一次定伸长拉伸弹性测试条件：测试隔距20mm，拉伸速度为 10 mm/

Tensile elasticity test conditions at a constant elongation: the test gauge is 20mm, the tensile speed is 10 mm/min, the selected three constant elongations are set to 5%, 10% and 15% respectively, and the tensile rest time is 30s, the rest time is 30s, and the pre-tension of the sample is 0.25cN.

One-time elongation stretch elastic test conditions: test space 20mm, stretch speed of 10 mm /min, selected 3 fixed elongation rate is set to 5%, 10% and 15%, stretch stop time is 30s, return stop time is 30 s, the pre-set tension of the specimen is 0.25cN.

The test conditions of one time constant elongation tensile elasticity are as follows: the test interval is 20 mm, the tensile speed is 10 mm / min, the three selected constant elongation are set as 5%, 10% and 15%, the tensile stop time is 30s, the recovery stop time is 30 s, and the pre tension of the sample is 0.25cn.