A method for preparing a PBAT laminated membrane composite material uses PBAT or a material with PBAT as the main component and other biodegradable plastic or superfine calcium carbonate in a mixture. The temperature of the mixture is increased by means of a lamination machine segment by segment, the material is heated slowly to a molten state, and the temperature of a rolling shaft is controlled by introducing cold water to the rolling shaft when the lamination machine conducts membrane lamination, so that the temperatures of rolling wheels and the laminated membrane are controlled.

A method for preparing a PBAT laminated membrane composite material uses PBAT or a material with PBAT as the main component and other biodegradable plastic or superfine calcium carbonate in a mixture. The temperature of the mixture is increased by means of a lamination machine segment by segment, the material is heated slowly to a molten state, and the temperature of a rolling shaft is controlled by introducing cold water to the rolling shaft when the lamination machine conducts membrane lamination, so that the temperatures of rolling wheels and the laminated membrane are controlled.

A conveying system including a conveying channel, a reinforcement feed duct connected to the conveying channel at a reinforcement feed opening and configured to feed a reinforcement material to the conveying channel, and a blower configured to provide a blow in the reinforcement feed duct to push the reinforcement material towards the conveying channel. A compounding system including the same.

A conveying system including a conveying channel, a reinforcement feed duct connected to the conveying channel at a reinforcement feed opening and configured to feed a reinforcement material to the conveying channel, and a blower configured to provide a blow in the reinforcement feed duct to push the reinforcement material towards the conveying channel. A compounding system including the same.

An additive feeder system is presented which is operable for use in a plastic injection molding machine including an injection component and a clamping component. The additive feeder system includes a feeder control unit, a feeder supply mechanism and feeder dosage control mechanism. The additive feeder system is operable to provide a specific dosage of the additive materiel in real-time for mixing with the raw material to achieve desired product characteristics. The additive feeder system may be applied to injection molding and extrusion, such as molding processes, plastic molding processes, blow molding, compression molding, extrusion molding, injection molding and laminating, and comprising additive feeders, for example for color mixing and nutrient supplements.

A powder application apparatus for an at least partially meltable powder to be applied onto a feeding element for producing reinforcing elements comprises a powder container. In the area of an outlet of the powder container a template for defining a basic shape of a reinforcing element to be produced is provided. Further, a closing device for opening and closing the outlet is provided. For producing reinforcing elements having different stiffness, barrier elements in particular connected with the template are provided. The barrier elements reduce the powder supply to the feeding element such that a reinforcing element with areas of different material thickness are created. A method for producing such a reinforcing element.

A powder application apparatus for an at least partially meltable powder to be applied onto a feeding element for producing reinforcing elements comprises a powder container. In the area of an outlet of the powder container a template for defining a basic shape of a reinforcing element to be produced is provided. Further, a closing device for opening and closing the outlet is provided. For producing reinforcing elements having different stiffness, barrier elements in particular connected with the template are provided. The barrier elements reduce the powder supply to the feeding element such that a reinforcing element with areas of different material thickness are created. A method for producing such a reinforcing element.

A method and system of vacuum loading powder used in rotational molding are provided. A loader has a hopper with a tangential inlet at the top and a discharge assembly at the bottom. A vacuum source generates a vacuum at the center of the hopper drawing air and raw material into the tangential inlet. A filter assembly between the tangential inlet and the vacuum source partially separating the air from the raw material. One or more load cells between the hopper and a platform measures an amount of raw material present within the hopper.

A method and system of vacuum loading powder used in rotational molding are provided. A loader has a hopper with a tangential inlet at the top and a discharge assembly at the bottom. A vacuum source generates a vacuum at the center of the hopper drawing air and raw material into the tangential inlet. A filter assembly between the tangential inlet and the vacuum source partially separating the air from the raw material. One or more load cells between the hopper and a platform measures an amount of raw material present within the hopper.

Powder-layer three-dimensional printer recoaters are disclosed which comprise a controllably vibrated traveling powder dispenser having a hopper section adapted to contain a build powder, an opening through which the powder can be controllably discharged laterally into a chamber which is located beside the opening and which has a mesh covering at least a portion of its bottom. A gate is located with its bottom portion proximal to the opening and is adapted so that its bottom portion horizontally oscillates with respect to the hopper. The recoaters also comprise a vibrator that is operably connected to the traveling powder dispenser and is adapted to selectively cause the powder to flow from the hopper through the opening and be discharged through the mesh and the bottom portion of the gate to horizontally oscillate. In some embodiments, the recoaters also comprise a smoothing device which is adapted to smoothen the powder dispensed through the mesh.