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从中国专利分析船舶防污涂料的发展趋势 总被引:3,自引:0,他引:3
结合1985-2006年关于防污涂料方面的中国专利的信息,介绍了从传统型防污涂料到新型无毒防污涂料的重要研究成果,以及防污剂的开发成果,探讨了防污涂料的发展趋势. 相似文献
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海洋船舶无毒、低毒防污涂料的研究进展 总被引:3,自引:1,他引:2
介绍了现代海洋船舶防污涂料的研究和应用情况,分别阐述了电化学防污涂料、化学活性物质释放型防污涂料和非化学活性物质释放型防污涂料的原理及其应用进展,并着重介绍了无毒低毒防污剂及防污涂料,指出长效、无毒的防污涂料将是未来涂料的发展方向。 相似文献
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《Ceramics International》2020,46(10):15915-15924
To reduce the friction coefficient of WC-17Co wear-resistant coatings, Graphene oxide were used to mix with WC-17Co powder. The SEM, EDS and Raman results were used to analyze the morphology and phase composition of graphene oxide in the powder and coating obtained by plasma spraying processes. The mechanical properties of the coatings were studied by using a microhardness tester and a universal testing machine. The friction and wear properties of the coatings were studied by using a UMT-2 friction and wear tester. The results show that among the pulverization processes, the spray granulation process can achieve a stronger and more uniform adhesion of graphene oxide on the surface of WC-17Co particles, and the graphene oxide content in the coating is higher. Graphene is still embedded in the coating as transparent, thin sheets. The bonding strength is approximately 63 MPa, the hardness is approximately 931 HV0.1, and the friction coefficient of the graphene oxide coating is reduced by approximately 22% compared to that of the coating without graphene. The formation of lubrication films in the micro-area improves the self-lubrication and antiwear effects. 相似文献
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《Ceramics International》2017,43(4):3601-3609
ZrC coatings with different contents of LaB6 for SiC-coated carbon/carbon composites were fabricated by supersonic atmosphere plasma spraying. The mechanism of gas evolution during oxidation at ultra-high temperatures and the oxide scale structure evolution of the coating after addition of LaB6 with different contents were studied. Results showed that rare earth borate rather than rare earth oxide mainly reduced the melting resistance of the oxide scale. The oxide scale for ZrC coating with 10% LaB6 was unfavorable to the gas escape. After addition of 20% LaB6, the oxide scale was favorable to the gas escape but disadvantageous to the coating applied in the environment containing scouring because of the reduced melting resistance. High content of LaB6 also could cause evident boiling of B2O3, leading to producing big pores in the oxide scale during ablation. Appropriate content of LaB6 for ZrC coating was found to be 15%. 相似文献
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磷酸锌/云铁灰环氧涂层防腐性能的研究 总被引:1,自引:0,他引:1
选用磷酸锌为主要防锈颜料,协同云母氧化铁灰,制备无溶剂型环氧防腐涂料.考察涂层的基本性能,并采用交流阻抗(EIS)测试技术,分析了颜料体积浓度(PVC)、活性稀释剂和防锈颜料质量比对涂层防腐性能的影响.实验结果表明:该涂料固含量高达98%以上,是环境友好型涂料;PVC小于12%时,涂层具有较好的防腐性能;PVC为8%,活性稀释剂添加量为2%,云铁灰与磷酸锌质量比为1:4时涂层的防腐性能最佳.在涂层浸泡一定时间后,磷酸锌能防止腐蚀的进一步发生,起到有效抑制腐蚀的作用. 相似文献