Twin-screw extruder suitable for the production of special materials for melt-blown non-woven fabrics

A twin-screw extruder and melt-blown non-woven fabric technology, applied in the field of new polymer material production technology, can solve the problems of incomplete degradation reaction, insufficient reaction, incomplete degradation reaction, etc., and achieve full and complete reaction and molecular weight. Appropriate distribution and stable melting index

Active Publication Date: 2017-12-01
HUNAN SHENGJIN NEW MATERIAL
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a twin-screw suitable for the production of special materials for melt-blown non-woven fabrics, which solves the problems that the existing common twin-screw extruder is not completely suitable for degradation reaction, the degradation reaction is incomplete, and the reaction is insufficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Twin-screw extruder suitable for the production of special materials for melt-blown non-woven fabrics
  • Twin-screw extruder suitable for the production of special materials for melt-blown non-woven fabrics

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Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] Twin-screw extruder of the present invention, as figure 1 As shown, it includes a cylinder body 1, which is placed horizontally on the bracket 2, an exhaust chamber 3, a degradation agent injection port 4 are arranged above the cylinder body 1, and a heating tile 5 is wrapped on the surface of the cylinder body 1. One end of the cylinder body 1 The lower barrel 6 is connected, and the barrel body 1 is provided with twin-screws 7, the length-to-diameter ratio of the twin-screws 7 ranges from 40 to 58, and threaded elements 8 are sheathed on the twin-screws 7.

[0014] The combinations of the threaded elements 8 are: 56 / 56A, 96 / 96, 72 / 72, 56 / 56, 56 / 56, 56 / 56, 56 / 56, 56 / 56, 56 / 56, 45° / 5 / 96, 56 / 56, 72 / 72, 56 / 56, 45° / 5 / 56, 60° / 4 / 56, 45° / 5 / 56, 56 / 56, 56 / 56, 45° / 5 / 56 , 45° / 5 / 56, 45° / 5 / 56, 56 / 56, 45° / 5 / 56, 60° / 4 / 56, 90° / 5 / 56, 56 / 56, 45° / 5 / 5...

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Abstract

The invention discloses a double-screw extruder suitable for melt-blown nonwoven cloth special material production. The double-screw extruder comprises a cylinder, wherein the cylinder is arranged transversely on a bracket; an exhaust chamber and a degradation agent injection hole are arranged above the cylinder; a heating tile is further packaged on the surface of the cylinder; one end of the cylinder is connected with a blanking barrel; double screws are arranged in the cylinder; the length-diameter ratio of the double screws is 40-58; and screw elements sleeve the double screws. The double-screw extruder has the following beneficial effects: by utilizing the length-diameter ratio of the screws, the screw combination design and the degradation agent feed hole position design, the raw materials and auxiliary materials are mixed completely and uniformly during reaction, the reaction is relatively sufficient, the product melt index is stable, the molecular weight distribution is proper, and the double-screw extruder is suitable for a melt-blown spinning process.

Description

technical field [0001] The invention belongs to the field of new polymer material production technology and relates to a twin-screw extruder suitable for the production of special materials for melt-blown non-woven fabrics. Background technique [0002] Meltblown nonwoven fabric is a kind of nonwoven fabric. Due to the uniqueness of the melt-blown process, the fibers produced are almost superfine fibers, so the melt-blown non-woven fabric has excellent barrier filtration, air permeability, and oil absorption, and is widely used in medical protection, sanitary materials, and filter materials. , thermal insulation materials, oil-absorbing materials, battery separators and other fields. [0003] The preparation process of this special material is roughly divided into two types, one is the chemical degradation method, and it is divided into a complete degradation method and an incomplete degradation method. At present, the incomplete degradation method is generally used in Chin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/38B29C47/60B29C48/395
CPCB29C48/395B29C48/505
Inventor 周代军周慧初陈邵安
Owner HUNAN SHENGJIN NEW MATERIAL
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