标准摘要
[中文适用范围]： IEC 61249 的这一部分给出了预浸料的性能要求，在根据 IEC 62326-4 制造多层板时，预浸料主要用作与根据 IEC 61249-2-39 的层压板连接的粘合片。由这些材料组成的多层板适用于无铅组装工艺。该材料也可用于粘合其他类型的层压板。根据该标准的预浸料具有规定的可燃性（垂直燃烧测试）。完全固化的预浸料的可燃性等级是通过使用作为聚合物结构的组成部分的溴化阻燃剂来实现的。根据供应商的说明固化预浸料后，玻璃化转变温度定义为最小值 170℃。 [外文原描述]： IEC 61249-4-18:2013 gives requirements for properties of prepreg that is mainly intended to be used as bonding sheets in connection with laminates according to IEC 61249-2-39 when manufacturing multilayer boards according to IEC 62326-4. Multilayer boards comprised of these materials are suitable for lead-free assembly processes. This material may be also used to bond other types of laminates. Prepreg according to this standard is of defined flammability (vertical burning test). The flammability rating on fully cured prepreg is achieved through the use of brominated fire retardants contained as an integral part of the polymeric structure. After curing of the prepreg according to the supplier's instructions, the glass transition temperature is defined to be 170 °C minimum.
英文名称Materials for printed boards and other interconnecting structures - Part 4-18: Sectional specification set for prepreg materials, unclad (for the manufacture of multilayer boards) - High performance epoxide woven E-glass prepreg of defined flammability (vertical burning test) for lead-free assembly