112results about How to "Thermoplastic" patented technology

The invention discloses a fully-degradable mulching film capable of applying fertilizer. The fully-degradable mulching film capable of applying the fertilizer is characterized by comprising the following components in percentage by mass: 30 to 60 percent of poly(butylene adipate-co-terephthalate) (PBAT), 10 to 30 percent of polylactic acid, 10 to 30 percent of starch, 5 to 10 percent of plasticizer, 0 to 2 percent of chain extender, 5 to 20 percent of chemical fertilizer microcapsule, 5 to 10 percent of filler and 0 to 5 percent of fully-degradable color master batch. The space region is covered by the fully-degradable mulching film to ensure that the temperature and the humidity meet the requirement, polyvinyl alcohol on the surfaces of the fertilizer microcapsules is dissolved to ensure that the surfaces of the fertilizer microcapsules have porous sustained-release structures, and the fertilizer is slowly separated out under the humid conditions for drop irrigation of crops, so that the function of applying the fertilizer to the crops is exerted. After the crops are harvested completely, the fully-degradable mulching film is not needed to be recovered.

The invention discloses a method for preparing an environment-friendly modified carboxymethylcellulose thermoplastic material. The method is characterized by comprising the following steps of: adding 1-50 parts by weight of carboxymethyl cellulose into 150-500 parts by weight of solvent water, swelling for 1-4 h at 30-60 DEG C, then adding 0.1-10 parts by weight of initiator, controlling the temperature at 40-85 DEG C, carrying out initiation reaction for 0.1-2 h, then adding 20-300 parts by weight of grafting monomer, reacting for 0.5-8 h at 40-85 DEG C; cooling the reacted materials, adding 150-300 parts by weight of acetone, stirring, standing for 5-10 h, filtering, washing a solid with water and drying the solid to obtain the modified carboxymethylcellulose thermoplastic material. The product can be processed and molded by using traditional extrusion molding, injection molding and blow molding methods. The thermoplastic material product is widely applied to the fields of petroleum drilling, mining engineering, textile industry, textile industry, coating material industry, daily chemical products, and the like.

The invention discloses a SEBS-based eco-friendly TPO automobile internal decorating material. A TPO surface layer comprises 50-80 parts of SEBS, 10-20 parts of polypropylene, 10-20 parts of tackifying resin, 5-20 parts of homo-polypropylene, 1-5 parts of an auxiliary agent, 0-15 parts an inorganic filling material and 2-5 parts of color master batches. A sponge layer comprises 35-60 parts of polypropylene, 40-55 parts of a toughening material, 15-25 parts of rubber and 20-30 parts of a foaming agent. SEBS is a linear three-block copolymer composed of polystyrene as a tail end segment and an ethene-butylene copolymer prepared through polybutadiene hydrogenation as a middle elastic block, has thermoplasticity, can be re-processed, is environmentally friendly, does not contain nonsaturated double bonds, has excellent aging resistance, contains polybutadiene, has a good handle and appropriate hardness, does not contain rubber and has a small smell and low VOC content.

The invention discloses a polymer repairing mortar. The polymer repairing mortar comprises 400-500 parts of cement, 500-600 parts of quartz sand, 1-5 parts of a high-molecular polymer, 5-15 parts of a polymer, 1-5 parts of silicon micropowder and 0.1-0.3 parts of wood fiber, wherein the high-molecular polymer is cellulose ether, and the polymer is re-dispersible latex powder. The purpose of the invention is to provide the polymer repairing mortar with the characteristic of long service life and no cracking, and a preparation method thereof.

The invention belongs to the technical field of composite materials and discloses a pultrusion production process for nylon-based fiber reinforced thermo plastics. The production process comprises the following steps of: dissolving a tackifier in a lactam monomer at the temperature of between 110 and 210DEG C in a dehydration kettle to obtain tackified slurry; adding a catalyst and a lubricating agent into the tackified slurry, performing vacuum dehydration at the temperature of between 110 and 190DEG C for 5 to 60 minutes, reducing temperature to 70-100DEG C, discharging the material into an activating tank, keeping the temperature of the activating tank between 70 and 100DEG C, and maintaining a stirring state; adding an activator into the activating tank through a metering pump to obtain activated slurry; arranging fibers by using a yarn guide screen board, impregnating the fibers by using the obtained activated slurry, making the impregnated fibers form bundles by using a pre-land plate, dragging into a curing and shaping mold for curing, feeding into a postcuring oven, and dragging and cutting to obtain a fiber reinforced thermo plastic product. The production process has the advantage of low cost.

The invention discloses a polydimethylsiloxane self-repairing elastomer based on a hydrazide bond and a preparation method thereof. The self-repairing elastomer is prepared from tetrahydrazide-functionalized polydimethylsiloxane and polyaldehyde through solution volatilization for film formation. The preparation method is simple; the elastomer can realize self-repairing under the catalysis of a small amount of external acid at room temperature or under simple heating conditions, and is fast in repairing speed and good in repair performance. In addition, through the introduction of the dynamichydrazide bond, the elastomer has thermoplastic performance and can be repeatedly formed by hot pressing, so the elastomer has good application prospects.

The invention belongs to the technical field of polymer composite materials, and discloses a high-thermal-conductivity remoldable liquid crystal elastomer composite material, and a preparation methodand application thereof. The high-thermal-conductivity reconfigurable liquid crystal elastomer composite material is obtained by mixing a sulfydryl-terminated liquid crystal prepolymer with a filler and then carrying out a cross-linking reaction A under the action of a sulfydryl cross-linking agent. The invention also provides a preparation method of the composite material. The preparation methodcomprises the following steps: firstly, preparing a sulfydryl-terminated liquid crystal prepolymer through photoinduced sulfydryl alkene click chemistry; then, the self-repairing liquid crystal elastomer containing the disulfide bond is obtained through an oxidation reaction between the prepolymer and the sulfydryl cross-linking agent; meanwhile, the heat-conducting filler and the like are introduced into the elastomer system in an in-situ polymerization mode, so that the composite material with good heat-conducting property and a recyclable remodeling function is obtained, and the composite material can be applied to the fields of aerospace, microelectronics and the like.

The invention discloses bio-based non-woven fabrics and a preparation method thereof. The non-woven fabrics is prepared from the following components in ratio by mass part: 30-60 parts of polypropylene, 25-55 parts of starch, 5-10 parts of plasticizer, 0.5-2 parts of polypropylene flow promoter, and 0.5-5 parts of filler. The preparation method is as follows: firstly, the polypropylene, the starch, the plasticizer, the polypropylene flow promoter and the filler are prepared into a required bio-based material as per specific production process, and then the bio-based material is processed for the second time by virtue of the spunbonding technology so as to form the bio-based non-woven fabrics. According to the method, the thermoplastic starch and polypropylene resin blending system are adopted, so that the thermoplastic starch can be dispersed in the polypropylene matrix uniformly; the plasticizer is used, so that the starch has the thermoplasticity, and the processibility of the starch and the compatibility of the starch with the polypropylene resin are improved; and moreover, the polypropylene flow promoter is used, so that the melt flow rate of the polypropylene/thermoplastic starch is improved and thus the spinnability of the material is improved.

The invention provides blended yarn of terylene, rabbit hair and silkworm pupa protein fiber. The blended yarn comprises the following components: 65-75 weight parts of terylene, 25-35 weight parts of rabbit hair and 10-20 weight parts of silkworm pupa protein fiber. The blended yarn provided by the invention enables the characteristics of terylene, rabbit hair and silkworm pupa protein fiber to be complementary and brings the advantages thereof into play.

The invention provides a terylene, bamboo fiber and milk protein fiber blended yarn which comprises the following components in parts by weight: 55-65 parts of terylene, 20-30 parts of bamboo fiber, and 10-20 parts of milk protein fiber. According to the blended yarn provided by the invention, the characteristics of the terylene, the bamboo fiber and the milk protein fiber are integrated, so as to play the advantages of the the terylene, the bamboo fiber and the milk protein fiber.

The invention provides blended yarn of terylene and glass fiber. The blended yarn comprises the following components: 80-90 weight parts of terylene and 10-20 weight parts of glass fiber. The blended yarn enables the characteristics of terylene and glass fiber to be complementary and brings the advantages thereof into play.

The invention relates to a rat-proof biobased garbage bag and a preparation method thereof. The rat-proof biobased garbage bag comprises the following components in parts by mass: 20-70 percent of polyethylene, 15-60 percent of starch, 5-10 percent of plasticizer, 5-10 percent of rat-proof repellent and 0.5-2 percent of color master batch. The preparation method of the degradable rat-proof biobased garbage bag comprises the following steps of: preparing a required biobased material from the polyethylene, the starch, the the plasticizer and the rat-proof repellent according to a specific production process; and matching the biobased material with the color master batch and carrying out secondary processing to obtain the degradable rat-proof biobased garbage bag. In the invention, the polyethylene is filled with the thermoplastic starch, so that the thermoplastic starch is uniformly dispersed in a polyethylene matrix; then a polyethylene modified material is disintegrated into fragments along with the biodegradation of the starch, so that the polyethylene modified material has a certain biodegradability; and due to the utilization of the plasticizer, the starch has thermoplasticity, so that the machinability of the starch and the compatibility of polyethylene matrix resin are improved.

The invention discloses a reversible cross-linking thermoplastic polyurethane elastomer and a preparation method thereof. The reversible cross-linking thermoplastic polyurethane elastomer comprises afuran-containing thermoplastic polyurethane (TPU) component (A) and a bismaleimide component (B); the furan-containing TPU component (A) is prepared from the following raw materials by weight: 25-46 parts by weight of an isocyanate (a1), 32-67 parts by weight of a polymer polyol (a2), 3.5-13 parts by weight of a small molecular dihydric alcohol (a3) and 0.3-4.5 parts by weight of furan (a4) containing two reactive groups for isocyanate radicals; and the bismaleimide component (B) is a mixture of a bismaleimide-containing compound (b1) and TPU (b2). According to the invention, through a reversible Diels-Alder reaction of functional components, the cross-linking effect among molecular chains is increased, the thermoplastic property of TPU is ensured, and the TPU is endowed with an excellentself-repairing ability.

A self-healing elastomer material and a preparing method thereof are disclosed. The method includes (1) reacting a first component containing a double bond and an ester group or carboxyl and a second component containing two or more amino groups at a temperature ranging from -15 DEG C to 50 DEG C for 1-72 h to obtain a prepolymer, removing an organic solvent, and then reacting the mixture at 25-200 DEG C for 1-12 h to obtain hyperbranched polyamidoamine (HPAMAM) having an amino molecular chain tail end; and (2) reacting the HPAMAM, polybasic acid and an alkaline metal compound which are metered at 100-200 DEG C for 1-24 h to obtain the self-healing elastomer material. The functional material synthesized based on the hyperbranched polyamidoamine is a hyperbranched material formed by self-assembling of hydrogen bonds and ionic bonds. The material has elasticity at room temperature. As reversible hydrogen bonds and ionic bonds exist, the material has a property that the material is self-healing at room temperature, is thermoplastic and can be repeatedly processed.

The invention discloses an anti-track uvioresistant ADSS optical cable jack material which comprises the following raw materials by weight part: 65-70 parts of high density polyethylene resins, 15-20 parts of ethylene acrylic copolymers, 9-10 parts of polyethylene grafting materials, 5-6 parts of polydimethylsiloxane, 15-20 parts of magnesium hydrate, 5.0-5.5 parts of carbon black master batches, 0.5-1.0 part of ultraviolet light absorber and 0.5-1.0 part of antioxidant. In a preparation process, the raw materials are put into a high-speed mixing machine and are uniformly mixed, and then are continuously extruded by a double-screw extruder for two times, and are cooled, cut into grains and dried, so that the jack material provided by the invention is acquired; the temperature of the double-screw extruder is at 160-230 DEG C. The anti-track uvioresistant ADSS optical cable jack material can serve as the jack material special for 220KV and above ADSS optical cable, can realize high-altitude suspending remote conveying, can resist corona and electric track, can resist ultraviolet irradiation, can bear the cold environment test under wind, rain, snow and frost environments and has excellent physical and mechanical properties.

The invention provides a terylene and carbon fiber blended yarn which comprises the following components in parts by weight: 85-90 parts of terylene, and 10-15 parts of carbon fiber. According to the blended yarn provided by the invention, the characteristics of the terylene and the carbon fiber are integrated, so as to play the advantages of the terylene and the carbon fiber.

The invention discloses an EMMA optical film for full fitting of an electronic screen and a preparation method thereof. The EMMA optical film for full fitting of the electronic screen is prepared by pre-mixing 100 parts by weight of an ethylene-methyl methacrylate copolymer (EMMA), 0.5-2.0 parts by weight of a photoinitiator, 0.3-1.5 parts by weight of a crosslinking agent, 0.3-1.2 parts by weightof a tackifier, 0.1-0.6 part by weight of an optical stabilizer, 0.1-1.1 parts by weight of a plasticizer and 0.2-1.0 part by weight of an antioxidant by a stirrer, putting the mixture into a single-screw tape-casting machine and tape-casting into the optical film according to set process parameters. The prepared EMMA optical film has the advantages of excellent bonding properties, high light transmittance, low water vapor transmittance and high weather resistance, also is in thermal plasticity before curing, easily fills segment gaps, adapts to the complex interface fitting, and can adapt torequirements of fitting of electronic screen protection layers, touch control layers and display layers with different sizes.

The invention discloses a preparation method of a metal feeling low-luster automotive interior material. The preparation method comprises 1, film material preparation: S101, uniformly mixing polypropylene, rubber, a solubiliser, an inorganic filler and color master batches, putting the uniform mixture into a double-roller open mill, carrying out open milling and preparing a film material with the thickness of 1-10mm and S102, carrying out corona treatment on the film material obtained by the step S101 so that surface polarity of the film subjected to corona treatment is improved, 2, preparing an aqueous polyurethane coating material and 3, coating the surface of the film material with a uniform polyurethane coating and carrying out drying to obtain the metal feeling low-luster automotive interior material. The preparation method solves the problem of plastic feeling of the existing injection molding plastic, is free of a later paint spraying process and satisfies requirements of low VOC, scratch resistance, low luster and high quality level provided by the automobile manufacturer on automotive interiors.