Device for preparing nano laminated composite material with adjustable layers

A composite material and nano-lamination technology, which is applied in the field of advanced material processing, can solve the problems affecting the molding quality of laminated composite materials, the difficulty of processing laminated composite generators, and the complicated and inflexible operation, so as to achieve the reduction of pressure loss and the design The manufacturing process is simple and the runners have good symmetry

Active Publication Date: 2014-08-06
BEIJING UNIV OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A recent invention patent 2009202718783 discloses a device for preparing nano-laminated composite materials. , to obtain composite materials with different layers, it is necessary to change the series number of laminated composite generators, the operation is complicated and inflexible
Moreover, from a practical point of view, the number of inlets m of the laminated composite generator should not be too large, because too many openings will not only bring greater difficulty to the processing of the laminated composite generator, but also lead to the final melt flow Inhomogeneity, which affects the molding quality of laminated composites
On the other hand, the series connection of laminated composite generators should not be too much, because as the number of series connection increases, the flow resistance increases, and the back pressure generated continues to increase, which may even cause flash when the composite melt is formed.

Method used

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  • Device for preparing nano laminated composite material with adjustable layers
  • Device for preparing nano laminated composite material with adjustable layers
  • Device for preparing nano laminated composite material with adjustable layers

Examples

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Embodiment 1

[0015] This embodiment discloses a device for preparing a nano-laminated composite material with an adjustable number of layers. The overall shape is as attached figure 1 As shown, there are two or more extruders plasticizing feeder 1, manifold 2, diverter 3, die 4, composite stacker 5, back port die 6 and forming device 7, which are front and back Connect in series. The confluencer 2 converges the n kinds of polymer melts 2-1 from the n sets of plasticizing feeder 1 into n layers of equal-thick polymer melts, and then the melts pass through the splitter 3, where the melts are melted It is divided into 4 equal parts along the width direction. The two melts on the outer side flow along the horizontal flow channel, and the two melts on the inner side rotate 90 degrees when flowing forward. These two groups of melts are symmetrical. Flow, they flow into the corresponding die inlet after exiting the splitter, image 3 with Figure 4 These are the states when the die is at the initi...

Embodiment 2

[0019] This embodiment discloses another example of a nano-laminated composite material preparation device with an adjustable number of layers, as shown in the attached Figure 5 As shown, it is composed of two or more injection molding machines' plasticizing feeder 1, manifold 2, splitter 3, die 4, composite stacker 5, back port die 6, nozzle 8 and mold 9 in series in sequence . The injection nozzle 8 and the mold 9 constitute a molding device, and the nozzle 8 is connected with the mold 9 during injection molding. The melt passes through the combiner 2, the splitter 3, the die 4, and the composite stacker 5, and finally comes out of the back port die outlet and has been superimposed to form 4n×m k Layer (the die is in the initial position) or 2n×m k The composite melt is injected into the cavity of the mold 9 through the nozzle 8 and is cooled and shaped to obtain a polymer laminated composite injection molded product.

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Abstract

The invention discloses a nano-lamination composite material preparation device with adjustable layers, which includes a plasticizing feeding device, a confluence device, a flow divider, a die, a composite lamination device, a rear port die and a molding device connected in series. , the plasticized melts of n plasticizing feeding devices are stacked together through the confluence, and then divided into 4 parts along the width direction when passing through the diverter, and then each part of the melt flows to the die part of the straight channel, the die It can be adjusted to the initial position with four inlets connected or the second position with two inlets connected by rotation. The outlet of the die is connected to the composite stacker. By adjusting the position of the die, it can be finally laminated to form 4n×mk or 2n×mk The multi-layer structure composite material of the layer continues to flow through the forming device to obtain the final product. The composite laminator adopted by the invention has high layering efficiency, the number of series units can be reduced, the pressure loss can be greatly reduced, and the number of layers of the finally obtained composite product can be changed by rotating the position of the die.

Description

Technical field [0001] The invention belongs to the technical field of advanced material processing, and relates to a nano-laminated composite material preparation device with an adjustable number of layers, which can prepare multi-layer composite structure polymer materials and products through composite extrusion or composite injection molding. Background technique [0002] Micro-nano laminated composite materials have unique advantages in mechanical properties, barrier properties, electrical conductivity, optical properties, etc., and have broad application prospects, so they have become a research hotspot in the field of materials. Currently, the published patents include the earliest US patents 3557265, 3565985, 3884606, and later Chinese patents CN1511694A, 200610022348.6 and so on. A recent invention patent 2009202718783 discloses a nano-laminated composite material preparation device, which breaks through the limitation of the original technology of dividing into two, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/06B29C47/10B29C47/70B29C45/16B29C45/22B29C48/21B29C48/495
CPCB29C47/56B29C48/21B29C48/495
Inventor 杨卫民袁聪姬钟雁王德禧王笃金田岩丁玉梅
Owner BEIJING UNIV OF CHEM TECH
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