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single screw solid state pulverization

US5704555A Single-screw extruder for solid state shear

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.

Single Screw Solid State Pulverization

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.

Single-screw extruder for solid state shear extrusion

Jan 06, 1998· 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.

single screw solid state pulverization arcoiris-maassluis.nl

single screw solid state pulverization. Schematic diagrams of diamond, graphite, fullerene single-wall carbon nanotube (SWCNT) and multi-wall carbon nanotube (MWCNT). Figure 2. Chiral vector Ch . Chat Online. Christopher Bollyn. Readers' Comments on Final Chapters of Solving 9/11. May 27, 2011.

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 Article in Polimery -Warsaw- 49(3):202-207 · March 2004 with 37 Reads

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

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.

Pulverization of rubber using modified Solid State Shear

A single screw extruder was used to pulverize rubber granulates at high shear and compression without using cryogenic fluid for cooling. known as the solid state shear extrusion 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

Pulverization of rubber under high compression and shear

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

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 Article in Polimery -Warsaw- 49(3):202-207 · March 2004 with 37 Reads

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 predominantly related to the

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.

Dispersion and Property Enhancements in Polyolefin/Soy

Biocomposites of low-density polyethylene (LDPE) and polypropylene (PP) with 5-40 wt% soy flour (SF) are produced by two-step single-screw extrusion (SSE) followed by solid-state shear pulverization (SSSP). The SSE-SSSP approach overcomes limitations with melt mixing, e.g poor SF dispersion and degradation, and limitations with single-step SSSP.

Achievement of quasi-nanostructured polymer blends by

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

Solid-State/ Melt Extrusion (SSME) at Bucknell University

Apr 23, 2013· The instrument, which is a modified twin-screw extruder (TSE) incorporating solid-state shear pulverization (SSSP) in its initial segment, can fabricate effective polymer blends and polymer

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.

solid extrusion definition English

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

Hamid Arastoopour Inventions, Patents and Patent

Abstract: 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

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 College of Engineering from 2003

Solid-State Shear Pulverization (SSSP) at Bucknell

Aug 04, 2010· Video tour of the Polymer Processing Laboratory at Bucknell University College of Engineering, highlighting the Solid-State Shear Pulverizer

Efficient Fabrication of Polymer Nanocomposites with

Dec 31, 2012· In this communication, solid‐state/melt extrusion (SSME) is introduced as a novel technique that combines solid‐state shear pulverization (SSSP) and conventional twin screw extrusion (TSE) in a single extrusion system.

pulverization of solid waste materials j-fit.nl

The pulverization section consists of a cylindrical housing and a screw with an independent driver and cooling provided to both the cylindrical housing and screw to maintain the temperature of the pulverization zone at around room temperature. pyrolysis, municipal waste, recovered materials, solid state shear extrusion,

Analysis of Rubber Particles Produced by the Solid State

Vulcanized natural rubber was pulverized using a single screw extruder in a non-cryogenic Solid State Shear Extrusion (SSSE) process where rubber granulates were subjected to high compressive and shear stresses. The produced particles had diameters ranging from 40 to 1700 µm.

Analysis of Rubber Particles Produced by the Solid State

Vulcanized natural rubber was pulverized using a single screw extruder in a non-cryogenic Solid State Shear Extrusion (SSSE) process where rubber granulates were subjected to high compressive and shear stresses. The produced particles had diameters ranging from 40 to 1700 µm.

Cellulose nanocrystal/polyolefin biocomposites prepared by

Jan 15, 2015· Solid-state shear pulverization: A new strategy for producing polyolefin/CNC composite materials. Here, we employ a single-step, The fine-powder SSSP output was fed to a single-screw melt extruder (Randcastle RCP-0625 microtuder) which was operated with a 50 RPM screw speed and 175–220 °C zone temperatures.

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.

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.

solid extrusion definition English

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

pulverization of solid waste materials j-fit.nl

The pulverization section consists of a cylindrical housing and a screw with an independent driver and cooling provided to both the cylindrical housing and screw to maintain the temperature of the pulverization zone at around room temperature. pyrolysis, municipal waste, recovered materials, solid state shear extrusion,

German pulverization technology Manufacturer Of High-end

Coal gasification Wikipedia. 2019729Coal gasification is the process of producing syngasa mixture consisting primarily of carbon monoxide CO, hydrogen H 2, carbon dioxide CO 2, natural gas CH 4 , and water vapour H 2 Ofrom coal and water, air and or oxygen Historically, coal was gasified to produce coal gas, also known as "town gas" Coal gas is bustible and was used for municipal lighting, and

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 College of Engineering from 2003

Polymer Graphite Nanocomposites: Effective Dispersion and

made by single-screw melt extrusion and (d) PP/2.5 wt % graphite nanocomposite fabricated in the solid state by SSSP. Field-emission scanning electron micrograph of (e) PP/2.5 wt % graphite nanocom-posite fabricated in the solid state by SSSP. Note: all graphite used in making hybrids and nanocomposites was as-received graphite (ARG). Figure 2.

solid waste pulverization soireeplage.be

solid waste management SlideShare. Jun 30, 2014· Growth of Solid Waste In India Waste is growing by leaps & bounds In 1981-91, population of Mumbai increased from 8.2 million to 12.3 million During the same period, municipal solid waste has grown from 3200 tonnes to 5355 tonne, an increase of 67% City like Bangalore produces 2000 tonnes of waste per annum.

Efficient Fabrication of Polymer Nanocomposites with

Dec 31, 2012· In this communication, solid‐state/melt extrusion (SSME) is introduced as a novel technique that combines solid‐state shear pulverization (SSSP) and conventional twin screw extrusion (TSE) in a single extrusion system.

waste pulverization method images

solid waste pulverization method images gold mining. pulverization process of refuse disposal cemcustoms nl solid waste pulverization method images ThrowAway Methods of SolidWaste Disposal 24 Developments in Thermal Pulverization is a mechanical process for chopping tearing and shredding The fraction of this reuse process in the total solidwaste picture is hard to estimate

Overcoming the Achilles’ Heel of Processing of Polymer

Major Property Enhancements by Solid-State Shear Pulverization John M. Torkelson 1-3 , Philip J. Brunner 1,3 , and Neil Kane 3 1 Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208-3120

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