| 摘要 |
The invention relates to a composite material for substrates, in particular to a composite material for substrates containing inorganic filling material and a liquid crystal thermosetting (LCT) oligomer with a negative thermal expansion coefficient.The main chain of the oligomer comprises at least one soluble constitutional unit and at least one end of the main chain comprises at least one thermosetting group.By containing the inorganic filling material with a negative thermal expansion coefficient, the composite material for substrates is good in thermal, electrical and mechanical properties.
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