70results about How to "Small dimensional change rate" patented technology

The invention discloses high-strength cement-based self-leveling mortar powder and slurry. The mortar powder specifically comprises the following components in parts by weight: 25-27 parts of silicate cement, 5-10 parts of aluminate cement and/or sulphate aluminium cement, 5-8 parts of gypsum and a very small amount of aids, wherein the very small amount means that the weight of every single additive accounts for 0.05-0.5wt% of the total weight of the mortar powder. According to the mortar disclosed by the invention, the mortar body added with water in proportion is good in peaceability, and during the construction time, good flowability can be continuously maintained, and the loss is less; the mortar is high in hardening speed, and after 6-8 hours, people can walk on the mortar; the mortar is high in strength and can be used as a heavy load floor cushion. The self-leveling mortar product is good in workability, hard to crack in construction at a low temperatures (5-10 DEG C) and convenient to store.

The invention discloses high belite sulphoaluminate cement based self-leveling mortar. The mortar comprises the following powder raw materials in parts by weight: 30-40 parts of high belite sulphoaluminate cement, 5-7 parts of anhydrite, 12-15 parts of heavy calcium powder, 40.5-45 parts of river sand, 2-2.5 parts of emulsion powder, 0.35-0.45 part of water reducing agent, 0.35-0.45 part of defoaming agent, 0.1-0.2 part of cellulose ether, 0.1-0.2 part of tartaric acid, and 0.05-0.1 part of lithium carbonate. According to the high belite sulphoaluminate cement based self-leveling mortar, the high belite sulphoaluminate cement is used as the only cement-based gel material, so that the performances are outstanding, and various additives can be specifically selected, and as a result, the adaptability of the gel material and the various additives can be obviously improved; the preparation technology processes of the self-leveling mortar can be greatly simplified, and moreover, the product performance stability can be greatly improved; meanwhile, the cost can be decreased.

Provided is a fiber-reinforced carbonated hydraulic inorganic molded plate having a high bulk specific gravity, a high flexural strength, and a small dimensional change rate per specific gravity. (1) A fiber-reinforced carbonated hydraulic inorganic molded plate including: a cement component, a pulp, and a reinforcing fiber having an aspect ratio in a range of 40 to 1000; and being a carbonation-cured molded plate. (2) A molded plate being a cured product of a composition including at least a cement component, a pulp, and a reinforcing fiber, wherein the molded plate is a fiber-reinforced carbonated hydraulic inorganic molded plate and has a carbonation reaction rate of higher than or equal to 30%.

The invention relates to the technical field of high-density polyethylene geomembranes, in particular to a high-temperature-resistant high-density polyethylene geomembrane and a preparation method thereof. The high-temperature-resistant high-density polyethylene geomembrane is prepared from the following raw materials in parts by mass: 40 to 70 parts of high-density polyethylene, 30 to 60 parts ofmedium-density polyethylene, 5 to 8 parts of antioxidant master batch and 5 to 8 parts of carbon black master batch. Various performance detection results of the high-temperature-resistant high-density polyethylene geomembrane prepared by the invention are all superior to GRI GM13 standard indexes; compared with the prior art, the high-density polyethylene geomembrane has excellent dimensional stability, the dimensional change rate is lower than +/-0.5% under the condition of 100 DEG C, the oxidation resistance is greatly improved, and the reliability and safety of engineering under the high-temperature condition are enhanced; the invention also provides the preparation method thereof.

The invention relates to a transparent conductive optical sheet having high invisibility of a pattern. The transparent conductive optical sheet comprises an ITO layer via etching of a pattern. Via a thin film drying effects of a reflectivity matching layer of the optical sheet, difference between the reflectivity and reflecting color between a non-etching part and an etching part of the ITO layer is corrected, and a user is allowed to fail to recognize the non-etching part and the etching part visually, so definition for display of a display panel on a lower part will not be reduced. In particular, when thickness of the ITO layer is changed for adjustment of surface resistance, even if the reflectivity and thickness of a transparent base layer or the reflectivity matching layer are changed, the thin film drying effects can be well maintained. Thus, the optical sheet can be suitable for touch display panel field of display panels of all kinds of electrical devices.

The invention discloses a glossy knitted fabric and a production method thereof. The knitted fabric is a single knitted fabric or a double knitted fabric formed by at least viscose-containing staple fiber yarns, and more than 30 weight percent of viscose is arranged on a glossy surface. After the knitted fabric is subjected to high temperature steaming and felt calendaring, the gloss of the glossy surface of the obtained product is 60 to 75 percent through a test according to an FZ/T01097-2006 standard. The knitted fabric is soft in handfeel, low in dimensional change rate, high in form stability and high in gloss and is particularly suitable for manufacturing underwear products.

The invention relates to a weaving process of wool blended fabrics. The weaving process comprises the steps of (1) winding wool fibers around pearl fibers as yarn cores in one direction, and then carrying out ultrasonic treatment, (2) winding cotton fibers around the treated wool fibers in an opposite direction to obtain composite yarns and weaving the composite yarns to obtain a surface fabric, (3) coating the surface fabric with a crease-resisting hot melt adhesive which comprises the following components in parts by weight: 30-40 parts of polytetramethylene ether glycol, 20-25 parts of butyl acrylate, 15-18 parts of citrate, 12-15 parts of diethylene glycol diglycidyl ether, 50-60 parts of polyamide, 5-10 parts of sodium alginate and 5-8 parts of dioctyl phthalate, and (4) carrying out melt-bonding on the surface fabric and a lining fabric by using a press machine, and then carrying out a finishing process to form the wool blended fabrics. By adopting the weaving process of the wool blended fabrics, the drapability and the structure tightness of the fabrics are improved.

Provided are a composite polymer electrolytic membrane that has excellent proton conductivity even under low-humidification and low-temperature conditions, a small dimensional change rate, and excellent mechanical strength and chemical stability, and that is capable of achieving a high output and excellent physical durability when being used in a solid polymer fuel cell; and a membrane electrode composite and a solid polymer fuel cell using the composite polymer electrolytic membrane. This composite polymer electrolytic membrane has a composite layer formed by combining a polyazole-containingnanofiber unwoven fabric (A) and an ionic-group-containing polymer electrolyte (B), and is characterized in that the polyazole-containing nanofiber unwoven fabric (A) is basic.

The invention relates to mortar, specifically to colored surface cement-based self-leveling mortar which can be used on concrete or a mortar base-material, has good workability, wear resistance and high strength, is not easy to crack at low temperature (5-10 DEG C) during construction, has uniformly-dispersed color and has strong decorative performance, and a material composition thereof.

This invention relates to a ceramics and its manufacturing method, and this is to offer a ceramics showing very little dimensional change after sintering and high dimensional accuracies, so that the characteristics of inorganic functional material can be fully maintained and utilized. The ceramics comprises: (a) alumia particles, and (b) MgAl2O4 particles diffused in alumia particles formed by oxidation reaction of baking mixture of Al, MgO and at least one slected from GeO2, Ge2O3, Y2O3 and Ag2O; wherein, the MgAl2O4 particles swelled when baking, and MgAl2O4 particles filled in gaps of alumia particles.

There is provided a method for manufacturing a liquid crystal panel comprises the steps of:

(Step A1) manufacturing a polarizing film including a laminate composed of a first base film and a polarizing thin layer, the step including: applying a vinyl alcohol-based polymer on a surface of the first base film to form a vinyl alcohol-based polymer thin layer; and wet dyeing the vinyl alcohol-based polymer thin layer after stretching the thin layer together with the first base film to obtain a polarizing thin layer, and

(Step B1) adhering the polarizing film without an adhesion layer during storage and transportation at least to one surface of a liquid crystal cell through an adhesion layer in a liquid crystal panel manufacturing process.

The invention relates to a perfluorosulfonic acid ion exchange membrane with high proton conduction and a preparation method thereof, and belongs to the technical field of ion exchange membranes. Theperfluorosulfonic acid ion exchange membrane with high proton conduction is prepared from sulfonated graphene doped perfluorosulfonic acid resin master batch and perfluorosulfonic acid resin through melt extrusion. The perfluorosulfonic acid ion exchange membrane with high proton conduction disclosed by the invention has high proton conductivity and dimensional stability; meanwhile, the inventionfurther provides a preparation method which is scientific and reasonable in design, simple and easy to implement.

The invention provides a polymer electrolyte membrane and a preparation method thereof. The polymer electrolyte membrane has ultralow dimensional change rate and high ion exchange capacity. Accordingto the invention, a method of stretching a water-containing membrane at low temperature is firstly adopted for preparing the polymer electrolyte membrane, and the polymer electrolyte membrane with lowdimensional change rate and maintaining high ion exchange capacity, proton conductivity and mechanical properties can be obtained by adopting a simple and low-energy-consumption method, so that durability of the polymer electrolyte membrane is greatly improved, service life of the polymer electrolyte membrane is greatly prolonged, and application prospect is clearer.