70results about How to "Balance rigidity" patented technology

The invention relates to a polyphenyl ether polypropylene resin composition and a preparation method thereof. The composition comprises, by mass, 30% to 60% of polypropylene resins, 20% to 50% of polyphenyl ether resins, 0% to 20% of styrene resins and 5% to 20% of compatilizers. The preparation method includes the following steps of uniformly mixing the polyphenyl ether resins, the styrene resins and the compatilizers to obtain a premix, placing the premix in a double-screw extruder, simultaneously adding the polypropylene resins in a side-feed mode, performing a melt extrusion and granulating. The polyphenyl ether polypropylene resin composition and the preparation method thereof have the advantages that the property of the polyphenyl ether polypropylene resin composition is between those of thermoplastic polyolefin and engineering plastics, a good balance among the rigidity, toughness, heat resistance and processing performance of the material is achieved, the polyphenyl ether polypropylene resin composition can be applied to various fields such as automobile dashboards, automobile seat base plates, electric tool shells, fluid engineering components and food utensils, and the polyphenyl ether polypropylene resin composition and the preparation method thereof have a good application prospect.

The invention discloses an environment-friendly modified polypropylene profiled bar base station antenna casing, which satisfies the required strength, modulus and hear resistance requirements of the base station antenna housing profiled bar, and more importantly, the melt-strength improvement can reach extrusion moulding treatment requirement of the complex section structural profile bar. The PP profile bar base station antenna casing has good machinery performance and greatly enhances the ultraviolet light resistant performance. The modified polypropylene profiled bar base station antenna casing comprises the following raw materials by mass: 100 parts of low melt flow rate polypropylene resin, 0.2-2 parts of lubricant, 0.1-1.0 parts of ultraviolet light absorbent, 0.2-0.5 parts of anti-oxidant, 0-0.8 parts of hindered amine light stabilizer, 5-20 parts of surface modified titanium dioxide, 5-30 parts of surface modified inorganic filling material and 0.1-0.5 parts of rigid nucleating agent.

A guide wire having an elongated core wire provided with a tabular distal end portion, and a coiled wire provided on an outer circumference of the core wire, wherein the distal end portion of the core wire is provided with a cutout section or a rased section so that a diametrical cross-sectional area of the distal end portion of the core wire gradually decreases toward a distal end thereof.

The invention provides an abrasion-resistant high-flame-retardance PC material. The abrasion-resistant high-flame-retardance PC material is prepared from, by weight, 70-80 parts of PC, 5-12 parts of glass fibers, 1-5 parts of flexibilizer, 5-8 parts of compatilizer, 3-5 parts of abrasion-resistant agent, 0.1-1 part of coupling agent, 0.1-1 part of anti-dripping agent, 0.1-1 part of flame retardant, 0.2-2 parts of antioxygen, 0.2-2 parts of ultraviolet light absorber and 0.2-2 parts of lubricant. The invention further provides a preparation method of the abrasion-resistant high-flame-retardance PC material. The PC material has good abrasion resistance, high flame retardance and excellent mechanical performance; the PC material is low in cost, high in cost performance, simple in production technological process, easy to implement, free of environmental pollution and small in harm to human health.

The resin composition according to the present invention comprises(A)a graft polymer prepared by grafting in emulsion polymerization 100 parts by weight of monomer mixture comprising 20-30% by weight of vinyl cyanide compound and 70-80% by weight of vinyl aromatic compound to 20-60 parts by weight of diene rubber,(B)a graft polymer prepared by grafting in emulsion polymerization 100 parts by weight of monomer mixture comprising 20-30%by weight of vinyl cyanide compound and 70-80% by weight of vinyl aromatic compound to 20-60 parts by weight of acrylic rubber,(C)a linear copolymer prepared by polymerizing 40-50% by weight of vinyl cyanide compound and 50-60% by weight of vinyl aromatic compound, and (D) a branched copolymer prepared by 30-35% by weight of vinyl cyanide compound and 65-70% by weight of vinyl aromatic compound.

The invention discloses a high-impact low-cost PP (Propene Polymer)-SBS (styrene-butadiene-styrene block copolymer)-CaCO3 ternary composite material and a preparation method thereof. The high-impact low-cost PP-SBS-CaCO3 ternary composite material comprises the following components in percent by weight: 33.3-56.4 percent of PP, 6.7-11.8 percent of SBS and 31.8-60.0 percent of CaCO3. The preparation method of the high-impact low-cost PP-SBS-CaCO3 ternary composite material comprises the following steps of: 1, mixing and extruding partial PP and SBS for pelleting to prepare a PP-SBS blending master batch material; and 2, mixing and extruding the PP-SBS blending master batch material prepared by the step 1 and left PP and CaCO3 for pelleting to prepare the high-impact low-cost PP-SBS-CaCO3 ternary composite material. The high-impact low-cost PP-SBS-CaCO3 ternary composite material has the characteristics of balance of impact property and rigidity, excellent comprehensive mechanical property and low cost, is suitable for manufacturing a dual-wall corrugated pipe and a large-diameter steel and plastic composite pipe, or is used as a toughening modifying agent of common PP (such as PPH (Propene Polymer Homopolymer) and PPR (propylene random copolymer)).

The invention discloses a high-tenacity transparent PS plastic cement material. The high-tenacity transparent PS plastic cement material consists of the following raw materials in parts by weight: 70-85 parts of polystyrene (PS), 5-8 parts of polyether sulfone resin (PES), 7-12 parts of polyvinylidene fluoride (PVF) and 3-10 parts of a composite modifier. The invention further discloses a preparation method of the high-tenacity transparent PS plastic cement material. According to the preparation method disclosed by the invention, the PES, the PVF and the PS are blended so as to obtain the plastic cement material, a shock resistant modifier and a flexibilizer in the composite modifier are used for composite modification for the plastic cement material, so that the rigidity and the tenacity of PS products are effectively balanced, and the PS plastic cement material with high tenacity, high impact strength and favorable transparency is obtained.

The invention discloses a composite material, a preparation method thereof and air conditioner workpieces. The composite material comprises the following materials, in parts by weight: 50-70 parts of polypropylene, 10-20 parts of chopped glass fibers, 20-30 parts of an inorganic filler, 5-10 parts of a graft compatilizer, 0.2-0.8 part of an antioxidant, 0.5-2.0 parts of a lubricant, 0.1-1.0 part of a nucleating agent, and 0.5-2.0 parts of a rare earth oxide. The composite material has a low linear expansion coefficient and excellent dimensional stability, when the air conditioner workpieces are prepared by adopting the composite material, noise caused by thermal expansion and cold contraction in an air conditioner usage process can be effectively avoided.

A piezoelectric resonator element includes: a resonating arm extending in a first direction and cantilever-supported; a base portion cantilever-supporting the resonating arm; and an excitation electrode allowing the resonating arm to perform flexural vibration in a second direction that is orthogonal to the first direction. In the piezoelectric resonator element, the resonating arm includes an adjusting part adjusting rigidity with respect to a bend in a third direction that is orthogonal to the first and second directions.

A three-element composition is prepared from polypropene (PP) (72-91 wt%), POE or MPOE (1-13) and BaSO4 (7-20) through mixing, stirring, kneading and extruding out. Its advantages are high impact strength, high toughness, high P / C ratio, high resistance to thermal or ultraviolet ageing, and low cost.

The invention discloses a high-toughness formaldehyde removing bamboo-plastic foamed composite door and window material and a preparation method thereof. The material is characterized by being prepared from, by weight, 2-5 parts of high-elasticity polypropylene fibers, 60-70 parts of isotactic polypropylene, 1-2 parts of SiO2, 10-15 parts of high-melt-strength polypropylene, 30-40 parts of bamboo powder, 10-15 parts of activated carbon, 1-2 parts of polyethylene, 1-2 parts of corundum powder, 20-25 parts of Cu(NO3)2, 1-3 parts of stearic acid, 1-3 parts of calcium stearate, 1-3 parts of a foaming agent AC1601, 10-15 parts of zinc stearate, 50-60 parts of NaOH solution and 1-3 parts of polyacrylate emulsion. The activated carbon and diamond are modified by polyacrylate and the Cu(NO3)2, and loading of the Cu(NO3)2 in pore passages and surfaces of the activated carbon and the diamond is promoted; due to addition of the high-elasticity polypropylene fibers and the like, elasticity of the material is improved.

The invention discloses a composite nanometer material and making method of polyhexamethylene adipamide (nylon 66), which comprises the following parts: 100wt% nylon 66, 5-20wt% elastic body and 5-30wt% inorganic nanometer particle, wherein these materials are blended to fuse and squeeze under 260-280 deg. c. The invention balances the rigidity, flexibility and fire resistance and size stability, which expands the applying domain of nylon 66.

The invention relates to a high rigidity polycarbonate composition with infrared transmission and a preparation method thereof. The composition is prepared by using the following components and raw materials in parts by weight: 81-95 parts of silicon-containing PC resin, 5-15 parts of glass fiber, 2-6 parts of a zinc sulfide dispersion solution, 0.1-1 part of an antioxidant, 0.1-1 part of a lubricant, and 0.01-0.1 part of a color powder. The preparation method is as follows: dispersing deionized water and zinc sulfide according to a ratio of 8:2 by an agitator to obtain the dispersion solution, adding silicon-containing PC resin, the antioxidant, the lubricant, and the color powder into a mixing mixer to perform mixing, feeding the mixture into an extruder from a main material-feeding portof the extruder, feeding the zinc sulfide dispersion solution into the extruder from a side material-feeding port of the extruder using a liquid pump, feeding glass fiber into the extruder from a side material-feeding port of the extruder, and carrying out blend granulation to obtain the high rigidity polycarbonate composition with infrared transmission. The infrared transmission performance of silicon-containing PC is improved by using zinc sulfide, the excellent dispersion of zinc sulfide can be obtained because the zinc sulfide dispersion solution is added, and the balance of toughness andrigidity is obtained by using silicon-containing PC and glass fiber, so that the high rigidity polycarbonate composition with infrared transmission is obtained.

The invention provides an imitation stone paint color granule, an imitation stone paint and a preparation method and application thereof. The imitation stone paint color granule comprises 68.0-74.0% of imitation stone paint color phase paint, 23.8-30.2% of a glue solution and 1.8-2.2% of a cross-linking agent. The imitation stone paint can show a vivid texture only by spraying with a gun, a colorpoint is not easy to break in the spraying process, the color point is easy to spread, the consumption is reduced, meanwhile, the imitation stone paint has excellent weather resistance and water resistance, various natural marble effects can be made, and the imitation stone paint also has storage stability, weather resistance and water resistance and can completely meet the requirements of national standards.

Piezoelectric vibrating pieces are disclosed that include a base portion and first and second vibrating arms extending in a longitudinal direction from the base portion. Each vibrating arm has first and second main surfaces, a first groove on the first main surface, and a second groove on the second main surface. The grooves extend in the longitudinal. By adjusting the length and shapes of at least the first grooves relative to each other, the rigidity of the vibrating arms can be balanced and adverse effects of deformed regions between the vibrating arms caused by anomalous etching can be reduced.

The invention discloses a special material for automobile bumpers and a preparation method thereof, and relates to the technical field of new materials. 10% to 15% toughening agent, 15% to 20% talcum powder, 1% to 5% compatibilizer, and 1% to 5% auxiliary agent. The preparation method is to wash, crush, and Dehydration, drying, extruding and granulating to obtain pellets, and mixing the pellets with polypropylene copolymer, toughening agent, talcum powder, compatibilizer, and additives according to the proportion, and stirring at high speed for 3 to 5 minutes to obtain the mixture. The mixture is fed into a twin-screw extruder for kneading, melted and extruded, and granulated to obtain the product. The main base material of the invention has abundant sources and low cost, can reduce environmental pollution, realize resource recycling, and improve the dimensional stability of the material after the material components are blended.