PVC heat stabilizers and compatibility of microcapsules

PVC heat stabilizers toward today's low toxicity, non-toxic and compound trend. Hydrotalcite, calcium zinc stabilizers for its non-toxic and versatile features, the development at home titanium dioxide  and abroad has become a hot spot. However, many PVC heat stabilizers for research work only simple complex synergies, the effect is less toxic type heat stabilizers; complex components for heat stabilizers, although to some extent inhibited the degradation of PVC, but which will inevitably there will be some poor compatibility and PVC material, these substances be mechanical properties of PVC and other properties adversely affected.
Has gradually developed a microencapsulation technology has  tio2 anatase certain advantages, fundamentally improve the PVC heat stabilizer and the compatibility between the materials, at the molecular level to enhance heat stabilizer and the association between the materials, improved PVC thermal stability as well as the mechanical properties of the material will not cause too much impact. Microencapsulation technology application in flame retardants have been studied in more mature, but the  chrome oxide plastic heat stabilizer applied research is still blank. Therefore, the design and use of microencapsulation technology to carry out the PVC heat stabilizers microencapsulation, is a relatively new idea. PVC as wall, hydrotalcite, calcium / zinc heat stabilizer as core materials, the organic phase separation microencapsulation of heat stabilizers. Due to the shell material the same as the plastic substrate, this micro-capsules with PVC, very good compatibility with plastics.