142results about How to "Improve appearance performance" patented technology

The invention relates to an antiscratch resin. The antiscratch resin comprises the following components in part by weight: 50 to 90 parts of polymethyl methacrylate (PMMA) resin, 10 to 50 parts of toughening agent, 0.2 to 0.6 part of light stabilizer, 0.2 to 1 part of antioxidant, 0.2 to 2 parts of lubricating agent, 0 to 3 parts of pearl pigment, 0 to 3 parts of metal pigment and 0 to 3 parts of toner. The antiscratch resin is prepared by the following steps of: stirring and mixing all the components in a high-speed mixing machine; conveying the mixture to a double-screw extruder; melting and compounding the materials under conveying, cutting and mixing action of screws; and extruding, bracing, cooling and dicing to obtain the antiscratch resin. The antiscratch resin has high impact strength, high antiscratch property, high heat resistance, various appearance effects and a wide application range, and can avoid spraying completely.

The invention discloses a spray-free polyamide compound with metallic luster. The spray-free polyamide compound is prepared from the following raw materials in parts by weight: 100 parts of polyamide resin, 4-20 parts of acrylonitrile-styrol copolymer, 0.2-2 parts of metallic pigment, 2-10 parts of compatilizer, 0-25 parts of filler, 0.2-6 parts of flexibilizer, 0.2-2 parts of dispersing auxiliary and 0.2-2 parts of processing agent. According to the invention, the acrylonitrile-styrol copolymer used as a modifier and the polyamide resin are compounded as a matrix resin of the compound, and meanwhile, the other raw material components are adjusted and the compatilizer, the dispersing auxiliary and the flexibilizer at a specific ratio are supplemented, so that the processing performance of the polyamide compound and the mechanical property and appearance effect of the formed polyamide compound are optimized.

The invention discloses a low-VOC (volatile organic compound) long glass fiber reinforced polypropylene composite material and a preparation method thereof. The composite material comprises the following components by weight percent: 10-60% of long glass fiber arranged parallel to particle length and 90-40% of modified polypropylene resin, wherein the modified polypropylene resin is prepared by carrying out reaction and extrusion on known commercialized polypropylene resin through melting and kneading equipment such as a two-screw extruder. The preparation method has the beneficial effects that high-flowability polypropylene resin does not need to be singly produced or purchased in advance, and the production process is simplified. The prepared low-VOC long glass fiber reinforced polypropylene composite material has the beneficial effects of good apparent performance, no exposed glass fiber, no warping, good heat resistance, and easiness for processing. The product prepared by the method has the advantages of good low-VOC diffusion property and good mechanical properties such as good stretch and bending strengths and good impact resistance.

The invention discloses a water-based epoxy floor coating and a preparation method thereof. The water-based epoxy floor coating is composed of the following raw materials: 1.2-1.3 parts of water-based epoxy curing agent, bisphenol A liquid ring 1 part of oxygen resin, 7 to 8 parts of the third component; wherein, the third component consists of 20 to 30 parts of high-grade cement, 15 to 20 parts of coarse quartz sand, 40 to 50 parts of fine quartz sand, 0.1 to It is made by mixing 0.2 parts of water reducer, 0.1 to 0.3 parts of defoamer and 0.1 to 0.3 parts of cellulose. The embodiment of the present invention not only has good performance in strong acid and strong alkali resistance, wear resistance, pressure resistance, impact resistance, mildew resistance, waterproof, dust resistance, skid resistance, etc., but also has simple preparation process and long service life. When the repair material is used, there will be no obvious connection seam between the original coating surface and the new repair coating surface, and the repair position can also maintain good crack resistance, flexural strength and compressive strength.

The environment-protecting elastic wall putty is prepared by mixing densifier, polyacrylate emulsion, anti-mildew agent, plasitcizer, defoaming agent, antifreezing, agent, and filming agent and two -component calcium carbonate powder and light calcium carbonate, or gypsum powder, talcum powder and heavy calcium carbonate powder. The environment-protecting elastic wall putty is used in base coating with strong adhesion, high elasticity, high alkali resistance, safety no toxicity and no crack, no stripping, no yellowing, no mildew and no powdering.

The invention relates to an environment-friendly modified master batch and process for preparation, the product can not only reduce the cost of production, but also enhance mechanical property of filling plastics, and has the advantages of simple technique preparing of the preparation, good fluidity of the prepared master batch and easy forming. The environment-friendly modified master batch comprises the following components by weight: heavy calcium carbonate of 2000-3000 mesh sizes, linear low density polyethylene, polyethylene wax, corrdination type titanate coupling agent, thinner, compound wax, zinc stearate grease, calcium stearate and auxiliary agent. The process for preparation of the invention is that the heavy calcium carbonate of 2000-3000 mesh sizes is placed in a mixer under the rapid of 200-300 r / min to mix for 15 minutes, the corrdination type titanate coupling agent and the thinner are charged to churn up for 5-10 minutes, and then the rest raw materials are charged for mixing 1-3 minutes to obtain mixture, the mixture is placed in a co-rotating twin-screw granulator for granulating, hot cutting, cooling and packing to prepare the environment-friendly modified master batch.

The invention provides a building additive manufacturing device capable of arranging steel bars. The building additive manufacturing device comprises a base, a support, a printing mechanism and a multi-function mechanism; the base comprises a left base board and a right base board, wherein the left base board and the right base board are symmetrically arranged; the support comprises a left upright, a right upright and a beam, wherein the left upright and the right upright are symmetrically arranged; the bottoms of the left upright and the right upright are connected with the left base board and the right base board correspondingly and can horizontally slide along the left base board and the right base board, and the two ends of the beam are connected with the left upright and the right upright correspondingly and perpendicularly slide along the left upright and the right upright; the printing mechanism comprises a first pedestal, a printing arm and a printing assembly; the multi-function mechanism comprises a second pedestal, and a multi-function arm, a spraying maintenance assembly and a grabbing assembly; the first pedestal and the second pedestal are both arranged on the beam and can horizontally slide along the beam, the printing arm is connected with the side end of the first substrate, and the printing assembly is connected with the bottom of the printing arm; and the multi-function arm is connected with the side end of the second substrate, and the spraying maintenance assembly and the grabbing assembly are both connected with the bottom of the multi-function arm. According to the building additive manufacturing device capable of arranging the steel bars, steel bar arranging and constructing printing, spraying and maintenance of a construction structure can be integrally completed, structural quality is guaranteed, and labor efficiency is improved.

The invention provides a permanent antistatic and low-temperature-resistant polystyrene material as well as a production method and application thereof. The permanent antistatic and low-temperature-resistant polystyrene material is prepared from the following raw materials in parts by weight: 50 to 75 parts of anti-impact polystyrene, 7 to 20 parts of permanent antistatic agent, 5 to 30 parts of toughening agent, 2 to 10 parts of compatilizer, and 0.2 to 1.0 part of processing aid. By adopting the permanent antistatic and low-temperature-resistant polystyrene material, by virtue of the combination of the low-temperature toughening effect of the toughening agent and the compatilizer for improving the interface strength, excellent low-temperature toughness of the material can be realized.

The invention relates to the field of modification of polymer engineering plastic, in particular to a method for preparing a hydrolysis-resistant glass fiber reinforced polyamide 66 (PA66) composite material. The composite material is characterized by consisting of the following materials in part by weight: 55 to 65 parts of PA66, 0.1 to 2 parts of hydrolysis-resistant agent, 30 to 40 parts of glass fibers, 1 to 3 parts of nanoparticles, 0.5 to 2 parts of antioxidant and 0.5 to 2 parts of lubricating agent. According to the preparation method, extrusion granulation is performed by a double screw extruder. By introducing the high-efficiency hydrolysis-resistant agent, the hydrolysis resistance of the PA66 is improved, and the physical and mechanical properties of the glass fiber reinforced PA66 in a high-humidity environment are enhanced; and meanwhile, by introducing the nanoparticles, the mechanical properties such as tensile strength, hardness and the like of the PA66 are further enhanced, the wear resistance of the PA66 is enhanced, and the application range of the PA66 is further expanded.

The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant polyamide resin composition and a preparation method thereof. The composition is prepared from polyamide, hyperbranched polymer, carbon fiber tube, antioxygen, surface modifier, thixotropic agent, non-halogen flame-retardant and flame retardant synergist, wherein the hyperbranched polymer is amino-end-group hyperbranched polyamide. The polyamide is adopted as a resin substrate and cooperates with a certain amount of the hyperbranched polymer, the carbon fiber tube, the surface modifier, the non-halogen flame-retardant, the flame retardant synergist and the thixotropic agent, the carbon fiber tube, the non-halogen flame-retardant and the flame retardant synergist are uniformlydispersed in the polyamide, the prepared halogen-free flame-retardant polyamide resin composition has the advantages of being high in strength, good in dimensional stability, good in chemical resistance and excellent in electrical properties, outstanding physical performance can be maintained under severer temperature and humidity conditions, and the composition has high flame retardant performance which reaches UL94V0.

The invention belongs to the technical field of concrete foundation engineering, and particularly relates to environment-friendly high-strength self-compacting fair-faced concrete for a bridge bent cap and a preparation process thereof. The high-strength self-compacting fair-faced concrete comprises 500-550 parts of a cementing material per cubic meter, 740-880 parts of fine aggregate per cubic meter, 880-1020 parts of coarse aggregate per cubic meter and 9.36-10.40 parts of an additive per cubic meter. The cementing material comprises 360-400 parts of cement per cubic meter, 50-75 parts of mineral powder S75 per cubic meter and 65-90 parts of II-grade fly ash per cubic meter. The concrete disclosed by the invention is relatively good in apparent properties, basically consistent in color and free of obvious color difference; basically no repair trace exists; the maximum diameter of surface bubbles is not more than 5 mm, the depth of surface bubbles is not more than 2 mm, and the area of each square meter of bubbles is not more than 12 cm<2>; and the concrete is free of obvious cracks, slurry leakage, flowing and scouring traces, oil stains, ink marks, rust spots and pulverized substances.

The invention discloses an alumite hot stamping adhesive. The alumite hot stamping adhesive is prepared from components in parts by weight as follows: 10-20 parts of a styrene thermoplastic elastomer,40-65 parts of tackifying resin, 5-25 parts of auxiliary resin and 8-18 parts of fumed silica. Due to addition of the styrene thermoplastic elastomer, the alumite hot stamping adhesive has good bonding performance and thermoplasticity at high temperature, the added tackifying resin can provide better initial viscosity, and the auxiliary resin can enhance adhesion to an aluminum layer. Under the synergistic effect of the styrene thermoplastic elastomer, the tackifying resin and the auxiliary resin, the hot stamping adhesive has proper softening point to meet high-speed hot stamping, good adhesion performance and certain temperature resistance; the added fumed silica improves the appearance effect and the hot stamping effect of the hot stamping adhesive. The invention also provides a preparation method of the alumite hot stamping adhesive.