Page 131 - 摩擦学学报2025年第9期
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第 9 期                  张欣悦, 等: 有序纤维增强水凝胶的构建及其力学、摩擦学性能研究                                     1385

                   1.6

                       (a)               0CF-unoriented               1.4  (b)
                   1.4    3000th                                            1th
                          10000th                                     1.2   10000th
                   1.2    50000th                                     1.0   50000th
                                                                            100000th
                          100000th
                                                                            300000th
                          300000th
                   Stress/MPa  1.0   500000th                        Stress/MPa  0.8  500000th
                          800000th
                                                                            800000th
                          1000000th
                                                                            1000000th
                   0.8
                   0.6                                                0.6
                   0.4                                                0.4
                                                                                            3CF-unoriented
                   0.2                                                0.2
                     18    19     20    21    22    23                  15  16   17   18   19  20   21
                                  Strain/%                                          Strain/%
                   1.4 (c)                                            24 (d)                     1th
                          1th                                                                    1000000th
                   1.2    10000th                                     22      1.15%
                          50000th
                          100000th
                  Stress/MPa  1.0  300000th                          Strain/%  20        2.3%
                          500000th
                          800000th
                   0.8
                          1000000th
                                                                      18
                   0.6
                                                                      16
                   0.4                     3CF-oriented               14                           1.92%
                   0.2
                     10   11   12  13   14   15  16                     0CF-unoriented 3CF-unoriented  3CF-oriented
                                  Strain/%
             Fig. 7    Compressive fatigue of the 3PC-C gels: the stress-strain curve of (a) 0CF unoriented 3PC-C gel, (b) 3CF unoriented 3PC-C
               gel and (c) 3CF oriented 3PC-C gel; (d) strain difference under the maximum stress of different hydrogels after 1 million cycles
             图 7    3PC-C gel的压缩疲劳性能:(a) 不定向0CF 3PC-C gel,(b) 不定向3CF 3PC-C gel和(c) 交错定向3CF 3PC-C gel的应力-应
                                     变曲线;(d) 不同水凝胶100万次循环后的最大应力下的应变差


                    (a)                            (b)                             (c)

                 0.05
                                                0.05  0.043  0.046   0.038     0.06
                Friction coefficient  0.03     Friction coefficient  0.03     Friction coefficient  0.05   20 N
                 0.04
                                                0.04
                                                                               0.04
                                                0.02
                                  0CF-unoriented
                 0.02
                                  3CF-unoriented
                                                                                          40 N
                                  3CF-oriented  0.01                           0.03       30 N

                                                                                         50 N
                                                0.00                           0.02
                                                     3CF-unoriented
                      0   1 000  2 000  3 000  4 000           3CF-oriented          0  1 000  2 000  3 000  4 000
                             Time/s          0CF-unoriented                                Time/s
                    (d)                            (e)                             (f)
                0.06                                                           0.05
                      0.05                      0.05                                0.040 0
                0.05       0.047  0.038  0.044                                 0.04     0.038 0  0.036 3  0.036 0
               Friction coefficient  0.03      Friction coefficient  0.04   2.5 mm/s  Friction coefficient  0.03
                0.04
                                                                               0.02
                0.02
                                                0.03
                                                                     5 mm/s
                0.01
                                                                     15 mm/s
                                                                               0.00
                0.00                            0.02                 10 mm/s   0.01
                      20    30    40    50           0   1 000  2 000  3 000  4 000  0.0  2.5  5.0  7.5 10.0 12.5 15.0
                             Loads/N                         Time/s                      Velocity/(mm/s)
             Fig. 8    The sliding tribological performance of the 3PC-C gels: (a) friction coefficient and (b) stable friction coefficient of different
             hydrogels; (c) friction coefficient and (d) stable friction coefficient under different loads of the staggered oriented 3CF 3PC-C gels;
                 (e) friction coefficient and (f) stable friction coefficient under different velocity of the staggered oriented 3CF 3PC-C gels
             图 8    3PC-C gel的滑动摩擦学性能:不同水凝胶的(a) 摩擦系数曲线和(b) 稳定摩擦系数;交错定向3CF 3PC-C gel在不同载荷
                  下的(c) 摩擦系数和(d) 稳定摩擦系数;交错定向3CF 3PC-C gel在不同速度下的(e) 摩擦系数和(f) 稳定摩擦系数
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