Study on properties of advanced resin matrix composites for valve body manufacturing

doi:10.19491/j.issn.1001-9278.2022.08.003

Abstract

Abstract:

In this article， the effect of modification methods on the mechanical properties of phenolic bulk film plastics （BMC）， phenolic sheet film plastics （SMC） and vinyl SMC materials were studied， and the interaction mechanism of modification for the resin matrix and fiber phase was analyzed quantitatively. The optimal mechanical properties were obtained for the composites， and the feasibility for manufacturing the valve body using different composites was verified by simulation analysis. The results indicated that the vinyl SMC material achieved optimal tensile properties， but the phenolic SMC showed the worst one. On the other hand， the phenolic BMC material showed the optimal bending mechanical properties， whereas the phenolic SMC showed the worst ones. In summary， the vinyl SMC exhibited the best comprehensive mechanical properties. The tensile strength， tensile modulus， flexural strength， and flexural modulus of the vinyl SMC reached 148.255 MPa， 4.50 GPa， 92.33 MPa， and 2.39 GPa respectively at a molding temperature of 160 ℃， a molding pressure of 9 MPa， and a holding time of 30 min. The valve body statics analysis results showed that both the vinyl SMC and the phenolic BMC could meet a requirement for the manufacture of the valve body.

Key words: resin matrix composite material, molding process, valve body, modification, microanalysis

CLC Number:

TQ323.1

YU Jiuyang, WANG Zhonghao, CHEN Qi, XIA Yazhong. Study on properties of advanced resin matrix composites for valve body manufacturing[J]. China Plastics, 2022, 36(8): 16-22.

Figures/Tables 13

References 12

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样品	断裂区厚度/mm	断裂区宽度/mm	最大力/N	拉伸强度/MPa	拉伸模量/MPa
F⁃SMC⁃1	4.49	10.10	1 905.59	42.02	2 634.67
F⁃SMC⁃2	4.72	10.02	2 059.36	43.54	2 399.09
F⁃BMC⁃1	4.31	9.90	2 172.86	50.92	2 543.20
F⁃BMC⁃2	4.63	10.20	3 394.33	71.87	2 592.01
F⁃BMC⁃3	4.16	9.80	2 281.63	55.97	2 695.08
Y⁃SMC⁃1	4.38	10.20	6 755.16	151.20	2 616.43
Y⁃SMC⁃2	5.16	10.12	6 294.36	120.54	2 131.52

样品	断裂区厚度/mm	断裂区宽度/mm	最大力/N	拉伸强度/MPa	拉伸模量/MPa
F⁃SMC⁃1	4.49	10.10	1 905.59	42.02	2 634.67
F⁃SMC⁃2	4.72	10.02	2 059.36	43.54	2 399.09
F⁃BMC⁃1	4.31	9.90	2 172.86	50.92	2 543.20
F⁃BMC⁃2	4.63	10.20	3 394.33	71.87	2 592.01
F⁃BMC⁃3	4.16	9.80	2 281.63	55.97	2 695.08
Y⁃SMC⁃1	4.38	10.20	6 755.16	151.20	2 616.43
Y⁃SMC⁃2	5.16	10.12	6 294.36	120.54	2 131.52

样品	断裂区厚度/mm	断裂区宽度/mm	最大力/N	弯曲强度/MPa	弯曲模量/MPa
F⁃SMC⁃1	4.71	15.12	102.62	29.37	375.73
F⁃SMC⁃2	4.40	15.54	119.46	38.12	1 780.98
F⁃BMC⁃1	4.32	15.18	169.71	58.35	3 346.75
F⁃BMC⁃2	4.58	14.95	171.93	54.70	2 680.74
F⁃BMC⁃3	4.29	15.10	210.32	75.80	3 571.89
Y⁃SMC⁃1	4.33	15.03	197.52	67.29	2 332.62
Y⁃SMC⁃2	4.56	15.09	247.74	75.80	2 868.76

样品	断裂区厚度/mm	断裂区宽度/mm	最大力/N	弯曲强度/MPa	弯曲模量/MPa
F⁃SMC⁃1	4.71	15.12	102.62	29.37	375.73
F⁃SMC⁃2	4.40	15.54	119.46	38.12	1 780.98
F⁃BMC⁃1	4.32	15.18	169.71	58.35	3 346.75
F⁃BMC⁃2	4.58	14.95	171.93	54.70	2 680.74
F⁃BMC⁃3	4.29	15.10	210.32	75.80	3 571.89
Y⁃SMC⁃1	4.33	15.03	197.52	67.29	2 332.62
Y⁃SMC⁃2	4.56	15.09	247.74	75.80	2 868.76

样品	断裂区厚度/mm	断裂区宽度/mm	最大力/N	拉伸强度/MPa	拉伸模量/MPa
F9T2	4.37	10.27	6 840.91	152.43	3 129.92
F7T3	4.38	10.14	6 039.29	135.98	5 017.69
F9T3	4.34	10.29	6 620.84	148.26	4 502.11
F11T3	4.39	10.21	5 851.96	129.80	3 330.62
F9T4	4.33	10.40	5 945.65	132.03	5 001.20