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The addition effects of organic small molecular substances N,N’-dicyclohexyl-benzothiazyl-2-sulfenamide(DZ)and 3,9-bis{1,1-dimethyl-2[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy]ethyl}-2,4, 8, 10-tetraoxaspiro [5,5]-un-decane (AO-80) on the dynamic mechanical properties of chlorinated polyethylene (CPE), chlorinated polypropylene (CPP),acrylate rubber (ACM) and their blends were investigated. In the case of compatible systems such as CPE/DZ and ACM/AO-80, the height of the loss tangent (tanδ) peak of a matrix polymer (CPE or ACM) increases, and its peak position shifts to ahigher temperature with the addition of DZ or AO-80. By contrast, for incompatible CPE/AO-80, a novel transition appearedabove the glass transition temperature of CPE. This additional transition was assigned to dissociation of the intermolecularhydrogen bond between the α-hydrogen of CPE and the hydroxyl groups of AO-80 within the AO-80-rich domain. This willprovide a new concept for developing damping material. However, the minimum value between two tanδ peaks is lower. Itwas found that the temperature dependence of tanδ could be improved by adding chlorinated paraffin (CP) or ACM toCPE/AO-80. In addition, another ternary system of ACM/CPP with more AO-80 was found to be a very good self-adhesivedamping material because of the appearance of a novel transition due to an interfacial layer of ACM/CPP.
The addition effects of organic small molecular substances N, N’-dicyclohexyl-benzothiazyl-2-sulfenamide (DZ) and 3,9-bis {1,1- -5-methylphenyl) propionyloxy] ethyl} -2,4,8,10-tetraoxaspiro [5,5] -un-decane (AO-80) on the dynamic mechanical properties of chlorinated polyethylene (CPE) In the case of compatible systems such as CPE / DZ and ACM / AO-80, the height of the loss tangent (tan δ) peak of a matrix polymer (CPE or ACM) increases. , and its peak position shifts to ahigher temperature with the addition of DZ or AO-80. By contrast, for incompatible CPE / AO-80, a novel transition wasabove the glass transition temperature of CPE. This additional transition was assigned to dissociation of the intermolecularhydrogen bond between the α-hydrogen of CPE and the hydroxyl groups of AO-80 within the AO-80-rich domain. This will be a new concept for developing damping m However, the minimum value between two tan δ peaks is lower. Itwas found that the temperature dependence of tan δ could be improved by adding chlorinated paraffin (CP) or ACM to CPE / AO-80. In addition, another ternary system of ACM / CPP with more AO-80 was found to be a very good self-adhesivedamping material because of the appearance of a novel transition due to an interfacial layer of ACM / CPP.