Anti-fatigue low-temperature-resistant nylon composite material as well as preparation method and application thereof

• Main Authors: YU HAOYONG, SHI YIKANG, LI ZIRUI, LI YANSHAN, DONG QUANXIAO, CAO JIANWEI, ZHANG HUAN, BAO LINHENG, BAO XINGXU, YAN SIMENG, WEI YONGWANG, CHANG JIE, ZHANG LING, WANG ZHAO, SONG TIANTIAN, QIU PENG, XIAO JUNHENG, ZHAO SHUNQIANG, ZHANG YUANQING, GAO WEIFENG, JIA HONGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2024
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to the technical field of nylon materials for railway fastener systems, in particular to an anti-fatigue low-temperature-resistant nylon composite material and a preparation method and application thereof.The nylon composite material is prepared from, by weight, 30-60 parts of nylon 66, 20-40 parts of core-shell particles, 20-35 parts of glass fibers, 5-20 parts of a nylon toughening agent, 0.2-1.0 part of a nylon dispersing agent and 1-2 parts of a nylon compatilizer. 2-5 parts of a nylon heat stabilizer and 0.2-0.8 part of an antioxidant. The nylon composite material has high fatigue resistance and low temperature resistance, and can be applied to an environment of-50 DEG C; in addition, when the nylon composite material is applied to the baffle seat, the baffle seat is high in impact resistance and fatigue resistance after being boiled and humidified. 本发明涉及铁路扣件系统用尼龙材料技术领域，尤其涉及一种抗疲劳耐低温尼龙复合材料及其制备方法和应用，尼龙复合材料包含按重量份数计的以下组分：尼龙66 30~60份，核壳粒子20~40份，玻璃纤维20~35份，尼龙增韧剂5~20份，尼龙分散剂0.2~1.0份，尼龙相容剂1~