502 results about "Wollastonite" patented technology

The invention relates to the technical field of friction materials, and particularly discloses an electromagnetic brake friction material prepared from granules and a preparation process of the electromagnetic brake friction material in order to solve the problem that an existing electromagnetic brake friction plate is difficult to prepare or insufficient in performance. The reinforcing material comprises plasma modified aramid pulp, coupling modified composite mineral fibers, SiO2 coated tetrapod-like zinc oxide whiskers and carbon fiber-aluminum silicon whiskers; the filler comprises modified needle-like wollastonite and organic modified precipitated barium sulfate; the adhesive comprises boron-silicon synergistic modified phenolic resin and modified carboxy nitrile rubber. The raw materials are improved, and granules are prepared by adopting a mixing and crushing process, so that the content of an adhesive can be greatly reduced, meanwhile, the die filling efficiency can be improved, the die thickness and the high-temperature heat fading of the friction material can be reduced, a cold press molding process can be omitted, and the qualification rate of finished friction materials can be improved.

The invention provides a mineralization composition as well as a preparation method and application thereof. The mineralization composition comprises modified celestite, modified strontium-containing dolomite, modified medical stone, modified zeolite, modified tourmaline, modified wollastonite and modified serpentine. The strontium ion dissolution amount of the modified celestite is 50 to 55 mg / L; the strontium ion dissolution amount of the modified strontium-containing dolomite is 15 to 20 mg / L; the metasilicate ion dissolution amount of the modified medical stone is 30 to 35 mg / L; the metasilicate ion dissolution amount of the modified zeolite is 40 to 45 mg / L; the metasilicate ion dissolution amount of the modified tourmaline is 3 to 5 mg / L; the dissolution amount of metasilicate ions in the modified wollastonite is 3 to 5 mg / L; the dissolution amount of metasilicate ions in the modified serpentine is 10 to 15 mg / L. The mineralization composition can stably and enduringly release strontium ions and metasilicate ions, and also can adjust the water quality to alkalescence, so that the water quality reaches the national drinking water standard, and safe and healthy drinking water can be provided for users.

The invention relates to an anorthite material and a preparation method thereof. The adopted technical proposal comprises the following steps of: according to (ZL200510019664.3) patent technology, namely a method for preparing titanium and a titanium alloy by utilizing titanium-containing furnace slag, taking molten tailings which is extracted with the titanium alloy as a raw material, adding 20 to 50 weight percent of silica, 0 to 60 weight percent of clay and 0 to 40 percent aedelforsite, and cooling a melt to obtain the anorthite material after the mixture is completely molten and a bath composition is uniform; or taking cold tailings extracted with the titanium alloy as the raw material, adding 20 to 50 weight percent of the silica, 0 to 60 weight percent of the clay and 0 to 40 percent the aedelforsite, carrying out mix grinding on the raw material and the admixture until the particle size is less than 0.1 mm, performing blank compression, and calcining the mixture at a temperature of between 1,200 and 1,400 DEG C to obtain the anorthite material. The method takes the tailings extracted with the titanium as the raw material, saves precious bauxite resources, has low cost, ensures that industrial residue is utilized with high added value, is environment-friendly and has simple process.

The invention relates to a self-repairing concrete complexing agent and a preparation method thereof, and belongs to the technical field of concrete.The self-repairing concrete complexing agent is prepared from 1-4 parts of microorganism induction repairing agent, 2-6 parts of nanometer wollastonite, 10-15 parts of slow-release repairing liquid and 0.02-0.12 part of magnesium oxide. Triple repair mechanisms of microbial mineralization, chemical gel and nano-filling are fused, crack initiation and expansion to a stable whole stage are covered, the repair system is far better than a single repair system, the slow release liquid realizes on-demand release of the repair agent, one-time consumption failure is avoided, durability is improved by 50% or above, nano wollastonite and magnesium oxide micro-expansion synergistically enhance compactness, and the repair effect is good. Meanwhile, the method is compatible with an existing concrete production line, complex equipment is not needed, energy consumption is reduced, the use amount of components is small, microbial metabolism and natural minerals are further utilized, pollution of chemical expanding agents is reduced, only water triggering is needed in the repairing process, no toxic by-product is generated, and the method meets the green building material standard.

The invention discloses a ceramic rock plate with a decorative effect and a production process thereof, and belongs to the technical field of ceramics. The rock plate is composed of a green body layer, a ground glaze layer, a cover glaze layer and an ink jet pattern layer, and after firing, a micro-nano rough and low-surface-energy synergistic protection layer is formed through oxygen-nitrogen plasma activation, a hydrothermal reaction of aluminum salt and an ammonia source compound, high-temperature calcination and silane derivative dipping and curing. The green body takes wollastonite, quartz sand and the like as raw materials, and the ground glaze and the cover glaze adopt a feldspar-quartz-nepheline system; after firing, performing plasma treatment and hydrothermal treatment to generate needle-shaped aluminum oxide, and introducing a silane derivative to realize double functions of super-hydrophobicity and wear resistance. Compared with the prior art, the anti-fouling and wear-resistant coating reaches the national standard 5 level, the process is simple, and the coating can be directly connected to an existing production line and is suitable for high-end wall floor decoration.

The invention belongs to the technical field of ceramics, and particularly relates to a three-dimensional effect glaze, a three-dimensional effect ceramic tile and a preparation method thereof. The three-dimensional effect glaze is composed of honeycomb ground glaze and honeycomb effect glaze; the honeycomb ground glaze comprises the following mineral components in percentage by mass: 20%-30% of quartz, 5%-10% of kaolin, 12%-18% of albite, 7%-15% of calcite, 2%-7% of wollastonite, 12%-17% of calcined talc, 15%-25% of calcined zinc oxide, 2%-6% of titanium dioxide, 2%-4% of glass powder, 1%-3% of strontium carbonate and 1%-5% of dolomite. The glaze with the honeycomb effect comprises the following mineral components in percentage by mass: 5%-15% of quartz, 5%-10% of kaolin, 40%-55% of albite, 2%-6% of barium ice feldspar, 2%-10% of calcite, 7%-15% of calcined talc, 1%-4% of calcined zinc oxide, 7%-15% of red mud and 3%-5% of coal gangue. The novel effect glaze is developed, the glaze surface is flat and smooth, meanwhile, the ground glaze is pushed to the surface through the gas phase disturbance effect, and the effect glaze sinks and wraps the ground glaze in a three-dimensional honeycomb shape.

The invention discloses a preparation method of a Yellow River deposited sand aggregate cement-based water permeable brick, which comprises the following steps: (1) uniformly mixing Yellow River deposited sand, municipal sludge, chopped basalt fiber and diluted molasses liquid, granulating, drying, and sintering to obtain a water permeable coarse aggregate; and (2) adding pseudo-wollastonite powder and red brick micro powder into water glass, uniformly stirring to form slurry, then adding the water-permeable coarse aggregate into the slurry for surface coating, then separating out the coarse aggregate, performing carbonization treatment under a heating condition, and drying the obtained aggregate after the carbonization treatment is completed, thereby obtaining the modified water-permeable coarse aggregate. And (3) uniformly mixing the cement component, the waste red brick coarse aggregate, the modified permeable coarse aggregate, the glass powder, the fiber, the water reducing agent and water, casting and molding the obtained slurry, and curing. The method effectively overcomes the adverse effect on the performance of the water permeable brick caused by high silt content of the yellow river sedimentary sand, and facilitates the resource utilization of the yellow river sedimentary sand.

The invention relates to the technical field of cables, and provides a flame-retardant medium-voltage power cable and a preparation method thereof. The flame-retardant medium-voltage power cable comprises a conductor and a flame-retardant layer, the flame-retardant layer is prepared from the following raw materials in parts by weight: 65 to 75 parts of ethylene-vinyl acetate copolymer, 25 to 35 parts of polyolefin elastomer, 10 to 12 parts of maleic anhydride grafted polyethylene, 10 to 14 parts of phosphorus-nitrogen modified wollastonite, 8 to 10 parts of polydopamine / silane double-layer modified magnesium hydroxide, 3 to 5 parts of nano zinc borate, 0.6 to 1 part of antioxidant and 0.5 to 0.7 part of calcium stearate. According to the flame-retardant medium-voltage power cable prepared in the invention, the flame-retardant performance is improved, and the flame-retardant stability of the cable is also improved.

The invention relates to a preparation method of high-temperature-resistant and high-performance molded concrete for a high-ground-temperature tunnel. The invention provides a preparation method of concrete adapted to a high-ground-temperature environment, aiming at the problems of difficulty in guaranteeing the workability of a mixture, easiness in cracking after setting and hardening, insufficient middle and later strength development and carbonization resistance and the like of the existing high-ground-temperature tunnel secondary lining molded concrete. The concrete is prepared from mineral admixtures such as wollastonite powder, Portland cement, fly ash and the like, organic synthetic fiber materials such as coarse aggregate, fine aggregate, polypropylene and the like, and admixtures such as a polycarboxylic acid water reducer and the like according to a specific mass ratio. The prepared concrete has excellent performances of self-compaction, early strength, high permeability resistance, crack resistance, carbonization resistance and the like in a high-ground-temperature environment, can adapt to a high-ground-temperature tunnel construction environment with the surrounding rock temperature of 28-95 DEG C, effectively solves the construction problem of high-ground-temperature tunnel secondary lining molded concrete, and has remarkable economic and social benefits.

The invention relates to the technical field of building ceramics, in particular to a self-cleaning glaze, a self-cleaning archaized brick and a preparation method thereof.The self-cleaning glaze is prepared from hydrophilic frit, kaolin, quartz, calcite, albite and nano cattle bone ash, and the nano cattle bone ash comprises chemical components of Ca10 (PO4) 6 (OH) 2 and CaO; the hydrophilic frit is prepared from the following raw materials: calcite, wollastonite, kaolin, aluminum oxide and quartz. According to the self-cleaning glaze provided by the invention, on the premise of reducing the production cost, excellent and lasting self-cleaning performance is realized, and the technical problems of poor timeliness of self-cleaning performance and high production cost in the prior art are solved.

The invention discloses a hydrolysis-resistant antiskid polyurethane material as well as a preparation method and application thereof, and relates to the technical field of polyurethane materials. The hydrolysis-resistant antiskid polyurethane material comprises a component A and a component B, wherein the component A comprises polyester type acrylate polyol, aromatic isocyanate and an organic tin catalyst; the component B comprises epoxy modified polyether polyol, triethylene tetramine, a nitrogen-containing catalyst, water, a foam stabilizer, TPE particles and modified wollastonite; the component C is hydroxyl-terminated polybutadiene; the modified wollastonite is prepared by modifying wollastonite with a polyacrylate oligomer. The hydrolysis-resistant anti-slip polyurethane material provided by the invention is prepared by adopting a semi-prepolymerization method, the preparation process is easy to control, the processability is stable, and the hydrolysis-resistant anti-slip polyurethane material has excellent mechanical strength, toughness, rebound resilience, hydrolysis resistance, high and low temperature resistance, wear resistance, slip resistance, aging resistance and the like, can be used for a long time under severe conditions such as moisture or low temperature, and has a wide application prospect. And the service life of the material applied to the sole material is prolonged.

The invention relates to the technical field of agricultural fertilizers, in particular to an organic-inorganic composite silicon-calcium-magnesium fertilizer and a preparation method and application of the organic-inorganic composite silicon-calcium-magnesium fertilizer. The high-temperature activated silicon-calcium-magnesium mineral powder is composed of calcined wollastonite powder, calcined serpentine powder, dolomite powder and zeolite powder; 2%-5% of an organosilane modifier, wherein the organosilane modifier is composed of gamma-aminopropyl triethoxy silane and gamma-glycidyl ether oxypropyl trimethoxy silane, and the organic silane modifier is composed of gamma-aminopropyl triethoxy silane and gamma-glycidyl ether oxypropyl trimethoxy silane; 18%-35% of a functional organic matter complex, wherein the functional organic matter complex is composed of mineral source sodium humate, bioactive small peptide, sodium alginate and polyglutamic acid; and 3%-8% of auxiliary functional components, so that the solubility and the bioavailability of silicon, calcium and magnesium elements in minerals are remarkably improved.

The present invention belongs to the technical field of glass manufacturing. Provided are a recipe of glass capable of carbon emission and a preparation method for the glass capable of carbon emission. The recipe comprises the following raw material components in percentage by mass: 53-60% of quartz sand, 12-18% of wollastonite, 5-12% of albite, 0.5-2% of spodumene, and 15-20% of NaOH; on this basis, 2-5% of water and 5-10% of a silica sol binder are additionally added to ensure the humidity and good adhesive effect of a compounded material. The raw materials are fully mixed and then fed to an extrusion molding machine, the pressure in the extrusion molding machine is controlled to be 50-150 MPa, and extrusion is performed to form spherical or flake-shaped pellets having a diameter of 5-15 mm; and the granulated and molded pellets of the compounded material are then preheated to 500°C and put into a kiln for melting to obtain glass capable of carbon emission. The preparation method can improve the utilization rate of the compounded material, shorten the melting time, reduce the melting temperature, improve the quality of glass melting, reduce the unit energy consumption, and reduce the carbon emission.

The invention discloses a preparation process of a Yellow River deposited sand high-strength cement-based curb material, which comprises the following steps: (1) adding mixed powder formed by pseudo-wollastonite powder and glass powder into wet chopped basalt fibers to obtain pretreated basalt fibers; and (2) carrying out heat treatment on the pretreated basalt fiber and coal gangue powder to obtain pretreated coal gangue powder and modified fiber for later use. And (3) wetting the modified fiber by using a tannic acid saturated solution, and carbonizing in a carbonization box containing carbon dioxide and water vapor to obtain the carbonized modified fiber. And (4) taking cement powder, gravel coarse aggregate, Yellow River deposited sand, fly ash, carbonized modified fiber, a water reducing agent and the like as raw materials. The preparation method comprises the following steps: uniformly mixing the raw materials, adding mixing water and uniformly mixing. According to the invention, the mechanical strength of the curb is effectively improved by adopting the fibers which have good bonding capacity with the curb matrix, and the application of the yellow river deposited sand is promoted.

The invention relates to chemical-corrosion-resistant full-polished glaze as well as a preparation method and application thereof, and belongs to the technical field of ceramic production and manufacturing. The chemical-corrosion-resistant fully-polished glaze comprises the following mineral components in percentage by mass: 5%-10% of quartz, 5%-10% of kaolin, 1%-10% of calcined talc, 20%-25% of wollastonite, 10%-20% of calcined kaolin, 1%-5% of calcined alumina, 1%-5% of calcined zinc oxide, 1%-5% of barium carbonate, 1%-3% of titanium oxide, 1%-5% of zirconium silicate and 10%-20% of boron frit. By specially designing a full-polishing glaze formula of the ceramic tile, adjusting the firing temperature and discharging or reducing defects such as air holes in a glaze layer as much as possible, the glaze layer forms a stable inert surface, and chemical substances cannot react with the glaze layer or only slightly react with the glaze layer, so that the transparency, integrity and glossiness of the surface are kept.

The present application relates to the technical field of ceramics, and particularly relates to a ceramic handicraft, which comprises a porcelain blank and a blank glaze applied to the surface of the porcelain blank, wherein the porcelain blank is composed of the following raw materials in parts by weight: fly ash 40-50 parts, potassium feldspar 10-20 parts, sodium feldspar 5-10 parts, black clay 8-10 parts, soda 20-25 parts, talc 1-3 parts, and waste porcelain powder 3-5 parts; and the blank glaze is composed of the following raw materials in parts by weight: quartz 40-60 parts, high-quality kaolin 10-15 parts, wollastonite 18-20 parts, waste porcelain powder 10-15 parts, potassium feldspar 6-10 parts, sodium feldspar 3-5 parts, calcined talc 3-5 parts, and zirconium-iron red agent 1-2 parts; the content of SiO2 and Al2O3 in the fly ash is more than 80 wt%, and the fly ash contains a small amount of Fe2O3, MgO and CaO; the present application solves the problem that the weight of the porcelain blank of the existing ceramic handicraft is heavy, and the industrial waste raw materials cannot be introduced in large quantities to manufacture the porcelain blank, and the resource utilization rate is poor; compared with the prior art, the glaze surface gloss of the present application is moderate, and the ceramic handicraft is beneficial to decoration and placement under a light source.

The invention discloses a preparation method of a three-dimensional split-phase fancy glaze for coal gangue ceramic body decoration, the three-dimensional split-phase fancy glaze comprises a ground glaze and a cover glaze, the cover glaze comprises the following raw materials by weight: 15-20% of quartz, 10-15% of calcite, 5-10% of kaolin, 5-10% of zinc oxide, 10-15% of calcium phosphate, 25-30% of potassium feldspar, 2-5% of calcium borate, 5-10% of tin dioxide, 3-5% of spodumene, and 2-5% of a coloring oxide; the ground glaze is prepared from the following raw materials in percentage by weight: 15-20% of quartz, 10-15% of wollastonite, 5-10% of kaolin, 10-15% of zinc oxide, 15-20% of calcium phosphate, 15-20% of spodumene, 5-10% of titanium dioxide, 5-10% of calcium borate, 2-5% of coal gangue and 2-5% of coloring oxide, and the product is obtained through raw material preparation, glazing and sintering. The prepared three-dimensional split-phase fancy glaze is simple in process, high in adaptability, unique in effect and wide in market prospect.

The invention discloses plastic pipeline particles prepared from waste incineration fly ash and a preparation method of the plastic pipeline particles. The particles are prepared from the following raw materials in parts by weight: 5-25 parts of PE, 20-100 parts of superfine calcium carbonate, 1-5 parts of needle-like wollastonite, 1-5 parts of chopped carbon fibers, 1-15 parts of rutile type titanium dioxide, 10-75 parts of waste incineration fly ash, 1-20 parts of paraffin, 0.2-5 parts of a coupling agent and 0.5-10 parts of a dispersing agent. The preparation method comprises the following steps: 1, cleaning and airing the fly ash, and crushing and grinding the fly ash into 600-1250-mesh powder P; 2, mixing the powder P with inorganic fillers such as superfine calcium carbonate at a high speed of 100-130 DEG C to obtain a composite filler M; 3, mixing and modifying the filler M with a dispersing agent and a coupling agent at a high speed to obtain modified powder MP; 4, MP, PE and paraffin are mixed and plasticized at a high speed, and single-screw extrusion granulation is performed. The particles achieve fly ash recycling and are excellent in processability, the prepared PE pipeline is high in strength, resistant to corrosion and long in service life and can be used as an industrial or municipal sewage pipeline, and the preparation method is convenient, fast and efficient.

The invention discloses modified flow state solidified soil based on a solid waste base and a preparation method of the modified flow state solidified soil. The stabilized soil comprises engineering residue soil, slag, cement, a water reducing agent, wollastonite microfibers subjected to surface modification by a silane coupling agent, an amide monomer, an initiator, an initiator promoter and an early strength agent. Through the synergistic modification effect of in-situ polymerization and wollastonite microfibers, the pressure resistance, crack resistance, toughness and the like of the solidified soil with high solid waste content and high fiber doping amount are remarkably improved. The preparation method is simple, low in cost, convenient to construct and suitable for industrial application.

The invention discloses a jade-color luxury-effect ceramic rock plate and a preparation method thereof. The ceramic rock plate sequentially comprises a green body, a transparent cover glaze layer, a jade texture pattern layer, a composite dry particle layer, a first protective glaze layer, a transparent dry particle layer and a second protective glaze layer from bottom to top, the composite dry particle layer is prepared from the following raw material components in parts by weight: 65-69 parts of baddeleyite, 5-7 parts of lepidolite, 10-15 parts of opal, 3-5 parts of kyanite and 1-5 parts of udravite; the anti-reflection dry granules are prepared from the following raw material components in parts by weight: 20 to 25 parts of albite, 25 to 30 parts of quartz, 14 to 16 parts of calcite, 8 to 12 parts of wollastonite and 13.5 to 15.5 parts of zinc oxide. The ceramic rock plate can truly restore the randomness, the layering sense and the multicolor interweaving effect of jade seeping, the mild texture and the natural gloss of the surface of a product are improved, and the luxury effect of jade seeping is achieved.

The invention provides a smelting method of steel for a non-quenched and tempered crankshaft, the steel for the non-quenched and tempered crankshaft comprises the following chemical components in percentage by weight: 0.25%-0.50% of C, 0.20%-0.80% of Si, 0.80%-1.80% of Mn, 0.020%-0.060% of S, 0.015%-0.060% of Al, 50-200ppm of N, less than or equal to 0.020% of P and the balance of Fe, inevitable impurities and one or more of V, Ti and Nb, and the total content of V, Ti and Nb is less than or equal to 0.20%. The smelting method comprises the steps of converter smelting, LF refining, RH vacuum degassing and continuous casting. Wherein 1-3 kg / t of silicon ball deoxidizer, 2-4 kg / t of lime and 4-8 kg / t of wollastonite are added during converter smelting and tapping; in the LF refining process, a siliceous deoxidizer with the total amount of 0.5-1.5 kg / t steel is added in batches for diffusion deoxidation during heating, and meanwhile, lime with the total amount of 2-6 kg / t steel and wollastonite with the total amount of 4-9 kg / t steel are added; and in the later stage of LF refining, sulfur-iron alloy is added, Al alloying is conducted in the RH vacuum degassing process, and calcium wires are fed after vacuum breaking. The casting continuity of the steel for the non-quenched and tempered crankshaft can be improved, and the content of inclusions can be controlled.

The invention provides a ceramic green body based on lithium slag and wollastonite, a ceramic tile and a preparation method, and the ceramic green body comprises the following raw materials by weight: 25-35% of clay, 15-25% of lithium slag, 10-20% of wollastonite tailings, 15-25% of potassium-sodium feldspar, 15-25% of quartz, 0-3% of calcium phosphate, and 0.5-0.8% of a dispergator. The lithium slag and the wollastonite tailings are doped into the formula of the ceramic body, a low-aluminum high-calcium billet system is established by combining the clay, the potassium-sodium feldspar, the quartz and the auxiliary raw materials, and the characteristics of the lithium slag and the wollastonite are utilized, and the formula of the ceramic body is adjusted and optimized, so that the low-aluminum high-calcium ceramic body is obtained. The low-aluminum high-calcium green body formula which is low in firing temperature, wide in firing range and easy to control kiln firing can be obtained, energy consumption is remarkably reduced, the utilization rate of the lithium slag and the wollastonite tailings is increased, the production cost of ceramic tiles is reduced, and meanwhile the strength of ceramic products is improved.

The invention belongs to the technical field of surface protective coatings of battery packs for automobiles, and particularly relates to a normal-temperature curing protective environment-friendly flame-retardant water-based coating for a battery pack for a new energy vehicle. The environment-friendly coating is prepared from the following components in parts by weight: 40 to 45 parts of self-prepared acrylic emulsion PK-1220, 30 to 34 parts of 400-mesh aluminum hydroxide, 9 to 11 parts of wollastonite, 4 to 6 parts of expanded graphite, 1 to 2 parts of wood fiber, 0.1 to 0.2 part of thickening agent, 0.3 to 0.5 part of dispersing agent, 0.2 to 0.3 part of sterilizing agent and 0.5 to 1 part of coalescing agent. The high-environment-friendly flame-retardant water-based coating disclosed by the invention has the functions of protection and stone impact resistance, improves the safety of a battery pack or an oil tank in a driving process, can reduce noise in a vehicle, and can protect the safety of passengers and external personnel and avoid property loss especially when a fire breaks out.

The application discloses a kind of high wear-resistant hot bending forming rock plate, including following weight parts raw materials: kaolin 30-35 parts, fine ball clay 20-25 parts, wollastonite 10-15 parts, super white sand 10-15 parts, feldspar 8-14 parts, pyroxene 7-12 parts, talc 6-10 parts, bentonite 5-8 parts, tremolite 4-7 parts, sodium tripolyphosphate 3-5 parts, modified additive 4-7 parts.The high wear-resistant hot bending forming rock plate of the application uses kaolin, fine ball and other raw materials with modified additive, through the modification of mullite and cordierite in modified additive by specific modified liquid stirring, the silicon carbide whisker liquid in modified liquid cooperates with hydroxyapatite agent into the system, through the coordination and synergistic effect between raw materials, so that the performance of the product is further improved, the toughness performance, fracture performance and wear resistance of the product are improved in coordination.

This invention discloses a highly efficient synergistic halogen-free flame-retardant nylon material and its preparation method. Specifically, it is prepared from 57-60 parts by weight of nylon resin, 30 parts by weight of short glass fibers, 10-13 parts by weight of halogen-free flame retardant, 1-3 parts by weight of wollastonite mineral fibers, 0.2-0.5 parts by weight of antioxidant, 0.2-0.5 parts by weight of lubricant, and 0.2-0.4 parts by weight of coupling agent. The material prepared by this invention, through the addition of wollastonite mineral fibers, forms a synergistic flame-retardant effect with the halogen-free flame retardant, which not only improves the flame-retardant performance of the material but also improves its flowability and dimensional stability, reduces the exposure of glass fibers, and enhances the mechanical properties of the material. Furthermore, wollastonite mineral fibers are inexpensive, which can reduce the cost of composite materials, making it very suitable for halogen-free flame-retardant nylon materials and enabling large-scale promotion and use.

The invention relates to the technical field of building ceramics, in particular to waxy antifouling matte glaze and a preparation method and application thereof.The waxy antifouling matte glaze is prepared from, by mass, 7-10 parts of kaolin, 6-15 parts of calcined kaolin, 4-8 parts of quartz, 20-30 parts of potassium feldspar, 5-15 parts of albite, 5-10 parts of wollastonite, 1-5 parts of zinc oxide, 5-10 parts of strontium carbonate, 5-12 parts of barium carbonate and 10-20 parts of crystalline frit; the crystalline frit is prepared from the following raw materials in parts by mass: 25 to 35 parts of kaolin, 3 to 8 parts of calcined aluminum oxide, 20 to 35 parts of calcite, 0.5 to 3 parts of dolomite, 5 to 10 parts of zinc oxide, 25 to 35 parts of potassium feldspar, 0.5 to 3 parts of barium carbonate and 1 to 5 parts of anorthite powder. The waxy antifouling matte glaze provided by the invention not only has antifouling performance, but also has high hardness and high wear resistance on the premise of having matte texture and waxy silky hand feeling, so as to overcome the defects in the prior art.

A preparation method of the steel slag-based binder comprises the following steps: crushing converter steel slag, grinding to 150 meshes or below to obtain converter steel slag fine powder, removing iron, continuously grinding to 300-350 meshes, and removing iron again until the metal iron content is less than or equal to 0.5 wt% to obtain active steel slag powder; fly ash and water are mixed and then settled, bottom sediment is taken and dried till the water content is smaller than or equal to 3 wt%, and pretreated fly ash is obtained; and mixing the active steel slag powder, the pretreated fly ash, pyrophyllite and wollastonite according to a certain ratio, and uniformly grinding to obtain the steel slag-based binder for preparing the micro-electrolysis iron-carbon spheres. The method not only solves the problem of recycling of steel slag resources, but also can prepare the iron-carbon micro-electrolysis filler with low production cost, so that the cost is remarkably reduced.

The invention discloses an anti-skid resin type artificial stone material which comprises the following raw materials in parts by weight: 10 parts of composite resin, 55-70 parts of modified stone aggregate, 10-25 parts of needle-like wollastonite, 0.4-0.8 part of a curing agent, 0.05-0.2 part of a catalyst and 0.05-0.2 part of a light stabilizer, the composite resin comprises unsaturated polyester resin and an anti-skid filler in a mass ratio of 9: 1-7: 3, and the anti-skid resin type artificial stone material is prepared from the following raw materials in parts by weight: 10 parts of modified stone aggregate, 10-25 parts of needle-like wollastonite, 0.4-0.8 part of a curing agent, 0.05-0.2 part of a catalyst and 0.05-0.2 part of a light stabilizer. The anti-skid filler is one of ethylene glycol acrylate, glyceryl acrylate and acrylic acid modified sorbitol, the modified stone aggregate is formed by modifying stone aggregate through a stone aggregate modifier, and the catalyst is one of cobalt naphthenate, cobalt iso-octoate and manganese iso-octoate. The invention further discloses a preparation method of the anti-skid resin type artificial stone material, optimization balance of the anti-skid performance and other key performance of the artificial stone material is achieved, the application value of the artificial stone material in building decoration can be improved, and the safety and attractiveness of building space can be remarkably improved.

The invention relates to the technical field of saline-alkali land improvement, and particularly discloses a saline-alkali land soil conditioner preparation process capable of preventing salt and alkali return, which comprises the following steps: (1) uniformly mixing vinegar residue powder, zeolite powder and molasses aqueous solution, granulating, adding wood flour into the obtained particles for coating, separating out the particles after coating, and drying to obtain dried particles; and obtaining the core for later use. (2) uniformly mixing the calcium silicate or pseudo-wollastonite powder, zeolite powder and desulfurized gypsum powder, adding water, and uniformly stirring to form slurry; and coating the surface of the inner core with the slurry, and drying to obtain the modifier. The modifier prepared by the process disclosed by the invention not only can reduce the alkali content in the saline alkali soil and improve the microbial environment of the soil, but also can prevent the absorbed salt from returning to the soil to cause alkali and salt return, so that the improvement effect is more lasting.

The invention relates to the technical field of pavement patching materials, in particular to a pavement patching material with high early strength and toughness and a preparation method thereof. The repairing material is formed by compounding phosphate-based powder A, magnesium oxide-based powder B, a composite retarder C and a fiber material D, the phosphate-based powder comprises phosphate and disodium hydrogen phosphate dodecahydrate; the magnesium oxide-based powder B comprises dead burned magnesium oxide, superfine powder, industrial solid waste powder, cellulose ether and wollastonite whiskers; the composite retarder C comprises borax and nitrite; the fiber material D comprises reinforced fibers. The preparation method is the preparation method of the pavement patching material. The pavement patching material slurry has high early strength, the construction time can be remarkably shortened, and it is guaranteed that a repaired pavement has excellent mechanical performance and durability; according to the preparation method, materials can be prepared respectively, and standardized production, transportation and storage are facilitated; only water needs to be added for preparation on a construction site, and construction is convenient.