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A dispenser structure for preparing multilayer cpp films

A dispenser and film technology, which is applied in the field of dispenser structure of multi-layer CPP film, can solve problems such as uneven distribution technology, difficulty in uniform distribution, and difficulty in co-extrusion of multi-layer CPP film layers, so as to achieve uniform distribution of formula, The effect of fluid stabilization

Active Publication Date: 2021-10-12
SUZHOU RDX NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the uneven shunting technology of the current distributor, especially when the single-layer CPP film layer is below 15um, it will be difficult to distribute evenly, so it is difficult to realize the co-extrusion of multi-layer CPP film layers

Method used

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  • A dispenser structure for preparing multilayer cpp films

Examples

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Effect test

specific Embodiment example 1

[0019] like figure 1 As shown, it is a schematic diagram of a distributor structure for preparing multilayer CPP film, which includes: raw material inlet (10), splitter cone (11, 12, 14, 15), splitter pipe (111, 112, 114, 115), central tube (113), flow limiting cone (13), characterized in that: two splitter cones (11, 12) are sequentially and concentrically set on the central tube (113), wherein the first splitter cone (11) One end of the first splitter cone (11) is connected to the raw material inlet (10), and the other section of the first splitter cone (11) is concentrically nested at one end of the second splitter cone (12). Each splitter cone (11, 12, 14, 15) , the fluid will be divided into two strands, and will be transmitted along the axial direction through the splitter tubes (111, 112, 114, 115). The fluid of the flow cone (13) and the front shunt pipes (111, 114) will merge into a stream of fluid I, and the fluid passing through the flow restrictor cone (13) will m...

specific Embodiment example 2

[0021] A distributor for preparing multilayer CPP films, comprising: raw material inlets (10), splitter cones (11, 12, 14, 15), splitter pipes (111, 112, 114, 115), central tubes (113 ), restrictor cone (13), characterized in that: two diverter cones (11, 12) are concentrically set on the central tube (113) successively, wherein one end of the first diverter cone (11) is connected to the raw material inlet (10 ), the other section of the first splitter cone (11) is concentrically nested at one end of the second splitter cone (12), and each time a splitter cone (11, 12, 14, 15) passes through, the fluid will be divided into 2 Strand, and through the distribution tube (111, 112, 114, 115) along the axial direction transmission, at the end of the center tube (113) set restrictor cone (13), and the flow through the restrictor cone (13) It will merge with the front shunt tubes (111, 114) into a stream of fluid I, and at the same time, the fluid passing through the restrictor cone (...

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Abstract

In order to solve the unevenness of the existing distributor shunting technology, especially when the single-layer CPP film layer is lower than 15um, it will be difficult to distribute evenly, so it is difficult to realize the problem of co-extrusion of multi-layer CPP film layers. The present invention proposes A distributor structure for preparing multi-layer CPP film, which adopts multiple splitter cones to divide the flow, and then merges again, so that it can evenly distribute the polypropylene melt, and the thickness of each layer of CPP film can be adjusted. Reach 5um ~ 15um. In this way, the original single-layer CPP film can be replaced by a multi-layer CPP film without increasing the material cost.

Description

technical field [0001] The invention relates to processing equipment for aluminum-plastic composite films, in particular to a distributor structure for producing multi-layer CPP films in aluminum-plastic composite films. Background technique [0002] Usually, the aluminum-plastic composite film is composed of an outer nylon layer, a middle aluminum foil layer and an inner heat-sealing layer to form a composite material, and the layers are bonded by an adhesive. However, lithium-ion batteries may leak corrosive liquid or hydrofluoric acid during use, and the inner heat-seal layer of ordinary aluminum-plastic composite films is easily penetrated by corrosive liquid or hydrofluoric acid, resulting in a short circuit. The reason why the inner heat-sealing layer of the aluminum-plastic composite film is easily penetrated by corrosive liquid or hydrofluoric acid is that the inner heat-sealing layer of the aluminum-plastic composite film is mainly a CPP film, and the CPP film is a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/70B29L7/00B29L9/00B29K23/00
CPCB29K2023/12B29L2007/00B29L2009/00B29C48/705
Inventor 张建林
Owner SUZHOU RDX NEW MATERIAL TECH CO LTD
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