat stabilizer, namely, the plasticizing composite heat stabilizer. The stabilizer has dual functions of a plasticizer and a stabilizer, and has the advantages of good mutual compatibility with PVC, strong synergetic effect, good thermal stability, superior tensile strength and elongation at break to those of DOP, cheap and easily available raw materials and lower cost, and the process is simple and environmentally friendly.