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潘颖, 赵红挺

Preparation of Halloysite Based Layer-by-Layer Coating on Flexible Polyurethane Foam and Its Performance of Flame Retardant and Smoke Suppression

PAN Ying, ZHAO Hongting

图7 PU-1、PU-2和PU-3的Cone测试完炭渣扫描电子显微镜图

Fig.7 SEM images of PU-1 (a, d), PU-2 (b, e) and PU-3 (c, f) after cone tests