124results about How to "Improve blend compatibility" patented technology

Alkali lignin is a main by-product of the papermaking industry of our country, and sever environmental pollution will be caused by direct discharge of alkali lignin. The invention discloses a preparation method of an industrial alkali lignin/polyvinyl alcohol cross-linked thin film, so as to increase utilization ratio of lignin, reduce environmental pollution and ease the resource crisis. The industrial alkali lignin/polyvinyl alcohol cross-linked thin film is prepared by following steps, industrial alkali lignin and polyvinyl alcohol (PVA) are taken as raw materials, and are crosslinked by a cross-linking agent; and then the mixture is subjected to tape casting so as to obtain the alkali lignin/polyvinyl alcohol cross-linked thin film. An optimized preparation technology is obtained based on mechanical properties. The mechanical properties of the industrial alkali lignin/polyvinyl alcohol cross-linked thin film are better than that of industrial polyvinyl alcohol films; absorption rate on ultraviolet light is about 100%; and transmittance is reduced to a certain degree. Blending compatibility of alkali lignin and PVA is excellent; the surfaces of alkali lignin and polyvinyl alcohol thin films, which are prepared by blending or crosslinking, are smooth; and phase separation is not caused. Thermal stability of the industrial alkali lignin/PVA cross-linked thin film is increased. The industrial alkali lignin/PVA cross-linked thin film can be used as an excellent ultraviolet absorption material, and it is possible to develop a novel specific packaging material or mulching film.

The invention discloses a high temperature-resistant nylon/thermotropic liquid crystal polymer blend and a preparation method for the blend. The blend comprises the following components in parts by weight: 70-90 parts of high temperature-resistant nylon, 5-10 parts of thermotropic liquid crystal polymer, 5-10 parts of compatilizer, 0.2-1.0 part of antioxygen and 0.2-0.8 part of lubricant. The novel copolymer material provided by the invention not only has the characteristics of high strength and high rigidity of the high temperature-resistant nylon but also has excellent flame retardant property and high liquidity of the liquid crystal polymer. The material production process is simple; the operation of the method is simple and convenient; and very high industrial economic benefits can be obtained.

The invention relates to a biodegradable material containing aliphatic polycarbonate, and a preparation method and an application thereof. The biodegradable material is obtained by the following steps of mixing 20-90 parts by weight of aliphatic polycarbonate, 10-80 parts by weight of aliphatic polyester, 0.01-1 part by weight of an organic peroxide, 0.05-1 part by weight of a cross-linking agent, 3-15 parts by weight of a compatilizer, 0.3-5 parts by weight of a plasticizer, 0.1-5 parts by weight of a heat stabilizer and 0.01-1 part by weight of an auxiliary agent uniformly; adding the above mixture in a double-screw extruder for melt blending, stretching the blended mixture into strips; pelletizing the strips to obtain granular mixing resin slices; and vacuum drying the slices and removing water from the slices. The biodegradable material can be used for preparing completely biodegradable film which has various excellent performances of conventional films, can keep relatively good transparency, has relatively high tensile strength, can provide high toughness and tearing strength, and has good thermal stability, etc.

A heat conductive plastic pipe is characterized by melt-mixing and modifying a pipe-grade thermoplastic resin with good corrosion resistance and micro powder of a heat conductive material with good corrosion resistance and high heat conductivity and then obtaining a tubing by extrusion molding, wherein, the heat conductivity is 150%-300% of the pipe-grade thermoplastic resin. The tubing can be directly applied to a ground source heat pump, a water source heat pump system and a floor radiant heating system as the heat-exchanging pipe, thus improving heat transfer capability of the system; and the tubing can be machined into heat exchangers with different styles and different structures by welding, and can be applied to the manufacturing processes of chemical industry, foods and medicine.

The invention discloses a composite board produced from modified phosphorus slag and waste plastics and a production method thereof. According to the invention, waste polypropylene or polyethylene plastics and industrial waste phosphorus slag are taken as major raw materials, and formed into high strength composite board by an appropriate preparation method; as a result, pollution on environment caused by the waste plastics and phosphorus slag is reduced and a new material is added to the constructional engineering; the new material is capable of substituting for bamboo plywoods and wood building templates which are widely used in building operations. Furthermore, a coupling agent isopropyl trioctylpyrophosphatotitanate or isopropyl trioleyl titanate is utilized to modify the surface of the phosphorus slag so that the surface property of the phosphorus slag is changed from hydrophily into lipophilicity; the modified phosphorus slag has excellent dispersing performance in an organic phase, so that the blending compatibility and combinability of the modified phosphorus slag with the waste plastics are greatly improved; consequently, the performance of the composite board is improved.

The invention relates to a high-strength and high-tenacity plastic building template. On one hand, the mixed material of plastics and rubber serves as the main material of the building template, the weight ratio of the rubber to the plastics is higher than that of rubber and plastics in the prior art, and a specific accessory ingredient system is adopted to improve the tenacity of the building template. On the other hand, common chopped fiber is replaced by a reinforced fiber net which serves as a reinforcing body of the building template, the rigidity of the plastic building template is improved accordingly, the reinforcing fiber net is embedded into a single plastic plate to be fixed with the plastic plate rather than be fixed with the plastic plate through splicing and other methods, so that the two sides of the reinforcing fiber net are made of the same material, and the problem that boundary is separated easily due to the fact that the reinforcing fiber net is fixed through a traditional splicing method is avoided. According to the high-strength and high-tenacity plastic building template, three aspects including tenacity improvement, rigidity improvement and boundary separation prevention are taken into consideration, and therefore the service life of the plastic building template is comprehensively prolonged. In addition, recycled plastics and/or rubber is used as the main raw material of the plastic building template, so that production cost is reduced.

The invention discloses a non-transfer organic silicon modified acrylate parting agent. The non-transfer organic silicon modified acrylate parting agent is prepared from the following raw materials of 89 to 99.8wt% of organic silicon modified acrylate, 0.1 to 1wt% of interface modifier, and 0.1 to 10wt% of dispersion stabilizer. The non-transfer organic silicon modified acrylate parting agent has the advantages that by introducing an organic silicon molecular chain into a acrylate molecular chain through a chemical bonding manner, and adding the interface modifier and the dispersion stabilizer, the acrylate parting agent without silicon transfer in the use process is obtained; the acrylate parting agent can be used as a parting coating for the back side of a substrate of an electronic protective film, and be widely applied into the field of protective films; in the use process, the silicon-containing parting agent is not transferred to the adhesive layer side of the protective film; the adhesion force of pressure-sensitive adhesive in the 6 month or above protective film is maintained 99% or above.

The invention discloses corrosion-resistant and weatherproof paint specially used for a pop can. Raw materials of the corrosion-resistant and weatherproof paint specially used for the pop can are as follows in parts by weight: 100 parts of acrylic emulsion, 20-35 parts of epoxy resin emulsion, 2-10 parts of waterborne polyaniline solution, 3-8 parts of terpene resin, 10-25 parts of titanium dioxide, 10-20 parts of talcum powder, 15-20 parts of light calcium carbonate, 2-8 parts of precipitated barium sulphate, 2-10 parts of mica powder, 3-15 parts of zinc oxide, 2-10 parts of nanosilicon dioxide, 10-25 parts of modified graphene oxide, 1-5 parts of zinc phosphate, 3-10 parts of iron oxide red, 1-2 parts of a dispersing agent, 0.5-1.5 parts of a thickening agent, 3-10 parts of a coalescing agent, 0.5-2 parts of 2-amino-2-methyl-1-propanol and 20-50 parts of water. The corrosion-resistant and weatherproof paint specially used for the pop can, disclosed by the invention, has good weatherproof property and excellent corrosion resistance and also has certain antibacterial property.

The invention discloses an oil fume resistant polycarbonate material, a preparation method and application thereof. The oil fume resistant polycarbonate material is prepared from the following components by mass: 70-90% of polycarbonate; 5-20% of modified nitrile butadiene rubber; 4-15% of a flame retardant; 0.3-3% of an antioxidant, and 0.4%-3% of a lubricating agent. The modified nitrile butadiene rubber is prepared from nitrile butadiene rubber and an ethylene-methyl acrylate copolymer in a mass ratio of 2-5:1. The material has excellent impact toughness, good flame retardant properties and electrical insulation properties, also has well improved oil fume cracking resistance, and is very suitable for preparation of kitchen wall switches and other products. The preparation method of the oil fume resistant polycarbonate material disclosed in the invention adopts existing equipment, the preparation is simple and is easy for industrial production, thus having broad application prospects.

The invention discloses an anti-aging and wear-resistant rubber material for a tire. The anti-aging and wear-resistant rubber material for the tire is prepared from, by weight, 15-35 parts of natural rubber, 25-35 parts of 320 type chloroprene rubber, 25-35 parts of neoprene, 20-50 parts of modified kaolinite, 0.5-1.5 parts of 616 antiager, 0.2-0.8 part of phosphite, 0.5-1.2 parts of tetramethyl thiuram disulfide, 0.5-1.5 parts of zinc oxide, 1-3 parts of magnesium oxide, 5-15 parts of pumice, 10-18 parts of zinc borate, 1-2 parts of aluminum borate whiskers, 12-18 parts of sodium antimonite, 5-15 parts of aluminum phosphate, 10-20 parts of carbon black, 0.2-0.8 part of polyepoxy soybean oil, 0.1-0.9 part of hydroxyl silicone oil, 1-2 parts of white oil, 1-3 parts of pine tar, 0.2-0.8 part of fatty acid, 0.5-1.5 part of stearic acid and 1-2 parts of 3-aminopropyltrimethoxysilane. The anti-aging and wear-resistant rubber material for the tire is good in wear-resistant and anti-tear performance and excellent in anti-aging performance.

The invention relates to the technical field of biomaterials, particularly to a bio-based nylon composite PLA material and a preparation method thereof, wherein the raw materials comprise, by weight,10-20 parts of a filler, 40-60 parts of polylactic acid, 1-5 parts of an antioxidant1010, 0.5-2 parts of a plasticizer, 4-8 parts of a compatibilizer, 4-8 parts of a coupling agent, 40-60 parts of a bio-based nylon, 1-5 parts of a polyolefin elastomer, 1-3 parts of modified glass fiber, and 0.01-1 part of glycidyl methacrylate. According to the present invention, the mechanical strength and the size stability of the PLA material are improved by filling the modified glass fiber with the bio-based nylon and the polylactic acid while the bio-based nylon and polylactic acid compounding process isfilled and grafted by using the filler and the high-toughness grafting agent glycidyl methacrylate, such that the bio-based nylon composite PLA material meets the performance requirements of engineering plastics and has good degradability.

The invention discloses a polypropylene composite material with characteristics of low odor, scratch resistance and low gloss, and a preparation method thereof, wherein the polypropylene composite material comprises 50-90 parts of a PP resin, 5-25 parts of a HDPE resin, 0.5-3 parts of a scratch-resistant agent, 0.2-5 parts of an adsorbent, and 2-40 parts of inorganic powder. According to the present invention, the blending compatibility is increased by adding the HDPE, the co-action is achieved with the scratch-resistant agent so as to improve the scratch resistance, the low odor of the composite material is further improved by adding the water injection/drying process and the adsorbent, and the gloss of the composite material is reduced by filling with the inorganic powder, such that thepolypropylene composite material having the balance among the low odor, the scratch resistance and the low gloss can be achieved under the premise of the substantially unchanged mechanical properties;the composite material has the excellent comprehensive performance, and can be suitable for the production of vehicle interior decoration parts; and the preparation method has characteristics of simple and easily-controlled preparation process, low production cost and stable product performance, and is suitable for industrial scale production.

The invention provides a heparan modified polyurethane/polyethersulfone blended hollow fiber membrane and a preparation method thereof. According to the heparan modified polyurethane/polyethersulfoneblended hollow fiber membrane, heparan modified polyurethane is sulfonated dihydroxypropyl chitosan modified polyurethane; the preparation method comprises the following steps: adding 1 to 10 percentof the sulfonated dihydroxypropyl chitosan modified polyurethane, 8 to 20 percent of polyethersulfone and 80 to 90 percent of a solvent into a dissolving kettle; controlling the temperature to be 70 to 90 DEG C and stirring for 2 to 20 h; after the components are completely dissolved, standing for 10 to 20 h to finish de-foaming, so as to obtain a membrane solution; then preparing the sulfonated dihydroxypropyl chitosan modified polyurethane/polyethersulfone blended hollow fiber membrane by adopting a dry-wet process spinning method. The blended hollow fiber membrane provided by the inventionhas good anticoagulation performance and physicochemical stability; a preparation technology is simple and conditions are moderate and controllable.

The invention relates to a compatilizer for improving blending compatibility of ethylene propylene diene monomer with silicone rubber. The compatilizer comprises 100 parts of liquid ethylene propylenediene monomer, 30-50 parts of hydrogen-containing silicone oil and 0.5-1 part of a catalyst. The preparation method comprises the following steps: firstly, dissolving the liquid ethylene propylene diene monomer, then adding the hydrogen-containing silicone oil and the catalyst, and carrying out a hydrosilylation reaction to graft the hydrogen-containing silicone oil onto the liquid ethylene propylene diene monomer to prepare the compatilizer. The novel compatilizer can be enriched at the interface of two phases in a blending process of ethylene propylene diene monomer with methyl vinyl silicone rubber, and surface tension of the two phases is reduced through physical or chemical effects generated by the compatilizer with a two-phase polymer component, so that an effect of improving compatibility of the two components is achieved, and performance of blended rubber is improved.

A polypropylene graft copolymer, its production and use are disclosed. In the molecular formula, n is integer between 50-100000, k is integer between 10-5000, L is integer between 4-10, R is alkyl, R1 is H or methyl, R2 is phenyl, p-methyl, -OCOCH3, -CONH2, -CN or -COOR3, and R3 is alkyl. It can adjust graft density and length, and maintain polypropylene excellent performances and blending compatibility. It can be used for blending compatilizer.

The invention relates to a production method for a high-toughness building template. According to the production method, the building template is prepared from recycled regenerated plastic and/or rubber serving as a main raw material, so that the production cost of the building template is lowered; in the production method, a mixture of rubber and an auxiliary is blended and granulated to obtain a rubber modified material, and the rubber modified material and plastic particles are fused and blended, so that the auxiliary, in spite of a liquid state or a solid state, can be effectively mixed with the rubber during blending and can enter the rubber; therefore, a network structure in the rubber can be released, and the processing flowability, the compatibility and the dispersion uniformity of the rubber and the plastic particles during fusing and blending are improved, and the toughness of the building template is also enhanced; furthermore, the rubber modified material is of a large particle shape, so that the environment friendliness of the technology is high. The production method has another advantage that after being rejected, the building template can be recycled to serve as a raw material for processing a new building template, so that resource recycling is realized.

The invention discloses a processing method of a self-lubrication wear-proof unsaturated polyester molding compound and relates to the technical field of thermosetting molding compounds. The processing method comprises the following steps of: (1) batching, (2) mixing and (3) granulation. The method prepares the self-lubrication wear-proof unsaturated polyester molding compound by taking solid unsaturated polyester resin as a main material, kaoline as filling and C5 hydrogenated petroleum resin and chlorinated polyethylene rubber as forming assistants, a lubricant, a releasing agent, a cross-linking agent, an initiator, a pigment, a polymerization inhibitor as functional assistants, can significantly reduce a wear extent and therefore prolongs a service life when the molding compound is applied to a moving component of an electric appliance product.