248results about How to "High plasticizing efficiency" patented technology

The invention discloses a plasticizer and a preparation method, in particular an environment-friendly composite plasticizer which is based on a diethylene glycol dibenzoate type plasticizer and di(2-ethylhexyl) terephthalate and can comprise epoxy compounds, adipate compounds, dicaprate compounds and trimellitate compounds. The environment-friendly composite plasticizer can be used as a main plasticizer of polyvinyl chloride resin and other resins. The invention also relates to a preparation method of the environment-friendly composite plasticizer and ingredients thereof, namely the diethylene glycol dibenzoate type plasticizer and the di(2-ethylhexyl) terephthalate. The environment-friendly composite plasticizer has the characteristics of high intermiscibility, plasticizing efficiency, cold resistance, heat resistance, pollution resistance, extraction resistance, migration, electric insulation, light and heat stability and the like, and is widely applied in plasticizing industry.

The invention provides environment-friendly soft polyvinyl chloride granules. The environment-friendly soft polyvinyl chloride granules are prepared from the following raw materials: 100 parts of polyvinyl chloride resin, 30-130 parts of ester plasticizer, 5-10 parts of epoxidized soybean oil, 0.1-2 parts of calcium / zinc compound stabilizer, 0.1-1 part of lubricating agent and 0.01-0.5 part of halloysite nanotube. The soft polyvinyl chloride granules have high plasticizing efficiency, superior toughness, extremely low precipitation rate, and safety protection of the environment and body health are facilitated.

The invention relates to the field of recycling of waste plastics and provides a film crushing plasticator. The film crushing plasticator comprises a machine frame and further comprises a crushing, stirring and preplasticizing device, a plasticizing and toughening device and an exhaust air filter device, wherein the crushing, stirring and preplasticizing device is provided with a feeding hopper and a discharging outlet; the plasticizing and toughening device comprises a barrel provided with a barrel heating device and connected with the machine frame, a middle spiral push rod connected with the barrel in a pivoted mode, a plurality of outer spiral push rods distributed in the circumferential direction of the middle spiral push rod and connected with the barrel in a pivoted mode, and a spiral push rod drive device; and the barrel is provided with a plasticizing inlet located at the rear portion of the side body of the barrel and communicating with the discharging outlet, a plasticizing outlet located in the front end of the barrel, and an exhaust hole communicating with an inlet of the exhaust air filter device. The film crushing plasticator is good in effect of mixing, extruding and rubbing of plasticized raw materials in the plasticizing process, gas is exhausted easily, and prepared plastic renewable raw materials are good in toughness.

The invention discloses a method for preparing plant fiber-based foamed thermoplastic masterbatch. The method comprises the following specific steps: (A) crushing plant fibers, adding an alkali liquor swelling agent, soaking the processed plant fibers, and drying the soaked plant fibers after carrying out ultrasonic reaction; (B) adding a modified plasticizer, carrying out heating reaction for 30-90min, carrying out filtration after cooling, cleaning filter residues, and drying the cleaned filter residues; and (C) mixing plasticized plant fiber powder, a plastic matrix and auxiliaries, adding the mixture in an extruder, carrying out squeezing granulation to obtain the plant fiber-based foamed thermoplastic masterbatch. By the adoption of the invention, the glass transition temperature of natural plant fibers is optimized, the hot melting flowing property of the natural plant fibers is improved after being modified by the composite modified plasticizer, the wood-plastic plasticizing torsional force is effectively reduced, the energy consumption is greatly reduced, the cost is reduced, meanwhile, the mechanical property of the foamed thermoplastic masterbatch product can be improved by more than 25%, the impact resistance and the ductility are greatly improved, the material density is reduced, and thus the method has relatively high promotion and application values.

The present invention provides an ester plasticizer, particularly, a plasticizer for a polyvinyl chloride (PVC) resin, and a plastic comprising the plasticizer. More concretely, the present invention provides a plasticizer prepared by the esterification reaction of 1,4 - butanediol and organic acid. When a polyvinyl chloride resin composition is manufactured using the ester plasticizer of the present invention, there are advantages in that a product having excellent plasticizing efficiency can be obtained, and in that the physical properties such as tensile strength and the like of the product are improved.

The present invention relates to a novel ester-based plasticizer, and more specifically to one which is produced by means of an esterification reaction between a polyhydric alcohol, alkylene oxide and a fatty-acid or aromatic carboxylic acid. When the plasticizer according to the present invention is used to produce a poly(vinyl chloride) resin, there are advantageous effects in that it is possible to obtain products with outstanding plasticization efficiency, and physical properties such as hardness and tensile strength are also improved.

The present invention relates to a plasticizer composition, a resin composition, and a method of preparing the plasticizer composition. A plasticizer composition capable of improving properties such as tensile strength, migration resistance, volatile loss and the like, which are required when used as a plasticizer of a resin composition, by improving poor properties occurring due to structural limitations, and a resin composition including the same may be provided.

The invention discloses environment-friendly low-temperature curing PVC plastisol and a preparation method thereof. The environment-friendly low-temperature curing PVC plastisol uses PVC paste resin, chloride vinyl acetate copolymerized paste resin, a plasticizer, a heat stabilizer, an adhesion promoter, BPU-Si, filler, a thixotropic agent, CaO, a viscosity reducer and the like as raw materials. The tensile strength of the prepared PVC plastisol can be up to 6-8 MPa, and the elongation at break can be up to 210%-270%. The adopted plasticizer is the novel environment-friendly plasticizer and has the advantages of being biodegradable, low in volatility, high in plastifying effect and the like. Under the synergistic effect of end-capped polyurethane and an adhesion promoter, the plastifying temperature (120-130 DEG C) of the plastisol can be effectively reduced, and the mechanical properties, elasticity and adhesion of the PVC plastisol are remarkably improved.

The invention discloses a preparation method of adipate epoxy plasticizer, which comprises the following steps: (1) extracting fatty acid in vegetable oil leftovers; (2) performing reduction reaction on the obtained long-chain fatty acid under the catalytic reduction action of lithium aluminum hydride, thus obtaining long-chain fatty alcohol; (3) mixing the long-chain fatty alcohol and adipic acid, and adding a reverse micelle nano aluminum oxide catalyst, thus obtaining a system solution containing adipic acid di(long-chain fatty ester); (4) performing epoxy reaction, thus obtaining a finished product solution; and (5) introducing chlorine gas into the epoxy finished product solution, simultaneously performing ultraviolet irradiation until the chlorination reaction is completed, and then treating to obtain the modified epoxy plasticizer. The invention also discloses the epoxy plasticizer prepared by the method. According to the invention, the long-chain alcohol group is introduced into the molecular structure of the adipic acid, so that the plasticizing efficiency of the product is greatly improved, the raw material cost is low, and the comprehensive recovery of the vegetable oil leftovers is realized; and meanwhile, the epoxy group in the plasticizer enhances the heat resistance, stability and compatibility of the product.