59results about How to "Small expansion coefficient" patented technology

The invention relates to the technical field of aerospace propulsion, in particular to an ion rocket engine topological structure based on a carbon fiber composite material, which comprises a grid shell, a discharge shell, a gas circuit shell, a cover plate, a discharge cylinder and a neutralizer outer cover, wherein the grid shell, the discharge shell, the gas circuit shell, the cover plate, the discharge cylinder and the neutralizer outer cover are all prepared based on a carbon fiber composite material; the grid shell is fixedly connected with the front end of the discharge shell; the rear end of the discharge shell is fixedly connected with the front end of the gas circuit shell; the cover plate is fixed at the rear end of the gas circuit shell; the discharge cylinder is arranged in the discharge shell; and the neutralizer outer cover is fixed on the side surface of the discharge shell. The outstanding advantages of good mechanical property, excellent conductivity, small expansion coefficient and low density of the carbon fiber composite material are fully utilized, and the technical problems of high-temperature working reliability, performance level satisfaction and stability of the medium-high power ion rocket engine are solved.

The invention provides a three-dimensional continuous diamond / metal composite material as well as a preparation method and application thereof, and more specifically, the three-dimensional continuous diamond / metal composite material is constructed by a three-dimensional continuous diamond network and a metal network in an interpenetrating manner, the three-dimensional continuous diamond network is formed by connecting diamond particles with silicon carbide protective layers formed on the surfaces through diamond-silicon carbide phase boundaries; wherein the metal in the metal network is copper, aluminum, magnesium, copper alloy, aluminum alloy or magnesium alloy. The preparation method provided by the invention also solves the problem of preparation of the porous blank of the diamond material and the interface protection layer. The prepared composite material not only has adjustable diamond volume fraction, high thermal conductivity, low expansion and high strength, but also meets the requirements of low cost and short-process rapid preparation, and shows wide application prospects in the fields of heat dissipation materials, wear-resistant materials, functional structure integrated materials, bulletproof materials and the like.

The invention belongs to the field of cast-in-situ bored piles, and relates to a cast-in-situ bored pile steel casing lifting device and method which can reduce the difficulty of taking out a steel casing and protect the steel casing. The cast-in-situ bored pile steel casing lifting device comprises a lifting unit and a vibration unit. The lifting unit is configured to lift the steel casing, and the vibration unit is configured to send high-frequency vibration waves to the steel casing. The cast-in-situ bored pile steel casing lifting method comprises the step that the upper end of a steel casing is fixedly connected with a lifting unit. The lifting unit applies upward lifting force to the steel casing, the lifting force is gradually increased, and when the lifting force is the same as the gravity of the steel casing, high-frequency vibration is applied to the steel casing located above the ground, so that the whole steel casing generates high-frequency vibration. And the lifting force is continuously and gradually increased, so that the steel casing is gradually lifted upwards.

The invention discloses an aluminum oxide and aluminum nitride composite electrostatic chuck which comprises a metal base, an aluminum oxide ceramic structural part, an aluminum nitride ceramic dielectric layer, a heating layer and an adsorption electrode layer. The aluminum oxide ceramic structural member is coated outside the metal base, and the aluminum nitride ceramic dielectric layer comprises a first dielectric layer, a second dielectric layer and a third dielectric layer. The aluminum oxide ceramic structural member is coated outside the metal base, and the aluminum oxide ceramic structural member has the characteristics of high temperature resistance, corrosion resistance and wear resistance, so that the corrosion of plasmas to the metal base can be effectively shielded, and meanwhile, particulate pollutants are not generated to pollute a wafer; according to the composite electrostatic chuck, the aluminum nitride ceramic dielectric layer is arranged, and the aluminum nitride ceramic dielectric layer has excellent heat-conducting property and temperature uniformity, so that the composite electrostatic chuck can effectively control the temperature in the semiconductor processing process, the temperature uniformity of the surface of a wafer is ensured, the processing consistency is good, and the processing precision and the product quality are improved.

The present invention discloses a low-brittle glass substrate and a preparation process thereof, belonging to the field of glass substrate preparation. The raw material components of the glass substrate include base silicon dioxide, surface amino-treated silicon dioxide, aluminum oxide, boron oxide, modified titanium dioxide, sodium oxide, magnesium oxide, and cerium oxide. The glass substrate of the present invention has low brittleness, and the ratio of Vickers hardness to fracture toughness is used as a brittleness index, the Vickers hardness is 6.65-6.70GPa, and the fracture toughness is 3.54-3.77MPa / m 1 / 2 , the brittleness index is 1.78-1.87.

The invention discloses a high-viscosity anti-skid rubber asphalt waterproof coating and a preparation method thereof, wherein the high-viscosity anti-skid rubber asphalt waterproof coating comprises asphalt, styrene-butadiene latex, modified epoxy resin emulsion, tackifier, defoamer and filler; the modified epoxy resin emulsion comprises modified epoxy resin, emulsifier and water; the modified epoxy resin is prepared by reacting 2-hydroxy-1-naphthaldehyde, allyl bromide and phenolic epoxy acrylate. The high-viscosity anti-skid rubber asphalt waterproof coating provided by the invention has excellent bonding ability and mechanical strength, can improve the bonding effect and stability of waterproof coating and material, and then achieve the anti-skid effect, and can improve the high temperature resistance of waterproof coating, extend its service life and expand its application range, so that it can be widely used in the field of waterproof coating.

The invention relates to the field of glass manufacturing, and particularly discloses fiber-toughened transparent microcrystalline glass and a preparation method thereof. The transparent glass ceramic has excellent scratch resistance, and the maximum scratch width of the transparent glass ceramic under the pressure of 1.0 Kg is below 13.07 microns; the maximum scratch width under the pressure of 1.8 Kg is less than 22.25 mu m; under the pressure of 2.3 Kg, the maximum scratch width is 35.58 microns or below; the maximum scratch width under the pressure of 2.8 Kg is less than 51.17 mu m; meanwhile, the transparent microcrystalline glass obtained in the invention also has high light transmittance (the light transmittance of the transparent microcrystalline glass at 550nm visible light is 92% or more), low expansion coefficient, high hardness, good impact resistance and very strong chemical corrosion resistance, and can be applied to various display protective glass.

The preparation method comprises the following steps: firstly, taking 20 to 30 weight percent of 85 alumina clinker, 15 to 25 weight percent of forsterite, 11 to 24 weight percent of fused magnesite, 4 to 6 weight percent of pyrophyllite, 6 to 8 weight percent of 95 silicon carbide, 5 to 7 weight percent of 90 silicon carbide, 22 to 27 weight percent of ferro-silicon nitride, 9 to 13 weight percent of coke powder, 6 to 8 weight percent of metal Si powder, 5 to 7 weight percent of aluminum oxide micro powder, 7 to 8 weight percent of bentonite and 14 to 20 weight percent of white mud as raw materials; and adding 2-4wt% of high-temperature asphalt, 1-2wt% of carbon black and 15-18wt% of stemming oil, and mixing in a mixer for 20-30 minutes to obtain the additive for the anhydrous stemming. The invention has the advantages of environmental protection, no pollution, effective improvement of strength and stability, and improvement of oxidation resistance and erosion resistance.

The invention discloses a low-expansion ceramic cookware blank with low water absorption and high thermal shock resistance and a preparation method of a cookware product. The blank is prepared from the following raw materials: 25 to 45 weight percent of fused quartz, 5 to 10 weight percent of potassium feldspar powder, 15 to 25 weight percent of washing mud, 10 to 20 weight percent of knar clay, 8 to 12 weight percent of chlorite, 3 to 7 weight percent of ball clay, 5 to 10 weight percent of microcrystalline glass leftover material and 5 to 10 weight percent of activated aluminum oxide. The ceramic blank is sintered at the temperature of 1240-1260 DEG C. The water absorption rate of the obtained cookware product is 4.5-5.8%, the expansion coefficient alpha (800-20 DEG C) is less than or equal to 1.6 * 10 <-6 > / DEG C, and the thermal shock resistance is that the cookware product does not crack after being cooled by water for five times at the temperature of 460-20 DEG C. Through formula design, the technical problem that in the prior art, a fused quartz formula system is large in water absorption is solved, the prepared ceramic pot product is low in water absorption, thermal shock resistance and other properties are remarkably improved, the use requirements of low-expansion ceramic products such as a heat-resistant pot can be well met, and the requirements for matched use of electric appliances, high-temperature resistance and the like can be met. And the technical progress and application development of the low-expansion ceramic industry can be promoted.

The application belongs to the technical field of copper-based diamond composite materials, and particularly relates to a diamond copper-based composite material and a preparation method thereof. The preparation method comprises the following steps: mixing modified diamond powder and copper powder by ball milling, and obtaining a diamond copper core material after hot-pressing sintering; activating the diamond copper core material, then magnetron sputtering a Ni / Pr alloy target material onto the upper and lower surfaces of the activated diamond copper core material to form a Ni / Pr composite intermediate layer; vacuum welding copper sheets on the upper and lower surfaces of the Ni / Pr composite intermediate layer to obtain the diamond copper-based composite material. The diamond copper-based composite material prepared by the application has high density, excellent thermal conductivity, low thermal expansion coefficient and is convenient to process.

The application discloses a lithium-free high-heat-resistant ceramic mud and a preparation method thereof, and relates to the technical field of ceramic materials. In the preparation of the lithium-free high-heat-resistant ceramic mud, alumina is reacted with 3-(2,3-epoxypropoxy) propyl trimethoxysilane to obtain pre-modified alumina; the pre-modified alumina is reacted with starch to obtain modified alumina; ethyl acetoacetate, isopropyl alcohol, zirconium oxychloride, aluminum sec-butoxide, polyvinylpyrrolidone and N-N dimethylformamide are mixed to form a spinning solution, the spinning solution is electrospun, and then immersed in yttrium oxide sol to obtain alumina-zirconia-yttria composite fibers; the modified alumina, talc, alumina-zirconia-yttria fibers, hydroxypropyl methyl cellulose, glycerol, oleic acid, polyethylene glycol and water are stirred and mixed, and vacuum pugging is carried out to obtain the lithium-free high-heat-resistant ceramic mud. The lithium-free high-heat-resistant ceramic mud prepared by the application has good thermal shock resistance and bending strength after sintering.

The present invention belongs to the technical field of polytetrafluoroethylene material preparation, and specifically relates to a method for preparing polytetrafluoroethylene ultrafine filaments. The preparation method comprises the following steps: (1) preparing a mixture of modified cordierite fiber and nano-baryte; (2) preparing modified polyparabenzamide fiber; (3) preparing a modified polytetrafluoroethylene film; (4) preparing polytetrafluoroethylene ultrafine filaments. The method for preparing polytetrafluoroethylene ultrafine filaments of the present invention selects a mixture of modified cordierite fiber and nano-baryte, and a modified polyparabenzamide fiber and a polytetrafluoroethylene dispersion resin for compounding, thereby ensuring the breaking strength of the prepared polytetrafluoroethylene ultrafine filaments and reducing their unevenness and elongation at break.

The invention discloses a method for brazing a graphite / copper dissimilar material by using diamond particle reinforced AgCuInTi composite brazing filler metal, and relates to a method for brazing the graphite / copper dissimilar material. The invention aims to solve the technical problem that a reliable joint cannot be obtained due to great residual stress generated in the joint by using a direct brazing mode because the difference between the thermal expansion coefficients of graphite and copper is great. The AgCuInTi brazing filler metal and the diamond particles are evenly mixed in a ball milling mode to prepare the composite brazing filler metal, and the composite brazing filler metal is used for brazing graphite / copper dissimilar materials under vacuum. According to the method, reliable connection of the graphite / copper dissimilar materials is successfully achieved, the room-temperature shear strength of the connector can reach 30 MPa, the problem that the residual stress in the dissimilar material connector is large is solved, and application of the graphite / copper dissimilar material component in the fields of nuclear power, radiation protection and the like can be achieved.

The invention discloses a wall corner waterproof roll easy to stick to a wall and a preparation method thereof.The waterproof roll is composed of a first polypropylene fiber non-woven fabric layer, a first adhesive layer, a middle layer, a second adhesive layer and a second polypropylene fiber non-woven fabric layer, the two polypropylene fiber non-woven fabric layers are each formed by weft knitting and interweaving of two strands of polypropylene fibers with different single fiber numbers, and the middle layer is made of polypropylene fibers with different single fiber numbers. The moisture absorption of the polypropylene fibers with large number of single fibers is better than that of the polypropylene fibers with small number of single fibers, so that the cement can more quickly permeate into the polypropylene non-woven fabric layer from the outside of the polypropylene non-woven fabric layer, the cement one-way material guiding function can be achieved, the waterproof roll can be better and more quickly attached to a wall surface tightly, and the waterproof effect is better. The waterproof coiled material can be prevented from being separated from and folded down from a wall surface coated with cement, time and labor are saved, and the paving efficiency of the waterproof coiled material is improved. In addition, the waterproof coiled material has good waterproof performance, chemical resistance, weather resistance and excellent mechanical strength, has a small expansion coefficient, and is light in weight and good in flame retardant property.

The present invention discloses a low-porosity graphite material and a preparation method and application thereof, comprising the following steps: S1, pretreatment of natural flake graphite; S2, preparation of modified flake graphite; S3, preparation of mixed material; S4, crushing and grinding; S5, pressing and roasting; S6, impregnation and carbonization; S7, graphitization. The graphite material is impregnated by adding the roasted material into a modifier, so that the roasted material is more easily impregnated by the modified asphalt in the subsequent impregnation process, thereby improving the compatibility of the roasted material and the modified asphalt, thereby reducing the pores generated by uneven impregnation, and making the obtained graphite material have a lower porosity.

The present invention relates to the technical field of epoxy resins for electronic circuits, and provides a modified epoxy resin, a preparation method thereof, and an application thereof in halogen-free high-speed copper-clad laminates. The modified epoxy resin provided by the present invention includes material A and material B; the preparation method of material A includes the following steps: mixing a linear phenolic epoxy resin, a reactive flame retardant DOPO, and a catalyst for reaction; mixing the obtained reaction solution with a tetrafunctional glycidyl ether and an organic solvent to obtain material A; the preparation method of material B includes the following steps: mixing a BPA-type benzoxazine resin, dicyandiamide, and an organic solvent to obtain material B. The present invention obtains a modified epoxy resin by combining a plurality of resin systems, and the obtained modified epoxy resin does not contain halides, and is suitable for preparing halogen-free high-speed copper-clad laminates. The copper-clad laminate prepared using the modified epoxy resin of the present invention has lower dielectric loss and lower expansion coefficient, and has good heat resistance and flame retardancy.

The application relates to an insulating coating liquid, an insulating coating and oriented silicon steel, components of the insulating coating liquid comprising: a dihydrogen phosphate, a silica sol, phosphoric acid, a zirconium oxide dispersion liquid and chromic anhydride; wherein the content of the zirconium oxide dispersion liquid is 1-5% in mass fraction. The zirconium oxide dispersion liquid can be dissolved into the phosphate coating liquid, and zirconium phosphate generated after heat treatment can reduce the coating expansion coefficient and thus improve the coating tension. The phosphoric acid and the zirconium oxide dispersion liquid can be dissolved in the water-based coating, and zirconium phosphate can be generated after heat treatment. The low expansion coefficient of the zirconium phosphate can improve the coating tension, so that the technical problem of low coating tension existing in the prior art phosphate insulating coating is solved.

The invention discloses a graphite material for graphite boat sheets and a preparation method thereof, comprising the following steps: S1, pretreatment of natural flake graphite; S2, preparation of modified flake graphite; S3, preparation of mixed material; S4, crushing and grinding; S5, pressing and roasting; S6, impregnation and carbonization; S7, graphitization. The graphite material is prepared by modifying natural flake graphite, and the natural flake graphite has good electrical conductivity and thermal conductivity, which can not only improve the comprehensive performance of the graphite material, but also avoid the problems of large porosity, low mechanical strength, poor oxidation resistance and thermal shock resistance of the graphite material due to the poor compatibility of natural flake graphite with petroleum coke and asphalt coke, so that the prepared graphite material not only has good thermal conductivity, but also has good mechanical properties and low expansion coefficient, and is particularly suitable for preparing graphite boat sheets, thereby improving the service life of the graphite boat sheets.

The invention discloses a thin-wall honeycomb ceramic with thermal shock resistance and mechanical property and a preparation method thereof. The thin-wall honeycomb ceramic comprises basic powder and a composite additive, the composite additive comprises vanadium pentoxide and neodymium oxide, wherein the addition amount of the vanadium pentoxide is 2-4wt% of that of the basic powder, and the addition amount of the neodymium oxide is 1-9wt% of that of the basic powder. The thermal expansion coefficient of the ceramic is reduced by adding vanadium pentoxide, and the sintering compactness of the ceramic is improved by combining neodymium oxide, so that the thin-wall high-strength honeycomb ceramic is obtained. The 2 wt%-4 wt% of vanadium pentoxide and 1 wt%-9 wt% of neodymium oxide interact with each other to achieve synergistic interaction, so that the low expansion coefficient is achieved. And the prepared sample is relatively small in deformation degree and relatively low in thermal expansion coefficient.

This invention discloses a low-expansion, fast-charging modified graphite anode material, its preparation method, and its application. The method includes the following steps: A solution of alkaline earth metal fluorides is spray-dried to uniformly deposit onto the surface of crushed, pulverized, and granulated coke raw material, yielding a coke material containing alkaline earth metal fluorides; the coke material is then subjected to low-temperature activation treatment at 800-1000°C under an inert atmosphere to obtain a product; the product is mixed uniformly with the alkaline earth metal fluoride solution and impregnated, followed by graphitization under an inert atmosphere to obtain the modified graphite anode material. This invention introduces alkaline earth metal fluorides for doping modification during the preparation process, thereby promoting impurity removal, improving graphitization efficiency, and ultimately preparing an anode material with a low coefficient of expansion.

The invention relates to an all-silicon-carbide low-temperature lens, a manufacturing method and application of the all-silicon-carbide low-temperature lens to a coaxial four-mirror optical infrared camera. The all-silicon carbide low-temperature lens comprises a primary lens, a secondary lens, a third lens and a fourth lens. The primary mirror and the fourth mirror are arranged in a back-to-back manner and structurally form an integrated structure of the primary mirror and the fourth mirror, namely, the primary mirror and the fourth mirror; the main fourth mirror and the third mirror are respectively connected to two ends of a lens bearing cylinder, and the secondary mirror is connected with one end, provided with the main fourth mirror, of the lens bearing cylinder through a secondary mirror supporting rod assembly; the main fourth mirror, the secondary mirror, the third mirror, the secondary mirror supporting rod assembly and the lens bearing cylinder are made of silicon carbide materials. The whole silicon carbide lens structure shrinks integrally in a low-temperature environment, athermalization design of a lens light machine is achieved, and low-temperature stability and adaptability of the lens are improved. The lens bearing cylinder improves the structural rigidity and stability of the lens, serves as a low-temperature cold shield, inhibits external stray light, and improves the signal-to-noise ratio of the lens.

The invention provides a high-thermal-conductivity low-expansion-coefficient polyurethane pouring sealant and a preparation method thereof. The high-thermal-conductivity low-expansion-coefficient polyurethane pouring sealant comprises a component A and a component B, the component A is prepared from 60 to 90 parts of epoxidized soybean oil modified polyether polyol with the molecular weight of 4000 to 6000 and the functionality of 2.5 to 4.5, 20 to 50 parts of modified castor oil, 20 to 50 parts of inorganic filler and 1 to 3 parts of pigment; the modified castor oil is at least one of succinic acid modified castor oil, hydrogenated castor oil and epoxidized castor oil; the molecular weight of the modified castor oil is 900 to 1800, and the hydroxyl value is 160 to 200 mgKOH / g; the inorganic filler comprises calcium carbonate and a nano inorganic substance; and the component B is polymerized MDI. The molecular structure of the polyether polyol modified by adopting the modified castor oil and the epoxidized soybean oil has few effective functional groups, the unwrapping change of molecules after being heated is small, and the condition of shrinkage or expansion caused by gradual polymerization is low; and the inorganic filler is combined, so that the pouring sealant has high thermal conductivity and low expansion coefficient.

The present application provides a stainless steel chromium-tantalum alloy material, a stainless steel soaking plate, and a preparation method and application thereof, wherein the stainless steel chromium-tantalum alloy material comprises a stainless steel substrate and a chromium-tantalum alloy layer; the chromium-tantalum alloy layer comprises: by mass, 40-80% chromium, 0.1-4% tantalum, 10-45% iron, 2-10% nickel, and 0-3% trace metal elements. The present application forms a chromium-tantalum alloy layer by alloying chromium and tantalum with stainless steel, wherein the chromium and tantalum elements are embedded in the surface of the stainless steel, and form an alloy with the iron in the stainless steel to become a part of the stainless steel, thereby avoiding problems such as coating shedding; in addition, the chromium content in the formed alloy layer is greater than or equal to 40%, so that a continuous and dense alloy layer can be formed to wrap the stainless steel substrate, thereby avoiding corrosion caused by reactions with water and air, thereby solving problems such as hydrogen evolution in the stainless steel soaking plate by reaction with water.

The invention belongs to the technical field of welding, and particularly relates to a welding method for a super invar alloy workpiece. The welding method of the super invar alloy workpiece comprises the steps that first butt joint faces of two adjacent bottom plates are in butt joint to form a first seam; the bottom plate is provided with a first side and a second side which are arranged oppositely in the thickness direction of the bottom plate, and the first seam is welded from the first side through laser welding to form a first welding seam; wherein the parameters of laser welding for welding the first joint are as follows: the laser power is 5.6 KW to 6.0 KW, the speed is 1.8 m / min to 2.0 m / min, the defocusing amount is + 3 mm to + 6 mm, and the fusion depth is 5 mm. According to the welding method for the super invar alloy workpiece, the welding quality can be guaranteed.

The invention relates to a composite diaphragm, a preparation method thereof and a battery, and belongs to the technical field of battery materials, the composite diaphragm comprises a base membrane and a coating distributed on the surface of the base membrane; the coating comprises sodium super-ionic conductor type phosphate, a single-arm carbon nano tube and a binding agent, the mass ratio of the sodium super-ion conductor type phosphate to the single-arm carbon nanotube is (20-80): 1. The composite diaphragm provided by the invention has excellent heat shrinkage resistance, electrolyte infiltration performance and liquid absorption capability, and relatively high ionic conductivity and puncture strength, and the battery comprising the composite diaphragm has relatively high capacity and excellent cycle performance.

The invention provides an invar alloy with an ultralow expansion coefficient and a precision machining method thereof.The invar alloy is composed of 35.9%-36.3% of Ni, 0.08%-0.12% of Ti, 0.02%-0.04% of Al, 0.003%-0.008% of B and the balance Fe, double VIP + VAR ultra-high-purity smelting, large-deformation multi-directional forging + solid solution structure refining, unique low-temperature stepped aging stabilization, liquid nitrogen ultra-precision cutting and low-heat input laser welding are combined, and the ultra-low expansion coefficient invar alloy is obtained. The invar alloy with ultralow expansion coefficient and high purity is prepared, and the problems of coarse grains and abrupt performance change of a welding area are effectively solved.

The invention discloses lithium-aluminum-silicon cover plate glass and a strengthening method thereof, and the strengthening method comprises the following steps: carrying out primary ion exchange on the lithium-aluminum-silicon cover plate glass by adopting molten salt containing lithium nitrate, sodium nitrate and potassium nitrate, then carrying out heat preservation at 800-900 DEG C for 60-120s, then carrying out gradient cooling for three times to realize strengthening, and then carrying out secondary ion exchange to obtain the lithium-aluminum-silicon cover plate glass. And preparing to obtain the reinforced lithium aluminum silicon cover plate glass. Wherein three rounds of gradient cooling comprise a first round of cooling treatment: cooling to 650-750 DEG C at a rate of 18-25 DEG C / min; the temperature is reduced to 550-650 DEG C at the speed of 5-9 DEG C / min in the second round of cooling treatment; and a third round of cooling treatment: cooling to 30 DEG C at the rate of 15-25 DEG C / min. According to the invention, the compressive stress depth of the lithium-aluminum-silicon cover plate glass is improved, so that the impact strength is improved, and effective balance between optimal distribution of compressive stress and safety is realized.

The present application relates to a kind of environmentally friendly wood-plastic composite board forming device, including wood-plastic composite board, transmission mechanism, first support mechanism and second support mechanism being symmetrically arranged along the center cross section of transmission mechanism and being arranged at one end of transmission mechanism, and transfer mechanism being installed above transmission mechanism, first support mechanism and second support machine;Reinforcing rib installation station, lower metal buckle installation station and base plate waterproof gluing station are sequentially arranged along the circumferential direction of the first support mechanism;Cover plate adhesive application station, upper metal buckle installation station and cover plate waterproof gluing station are sequentially arranged along the circumferential direction of the second support mechanism;Thus, the present application solves the technical problem that the strength of the product of the existing wood-plastic composite board is low due to the limitation of material, and when temperature is higher, it is affected by temperature to cause expansion or bending.

The invention discloses a low-brittleness glass substrate and a preparation process thereof, and belongs to the field of glass substrate preparation. The glass substrate is prepared from the following raw material components: matrix silicon dioxide, surface amino-treated silicon dioxide, aluminum oxide, boric oxide, modified titanium dioxide, sodium oxide, magnesium oxide and cerium oxide. The glass substrate has low brittleness, the ratio of the Vickers hardness to the fracture toughness is taken as the brittleness index, the Vickers hardness is 6.65-6.70 GPa, the fracture toughness is 3.54-3.77 MPa / m < 1 / 2 >, and the brittleness index is 1.78-1.87.