采用含CC双键的硅烷偶联剂对电气石粉体进行表面处理,进一步在其表面共聚接枝聚甲基丙烯酰氧乙基三甲基氯化铵(PDMC)。结果表明:当偶联剂改性电气石质量为1.0g,单体和引发剂用量分别为电气石质量的50.0%和2.0%,反应时间和温度分别为4h和75℃时,PDMC的接枝率为7.3%,红外光谱结果证实了电气石表面接枝了PDMC。表面未改性电气石的抗菌率为55.4%,其抗菌能力以抑菌为主;电气石表面接枝PDMC具有显著的协同抗菌作用,其抗菌能力主要表现为抑菌和杀菌,抗菌率高达94.2%。
A silane coupling agent with reactive CC double bond was used to treat surface of tourmaline powder.Further,polymethacrylatoethyltrimethyl ammonium chloride (PDMC) was grafted onto the surface of such silane modified tourmaline by free radical copolymerization.It is shown in the results that,when the mass of silane modified tourmaline was 1.0g,the dosage of monomer was 50.0% of tourmaline,the dosage of initiator was 2.0% of tourmaline,reaction time was 4h,reaction temperature was 75℃,the percent grafting of PDMC reached 7.3%.IR results confirmed that PDMC was grafted on the surface of tourmaline.The antibacterial rate of the unmodified tourmaline was 55.4%,and its antibacterial capability was mainly inhibition.The PDMC grafted tourmaline exhibited significant synergistic antibacterial effect.Its antibacterial capability was mainly inhibition and destruction,with an antibacterial rate of 94.2%.
[1] 刘权,胡应模,侯春燕,等.电气石类负离子释放材料的研究进展[J].化工新型材料,2018,46(4):9-11.
[2] Nakamura T,Kubo T.The tourmaline group crystals reaction with water[J].Journal of Ferroelectrics,1992,137(1-4):13-31.
[3] Tan Chong,Xu Haoran,Cui Di,et al.Effects of tourmaline on nitrogen removal performance and biofilm structures in the sequencing batch biofilm reactor[J].Journal of Environmental Sciences,2018,67(5):130-138.
[4] Meletios A D,Francesca G,Fredrik S,et al.Oral ixazomib maintenance following autologous stem cell transplantation (TOURMALINE-MM3):a double-blind,randomised,placebo-controlled phase 3 trial[J].The Lancet,2019,393(10168):253-264.
[5] Wang Da,Xu Haodan,Ma Jun,et al.Strong promoted catalytic ozonation of atrazine at low temperature using tourmaline as catalyst:influencing factors,reaction mechanisms and pathways[J].Chemical Engineering Journal,2018,354:113-125.
[6] Tzeng Jinghua,Weng Chihhuang,Lin Yuhao,et al.Synthesis,characterization,and visible light induced photoactivity of tourmaline-N-TiO2 composite for photooxidation of ethylene[J].Journal of Industrial and Engineering Chemistry,2019,80:376-384.
[7] Leonard D T,Altangerel A,Jiang Z,et al.Antibacterial tourmaline nanoparticles/polyurethane hybrid mat decorated with silver nanoparticles prepared by electrospinning and UV photoreduction[J].Current Applied Physics,2013,13(1):205-210.
[8] Altangerel A,Leonard D T,Michael T G R,et al.Inactivation of bacteria in batch suspension by fluidized ceramic tourmaline nanoparticles under oscillating radio frequency electric fields[J].Ceramics International,2013,39(2):2141-2145.
[9] 刘丹慧,林春香,刘明华.离子液体中壳聚糖的AGET ATRP改性及其抗菌性能研究[J].化工新型材料,2015,43(12):169-171.
[10] Li Jie,Xie Bing,Xia Kai,et al.Facile synthesis and characterization of cross-linked chitosan quaternary ammonium salt membrane for antibacterial coating of piezoelectric sensors.international Journal of Biological Macromolecules,2018,120:745-752.
[11] Gao Dangge,Zhang Jiahaog,Lyu Bin,et al.Poly(quaternary ammonium salt-epoxy) grafted onto Ce doped ZnO composite:an enhanced and durable antibacterial agent[J].Carbohydrate Polymers,2018,200:221-228.
[12] 唐莉,张跃军.聚甲基丙烯酰氧乙基三甲基氯化铵的合成[J].精细化工,2014,31(11):1324-1328.
[13] 陈燕燕,李明春,辛梅华,等.海因改性N-季铵化壳聚糖衍生物的合成及其抗菌性能[J].化工进展,2015,34(1):188-192.
[14] 张昕,乌学东,高保娇.硅胶接枝新型长链季铵盐抗菌材料制备及其抗菌性能[J].应用化学,2008,25(12):1455-1459.
[15] Mariano M,Manuela R,Francesco I,et al.The characterization of natural gemstones using non-invasive FT-IR spectroscopy:new data on tourmalines[J].Talanta,2018,178:147-159.
[16] 侯雷,徐如栗,于书尧,等.硬脂酸和硅烷偶联剂KH570对氧化钙疏水改性研究[J].环境科学学报,2016,36(3):960-965.
基金资助
福建省自然科学基金项目(2019J01808);莆田市科技计划项目(2018GP2001)
PDF
