Page 60 - 2019-13

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

Study on performance of superconducting carbon black/WRT filled EPDM

Wang Guozhi, Wang Yue, Kong Zhuang, Zhou Jia
（Xuzhou Vocational College of Industrial Technology, Xuzhou 221140, Jiangsu, China）
Abstract: EPDM was used as the matrix material, filled with different content of rubber powder and
superconducting carbon black. The properties of EPDM rubber powder filling variables were studied, and
the effects of different content of rubber powder on mechanical properties in EPDM were studied. As the
rubber powder increased from 40 to 80 phr, the maximum elongation of the rubber compound A1、A2、A3
decreased from 466% to 267%, and the maximum elongation of the rubber material B1、B2、B3 decreased
from 459% to 293%. ; A1、A2、A3 maximum intensity decreased from 4.58 MPa to 2.82 MPa, B1、B2、B3 rubber
intensity decreased from 3.72 MPa to 2.06 MPa; A1、A2、A3 permanent deformation is reduced from 32% to
24%, B1、B2、B3 permanent deformation is reduced from 40% to 32%; The 100% modulus of A1、A2、A3 is first
reduced to 1.73 MPa and then increased to 2.00 MPa, the 100% modulus of B1、 B2、 B3 rubber increases from 1.62
MPa to 1.87 MPa and then decreases to 1.55 MPa; The tear strength of the A1、A2、A3 test piece decreased
from 32.67 kN/m to 22.46 kN/m, and the B1、B2、B3 tear strength increased from 26.43 kN/m to 27.50 kN/m
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and then decreased to 17.50 kN/ m;A1、A2、A3 surface resistance decreased from 9×10 Ω to 3×10 Ω, B1、
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B2、B3 surface resistance decreased from 8×10 Ω to 2×10 Ω; A1、A2、A3 volume resistance decreased from
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6×10 Ω to 2 ×10 Ω, B1、B2、B3 volume resistance decreased from 7×10 Ω to 1×10 Ω. As the rubber powder is
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increased from 40 to 80 phr, when the rubber compound is flexed 5000 times, the A1 rubber compound has
no change, the A2 rubber compound has pinholes, and the A3 rubber compound breaks; When the rubber
compound is flexed 10000 times, the A1 rubber compound has pinholes, and the A2 rubber compound has
crack points, A3 rubber compound breaks. The flexing resistance is getting worse，and B1、B2、B3 were the
same as above.
Key words: EPDM; superconducting carbon black; surface resistance; rubber powder
（R-11)

德国马牌推出 SUV 轮胎新品
Continental launched new SUV tires

2019 年 6 月初，德国马牌发布旗下第六代全路况轮胎 CrossContactTM AX6，进一步完善 SUV 轮胎产品阵容。
近年来，随着中国 SUV 市场的快速发展，消费者对于高端 SUV 轮胎产品的需求与日俱增。大陆马牌轮胎（中
国）有限公司总经理戴立博 (Dalibor Kalina) 表示，新产品上市表明德国马牌轮胎看好中国市场。
未来，这家企业计划以细分需求为导向，持续深耕中国市场。
据介绍，马牌轮胎这款新产品，适用于各类 SUV 和四驱越野车型。目前，其在中国市场提供 15 个不同规格，
轮毂直径区于 16 ＂ ~20 ＂之间。
据了解，德国马牌轮胎乘用车与轻卡车胎业务，于 2006 年正式进入中国市场。
2018 年，德国马牌轮胎全球销售额为 114 亿欧元，拥有约 56 000 名员工。
这家轮胎制造商在亚太地区拥有多个生产基地，分别位于中国合肥、马来西亚八打灵再也和亚罗士打、印度
马杜赖，以及泰国罗勇府。
摘编自“轮胎世界网”
（R-03)

·12· 第 45 卷 第 13 期