Polychloroprene rubber cr is the oldest synthetic elastomer that is still. Polychloroprene ince the advent of the second world war, synthetic rubber has played an everlarger role in the polymer realm. Technical data sheet jun2016 gcp industrial products product commercial grade neoprene rubber sheet pr1exx 1. Chloroprene rubber cr is representative of rubber type 64. Polychloroprene different types of chloroprene rubber cr. With supplies of natural rubber cut off in southeast asia, the united states embarked upon an ambitious program to synthesize and characterize synthetic rubber samples to replace the natural rubber it. Polychloroprene is noted for good compression set resistance, excellent flex fatigue resistance, and resistance to weather and ozone. Pm 4 2018 chemical substances in elastomer materials.
For the testing apparatus, the shimadzu autograph agx precision universal tester was used fig. Polychloroprene is alkali and acid resistant, flame retardant, and suitable for petroleum based oils. The information in the database has been included in an excelfile, see appendix 1. Polychloroprene or chloroprene rubber comes in a number of different grades such as general purpose, precrosslinked, sulfur modified and slow crystallizing. Test specimen and test conditions the sample and test conditions used in this test are as follows. Chloroprene is the common name for 2chlorobuta1,3diene iupac name with the chemical formula ch2ccl. Animal and vegetable fats and greases also provide a highly stable environment for this polymer. Pdf the prediction of the lifetime of polymers in a marine environment is becoming increasingly. Rubber material selection guide cr or neoprene polychloroprene. Mgo and zno as reinforcing fillers in cured polychloroprene rubber. Polychloroprene known as neoprene is a polar rubber and is generally considered as a special purpose rubber being used for applications requiring oil and solvent resistance. Pdf durability of polychloroprene rubber for marine application. Polychloroprene rubber cr is widely used for marine application.
Polychloroprene rubber from japan united states international. Dimensions and appearance thickness in 2 2 length ft 5 300 width in 2 72 surface finishing smooth finish, both sides color black 2. Polychloroprene rubber cr is widely used for marine application due to its intrinsic properties such as large elongation, good fatigue b ehaviour, thermal properties and goo d durability. Polychloroprene rubbers which are sulfur modified exhibit under similar compounding high tear resistance but, also.