and then,
MDI (10.10) was added into the mixture with continuous
stirring. Not until the white foam arises, the mixture is
poured into the mold. The container was then placed on a
flat surface for 5 h at 70 C. The content of flame retardant
is at a mass of 7.4, 10.7, 13.7 and 16.7 %, respectively. The
formulation of PU composites is presented in Table 1.
Samples were put into specific shapes as per the test
requirement, and the foam properties were then measured
and then,MDI (10.10) was added into the mixture with continuousstirring. Not until the white foam arises, the mixture ispoured into the mold. The container was then placed on aflat surface for 5 h at 70 C. The content of flame retardantis at a mass of 7.4, 10.7, 13.7 and 16.7 %, respectively. Theformulation of PU composites is presented in Table 1.Samples were put into specific shapes as per the testrequirement, and the foam properties were then measured
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