查看塑胶材料认证 QMFZ2 Guide info
# `5 g7 y4 h' S U7 tThermal Endurance
$ i; O% o) B2 W( Q& HThe temperature below which a class of critical property will not be unacceptably compromised through chemical thermal degradation, over the reasonable life of an electrical product (relative to a reference material having a confirmed, acceptable corresponding performance) is defined as the Relative Thermal Index (RTI). More than one RTI may be appropriate for a given material depending on the property requirements for a given application. In certain cases, higher temperatures are permitted if so specified by the end-use product standard. . q8 L& U9 p; S: W- X9 I& x3 ]
* W6 {3 [" t. T+ g, a TRTI Elec — Electrical RTI, associated with critical insulating properties.
+ G& Y1 u0 H M! [8 ~9 A; PRTI Mech Imp — Mechanical Impact RTI, associated with critical impact resistance, toughness, elongation and flexibility properties.' ~. x& N Q3 n/ d7 R. e: F
RTI Mech Str — Mechanical Strength (Mechanical without Impact) RTI, associated with critical mechanical strength and structural integrity where impact resistance, resilience and flexibility may not be essential.
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