Ethylene - propylene - diene rubber ( EPDM ) was filled with nano - CaCO 3 which was in - situ modified by methacrylic acid ( MAA ).

使用甲基丙烯酸 ( MAA ) 原位改性纳米CaCO3填充三元乙丙橡胶 ( EPDM ),制备了纳米CaCO3增强EPDM硫化胶.

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The preparation of St - MAA concentrated emulsion by one step method is investigated.

本文用一步法制得了稳定的苯乙烯一甲基丙烯酸超浓乳液.

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Lambs on the bus sing. Maa! Maa! Maa!

小羊羔在公共汽车上唱歌. 咪! 咪! 咪!

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