【摘要】：為了揭示膠礬水熟化書畫用宣紙的科學內(nèi)涵,通過膠礬水固化性能、墨滴暈散實驗揭示明礬在膠料固化及抗墨滴暈散中所起到的作用。利用掃描電子顯微鏡(SEM)、高場~(27)Al核磁共振波譜(~(27)Al-NMR)和紅外光譜(ATR-FTIR)研究膠與礬在熟化宣紙時各自的作用及協(xié)同效應。最后,通過濕熱老化實驗探討明礬的負面影響。結(jié)果表明:1)明礬作為促干劑加速了膠水凝聚固化;作為軟化劑增加了膠料彈性。2)明礬也可作為助留劑,起到墨滴助留作用。施加膠礬水的宣紙抗墨滴暈散性能優(yōu)于單純的膠水或礬水;有膠無礬時,墨跡浮在紙上,存在大量微孔,易漏墨。3)SEM、~(27)Al-NMR和FTIR分析表明,膠和礬在提高宣紙憎水性及抗墨滴暈散性能方面可起到協(xié)同作用。明礬以單核物Al(H_2O)_6~(3+)、AlSO_4~+,高聚物Al_(30)([Al_(30)O_8(OH)_(56)(H_2O)_(24)]~(18+))等形式與明膠的羥基或羧基鍵合,形成的緊密網(wǎng)絡結(jié)構(gòu)加強了膠料的交聯(lián),提高了膠料的抗水性。同時,鋁離子可起到橋聯(lián)作用,將帶負電的明膠粒子轉(zhuǎn)化為帶正電的明膠粒子,促使明膠微粒沉淀在帶負電的纖維表面。4)明礬用量越大,濕熱老化后酸性越強,紙張越脆,嚴重威脅紙張的壽命。因此,傳統(tǒng)膠礬水在熟化紙張時可起到促干劑、軟化劑及助留劑的功能,但用量越大,紙張酸化越嚴重,建議研發(fā)可替代膠礬水的新一代施膠劑。
[Abstract]:In order to reveal the scientific connotation of Xuan paper used in the water curing of colloidal alum, the effect of alum on curing and anti-ink dizziness is revealed through the curing performance of colloidal alum and the experiment of ink drop halo powder. Scanning electron microscope (SEM) (SEM), high field ~ (27) Al nuclear magnetic resonance spectroscopy (~ (27) Al-NMR) and infrared spectroscopy (ATR-FTIR) were used to study the effects and synergistic effects of rubber and alum on the curing of rice paper. Finally, the negative effect of alum was discussed through the experiment of damp and heat aging. The results showed that: (1) Alum accelerated agglomeration and solidification of glue as drying promoter, and increased elasticity of glue as softener (.2) Alum could also be used as retention aid, which could be used as ink dripping aid. The anti-blooming property of Xuan paper with colloid water is better than that of pure glue or alum water, and when there is glue or alum, ink blots float on the paper with a large number of micropores. 3) SEM27 Al-NMR and FTIR analysis show that, Glue and alum play a synergistic role in improving the hydrophobicity of Xuan paper and its anti-blooming properties. Alum is bonded with the hydroxyl or carboxyl groups of gelatin in the form of Al (H _ 2O) _ 6 ~ (3) C _ (3) Also _ 4 ~, Al _ (30) ([Al _ (30) O _ (8) (OH) _ (56) (H _ 2O) _ (24)] ~ (18), etc. At the same time, aluminum ions can act as a bridge by converting negatively charged gelatin particles into positively charged gelatin particles, which promote gelatin particles to be precipitated on the surface of negatively charged fibers (.4) the larger the amount of alum, the stronger the acidity after hydrothermal aging, and the more brittle the paper is. A serious threat to the life of paper. Therefore, the traditional alum water can be used as a drying promoter, softener and retention aid when the paper is aged, but the bigger the dosage is, the more serious the acidification of the paper is. It is suggested that a new generation of sizing agent can be developed instead of gum alum water.
【作者單位】： 西北大學文化遺產(chǎn)學院文化遺產(chǎn)研究與保護技術(shù)教育部重點實驗室;首都博物館文物保護修復部"北京文博文物科技保護研究與運用"北京市重點實驗室;
【基金】：北京市科委課題資助(Z161100002416020) 北京市優(yōu)秀人才培養(yǎng)計劃資助(2014000020044G003)
【分類號】：J212.6;TS727.5

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