03027nas a2200481   4500000000100000000000100001000000100002008004100003260000800044653001400052653002000066653001800086653001800104653001500122653001200137653001900149653002500168653003400193653001900227653001400246653001900260653001900279653001000298653002200308653001900330653001900349653001300368653001900381653002400400653001200424653002100436653002400457100001800481700001700499700001700516700002200533245014800555856014300703300001600846490000600862520165700868022002002525       2019                            d  cdec10aCellulose10aCellulose fiber10aContact Angle10aContact angle10aDurability10aHistory10aHydroxyapatite10aHydroxyapatite (HAp)10aIntangible cultural heritages10aNanocomposites10aNanowires10aNatural Fibers10aNatural fibers10aPaper10aSuper-hydrophilic10aTextile Fibers10aTextile fibers10aTextures10aUnited Nations10aWater contact angle10aWetting10aWetting behavior10aWetting performance1 aYue-Ting Shao1 aYing-Jie Zhu1 aLi-Ying Dong1 aQiang-Qiang Zhang00aA new kind of nanocomposite Xuan paper comprising ultralong hydroxyapatite nanowires and cellulose fibers with a unique ink wetting performance  uhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85076680796&doi=10.1039%2fc9ra08349a&partnerID=40&md5=3c02ef61487092d028c9dc48efcb3bc0  a40750-407570 v93 aIn the history of civilization, Xuan paper with its superior texture, durability and suitable characteristics for writing and painting, has played an important role in the dissemination of culture and art. Xuan paper has won the reputation of "the king of paper that lasts for 1000 years" and was inscribed on the Representative List of the Intangible Cultural Heritage of Humanity by the Educational, Scientific and Cultural Organization of the United Nations in 2009. However, the surface of the commercial unprocessed Xuan paper has a large number of large-sized pores with a poor resistance to water, allowing ink droplets to easily spread during the writing and painting process. In this study, we report a new kind of nanocomposite Xuan (HNXP) paper comprising ultralong hydroxyapatite (HAP) nanowires and plant cellulose fibers with unique ink wetting performance, high whiteness and excellent durability. The as-prepared HNXP paper sheets with various weight ratios of ultralong HAP nanowires ranging from 10\% to 100\% are all superhydrophilic with a water contact angle of zero. In contrast, the ink contact angle of the HNXP paper can be well controlled by adjusting the weight ratio of ultralong HAP nanowires, and the ink contact angle of the HNXP paper increases with increasing weight ratio of ultralong HAP nanowires. The experimental results show the unique ink wetting behavior of the as-prepared HNXP paper, which is absent in the traditional Xuan paper. This new kind of nanocomposite Xuan paper comprising ultralong hydroxyapatite nanowires and plant cellulose fibers is promising for applications in calligraphy and painting arts.  a20462069 (ISSN)