381results about How to "Improve flexural performance" patented technology

The invention provides a laminated body (1) having a good workability during the production and an excellent peeling resistance, which is formed by joining a resin film layer (D) (2) comprising at least a layer composed of a resin composition (C) in which a soft resin (B) having a Young's modulus at 23° C. lower than that of a thermoplastic resin (A) is dispersed in a matrix made from the thermoplastic resin (A) and a rubbery elastomer layer (E) (3) through an adhesive layer (F) (4), wherein an adhesive composition (I) formed by compounding not less than 0.1 part by mass of at least one of a maleimide derivative (H) having not less than two reaction sites in a molecule thereof and poly-p-dinitrosobenzene based on 100 parts by mass of a rubber component (G) is applied to the adhesive layer (F) (4).

The invention discloses a preparation method of cationic surfactant modified fly ash, which comprises the following steps of: firstly performing pretreatment and hydroxylation treatment on the surface of fly ash to obtain hydroxylated fly ash to obtain a grafting point; then modifying the fly ash by use of a coupling agent; and finally performing grafting reaction with a cationic surfactant polyacrylamide to obtain cationic surfactant modified fly ash. According to the preparation method disclosed by the invention, the polyacrylamide is grafted on the surface of the fly ash, and the adsorption property of the grafted fly ash is greatly changed; particularly the fly ash is applied to a cement-based composite material, and the fracture resistance of the cement-based composite material is obviously improved; and the preparation method disclosed by the invention has the advantages of low reaction temperature, mild conditions, simple after-treatment and low industrialization cost.

The invention provides a reflective material, a reflective membrane and a preparation method thereof. The reflective material comprises 30 to 50 weight percent of barium sulfate powder, 5 to 8 weight percent of titanium white powder, 5 to 10 weight percent of pearl powder, 10 to 20 weight percent of film forming aid and the balance of organic solvent. The reflective material provided by the invention has the advantages of high reflectivity, oxidation and corrosion resistance, low cost and the like.

The invention relates to road silicate cement clinker and a preparation method thereof. The preparation method for the road silicate cement clinker comprises the following steps: grinding and roasting a cement raw material, wherein the cement raw material consists of the following substances in parts by weight: 50-85 parts of lime stones, 5-20 parts of steel slag powder, 5-15 parts of sandstones and 5-15 parts of coal ash. The preparation method can be used for recycling the steel slag, grinding the steel slag into powder after drying, and adopting the prepared steel slag powder as a cement production raw material to prepare road silicate cement clinker with low heat and high fracture resistance, so that the sintering quality of the clinker can be effectively improved after the steel slag powder is added. On the basis of meeting the technical requirements specified in the road silicate cement national standards, the road silicate cement clinker can be used for improving the fracture resistance and wear resistance of the cement, and lowering the hydration heat evolution and the dry shrinkage rate.

The invention provides a non-woven filter felt combining air-laid web with pinprick reinforcement, wherein, the non-woven filter felt has a layered structure, the intermediate layer is high-tenacity and low-elongation type base cloth, and the upper surface and the lower surface of the high-tenacity and low-elongation type base cloth are symmetrically glued with a fiber surface layer or an extra fine fiber surface layer. The production method essentially comprises the technology of producing the surface layer air-laid web: producing the base cloth; producing the needled-punched felt; impregnating; calendering; coating; preliminary drying; solidifying in a way of curing; trimming; winding; and finishing a product. The invention has the advantage that the technology combining the air-laid web with the pinprick reinforcement is used for producing the non-woven filter felt, thereby combining the respective advantage of the two technologies, improving the service life of filter materials, and having high filtration efficiency, high physical and mechanical properties, as well as low cost. Compared with the normal method for filtrating materials with needle punching, the invention can obviously improve the wearing resistance, the fold-resistance capability and the tensile strength, and can bear hyperfiltration load, wherein, the filtering rate can reach more than 1.0 m/min, and the running resistance is low.

The invention discloses a micro-invision intervened thrombus taking system, which comprises a conveyor guide wire, a thrombus catching device, a microcatheter and a guide catheter; the thrombus catching device is a net-shaped bracket formed by knitting one or more wires, a remote end of the bracket is closed or necked, a near end thereof is opened and in the shape of cone. The net-shaped bracket can sleeve relatively big main thrombus and also catch stripped small thrombus, so as to prevent small thrombus flowing to the blood vessel at remoter end and largely reduce the possibility of secondary stroke. The head end of the guide catheter is soft and can be expanded by the thrombus to obtain larger thrombus. The fracture resistance and the flexibility of the remote end of the guide catheter are largely improved, therefore, the guide catheter can be conveyed to the blood vessel at remoter end. The net-shaped bracket is also used as a bracket and reserved in a narrow-section blood vessel to expand the blood vessel and dredge the blood flow, therefore, the additional function of the disease is eased. By using the system, the operation time can be saved to win the treatment time for patients with acute cerebral apoplexy stoke, thus the success rate of the revascularization of the patients is improved.

A heating yarn includes an insulating yarn and a conductive yarn that is wound around the insulating yarn. The conductive yarn has an insulating core yarn and a plated layer (such as a copper plated layer) formed on a peripheral surface of the core yarn, and the core yarn is a high elasticity yarn (such as an aramid fiber) with an initial tensile resistance of 4.9 GPa or higher. Moreover, the heating yarn is woven in or knitted into the woven or knitted fabric as part of the constituent yarn.

The invention relates to a high strength plate of a turnover box, which is a plate or a multilayer plate manufactured by mixing fragment wood fiber and glue under high temperature and high pressure; a stiffener is positioned inside the wood fiber-glue mixed plate or between plate layers. The stiffener which is positioned inside the wood fiber- glue mixed plate or between the plate layers is a metal net inside the wood fiber-glue mixed plate or between the plate layers and the metal net can preferably be a plastic net or a glass fiber net; as the plastic net and the glass fiber net are compatible with wood glue so that the high strength plate with high density is generated; besides, the plastic net and the glass fiber net is not easy to be layer and separated from a body. In this way, the invention gets rid of the habit that the stiffener is not put inside the wood fiber plate by people; the invention greatly enhances the strength, especially anti-bending and anti-deformation capability.

The invention relates to a pouring material for a cement kiln tertiary air duct. The pouring material comprises aggregate and a matrix material according to a weight ratio of 2-8: 1-3. The aggregate has particle sizes of 1-10mm and the matrix material has the particle sizes of 0.1-0.5mm. The aggregate comprises, by weight, 28-50 parts of fused magnesia, 25-45 parts of modified white alundum, 5-15 parts of zirconium mullite and 8-20 parts of magnesium aluminate spinel. The matrix material comprises magnesia powder, silicon oxide fine powder, mullite powder, alumina fine powder and andalusite. The pouring material utilizes appropriate aggregate and the matrix material and has wear resistance and corrosion resistance, a uniform degree of expansion and good thermal shock stability. Through use of a fiber additive, pouring material integrality is improved, and pouring material flexural performances and anti-erosion performances are improved. The cement kiln tertiary air duct has the advantages of long service life, long replacement period, small production cost and high production efficiency under bad conditions.

The present invention is to provide a polyamide laminated film comprising a resin layer A and a resin layer B formed on at least one surface of the resin layer A,the resin layer A being composed mainly of a m-xylylene group-containing polyamide polymer (a-1) which is one prepared from monomer components containing a xylylenediamine compound as a main diamine component and an alpha,omega-aliphatic dicarboxylic acid having from 6 to 12 carbon atoms as a main dicarboxylic acid component, the xylylenediamine compound being m-xylylenediamine alone or a mixture of m-xylylenediamine and p-xylylenediamine, andthe resin layer B being mainly composed of a mixed polymer (b-3) which is a mixture of from 99 to 80% by weight of an aliphatic polyamide (b-1) and from 1 to 20% by weight of an elastomer (b-2).The laminated film is good in a gas barrier property and also in a flexural fatigue resistance and a transparency.

The invention discloses a catheter of composite structure. The catheter comprises a high-molecular pipe on the outer layer, a tubular woven net or spring net on the middle layer and a smooth inner layer. The high-molecular pipe on the outer layer is made of nylon, nested polyetheramide elastomer, polyurethane or silicone rubber; the wall thickness of the far end of the woven net or spring net on the middle layer is smaller than or equal to the wall thickness of a woven net body or spring net body; the inner layer is made of polytetrafluoroethylene or high-density polyethylene or nested polyetheramide elastomer containing a friction coefficient reducing additive. Compared with a conventional plastic catheter, the composite catheter has the advantages that the same mechanical performance requirement is met, and the wall thickness can be greatly reduced; the passing performance, folding resistance and controllability of the composite catheter are greatly improved, the composite catheter can be pushed to deeper and smaller blood vessels under the same conditions, and the operative successful rate is increased.

The invention discloses a water permeable stone paving block, which comprises a flat water permeable grid plate frame, a water permeable cushion layer that is filled in the water permeable grid plate frame and made of stones bonded with adhesive, a colored stone water permeable surface layer that is bonded on the stone water permeable cushion layer and bonded with contacts, or a colored stone water permeable surface layer that is bonded on the stone water permeable cushion layer and bonded with water permeable and non-water permeable paving blocks. Compared with the traditional water permeable stone paving block, the water permeable stone paving block disclosed by the invention has greatly increased level, greatly prolonged service life and excellent water permeability, and can be produced in a factory; and the construction with the water permeable stone paving block is not affected by climatic conditions.

The disclosure describes a flexible display apparatus and an encapsulation method thereof, which are capable of solving the problem of easily producing cracks with the existing encapsulating film layer and improving the performance of flex resistance of the flexible display apparatus. The flexible display apparatus according to the disclosure comprises: an LED device, and a protective layer arranged on a cathode of the OLED device, wherein the protective layer comprises a water oxygen barrier region and a multi-functional region, the multi-functional region has dual functions of a water oxygen barrier and stress blocking, and the thickness of the film layer in the multi-functional region is less than that of the film layer in the water oxygen barrier region, and/or the film texture in the multi-functional region is looser than that in the water oxygen barrier region.

The invention belongs to the field of building part production and particularly discloses a production line for a concrete prefabricated piece. The production line comprises a mould pretreatment station, a material distribution station, a mould combination station and a demoulding station. The mould combination station is used for stacking and combining moulds after material distribution is completed, connecting portions are arranged at the bottoms and on the upper portions of the moulds, and the vertically-arranged moulds are fixed through the connecting portions. An independent curing space is formed between the vertically-arranged moulds, and the prefabricated piece is cured in the curing space. According to the production line for the concrete prefabricated piece, a curing kiln or other curing rooms are not needed in the curing link, only the moulds are conveyed to stock dump after being stacked and combined, and demoulding can be conducted after curing is conducted for a certain time; the technological process is simplified, a stacking frame or other supports are not needed in the curing process, and production efficiency is improved while production cost is reduced; and meanwhile, due to the fact that the curing kiln and the like does not need to be used, cost is reduced, energy consumption is lowered, maintenance cost of facilities is reduced, and the occupied area of the whole technological production line is greatly reduced.

The invention discloses novel noodles. The noodles comprise more than two noodles connected side by side, all the noodles are connected into a row, and the width of the connection face of every two adjacent noodles is smaller than the thickness of each noodle, so that the mutually connected noodles can be manually separated from each other in the cooking process. By adopting the structure, the noodles have low probability of breakage, so that both the graded product rate and the production efficiency are improved, the production cost is lowered, and wastes caused when the noodle is packaged, transported and selected by customers are reduced; the noodles are easy to cook thoroughly and be tasty, and people can cook patches or noodles according to different food requirements; as more than two noodles are connected into a row side by side, the cross section can be elliptic, round or rhombic or in other novel shapes, so that the purchase desire and the appetite of people can be easily aroused; and more choices are provided by the masses to purchase noodles, the life of the masses is enriched and the life quality is improved; and the novel noodles provided by the invention have a broad market prospect and can be successful commercially.