18 results about "Polypropylene fiber" patented technology

The invention relates to an antibacterial functional polypropylene fiber as well as a preparation method and an application thereof. The antibacterial functional polypropylene fiber comprises the following components in percentage by mass: 1%-10% of antibacterial chip masterbatch and 90%-99% of polypropylene chips, wherein the antibacterial chip masterbatch comprises the following components in percentage by mass: 1%-5% of nano silver, 1%-5% of nano titanium nitride, 0.1%-1% of compatilizer and the balance of polypropylene chips. The preparation method comprises the following steps of: uniformly mixing the antibacterial chip masterbatch with the polypropylene chips, and spinning according to the chemical fiber spinning process to prepare the antibacterial functional polypropylene fiber. The antibacterial functional polypropylene fiber has the advantages of good antibacterial effect and wide application.

A battery separator is provided which is hardly broken by tension during the manufacture of batteries, is hardly punctured with a plate flash, and is hardly torn off with a plate edge, thereby hardly causing a short circuit. Accordingly, the separator can facilitate the stable manufacture of the batteries. The battery separator is equipped with a fiber sheet containing a polypropylene fiber having a tensile strength of not less than 10 g/d (denier) and a Young's modulus of not less than 800 kg/mm2, said separator having a resistance of not less than 585 gf to puncture by edge, or is equipped with a fiber sheet containing not less than 10 mass % of a polypropylene fiber having a tensile strength of not less than 10 g/d (denier) and a Young's modulus of not less than 800 kg/mm2.

The invention provides an automobile trim material combined with a non-woven fabric and a woven fabric The automobile trim material is prepared by virtue of the following steps: 1, cutting ramie into 70mm fibers, putting the fibers into a stainless steel vessel, adding a sodium bicarbonate solution and stirring for 60 minutes; 2, cleaning jute fibers and drying the jute fibers; 3, adding warm water at a temperature of 30 DEG C, performing constant-temperature bath for 60 minutes, adding 1% constant temperature bath and 0.1% ceric ammonium nitrate, cleaning, and then drying; 4, putting the jute fibers on fur machine equipment, and performing shredding mixing on the jute fibers and polypropylene fibers; 5, carding the fibers into a net shape by use of a carding machine; 6, paving the fibers to form a multilayer net body with weight per square meter of 1500g; 7, paving polypropylene fabrics on both sides as surface layers, and performing reciprocating reinforcement by use of a needling machine; and 8, pressing to prepare an automobile trim material sectional material by use of die pressing equipment. The automobile trim material produced by the method is low in price, is capable of adsorbing sound and insulating heat, is high in rigidity, durable in use, simple in technological process and free from environmental pollution.

The invention discloses a concrete expansive agent, which belongs to the technical field of concrete additives. The concrete expansive agent comprises the following raw materials in parts by weight: 20-30 parts of coal ash, 5-15 parts of gypsum powder, 5-15 parts of alumstone, 2-6 parts of aluminum oxygen chamotte, 10-30 parts of calcium sulphoaluminate, 4-12 parts of aluminum slag, 1-5 parts of calcium carbonate powder, 4-12 parts of nano aluminum titanate fiber, 8-16 parts of rosin rock ore sand, 5-15 parts of vermiculite power, 2-6 parts of polypropylene fiber, 3-9 parts of cellulose acetate butyrate, and 3-12 parts of triethanolamine. The concrete expansive agent is high in expansion rate and low in alkalinity, is capable of improving the property of concrete, preventing the concrete from cracking, meanwhile reducing leakage and improving strength, and is low in price, simple in production process, low in cost, and suitable for large-scale production.

The invention discloses high-strength crack-resistant concrete. The main materials used in the concrete include the following raw materials, in parts by weight, 30 to 35 parts of stone, 8 to 10 partsof cement, 20 to 23 parts of sand, 5 to 6 parts of water, 0.3 to 0.5 part of water reducing agent, and 2 to 3 parts of fly ash. The auxiliary materials used in the concrete include the following raw materials, in parts by weight, 8-10 parts of expanded polystyrene granules, 2-4 parts of lignocellulose, 3-4 parts of polypropylene fiber, 4-6 parts of fluororubber, 2-4 parts of quartz sand, 6-10 parts of feldspar, 0.2-0.6 part of sodium silicate, 4-8 parts of boric acid, and 2-3 parts of sodium hydrogencarbonate. According to the invention, the tensile strength of the whole concrete can be enhanced and the concrete can be prevented from breaking by adding the glass wool fiber into the raw materials, and with addition of expanded polyphenyl granules, lignocellulose, polypropylene fiber and fluororubber, the elasticity of the concrete is increased, and when subjected to strong impact, the concrete does not break immediately, thereby avoiding splashing after particle breakage.

A disclosed high-performance multifunctional coating applicable to polypropylene fiber fabric comprises the compositions in percentage: 25-35% of linear low-density polyethylene LLDPE resin, 5-15% of amorphous alpha-olefin polymer, 25-40% of olefin thermoplastic elastomer, 0.4-1.5% of UV-resistant functional master batch, 0.5-3.5% of a fire retardant and 10-30% of a filling agent. The product has good ultraviolet aging resistant performance and extremely high waterproof function, and is environment-friendly and reproducible, and the technological process and the recovery processing are free of pollution.

The invention discloses a heat-preservation sound-insulation magnesium oxysulfate fireproof material applied to a wallboard and a preparation method thereof, and mainly relates to the field of building wall materials. According to the technical scheme, the heat-preservation sound-insulation magnesium oxysulfate fireproof material is prepared from, by weight, 200 parts of magnesium oxide, 150-300 parts of a magnesium sulfate solution, 1-3 parts of a magnesium oxysulfate modifier, 0.1-0.7 part of polypropylene fibers, 10-70 parts of a fireproof adsorbing material, 4-16 parts of polystyrene particles, 30-100 parts of a foamed inorganic material, 10-70 parts of an active filler and 10-70 parts of foaming agent foam. The heat-preservation sound-insulation magnesium oxysulfate fireproof materialapplied to the wallboard and the preparation method thereof have the advantages that the polystyrene material is added into a magnesium oxysulfate cement material to achieve a heat preservation function, the foamed inorganic material and the foaming agent foam are added, the density of the a wallboard can be reduced when the heat-preservation sound-insulation magnesium oxysulfate fireproof material is used for preparing the wallboard, so that the wallboard generates a porous structure to achieve heat preservation and sound insulation effects, and the heat-preservation sound-insulation magnesium oxysulfate fireproof material also has the advantages of good fireproof performance, high strength, impermeability and moisture prevention of the magnesium oxysulfate cement material.

The invention discloses a preparation method of a polyurethane heat preservation plate, and belongs to the technical field of preparation of heat preservation plates. The preparation method comprises the following steps: smashing and screening expanded perlite, stirring and mixing the expanded perlite powder with calcined lime to prepare initiator powder, adding mixed powder prepared from portland cement and the like into the initiator powder, then adding packing microspheres prepared by mixing white emulsion and the like, adding polypropylene fibers to improve the anti-cracking performance of the plate, performing stirring reaction with self-made foam polyurethane, stewing and foaming in a die, and performing constant-temperature and constant-humidity steam curing to prepare the polyurethane heat preservation plate. The preparation method has the beneficial effects that the preparation steps are simple, and the obtained polyurethane heat preservation plate is relatively high in size stability, and has the compression strength greater than or equal to 306 kPa; the polyurethane heat preservation plate is easy to construct; after the polyurethane heat preservation plate is constructed, no cracks are formed on the surface layer; the polyurethane heat preservation plate is high in heat preservation performance and long in service life.

The invention discloses a preparation method of modified pitchstone-based thermal insulation mortar, and relates to the technical field of building materials. The method comprises the following steps: (1) preparation of modified pitchstone; (2) preparation of silanized polypropylene fibers; (3) preparation of the thermal insulation mortar. The modified pitchstone-based thermal insulation mortar prepared by the method has excellent heat preservation effect and crack resistance.

The invention discloses a fireproof core plate and a production method thereof; the fireproof core plate is produced from, by weight, 50-60 parts of deionized water, 30-40 parts of magnesium chloride, 5-15 parts of magnesium chloride, 0.5-1 part of polyacrylonitrile-based carbon fiber, 0.5-1 part of polypropylene fiber 10-15 parts of calcium carbonate, 1-2 parts of a modifier, 5-10 parts of silica fume, 10-20 parts of a plant foaming agent, 5-10 parts of sodium carboxymethyl cellulose, and 1-2 parts of phosphoric acid. Various flame retardants are reasonably used so that fireproof capacity of a door core is improved; the production steps and related conditions are reasonably arranged, and therefore the production process is saved and compatibility of related flame retardants is improved.

The invention discloses a metal spray cleaning agent which is composed of the following components including, by weight, 8% of sodium metabisulfite, 2% of ferrous sulfate, 3% of sodium tripolyphosphate, 2% of 3-methoxyl-3-methyl-butanol, 15% of an aluminum corrosion inhibitor, 10% of polyethylene glycol, 2% of cold-drawn polypropylene fiber, 2% of a silane coupling agent, 10% of polypropylene, 2%of a defoamer, 5% of diisocyanate, 4% of phosphorus-containing polyol, 5% of aluminum chloride, 2% of sodium nitrate, 1% of anhydrous borax, 1% of 2-hydroxyl-2-methyl-1-acetone, 5% of hexamethyl disilazane, 1% of polytetrafluoroethylene and the balance water. The cleaning agent can still maintain a low-foam or even non-foaming state when deburring is carried out at a spray pressure of 20 MPa to 15MPa at 20-40 DEG C, and the residual degree after cleaning is low.

The invention discloses a composite board with electromagnetic shielding performance and a preparation method thereof, and relates to the technical field of new materials. The preparation method comprises the following steps of firstly mixing aminated graphene oxide adsorbing copper ions with polypropylene; then carrying out dry spinning to obtain modified polypropylene fibers, carrying out suspension polymerization on styrene, benzoyl peroxide, hydroxyethyl cellulose, maleic anhydride, starch, potassium periodate and acrylic acid as main raw materials to obtain modified hollow microspheres; and finally, mixing the modified polypropylene fibers with carbon fibers, polyester and the modified hollow microspheres, carrying out carding and web forming to obtain a mixed fiber felt, and carrying out needling reinforcement and hot pressing treatment on the mixed fiber felt to obtain the composite board with the electromagnetic shielding performance. The prepared composite board with the electromagnetic shielding performance has excellent electromagnetic shielding performance and noise reduction performance, and is low in density and good in strength.

The invention relates to an antibacterial medical fabric which comprises a base layer (2) and an antibacterial layer (1). Warp yarns (11) and weft yarns (12) are mutually connected to form the antibacterial layer (1), nano silver fibers are woven to form the warp yarns (11) and the weft yarns (12), the base layer is made of fabrics sequentially including an isolated layer, a first protective layer, a second protective layer and a bottom layer from top to bottom, the isolated layer is made of thermoplastic polyurethane films, the first protective layer is made of polypropylene fiber fabrics, the second protective layer is made of polytetrafluoroethylene films, and the bottom layer is made of weft knitting fabrics and warp knitting fabrics with natural fibers, synthetic fibers and regenerated fibers. The antibacterial medical fabric has a fine antibacterial effect and various functions such as blood seepage prevention, water resistance, antibacterial performance and moisture permeability, and harm of bacteria to human bodies is decreased.

The invention discloses high-dust and oil absorption electrostatic composite nonwoven wiping cloth which is characterized in that raw materials are ES fibers and polypropylene fibers with a mixing ratio of 2:1; five-layer structures are combined by adopting a ultrasonic thermal bonding technology; from top to bottom, a first layer and a third layer are spunlaced nonwoven cloth layers, and the structures are compact; a second layer and a fourth layer are hot air non-woven cloth layers with tapered holes, the structures are fluffy, large in dust capacity and easy to extrude to produce static electricity and suction force; a fifth layer is a spunlaced nonwoven cloth layer with diamond patterns on the surface, and oil stains are easily scraped and removed. The high-dust and oil absorption electrostatic composite nonwoven wiping cloth disclosed by the invention has the benefits that through the rational selection of the raw materials and the design structures, not only is the static electricity easily generated to easily absorb a lot of dust, but also the oil stains can be quickly wiped; the high-dust and oil absorption electrostatic composite nonwoven wiping cloth has the characteristics of being compact in structure, soft, novel and low in cost.

The invention discloses a high-performance polypropylene fiber oiling agent, comprising cetanol potassium sulfate, polyethylene glycol (600) olein, mineral oil, and alkyl alcohol amide. The invention has the advantages of reasonable formula, good effect, and low production cost.