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1558results about How to "High surface gloss" patented technology

Flame-retardant PP/nylon corrugated tube composite material and preparation method thereof

The invention relates to a corrugated tube material and particularly discloses a flame-retardant PP (Polypropylene) / nylon corrugated tube composite material and a preparation method thereof, aiming to overcome the shortcomings in the prior art that the mechanical property of the PP corrugated tube is bad, the nylon corrugated tube is not flame-retardant, the stability is bad, and the service lifeis short. The material disclosed by the invention comprises the following substances by weight percentage: 47-75 of PP, 3-40 of nylon, 5-30 of flame retardant, 5-20 of compatilizer, 1-40 of flexibilizer, 0-10 of filling master batches, 0.2-1.5 of heat stabilizer, and 0.2-1.5 of processing agent. The preparation method comprises the steps as follows: the filling master batches are firstly preparedand then added into a twin-screw extruder to melt and mix with other materials, and pelletings are extruded out to prepare the flame-retardant PP / nylon composite material. The invention has the advantages of favorable flame-retardant property, excellent high-temperature resistance, friction resistance, chemical corrosion resistance, long service life, high surface glossiness, high electrical insulativity, simple manufacturing technology, and low cost.
Owner:SHANGHAI KINGFA SCI & TECH +1

Water-based release agent for aluminum alloy die casting and preparation method thereof

The invention discloses a water-based release agent for aluminum alloy die casting and a preparation method thereof. The release agent comprises, by mass, 10 to 30% of dimethicone, 5 to 15% of modified silicone oil, 5 to 20% of a wax composition, 4 to 15% of a surfactant, 1 to 3% of an anti-rust corrosion inhibitor and 0.1 to 1% of a bactericide, with the balance being deionized water. The preparation method comprises the following steps: heating dimethicone, modified silicone oil, the wax composition and the surfactant to a temperature of 70 to 80 DEG C and carrying out uniform mixing with stirring; slowly adding deionized water accounting for 30 to 40% of the total weight of the release agent with stirring in batches so as to prepare an oil-in-water O/W pre-emulsion; and carrying out grinding by using a colloid mill and adding the anti-rust corrosion inhibitor, the bactericide and residual deionized water so as to obtain the water-based release agent with an emulsion particle size of 0.1 to 0.4 mu m. According to the invention, modified silicone oil is used as main base oil, so emulsification difficulty is lowered down, heat resistance is improved, and good high temperature stability is obtained; the wax composition has excellent lubrication capability and a good film forming effect. The release agent has excellent heat resistance, excellent lubricity and a good film forming effect.
Owner:上海福岛新材料科技有限公司

Three-layer co-extruded EVA (ethylene-vinyl acetate copolymer) long-life fog-dissipation environment-friendly multifunctional greenhouse film

The invention discloses a nano fog-dissipation multifunctional greenhouse agricultural film, and in particular relates to a three-layer co-extruded EVA (ethylene-vinyl acetate copolymer) long-life fog-dissipation environment-friendly multifunctional greenhouse film, belonging to the field of agricultural mulching films. The raw material formula of an outer layer comprises the following components in percentage by weight: 20-50% of linear low-density polyethylene (LLDPE), 20-50% of low-density polyethylene (LDPE), 10-20% of metallocene polyethylene (mPE) and 5-10% of double-prevention masterbatch; the raw material formula of a middle layer comprises the following components in percentage by weight: 30-40% of ethylene-vinyl acetate copolymer (EVA), 20-40% of linear low-density polyethylene (LLDPE), 20-40% of low-density polyethylene (LDPE) and 5-10% of three-prevention masterbatch; the raw material formula of an inner layer comprises the following components in percentage by weight: 30-40% of ethylene-vinyl acetate copolymer (EVA), 10-20% of linear low-density polyethylene (LLDPE), 20-50% of low-density polyethylene (LDPE) and 5-10% of three-prevention masterbatch; and the formulas of the outer layer, the middle layer and the inner layer are uniformly mixed respectively, master batches are prepared by using a double-head thread screw double-screw extruding machine, a three-layer film is formed through a co-extrusion die head and is extruded out to prepare the multifunctional agricultural greenhouse film. Every quality technical index of the film reaches or exceeds a national standard, and a small part of the indexes is more than 2 times better than the national standard, so that the film is excellent in antiaging performance and cannot generate fog drops, and the service life of the film reaches more than 3 years.
Owner:HENAN YINFENG PLASTIC

High heat resisting and high abrasion resistant polyvinyl chloride (PVC) modified material and preparation method thereof

ActiveCN103059465AImprove wear resistance and heat resistanceImprove surface gloss and surface smoothnessPelletizingPlasticizer
The invention relates to the technical field of polyvinyl chloride composite materials, in particular to high heat resisting and high abrasion resistant polyvinyl chloride (PVC) modified materials and a preparation method of the high heat resisting and high abrasion resistant PVC modified materials. The modified materials comprise the following raw materials, by weight, 80-120 parts of PVC resin, 25-60 parts of stuffing bulking agents, 21-60 parts of plasticizer, 1-10 parts of chlorinated polyvinyl chloride, 1-10 parts of fire retardant, 1-10 parts of stabilizer, 1-10 parts of impact modifier and 0.2-2 parts of lubricating agents. The raw materials are weighed according to parts by weight and are blended. After being blended, the raw materials are extruded out to be granulated through a double-screw extruder to produce the modified materials. The modified materials are good in heat resisting property and abrasion resistant property, environment-friendly, high in strength, good in flame retardant effect, strong in compressing property and toughness, good in processing property and good in comprehensive property. The preparation method is simple in craft, convenient to operate and control, stable in quality and high in production efficiency, and can be produced in a large scale industrialization mode.
Owner:广东祺龙科技有限公司

Low temperature resistant environment-friendly polyvinyl chloride (PVC) modified material and preparing method thereof

ActiveCN103059468AGood flexibility and electrical insulation propertiesImprove low temperature resistancePelletizingPlasticizer
The invention relates to the technical field of polyvinyl chloride composite materials, in particular to a low temperature resistant environment-friendly polyvinyl chloride (PVC) modified material and a preparing method thereof. The modified material comprises by weight, 80-120 parts of PVC resin, 20-45 parts of filling agent, 41-80 parts of plasticizer, 1-10 parts of cold-resistant modifying agent, 1-10 parts of fire retardant, 1-10 parts of stabilizing agent, 5-15 parts of impact modifier and 0.2-2 parts of lubricating agent. Each raw material is weighed by weight and mixed, after being stirred; the raw material is squeezed out of prilling through a double-screw extruder and the modified material is available. The low temperature resistant performance of the modified material manufactured by the preparing method is fine; the minimum usage temperature can reach below 65 DEG C. The modified material is environment-friendly and has the advantages of high intensity, good flame retardant effects, strong compression performance and toughness, excellent processing performance and better comprehensive performance. The preparing method of the low temperature resistant environment-friendly polyvinyl chloride (PVC) modified material has the advantages of being simple in technology, convenient to control and operate, stable in quality, high in production efficiency. In addition, the preparation method of the low temperature resistant environment-friendly polyvinyl chloride (PVC) modified material can be used for a large scale industrial production.
Owner:广东祺龙科技有限公司

Phenyl organic silicon modified polyurethane resin, preparation method and application thereof

The invention discloses a phenyl organic silicon modified polyurethane resin, a preparation method and application thereof, and belongs to the field of polyurethane resin. The structural formula of the phenyl organic silicon modified polyurethane resin is as shown in the description; the preparation method of the phenyl organic silicon modified polyurethane resin comprises the following steps: dissolving phenylsilanediol into an organic solvent, taking a reaction with chlorosilane (R<2>SiCH3Cl2) to prepare hydroxyl-terminated methyphenyl polysiloxane, under the action of a catalyst, mixing the hydroxyl-terminated methyphenyl polysiloxane with a silane compound to obtain amino or imino terminated methyphenyl polysiloxane, then in the atmosphere of argon, mixing diisocyanate, amino or imino terminated methyphenyl polysiloxane, polyethylene glycol or polyol with a mixed solvent, and taking a reaction to obtain the phenyl organic silicon modified polyurethane resin. The phenyl organic silicon modified polyurethane resin has the advantages of being capable of reducing the water absorption, improving the hydrophobicity, and improving the compatibility of organic silicon and polyurethane, and can be prepared to thin film with good properties; the preparation method is simple and feasible.
Owner:WUHAN UNIV

High temperature resistant environment-friendly polyvinyl chloride (PVC) modified material and preparing method thereof

The invention relates to the technical field of polyvinyl chloride composite materials, in particular to a high temperature resistant environment-friendly polyvinyl chloride (PVC) modified material and a preparing method thereof. The modified material comprises by weight, 80-120 parts of PVC resin, 30-70 parts of filling agent, 31-70 parts of plasticizer, 1-10 parts of hot-resistant modifying agent, 1-10 parts of fire retardant, 1-10 parts of stabilizing agent, 5-15 parts of impact modifier and 0.2-2 parts of lubricating agent. Each raw material is weighed by weight and mixed after being stirred; the raw material is squeezed out of prilling through a double-screw extruder and the modified material is available. The hot temperature resistant performance of the modified material manufactured by the preparing method is fine; the maximum usage temperature can reach up to 135 DEG C. The modified material is environment-friendly and has the advantages of high intensity, good flame retardant effects, strong compression performance and toughness, excellent processing performance and better comprehensive performance. The preparing method of the high temperature resistant environment-friendly polyvinyl chloride (PVC) modified material has the advantages of being simple in process, convenient to control and operate, stable in quality, and high in production efficiency. In addition, the preparation method of the high temperature resistant environment-friendly polyvinyl chloride (PVC) modified material can be used for a large-scale industrial production.
Owner:广东祺龙科技有限公司

High-hardness scratch-resistant high-gloss modified polypropylene (PP) material

The invention discloses a high-hardness scratch-resistant high-gloss modified polypropylene (PP) material, belonging to the technical field of high polymer materials. The high-hardness scratch-resistant high-gloss modified PP material is prepared from the following raw materials in parts by weight: 40-80 parts of homopolymerized or copolymerized PP, 5-30 parts of polymethyl methacrylate (PMMA), 15-20 parts of barium sulfate, 5-10 parts of glass fiber, 0.5-10 parts of modifier, 5-20 parts of compatilizer and 0.2-0.8 part of coupling agent. PP is compatible with PMMA to ensure that the mechanical strength of the material is improved, meanwhile, the surface hardness and corrosion resistance of the product are improved, and the surface gloss of the product is increased; inorganic fillers of glass fiber and barium sulfate are filled into the modified PP material disclosed by the invention to ensure that the mechanical performance of the product is further improved, and meanwhile, the glossiness of the product is improved; various antioxidants, weather resistance agents, antistatic agents and anti-freezing agents are added into the modified PP material disclosed by the invention to ensure the service life of the product, prevent the product from aging, and ensure that the product can adapt to various environments and can be normally used under rigorous conditions.
Owner:杭州金州高分子科技有限公司
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