CN107759076A

CN107759076A - A kind of safety glass and preparation method thereof

Info

Publication number: CN107759076A
Application number: CN201711241590.7A
Authority: CN
Inventors: 陆滔
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-30
Filing date: 2017-11-30
Publication date: 2018-03-06

Abstract

The invention discloses a kind of safety glass and preparation method thereof, it is made up of following components in percentage by weight：SiO₂：50~70%, Na₂O：5~12%, K₂O：2~8%, CaO：4~10%, B₂O_3‑：5~16%, Al₂O₃：0.1~1%, Fe₂O₃：0.1~1%, CeO₂：0.5~1.5%, SnCl₂：0.3~1.5%.Na has been used in inventive formulation₂O and K₂O makes the high temperature viscosity of glass reduce, the glass quality produced is high as cosolvent；Appropriate Fe is added in inventive formulation₂O₃And SnCl₂, have and absorb ultraviolet and infrared function well, and the B in formula₂O₃And Al₂O₃Composition improve the stability of glass structure well.

Description

A kind of safety glass and preparation method thereof

Technical field

The present invention relates to a kind of glassware, and in particular to a kind of heat endurance is good, the safety glass of high mechanical strength and Its preparation method.

Background technology

With the continuous development of economic technology, built every year in double growth and city high rise building with the quantity of car Construction, the particularly high-storey such as office building outside glass wall, for safety angle set out be required to use glass Material is safety glass, and high temperature resistant, the high voltage performance for safety glass have larger requirement.

Safety glass make it that production cost is high because processing technology is complicated at present, so as to cause safety glass general with respect to some Logical glass price is slightly higher.It is adhered together and does not have sharp in addition, the characteristics of existing safety glass maximum has been broken Water caltrop, but its heat endurance, radiation proof function and energy-saving heat preserving performance are relatively short of.With entering for glass working arts field , there are the various glass with energy-saving heat preserving effect in the market in step, such as in Application No. 201210158114.X State's patent of invention discloses a kind of energy-saving environment-friendly glass and preparation method thereof, and constitutive material is mainly SiO by it₂、Al₂O₃、 CaO、R₂O, MgO and Fe₂O₃Mixed in certain part by weight ratio, then pass sequentially through glass melter, glass shaping, annealing Obtain finished product.Than simple glass, temperature reduces by 20 DEG C to this kind of glass during fabrication, and its productivity ratio increases under the same terms, There is no NO₂Etc. poisonous, objectionable impurities, reach the purpose of environmental protection and energy saving, but suction of this kind of glass to ultraviolet and infrared ray Receipts are not strong, and light transmission rate is relatively low, it is impossible to play a part of anti-irradiation, heat-insulating sound-insulating well.

The content of the invention

For above-mentioned deficiency, the technical problems to be solved by the invention are to provide that a kind of heat endurance is good, mechanical strength Height, and safety glass of ultraviolet and infrared ray and preparation method thereof can be absorbed well.

To achieve the above object, the present invention is achieved through the following technical solutions：

A kind of safety glass, is made up of following components in percentage by weight：

SiO₂：50~70%, Na₂O：5~12%, K₂O：2~8%, CaO：4~10%, B₂O₃：5~16%, Al₂O₃： 0.1~1%, Fe₂O₃：0.1~1%, CeO₂：0.5~1.5%, SnCl₂：0.3~1.5%.

It is further preferred that the safety glass, can specifically be made up of following components in percentage by weight：

SiO₂：60%th, Na₂O：10%th, K₂O：5%th, CaO：6%th, B₂O₃：8%th, Al₂O₃：0.6%th, Fe₂O_3-：0.4%th, CeO₂：1%th, SnCl₂：0.8%.

The preparation method of above-mentioned safety glass, comprises the following steps：

1) each component material is weighed according to weight proportion, and be well mixed, then calcined mixed raw material, shape Into the glass metal of uniform bubble-free, the temperature of calcining is 1050~1100 DEG C, and pressure is 1100~1350Pa；

2) glass metal made from step 1) is put into kiln pond and melted, and the liquid level in glass metal and underrun Naked light is heated, and heating and temperature control between 1250~1500 DEG C, obtains glass melts again；

3) glass melts made from step 2) are subjected to tempering processing, obtain primary glass；

4) the processing glass after step 3) tempering is suppressed, blown, drawn and rolled, and pass through cold water pressure flush After cooling, produce.

Further, in step 3), the method for the tempering processing can be：After glass melts first are carried out into hot bending process Reach the shapes and sizes required during glass use；It is then placed in progress ion friendship in KNO3, K2CO3 and diatomaceous mixed salt Change, KNO3, K2CO3 and diatomaceous mixed salt are first heated to 370 DEG C~415 DEG C before tempering；Finally by the good glass of hot bending It is put into 7~13h in mixed salt fused solution and carries out ion exchange.

In such scheme, it is preferable that the mass percent of each component is KNO3 in the mixed salt：91%~97%, K2CO3：4%~7%, diatomite 4%~7%.

In such scheme, it is preferable that in step 4), the pressure of the cool water heating is 1.5~1.7KPa, and temperature is set to 18 ~30 DEG C.

Below to the restriction reason of safety glass each component of the present invention, all percentage is percetage by weight below.

SiO₂It is the main component for forming glass skeleton, the thermal coefficient of expansion of glass can be reduced, improves the thermostabilization of glass Property, chemical stability, softening temperature, heat resistance, hardness, mechanical strength and viscosity etc..But content is too low, the various performances of glass It can decline, too high levels, raw material is difficult to melt, therefore SiO in the present invention₂Content be 50~70%.

Na₂O is added as cosolvent, and the height that its introducing advantageously reduces glass is read, and can also increase the hot swollen of glass Swollen coefficient, the heat endurance, chemical stability and mechanical strength of glass are reduced, by testing its content as 5~12% more Properly.

K₂O is also to be added as cosolvent, and it can increase the gloss and transparency of glass, it is preferable that its content control System is between 2~8%.

CaO is that effect is to reduce the dispersion of glass in glass, improves the meltbility of glass, while can improve glass Transmitance.In inventive formulation, when its content is higher than 10%, it is difficult to high index of refraction is obtained, it is preferred that CaO's contains Amount is defined to 4~10%.

B₂O₃Composition is the indispensable composition of network former institute.But if its content is very few, devitrification resistance Property is insufficient；If its content is excessive, chemical stability is deteriorated.Therefore B₂O₃Content can preferably using 5% as lower limit, It is preferred that 16% contains as the upper limit.

Al₂O₃Composition can be greatly enhanced the chemical durability of glass, but when its content is excessive, liquidus temperature easily rises, together When glass average coefficient of expansion increase, easily occur the thermal stress as caused by cooling caused by crackle.It is preferred that Al₂O₃Content control between 0.1~1%.

Fe₂O₃There is strong absorption to ultraviolet, but content can excessively reduce the transparency and glossiness of glass, Therefore Fe₂O₃Content control between 0.1~1%.

CeO₂Oxidant is made in pyroreaction, you can weaken the colorability of iron with reducing iron oxides, can play again Clarification and the function of absorbing ultraviolet.But CeO₂Content can not be too high, too high easily to make the increase of high price iron content, glass is shown light Yellow, so CeO in the present invention₂Content be 0.5~1.5%.

SnCl₂It is colourless or white oblique system crystallization, relative density 2.71, fusing point 37.7, is decomposed under fusing point Hydrochloric acid and basic salt.Infusibility oxychloride is gradually oxidized in atmosphere.Or reducing agent, can will be most in glass Fe₂O₃FeO is reduced to completely.

Used glass tempering processing, is made from the mixed salt being mixed to prepare by KNO3, K2CO3 and diatomite to be changed Learn ion exchange principle be：The Na+ that KNO3 is provided in K+ and vitreum in ion exchange is interchangeable, due to K+ radius More than Na+, so as to form extrusion stress in vitreous surface, the intensity of glass is improved；K2CO3 and diatomite as additive into Point it is added in mixed salt, K2CO3 is with entering Ca2+, Mg2+ of fused salt with reference to prevent Ca2+, Mg2+ to the adverse effect that exchanges； Diatomite has good adsorption capacity, energy CO absorption 32- and the insoluble matter of Ca2+, Mg2+ generation, eliminates sediment to ion The shielding of exchange, so as to maintain glass surface to clean, exchange is set successfully to carry out.

Beneficial effects of the present invention are：

Na has been used in formula₂O and K₂O makes the high temperature viscosity of glass reduce, the glass object produced as cosolvent Matter is high；Appropriate Fe is added in inventive formulation₂O₃And SnCl₂, have and absorb ultraviolet and infrared ray, radiation proof well Effect；B in formula₂O₃And Al₂O₃Composition improve the stability and high mechanical strength of glass structure well；And adopt With preparation method, not only each performance indications of obtained safety glass are excellent, and method is simple, process is simple, production equipment requirement It is low.

Embodiment

The present invention is further explained with reference to specific embodiment, but does not limit the present invention.

5 embodiment such as following tables of the present invention, the numerical value being respectively formulated in table are weight percentage content.

As can be seen from the above table：The present invention has radiation-resistant performance, can consumingly absorb ultraviolet and infrared ray, heat Stability is preferable.

Claims

1. a kind of safety glass, it is characterised in that be made up of following components in percentage by weight：

SiO₂：50~70%, Na₂O：5~12%, K₂O：2~8%, CaO：4~10%, B₂O₃：5~16%, Al₂O₃：0.1~ 1%th, Fe₂O₃：0.1~1%, CeO₂：0.5~1.5%, SnCl₂：0.3~1.5%.

2. safety glass according to claim 1, it is characterised in that be made up of following components in percentage by weight：

SiO₂：60%th, Na₂O：10%th, K₂O：5%th, CaO：6%th, B₂O₃：8%th, Al₂O₃：0.6%th, Fe₂O₃：0.4%th, CeO₂： 1%th, SnCl₂：0.8%.

3. the preparation method of safety glass according to claim 1 or 2, it is characterised in that comprise the following steps：

1) each component material is weighed according to weight proportion, and be well mixed, then calcined mixed raw material, formed equal The glass metal of even bubble-free, the temperature of calcining is 1050~1100 DEG C, and pressure is 1100~1350Pa；

2) glass metal made from step 1) is put into kiln pond and melted, and in the liquid level and underrun naked light of glass metal Heated, heating and temperature control between 1250~1500 DEG C, obtains glass melts again；

4) the processing glass after step 3) tempering is suppressed, blown, drawn and rolled, and cooled down by cold water pressure flush Afterwards, produce.

4. the preparation method of safety glass according to claim 3, it is characterised in that in step 3), the tempering processing Method be：The shapes and sizes that will first be required when reaching glass use after glass melts progress hot bending process；It is then placed in Ion exchange is carried out in KNO3, K2CO3 and diatomaceous mixed salt, first adds KNO3, K2CO3 and diatomaceous mixed salt before tempering Heat is to 370 DEG C~415 DEG C；The good glass of hot bending is finally put into 7~13h in mixed salt fused solution and carries out ion exchange.

5. the preparation method of safety glass according to claim 4, it is characterised in that：:The matter of each component in the mixed salt Amount percentage is KNO3：91%~97%, K2CO3：4%~7%, diatomite 4%~7%.

6. the preparation method of safety glass according to claim 3, it is characterised in that in step 4), the cool water heating Pressure be 1.5~1.7KPa, temperature is set to 18~30 DEG C.