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single screw solid state pulverization

    SSSP - Torkelson Research Group

    Solid-state shear pulverization (SSSP) is a novel mechanical process that uses a modified twin-screw extruder with cooling zones to maintain the polymer in the solid state during processing. High shear and compressive forces result in repeated fragmentation and fusion of polymer in the solid state producing excellent mixing and dispersion of ...

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    Study on the solid-state shear pulverization process in ...

    Study on the solid-state shear pulverization process in single screw extruder illustrated by polyethylene as an example March 2004 Polimery -Warsaw- 49(3):202-207

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    Pulverization of rubber granulates using the solid-state ...

    Apr 30, 2001  A single screw extruder was used to pulverize rubber granulates at high shear and compression without using cryogenic fluid for cooling. This process, solid-state shear extrusion (SSSE), is based on the large compressive shear deformation of rubber granulates, which results in the storage of a large amount of strain energy and the formation of cracks.

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    Single-screw extruder for solid state shear extrusion ...

    A process and apparatus for single screw solid state shear extrusion pulverization of polymeric materials in which the polymeric materials are heated to a temperature suitable for forming a continuous thin film of said polymeric material, and then cooled, and normal and shear forces sufficient to form powder of the polymeric material are applied by a single cylindrical or conical mesh screw.

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    Investigation of Solid-State Shear Pulverization ...

    Solid-state shear pulverization (SSSP) is a continuous solid-state milling technique in which polymer/nanofiller blends are pulverized within a modified twin-screw extruder operating at sub-ambient temperatures The SSSP method can be tailored to specific applications by controlling the numerous processing parameters. Additionally, solid-state shear

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    WO1996036470A1 - Solid state shear extrusion pulverization ...

    An apparatus for solid state shear extrusion pulverization of a polymeric material comprising an elongated hollow barrel having a feed zone, a heating zone adjacent to the feed zone, a powder formation zone adjacent to the heating zone, and a powder discharge zone adjacent to the powder formation zone. At least one screw is housed within the elongated hollow barrel.

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    CA2102257C - Solid state shear extrusion pulverization ...

    A process and apparatus for pulverization of natural and synthetic polymeric material by applying normal and shear forces sufficient to form fine powder by oppositely rotating generally conical meshing screws. The fine powder may be fluidized to prevent agglomeration and assist in its discharge. The process is suitable for thermoplastic and thermosetting polymers and foams.

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    US5415354A - Solid state shear extrusion pulverization ...

    US5415354A US08/101,468 US10146893A US5415354A US 5415354 A US5415354 A US 5415354A US 10146893 A US10146893 A US 10146893A US 5415354 A US5415354 A US 5415354A Authority US United States Prior art keywords solid state powder state shear shear extrusion rubber Prior art date 1992-11-03 Legal status (The legal status is an assumption and

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    US5397065A - Solid state shear extrusion pulverization ...

    US5397065A US08/140,600 US14060093A US5397065A US 5397065 A US5397065 A US 5397065A US 14060093 A US14060093 A US 14060093A US 5397065 A US5397065 A US 5397065A Authority US United States Prior art keywords solid state polymeric powder pulverization shear extrusion Prior art date 1992-11-03 Legal status (The legal status is an

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    Pulverization of rubber granulates using the solid-state ...

    Apr 30, 2001  A single screw extruder was used to pulverize rubber granulates at high shear and compression without using cryogenic fluid for cooling. This process, solid-state shear extrusion (SSSE), is based on the large compressive shear deformation of rubber granulates, which results in the storage of a large amount of strain energy and the formation of cracks.

    More

    Study on the solid-state shear pulverization process in ...

    Study on the solid-state shear pulverization process in single screw extruder illustrated by polyethylene as an example March 2004 Polimery -Warsaw- 49(3):202-207

    More

    Processing-structure-property relationships in solid-state ...

    Solid-state shear pulverization (SSSP) is a unique processing technique for mechanochemical modification of polymers, compatibilization of polymer blends, and exfoliation and dispersion of fillers in polymer nanocomposites. ... Using neat, single component polypropylene (PP) as the model material, we varied machine type, screw design, and feed ...

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    Pulverization of rubber under high compression and shear ...

    May 24, 1999  This information was used as a guide to obtain optimum operating conditions and design parameters for optimum design of the solid state shear extrusion (SSSE) pulverization process [H. Arastoopour, Single Screw Extruder for Solid State Shear Extrusion Pulverization, U.S. Patent No. 8,101,468 (1998)].

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    Pulverization of rubber using modified Solid State Shear ...

    A twin screw conical counter-rotating extruder, a mixer head with roller blades and a single screw extruder attached to a C.W. Brabender PL2000 Plasti-Corder were utilized as pulverization ...

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    Some Aspects of a Plastics Pulverization Technology by ...

    Mar 01, 2000  A single screw extruder was used to study the effect of the metering screw section geometry i.e., the shearing on the pulverization. The extruder exhibited a L/D ratio of 25:1 and 18 mm screw diameter. Three screws were studied having a channel depth in the feed section of 3.65 mm each and channel depth in the metering section of 0.73, 1.2 and ...

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    Analysis of Rubber Particles Produced by the Solid State ...

    Recently, extruder-type processes such as twin-screw extruder 7 and solid-state shear pulverization 8, 9 have been used. However, none of the methods is

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    Hamid Arastoopour Illinois Institute of Technology

    Hamid Arastoopour is Henry R. Linden Professor of Engineering and Director of Wanger Institute for Sustainable Energy Research (WISER) at Illinois Institute of Technology (IIT) in Chicago, Illinois. Since 1985, he has been a member of the chemical engineering faculty at IIT, where he served as chairman of the department from 1989 to 2003, and Dean of the Armour

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    Processing-structure-property relationships in solid-state ...

    Jul 01, 2012  Furthermore [E.sub.p], has been measured for simple pulverization of rubher granules with a single screw solid-state shear extruder (46). Although the relevant [E.sub.p], equations vary slightly among these techniques with different processing parameters, the two common key quantities are the power of the motor and the throughput.

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    Well-mixed blends of HDPE and ultrahigh molecular weight ...

    via solid-state shear pulverization Mirian F. Diop a, Wesley R. Burghardt a, b, John M. Torkelson a, b, * a Dept. of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA b Dept. of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA article info Article history: Received 20 May 2014

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    Reconstituted polymeric materials derived from post ...

    Single-screw extruder for solid state shear extrusion pulverization and method: 1998-01-06: Arastoopour: 5397065: Solid state shear extrusion pulverization: 1995-03-14: Shutov et al. 5088914: Double flighted extrusion screw: 1992-02-18: Brambilla: 5073320: Preparation of thermoplastics containing ceramic powders as fillers: 1991-12-17: Sterzel ...

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    Achievement of quasi-nanostructured polymer blends by ...

    T1 - Achievement of quasi-nanostructured polymer blends by solid-state shear pulverization and compatibilization by gradient copolymer addition. AU - Tao, Ying. AU - Kim, Jungki. AU - Torkelson, John M. PY - 2006/9/7. Y1 - 2006/9/7

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    $4,900 Single Diamond Earring Stud Screw Back 1.35 CT I2 ...

    This High Quality Solid 14K White Gold Single Diamond Earring with Screw Back for Pierced Ear, features a Sparkling Rothem certified H color and I2 clarity Real and Rare Natural Earth Mined Conflict Free Round Brilliant Cut Diamond weighing 1.35 carat.

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    Dispersion and Property Enhancements in Polyolefin/Soy ...

    A novel processing technique combining single-screw extrusion (SSE) and solid-state shear pulverization (SSSP) is employed for producing polyolefin/soy flour biocomposites with synergistic property enhancements. In comparison, SSE and melt-mixed composites show severe particle agglomeration resulting in poor material properties.

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    (PDF) The solid state shear extrusion process optimization ...

    A single screw extruder was used to pulverize rubber granulates at high shear and compression without using cryogenic fluid for cooling. This process, solid-state shear extrusion (SSSE), is

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    Solid-State Shear Extrusion Pulverization for Recycling ...

    Products of a single, uniform color could be formed from this material, and the color could be adjusted by adding additional pigments if needed. This process should be much more energy efficient than conventional repetitive grinding because the pulverization occurs in one step. The powders are formed in the solid state by shear deformation ...

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    Dispersion and Property Enhancements in Polyolefin/Soy ...

    A novel processing technique combining single‐screw extrusion (SSE) and solid‐state shear pulverization (SSSP) is employed for producing polyolefin/soy flour biocomposites with synergistic property e...

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    Experimental and theoretical analyses of pulverization and ...

    A two-stage process for recycling of vulcanized rubber was proposed. In the first stage, the vulcanized rubber was shredded into granulates, and then the granulates were pulverized into fine particles using a single screw extruder in the solid state shear extrusion (SSSE) process. In the second stage, the produced rubber powder was compression molded to produce new items.

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    Solid-state shear pulverization as effective treatment for ...

    Solid-state shear pulverization (SSSP) using a batch-type kneader was performed at a temperature lower than the PP melting point in order to improve the dispersion of the LCNFs in the PP matrix ...

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    Compatibilization of polymer blends by shear pulverization ...

    Jan 01, 2020  In the application for polymer blend compatibilization, mostly SSSP is employed. This is typically carried out in an extruder with efficient cooling mechanism to keep the polymers in solid state. We will now look at the principles, mechanisms, and vessels used for solid-state pulverization. 9.2. Principles of solid-state shear pulverization9.2.1.

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    Achievement of quasi-nanostructured polymer blends by ...

    Sep 07, 2006  This approach is based on solid-state shear pulverization, which yields a fine dispersion of a minor phase in a major phase due to repeated fragmentation and fusion steps within the pulverizer; this solid-state process eliminates certain limitations to the production of nanoblends by melt-state processes, e.g., interfacial tension effects ...

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    Reconstituted polymeric materials derived from post ...

    Single-screw extruder for solid state shear extrusion pulverization and method: 1998-01-06: Arastoopour: 5397065: Solid state shear extrusion pulverization: 1995-03-14: Shutov et al. 5088914: Double flighted extrusion screw: 1992-02-18: Brambilla: 5073320: Preparation of thermoplastics containing ceramic powders as fillers: 1991-12-17: Sterzel ...

    More

    Hamid Arastoopour Illinois Institute of Technology

    Hamid Arastoopour is Henry R. Linden Professor of Engineering and Director of Wanger Institute for Sustainable Energy Research (WISER) at Illinois Institute of Technology (IIT) in Chicago, Illinois. Since 1985, he has been a member of the chemical engineering faculty at IIT, where he served as chairman of the department from 1989 to 2003, and Dean of the Armour

    More

    Processing-structure-property relationships in solid-state ...

    Jul 01, 2012  Furthermore [E.sub.p], has been measured for simple pulverization of rubher granules with a single screw solid-state shear extruder (46). Although the relevant [E.sub.p], equations vary slightly among these techniques with different processing parameters, the two common key quantities are the power of the motor and the throughput.

    More

    Method and apparatus for shear pulverization of polymer ...

    The solid material is conveyed to the input port by a single screw extruder. The rotation of the rotor generates shear forces on the material which leads to pulverization and particle size reduction into a powder.

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    Well-mixed blends of HDPE and ultrahigh molecular weight ...

    via solid-state shear pulverization Mirian F. Diop a, Wesley R. Burghardt a, b, John M. Torkelson a, b, * a Dept. of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA b Dept. of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA article info Article history: Received 20 May 2014

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    Apparatus and process for pulverization of a polymeric ...

    Solid state shear extrusion pulverization: 1998-04-28: Ivanov: 5704555: Single-screw extruder for solid state shear extrusion pulverization and method: 1998-01-06: Arastoopour: 5397065: Solid state shear extrusion pulverization: 1995-03-14: Shutov et al. 5356054: Wagon with cutting, mixing and dispensing functions for fodder and grass or straw ...

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