the commercialization of the solidstate shear pulverization technology. Equipment A key difference in the SSSP apparatus and conventional twinscrew melt extruders is that the SSSP extruder is maintained at a temperature below the glass and/or melt transition temperature of the polymer through a .

Abstract A twostage 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.

Abstract SolidState Shear Pulverization (S3P) is a new polymer processing technology capable of efficient mixing blends with different component viscosities (which are unprocessable by conventional melt extrusion due to the phase separation). S3P sub ects polymers to compression and shear, resulting in fracture into a powder of various particle size and particle size distribution.

A nonconventional pulverization process known as solidstate shear extrusion (SSSE) is being developed for recycling commingled, unsorted, pre and postconsumer plastic waste. The process uses a specially designed corotating twinscrew extruder with integrated heating and cooling. It is currently in operation at BIRL Polymer Reclamation Center. This work

Solidstate 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.

NEW USED TIRE RECOVERY PROCESS FOR VALUEADDED PRODUCTS Dr. Klementina Khait BIRL, Industrial Research Laboratory Northwestern University Evanston, IL ABSTRACT The goal of this work is to demonstrate a novel pulverization process known as solid state shear extrusion (originally developed in the former USSR)

Study of the solid state shear pulverization process in single screw extruder. ... This study presents results and observations of polymer materials pulverization in conventional single screw extruder with modified barrel heating consisting of two sections the first one heated and the second one cooled. Experiments show that among different ...

This study presents results, observations and new developments on the pulverization of low density polyethylene (LDPE) by a nontraditional technology. A twin screw conical counter‐rotating extruder, a mixer head with roller blades and a single screw extruder attached to a Brabender PL2000 Plasti‐Corder were utilized as pulverization apparatuses.

Novel Principle of Pulverization and Its Application for Polyurethane Waste and Production of Polyurethane s Reinforced with Recycled Powder 1. SUMMARY The Center for Manufacturing Research at Tennessee Technological University (TTU) is developing the Solid State Shear Pulverization (SSSP) process. This novel principle of pulverizing, without using any

The selection of a particular technique can have profound influence on the properties of the final product. The processing techniques explored in our work include solutionbased methods, shear mixing, solid state shear pulverization (collaboration with J. Torkelson), and twinscrew 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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During several past years, novel solid state processing methods, such as shear pulverization or cryogenic mechanical alloying, have been developed to provide efficient mixing of polymer blends . The polymers are disintegrated in pulverizes at cryogenic temperatures, and .

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 .

and industrially scalable process called solidstate shear pulverization (SSSP). This novel polymer processing technique exposes polymers to high shear and compressive forces near ambient temperature, which allows for fragmentaion and fusion steps in the solidstate. We found

Vulcanized natural rubber was pulverized using a single screw extruder in a noncryogenic Solid State Shear Extrusion (SSSE) process where rubber granulates were subjected to high compressive and ...

the solidstate shear extrusion pulverization method of rubber waste using a twinscrew extruder and a singlescrew extruder has also been proposed...