A two-step chemically strengthened alkali-aluminosilicate glass composition and its preparation method
A technology of glass composition and alkali-aluminosilicate, applied in the field of glass materials, can solve the problems of insufficient Li ion and Na ion exchange capacity, difficulty in quickly obtaining high DOL value strengthened glass, etc., and achieve the effect of improving surface hardness
Active Publication Date: 2021-05-04
KORNERSTONE MATERIALS TECH
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
If Li in the glass 2 O content is too low, Li ion and Na ion exchange capacity is insufficient, and contains NaNO 3 Once the Li ions in the molten salt are too high, the exchange of Li ions and Na ions almost stops, so it is difficult to quickly obtain high DOL value strengthened glass
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
example 1-10
[0046] Table 1 Example 1-10 glass composition
[0047]
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technical field of glass materials, and in particular relates to a two-step chemically strengthened alkali-aluminosilicate glass composition and a preparation method thereof. The two-step chemically strengthened alkali-aluminosilicate glass composition comprises: 53-65% SiO in mole percent 2 , 16‑22% Al 2 o 3 , 0.01‑0.5% of B 2 o 3 , 4‑8% Li 2 O, 8‑14% Na 2 O, 0.01‑1% of K 2 O, 0.01‑3% MgO, 0‑1% ZnO, 0‑4% P 2 o 5 , 0‑0.1% SnO 2 The present invention enters the composition of lithium and phosphorus in the glass by optimizing the glass formula, and through the two-step chemical strengthening, the glass has a higher surface compressive stress and a deeper ion exchange layer, thereby improving the surface hardness and resistance of the glass. Scratch and drop resistance.
Description
technical field [0001] The invention belongs to the technical field of glass materials, and in particular relates to a two-step chemically strengthened alkali-aluminosilicate glass composition and a preparation method thereof. Background technique [0002] With the development and demand of the touch screen and display market, the rapid development and demand of touch screen and display cover glass have been driven. With people's pursuit of the appearance and performance of mobile terminal devices such as smart phones, the cover glass is gradually transitioning from the traditional 2D shape to 2.5D and 3D shapes. This also puts forward more stringent requirements on the performance of the cover glass used to protect the screen. However, the strength of ordinary silicate glass still cannot meet the needs of daily use, such as repeated drops of mobile phones and collisions with sharp objects, etc., will cause damage to the screen. The cover glass is required to have high fra...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/097C03C21/00
CPCC03C3/097C03C21/002
Inventor 梁新辉陈招娣杨成钢洪立昕
Owner KORNERSTONE MATERIALS TECH