Abstract:

Chlorinated Natural Rubber (CNR) which has good properties of film forming, corrosion-resisting, anti-leakage and anti-combustion and is broadly used in the production of ship paint, container paint,corrosion-resistant paint, adhesive and additive in ink is prepared by the chlorinated modification of NR through solution or latex process. Because of the defects of high equipment investment and cost, environmental hazards and doing harm to workers' health, many countries have prohibited from producing CNR through tetrachloromethane solution process, so the latex process has good prospects in widespread application. There are many reports on the preparation structure and chlorinated mechanism of CNR.But the reports on the thermal ageing of CNR from latex are few. In this paper the dynamic thermal ageing of CNR from latex at 25~360℃ was studied by Fourier Transformed Infrared (FTIR) method.