41results about How to "Fast plasticizing speed" patented technology

The invention discloses a method for preparing a multifunctional rubber assistant by recycling alkali-weight-reduction processing discharged liquor. The method comprises the following steps: sequentially passing alkali-weight-reduction wastewater through a laminar-flow precipitation tank and an activated carbon filter to enter an acid precipitation tank, adding sulfuric acid or hydrochloric acid while stirring, and precipitating terephthalic acid when the wastewater becomes acidic; and adding the terephthalic acid and stearic acid into a reaction kettle, adding water and sodium hydroxide to dissolve the terephthalic acid and stearic acid into a sodium solution, adding a zinc chloride solution to crystallize and precipitate a zinc terephthalate-zinc stearate crystal mixture, centrifuging, filtering, washing and drying to obtain the multifunctional rubber assistant finished product. By using the alkali-weight-reduction processing wastewater as the raw material, the method reduces the wastewater discharge and implements resource reutilization on the premise of preparing the novel rubber assistant, and thus, has obvious economic benefit and social benefit.

The invention discloses a multifunctional flow guider. A driving shaft driven by a speed reducing motor is arranged on a head cover of a desulfuration tank, a flow guider is arranged on the driving shaft which extends into the desulfuration tank, the flow guider has the structure that the upper part of the driving shaft is provided with symmetrical horizontal scratch boards, the top surfaces of the horizontal scratch boards are matched with the inner wall of the head cover of the desulfuration tank, the outer ends of the horizontal scratch boards are respectively and fixedly connected with a vertical scratch board, the outer side faces of the vertical scratch boards are matched with the inner wall of a cylinder of the desulfuration tank, the inner side of one vertical scratch board is connected with a turbulent flow board having an inclined angle with the vertical plane, the middle of the driving shaft is provided with symmetrical horizontal support arms, one straight support arm is connected with the vertical scratch boards, the other support arm is connected with the turbulent flow board, and the symmetrical support arms arranged at the lower part of the driving shaft are respectively connected with the vertical scratch boards. After the multifunctional flow guider is used, waster rubber powder in the desulfuration tank can quickly rotate and can be rubbed with one another to generate heat under the action of the flow guider, and the track of the rotating rubber powder can be changed in a flow guide way, so that the rubber powder can be evenly heated, the plastification speed can be increased, the multifunctional flow guider is low in energy consumption, and the production cost can be reduced.

The invention relates to the technical field of PVC modified materials and particularly relates to an insulating and environment-friendly PVC modified material and a preparation method thereof. The insulating and environment-friendly PVC modified material contains the following raw materials: 80-120 parts of PVC resin, 40-60 parts of bulking agent, 40-60 parts of plasticizer, 10-15 parts of insulation modifier, 3-7 parts of heat stabilizer and 0.5-1.5 parts of lubricant, wherein the plasticizer is a mixture prepared from dioctyl terephthalate and tri-n-butyl citrate which are in the weight ratio of (5-7): 1; the insulation modifier is a mixture prepared from kaolin, titanium white and glass micro-beads which are in the weight ratio of (2-4): (1.5-2.5): 1, and the particle size of the glass micro-beads is smaller than 20 microns. According to the modified material prepared by the preparation method, all properties exceed the national standards, the insulating property is good, the resistivity reaches up to 5.1*10<14> omega, and the modified material is environment-friendly; the preparation method disclosed by the invention is simple in process, convenient in operation and control, stable in quality and high in production efficiency and can be applied to large-scale industrial production.

The invention relates to an impact-resistant modified polyvinyl chloride tubular product for supplying water. The tubular product comprises the following components in parts by weight: 100 parts of polyvinyl chloride, 5-10 parts of an efficient impact-resistance modifier based on an acrylic ester polymer, 0.5-1 part of an organic tin stabilizer, 1-1.5 parts of light calcium carbonate, 0-0.5 part of active calcium, 0-0.1 part of a toughening agent, 3 parts of chlorinated polyethylene, 0.08 part of oxidized paraffin, 0.5-0.8 part of a fluorescent whitening agent, 0.3 part of polyethylene wax, 0.5-1 part of organic wax, 0-0.3 part of a modifier, 0-0.25 part of a ground material and 0.2 part of carbon black. The impact-resistant modified polyvinyl chloride tubular product for supplying water provided by the invention has high strength, high toughness and cracking resistance, can be applied in various fields, and has a wide popularization range.