CAJ | 학술논문

以纳米TiO2、壳聚糖双胍盐酸盐为抗菌剂,加以胶黏剂羧基丁苯胶乳、分散剂六偏磷酸钠、消泡剂叔丁醇,制备了TiO2/壳聚糖纳米复合涂料,利用SEM、FT-IR对涂料的微观形貌和基本结构进行了表征。以表面涂布方式将TiO2/壳聚糖纳米复合涂料施涂于纸张表面,制得涂布抗菌纸,对涂布抗菌纸的微观结构及抗菌性能进行了研究。结果表明,经TiO2/壳聚糖纳米复合涂料涂布后,纸张具备较强的抗菌性能;而且,实验发现,随着涂料体系中壳聚糖组分的不断增加,涂布纸的抗菌性能逐渐提高。当纳米TiO2/壳聚糖的加入比例为1∶1时,双层涂布后的纸张对大肠杆菌和金黄色葡萄球菌的抗菌率分别达到86.55%和92.19%。
이납미TiO2、각취당쌍고염산염위항균제,가이효점제최기정분효유、분산제륙편린산납、소포제숙정순,제비료TiO2/각취당납미복합도료,이용SEM、FT-IR대도료적미관형모화기본결구진행료표정。이표면도포방식장TiO2/각취당납미복합도료시도우지장표면,제득도포항균지,대도포항균지적미관결구급항균성능진행료연구。결과표명,경TiO2/각취당납미복합도료도포후,지장구비교강적항균성능;이차,실험발현,수착도료체계중각취당조분적불단증가,도포지적항균성능축점제고。당납미TiO2/각취당적가입비례위1∶1시,쌍층도포후적지장대대장간균화금황색포도구균적항균솔분별체도86.55%화92.19%。
TiO2/chitosan nanocomposited coatings was prepared by the combination of nanosized TiO2,chitosan biguanidine hydrochloride,SBR latex and other additives.The surface structure of TiO2/chitosan nanocomposited coating samples was characterized by SEM and FT-IR techniques.A new method of antibacterial coated paper based on the TiO2/chitosan nanocomposited coatings was carried out,and the microstructure and antibacterial properties of coated paper was characterized.It was shown that there was a significant increase in antibacterial properties when the paper was coated by TiO2/chitosan nanocomposited coatings.It was especially illustrated that with the increase of chitosan biguanidine hydrochloride amount in paper coatings,the antibacterial properties of coated paper can be persistently improved.When the proportion of TiO2,chitosan in nanocomposited coatings was equal,the antibacterial efficiency of coated paper to escherichia coli and staphylococcus aureus could attain to 86.55% and 92.19%,respectively.