Page 120 - 摩擦学学报2025年第10期

第 10 期 刘家昌, 等: SBR/NR/TRR翻新轮胎再生橡胶复合材料的摩擦学特性及机理研究 1517

80
(a) (b)
70 42
60 38
Worn mass/mg 40 Temperature/℃ 34
50

30
20 30
TRR 0 26 TRR 0
10 TRR 10 TRR 10
0 22
5 10 15 20 25 5 10 15 20 25
Slip ration/% Slip ration/%
Fig. 9 (a) Wear mass and (b) temperature of composite rubber wheels under different slip rates
图 9 不同滑移率下复合橡胶轮的(a) 磨损质量和(b) 温度

(a-5%) (a-10%) (a-15%) (a-20%) (a-25%)

200 μm
200 μm 200 μm Rolling direction 200 μm 200 μm

(b-5%) (b-10%) (b-15%) (b-20%) (b-25%)

200 μm
200 μm 200 μm Rolling direction 200 μm 200 μm

Fig. 10 Micrographs of surface wear morphology of (a) TRR 0 and (b) TRR 10 under different slip rates
图 10 不同滑移率下(a) TRR 0 和(b) TRR 10 的表面磨损形貌照片

NR breaking chain SBR breaking chain

Mass ratio of NR:SBR=3.7
SBR molecular chain NR molecular chain TRR molecular chain
Assembling and modeling
Rubber shear model
45 Å
45 Å Substrate sliding derection

45 Å
SBR/NR/TRR Vulcanized model
45 Å 45 Å

H C S Al
8.6 Å
Atomic types Aluminum substrate Molecular dynamics model for rubber friction
Fig. 11 MD molecular dynamics modeling process of SBR/NR/TRR retreaded composite rubber
图 11 SBR/NR/TRR翻新复合橡胶MD分子动力学建模过程