This research demonstrates improved mechanical strength and fire resistance in silicone rubber composites using modified ammonium polyphosphate as a filler.
Modified ammonium polyphosphate (mAPP) filler was firstly synthesized, then introduced into silicone rubber (SR) to fabricate composites. The mAPP with siloxane chains and reactive groups could be better dispersed in SR matrix, leading to improvements in both the mechanical strength and fire-resistant performances of the composite material. It could be found that the SR-mAPP5 exhibited relatively higher σ b (43.5 kPa), ε b (42.8%), compression stress (0.45 MPa), LOI (28.9%), and UL-94 grade (V-1) among the prepared composite materials. This research provides an effective strategy to fabricate silicone rubber composite with enhanced comprehensive performances.
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Du et al. (2025) studied this question.
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