Scratch-resistant and external-impact-resistant ion exchange glass and preparation method thereof

The invention relates to a scratch-resistant and external-impact-resistant ion exchange glass and a preparation method thereof. The glass comprises the following components in percentages by mass: 54%-70% of SiO2, 10%-23% of Al2O3, 0-5% of Li2O, 5%-17% of Na2O, 0-8% of K2O, 1%-10% of MgO, 0-4% of CaO, 1%-5% of ZrO2, 0.3%-1% of SnO2 and 0.2%-1.5% of CeO2. The preparation method comprises the following steps of step 1, preparing raw materials according to the components of the glass in percentages by mass, melting and clarifying the raw materials, and then molding the raw materials into the glass; and step 2, chemically strengthening the glass to obtain the scratch-resistant and external-impact-resistant ion exchange glass. Compared with soda-lime glass, the glass has stronger impact strength and surface scratch resistance, and has better protection capability on electronic products. 本发明一种抗划伤和抗外界冲击力的离子交换玻璃及其制备方法，所述玻璃的组分按质量百分比计包括，SiO54％～70％，AlO10％～23％，LiO 0～5％，NaO 5％～17％，KO 0～8％，MgO 1％～10％，CaO 0～4％，ZrO1％～5％，SnO0