9results about How to "Fully plasticized" patented technology

The invention discloses degradable coated paper and a preparation method thereof, and belongs to the field of high polymer materials. Aiming at the problem of single function of the existing coated paper, the invention provides the degradable coated paper, the degradable coated paper comprises backing paper and a coated layer, and the coated layer comprises the following components in parts by weight: 50-80 parts of polylactic acid and 10-25 parts of poly (ethylene terephthalate) succinate; the plastic is prepared from the following components in parts by weight: 1-5 parts of biodegradable chitosan, 10-20 parts of modified talcum powder, 0.3-1.0 part of a plasticizer, 0.2-1.0 part of a lubricant, 0.2-0.5 part of an antioxidant and 0.2-0.5 part of a compatilizer. The antibacterial purpose is achieved by selecting the degradable chitosan, and meanwhile the mechanical performance of the coated paper is not affected; the purposes of heat preservation, cost reduction and efficiency improvement are achieved through the modified talcum powder, so that the finally prepared degradable coated paper has multiple functions of degradability, heat preservation and antibiosis; meanwhile, all the used raw materials are biodegradable, so that the environment-friendly significance is higher. The operation is simple, the convenience and the efficiency are higher, and the use prospect is higher.

The invention provides a polyimide profile and a preparation method thereof, and the preparation method comprises the following steps: adding polyimide resin powder into a mold of a molding press, and carrying out heat preservation on the polyimide resin powder at a preheating temperature; the preheating temperature is 200-230 DEG C; the upper pressing plate of the mold is put into the mold, pressure is applied to the polyimide resin powder in stages, the pressure is maintained for 3-5 s after pressure is applied in each stage, the pressure applied in stages is adjusted from low to high, and the pressure applying process in stages is repeated for multiple times; the polyimide resin powder is subjected to pressure maintaining under the mold pressing pressure, meanwhile, the mold is heated to the mold pressing temperature, and heat preservation and pressure maintaining treatment is conducted on the polyimide resin powder under the mold pressing temperature and the mold pressing pressure; after the heat and pressure preservation treatment is completed, cooling and demolding are conducted, and the polyimide profile is obtained. The preheating temperature of the polyimide resin powder in the mold press mold is controlled, and the polyimide resin powder in the mold is subjected to staged pressing operation before the mold is heated to the mold pressing temperature, so that polyimide resin is completely plasticized, exhaust is thorough, and the prepared polyimide profile is uniform in appearance color and high in yield. The impact strength is 280 kJ / m < 2 > or above, and the performance is better.

The invention discloses an oil-resistant cold-resistant flame-retardant polyvinyl chloride material and a preparation method thereof. The polyvinyl chloride material is prepared from the following raw materials in parts by weight: 100 parts of PVC resin, 40-60 parts of a plasticizer, 30-50 parts of a flame retardant, 15-25 parts of a cold-resistant agent, 10-20 parts of an oil-resistant agent, 5-10 parts of a heat stabilizer and 2-5 parts of a lubricant. Wherein the flame retardant is a composite flame retardant composed of aluminum hydroxide, magnesium hydroxide and antimony trioxide, the cold-resistant agent is an ethylene terpolymer, and the oil-resistant agent is a polar copolymer of acrylonitrile and butadiene. The material is excellent in comprehensive performance, the low-temperature impact performance can pass minus 40 DEG C, after an oil resistance test, the mechanical property loss is extremely small, the oxygen index is maintained to be about 30%, the stable mechanical property and thermal stability are achieved, collaborative optimization of oil resistance, cold resistance and flame retardance is achieved, and the service life of the material is prolonged. The cable is suitable for cable preparation under complex working conditions such as automobile engine cabins, industrial equipment in extremely cold areas and petrochemical engineering, the preparation process is high in controllability, and industrial production is easy.

The utility model provides a hose gluing machine head for pipeline repair, which comprises a machine head body, a runner and a core mold are sequentially arranged in the machine head body, the front part of the outer wall of the runner is of a hanger type structure along the axial direction, and the rear part of the outer wall of the runner is of a spiral structure. According to the hose gluing machine head for pipeline repair, the flow channel of the machine head adopts the combination of an axial clothes hanger type and a spiral type, materials are quickly melted and fully plasticized in the flow channel, glue is uniformly coated, the product quality is good, the size of the machine head is small, the matched heating power is small, and the energy consumption is low.

The present invention discloses a stable and sealed pet product injection mold and an injection molding process. The present invention relates to the field of injection mold technology, including a template, the template is fixedly connected to a guide column, a through slot is opened in the middle of the top of the template, a fixing ring is fixedly connected to the inner wall of the through slot, a card block is fixedly connected to the inner wall of the through slot, the card block is hook-shaped, there are two cards, two of the cards are symmetrically arranged inside the through slot, a positioning ring is fixedly connected to the bottom of the module, and a protrusion is provided inside the positioning ring. This stable and sealed pet product injection mold and injection molding process, through the card connection between the card slot and the card block, makes the lower mold and the upper mold fit tightly and seal, avoids the existence of a gap when the mold is closed, resulting in quality problems of the product, and requires additional processing and inspection, thereby extending the injection molding cycle, which will reduce production efficiency and increase production costs.

The utility model discloses a kind of feeding equipment for environmental protection plastic woven bag production, it is related to feeding equipment technical field;And the utility model includes feeding pipe, the top surface of feeding pipe is fixed with fixed box, L-shaped plate is slidably arranged in the fixed box, the side of L-shaped plate is fixed with frame, limiting roller is rotatably arranged in the frame, filtering frame is slidably arranged in the fixed box, limiting roller can be rolled in filtering frame, the top surface of fixed box is fixed with fixed frame, the side of fixed frame is fixed with second motor, the output of second motor is fixed with rotating shaft, by the mutual movement of two L-shaped plates, in turn make frame drive limiting roller roll on the top surface of filtering frame, in turn can the caked raw materials be scattered, then the caked raw materials can fall from filtering frame, avoid the caked raw materials in drawing-in machine difficultly fully plasticization, improve the uniformity of drawing-in, no fracture phenomenon appears.

The application discloses a glass fiber reinforced polypropylene material, a preparation method and application, and belongs to the technical field of polypropylene engineering plastics. The material contains, in terms of weight parts, 40-70 parts of polypropylene resin, 20-50 parts of alkali-free continuous long glass fiber, and compounded antioxidants, compatibilizers, scratch-resistant agents, heat-resistant agents and light stabilizers. The alkali-free continuous long glass fiber has a diameter of 10-14 microns, a breaking strength of greater than or equal to 3000 MPa, and a linear density of 2400 tex or 3600 tex. The material has high strength, aging resistance and low-temperature impact resistance, and is suitable for automobile structural parts.

The invention discloses a preparation method of anti-static ABS (acrylonitrile-butadiene-styrene) modified plastics, and belongs to the technical field of preparation of ABS modified plastics. The method comprises the following steps: firstly, preparing ABS resin, nano-structure polyaniline, potassium iodide, maleic anhydride grafted ABS, polyethylene glycol fatty acid ester, dioctyl phthalate and zinc stearate in a specific proportion in the aspect of raw materials; nano-structure polyaniline is subjected to special treatment and forms a composite core on part of ABS resin through in-situ polymerization, and other raw materials are preliminarily mixed. Then the materials are mixed in a double-screw extruder, parameters such as the length-diameter ratio, the rotating speed, the temperature and the feeding speed of screws are accurately set, and a screw cylinder and the screws are specially designed; the melt is formed through a mold, a product is subjected to annealing treatment, and annealing parameters comprise fine control of temperature, time, air velocity and the like. The modified plastic prepared by the method has excellent anti-static performance, keeps good mechanical performance, good low-temperature impact performance and stable durability, and can meet the requirements of various fields on anti-static materials.

This invention discloses a continuous stirring friction deposition additive manufacturing apparatus, belonging to the field of metal additive manufacturing technology. It includes: a housing; a spindle assembly with an axial channel for conveying additive rods and driven to rotate by a drive mechanism; and a continuous feeding mechanism located on the feed side of the spindle assembly, used to continuously feed the additive rods into the axial channel of the spindle assembly and apply an axial thrust to the additive rods, causing them to move towards the working end of the spindle assembly. It has the advantages of achieving continuous and stable rod supply, improving the automation level of feeding, reducing jamming risks, and enhancing deposition forming quality and process stability.