A system includes a curing assembly for low temperature curing and residual stress relief of material substrates. The curing assembly includes a first exposure chamber configured to expose the material substrate to UV radiation, and a second exposure chamber configured to expose the material substrate to Gamma radiation. In some embodiments, a mixing apparatus may mix nano-filler particles into the material substrate prior to exposure to Gamma radiation. The cure assembly may also include a control system for determining exposure dosages and exposure times based at least in part, on the material properties of the material substrate.

To provide a process for producing a film excellent in water vapor barrier property, tensile elongations, and transparency. A resin material containing polychlorotrifluoroethylene (PCTFE) is melted and extruded into a film from an extrusion die, the extruded product is brought into contact with a cooling roll having a surface temperature of at most 120° C. in a state such that the surface temperature of the extruded product is higher than the crystallization temperature of PCTFE to form a film web, and the film web is subjected to heat treatment at from 80 to 200° C. to obtain a film.

It is provided that a method for producing a biaxially oriented polyester film that can be used for industrial and packaging applications. A method for producing a biaxially oriented polyester film, comprising: a step of feeding a polyester resin into an extruder, a step of extruding the molten polyester resin from an extruder to obtain a molten resin sheet at 250 to 310° C., a step of attaching the molten resin sheet closely to a cooling roll by an electrostatic application method to obtain an unstretched sheet, and a step of biaxially stretching the unstretched sheet, wherein the polyester resin fulfills the following (A) to (C): (A) the polyester resin comprises a polyethylene furandicarboxylate resin composed of a furandicarboxylic acid and ethylene glycol; (B) an intrinsic viscosity of the polyester resin is 0.50 dL/g or more; (C) a melt specific resistance value at 250° C. of the polyester resin is 3.0×10.sup.7 Ω.Math.cm or less.

It is provided that a method for producing a biaxially oriented polyester film that can be used for industrial and packaging applications. A method for producing a biaxially oriented polyester film, comprising: a step of feeding a polyester resin into an extruder, a step of extruding the molten polyester resin from an extruder to obtain a molten resin sheet at 250 to 310° C., a step of attaching the molten resin sheet closely to a cooling roll by an electrostatic application method to obtain an unstretched sheet, and a step of biaxially stretching the unstretched sheet, wherein the polyester resin fulfills the following (A) to (C): (A) the polyester resin comprises a polyethylene furandicarboxylate resin composed of a furandicarboxylic acid and ethylene glycol; (B) an intrinsic viscosity of the polyester resin is 0.50 dL/g or more; (C) a melt specific resistance value at 250° C. of the polyester resin is 3.0×10.sup.7 Ω.Math.cm or less.

A method for producing a rubber-plastic composite, including the steps of (a) shaping an unvulcanized elastomer, (b) partially vulcanizing the shaped elastomer at a temperature of at least 140° C. up to a degree of vulcanization in the range from 10% to 40%, (c) cooling the partially vulcanized elastomer to a temperature of less than 100° C. within less than 20 minutes, (d) overmolding the partially vulcanized elastomer with a plastic, and (e) heat treating the partially vulcanized elastomer overmolded with a plastic at a temperature in the range from 100° C. to 170° C. for a duration of from 5 minutes to 5 hours to complete the vulcanization and form a rubber-plastic composite. The method further relates to a rubber-plastic composite obtainable by the method according to the invention and also to a shoe comprising the rubber-plastic composite obtainable by the method according to the invention.

A method for producing a rubber-plastic composite, including the steps of (a) shaping an unvulcanized elastomer, (b) partially vulcanizing the shaped elastomer at a temperature of at least 140° C. up to a degree of vulcanization in the range from 10% to 40%, (c) cooling the partially vulcanized elastomer to a temperature of less than 100° C. within less than 20 minutes, (d) overmolding the partially vulcanized elastomer with a plastic, and (e) heat treating the partially vulcanized elastomer overmolded with a plastic at a temperature in the range from 100° C. to 170° C. for a duration of from 5 minutes to 5 hours to complete the vulcanization and form a rubber-plastic composite. The method further relates to a rubber-plastic composite obtainable by the method according to the invention and also to a shoe comprising the rubber-plastic composite obtainable by the method according to the invention.

Electrically conductive thermoplastic polymer composites of particulate thermoplastic polyester polymers, electrically conductive components (carbon nanofibers, graphene nanoplatelets, and/or conductive metal nanoparticulates), processing aids such as plasticizers, thermal stabilizers, etc., as well as nanoscopic particulate fillers such as nanoscopic titanium dioxide, etc., the electrically conductive components being distributed substantially uniformly in the composite to form an electrically conductive network. Also, methods for preparing thermoplastic polymer composites, a system for collecting extruded filaments prepared from thermoplastic polymer composites as a coil of filament, as well as method for tempering articles formed from thermoplastic polymer composites to increase the degree of crystallinity of the thermoplastic polymers and thus their mechanical strength properties.

Electrically conductive thermoplastic polymer composites of particulate thermoplastic polyester polymers, electrically conductive components (carbon nanofibers, graphene nanoplatelets, and/or conductive metal nanoparticulates), processing aids such as plasticizers, thermal stabilizers, etc., as well as nanoscopic particulate fillers such as nanoscopic titanium dioxide, etc., the electrically conductive components being distributed substantially uniformly in the composite to form an electrically conductive network. Also, methods for preparing thermoplastic polymer composites, a system for collecting extruded filaments prepared from thermoplastic polymer composites as a coil of filament, as well as method for tempering articles formed from thermoplastic polymer composites to increase the degree of crystallinity of the thermoplastic polymers and thus their mechanical strength properties.

The invention provides a method for manufacturing a 3D item (10) with a fused deposition modeling 3D printer, the method comprising (a) providing a thermoplastic material (20), wherein the thermoplastic material (20) comprises a first polymer (21) of the semi-crystalline type, wherein the first polymer (21) has a glass temperature (T.sub.g) and wherein the thermoplastic material (20) has a melting temperature (T.sub.m); generating in a generation stage an intermediate 3D printed item (110) by printing the thermoplastic material (20), wherein the thermoplastic material (20) is heated to a temperature equal to or above the melting temperature (T.sub.m), while maintaining during printing an ambient temperature (T.sub.a) to the intermediate 3D printed item under construction below the glass temperature (T.sub.g); and generating in an annealing stage said 3D item (10) by heating the intermediate 3D printed item (110) equal to or above the glass temperature (T.sub.g).

The invention provides a method for manufacturing a 3D item (10) with a fused deposition modeling 3D printer, the method comprising (a) providing a thermoplastic material (20), wherein the thermoplastic material (20) comprises a first polymer (21) of the semi-crystalline type, wherein the first polymer (21) has a glass temperature (T.sub.g) and wherein the thermoplastic material (20) has a melting temperature (T.sub.m); generating in a generation stage an intermediate 3D printed item (110) by printing the thermoplastic material (20), wherein the thermoplastic material (20) is heated to a temperature equal to or above the melting temperature (T.sub.m), while maintaining during printing an ambient temperature (T.sub.a) to the intermediate 3D printed item under construction below the glass temperature (T.sub.g); and generating in an annealing stage said 3D item (10) by heating the intermediate 3D printed item (110) equal to or above the glass temperature (T.sub.g).