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橡塑技术与装备 CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT

（2）随聚合时间的增加，两种体系产品固含量逐 备高性能氢化丁腈橡胶 [J]. 合成橡胶工业，2021,44(05):347-
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渐增加，体系 B 在反应中后期的固含量大于 A 体系。
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（4）随着反应时间的增加或者降低，NBR 产品的
and random copolymers with isoprene via redox-emulsion
门尼黏度升高或降低。
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Study on the synthesis of nitrile rubber by low temperature emulsion
technology and its properties (1)

Polymerization part

Wang Fei, Li Changhao *
(INSA GPRO (Nanjing) Synthetic Rubber Co. LTD., Nanjing 210047, Jiangsu, China)

Abstract: This paper firstly introduces the basic polymerization principle of nitrile rubber synthesized
by low temperature emulsion technology, and also introduces the basic process parameters and control
of NBR production in chemical plants. Finally, NBRs of two emulsion systems were prepared using factory
equipment, and the basic parameters for the reaction and its synthesis were explored. The results showed
that with the increase of polymerization time, the solid content of the two systems gradually increased, and
the solid content of system B was greater than that of system A in the middle and late reaction stages. As
the polymerization temperature increases or decreases, the Mooney viscosity of NBR products increases or
decreases. As the reaction time increases or decreases, the Mooney viscosity of the NBR product increases or
decreases.
Key words: low temperature emulsion polymerization; NBR latex; Mooney viscosity
(R-03)

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