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A kind of plastic polyethylene monofilament/strip and its preparation method and application

A technology of polyethylene and plasticity, applied in the field of daily necessities, can solve problems such as broken wires, achieve good structure compactness, easy fibrosis, and reduce the risk of stabbing the skin

Active Publication Date: 2021-08-27
JIANGMEN BAOLIDE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface friction coefficient between the guide wire shaft and polyethylene has a great influence on the production of polyethylene products. At this time, the polyethylene has not yet been fully formed, and is in the process of transforming from a viscous fluid state to a highly elastic state, and the molecular structure is in a relaxed state. , it is extremely easy to produce irreversible permanent deformation
At this time, the polyethylene is subjected to the traction force from the tractor and the dynamic friction force generated between the guide wire shafts to prevent the movement of polyethylene to the direction of the tractor. It is speculated that these two forces in opposite directions are likely to cause slight distortion of polyethylene. When the polyethylene is doubled by the stretching force during the high-magnification stretching process, these distortions are likely to cause broken filaments

Method used

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  • A kind of plastic polyethylene monofilament/strip and its preparation method and application
  • A kind of plastic polyethylene monofilament/strip and its preparation method and application
  • A kind of plastic polyethylene monofilament/strip and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1) Mix 70% polyethylene D, 20% polyethylene E, 9.5% calcium carbonate masterbatch, and 0.5% lubricant on a mixer; the above-mentioned percentages are percentages by weight; the lubricant used is ethylene wax;

[0044] 2) Put the material mixed in step 1) into the extruder for extrusion. The inner diameter of the extruder is 80mm, the die hole size: 1.8mm*15mm, 2 holes in total, and the temperature of the extruder is 150-220°C;

[0045] 3) cooling the mixture extruded in step 2) with cold water between 5 and 30°C;

[0046] 4) The material after cooling and forming in step 3) passes through the first drawing machine and then enters the hot water tank, the speed of the drawing machine is 5m / min, and the temperature of the hot water tank is 90°C;

[0047] 5) The material heated by the hot water tank in step 4) is passed through the second drafting machine, the speed of the drafting machine is 50m / min, and the material is stretched by the speed difference between the second ...

Embodiment 2

[0059] 1) Mix 60% polyethylene D, 30% polyethylene E, 9.99% calcium carbonate masterbatch, and 0.01% lubricant on a mixer; the above-mentioned percentages are percentages by weight; the lubricant is silicone lubricant;

[0060] 2) Put the material mixed in step 1) into the extruder for extrusion. The inner diameter of the extruder is 80mm, the die hole size: 1.8mm*15mm, 2 holes in total, and the temperature of the extruder is between 150°C and 300°C;

[0061] 3) cooling the mixture extruded in step 2) with cold water between 5 and 40°C;

[0062] 4) The material cooled and formed in step 3) enters the hot water tank after passing through the first drafting machine, the speed of the drafting machine is 2m / min, and the temperature of the hot water tank is 70°C;

[0063] 5) The material heated by the hot water tank in step 4) is passed through the second drafting machine, the speed of the drafting machine is 16m / min, and the material is stretched by the speed difference between t...

Embodiment 3

[0071] 1) Mix polyethylene D80%, polyethylene E10%, calcium carbonate masterbatch 9%, and lubricant 1% on a mixer; the above-mentioned percentages are percentages by weight; the lubricant is tetrafluoroethylene lubricant;

[0072] 2) Put the material mixed in step 1) into the extruder for extrusion, the inner diameter of the extruder is 80mm, the die hole size: 1.8mm*15mm, a total of 2 holes, and the temperature of the extruder is between 150 and 300°C;

[0073] 3) cooling the mixture extruded in step 2) with cold water between 5 and 40°C;

[0074] 4) The material after cooling and forming in step 3) passes through the first drawing machine and then enters the hot water tank, the speed of the drawing machine is 10m / min, and the temperature of the hot water tank is 100°C;

[0075] 5) The material heated by the hot water tank in step 4) is passed through the second drafting machine, the speed of the drafting machine is 100m / min, and the material is stretched by using the speed ...

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Abstract

The invention discloses a plastic polyethylene monofilament / strip as well as its preparation method and application, belonging to the technical field of daily necessities. The plastic polyethylene monofilament / strip is composed of the following components in weight percentage: polyethylene D 60% to 80%; polyethylene E 10% to 30%; calcium carbonate masterbatch 1% to 20%; lubricant 0.01% ~1%. The invention also provides the preparation method and application of the plastic polyethylene monofilament / strip. The plastic polyethylene monofilament / strip of the present invention is left to stand for 10 minutes after being folded in half, and the rebound angle after bending is measured, and the angle is less than or equal to 15°; the product has a relatively large breaking force; Use, the surface is not easy to produce fine fibers. The invention can not only reduce energy consumption, but also appropriately reduce the stretching ratio of products and lower the requirements on production equipment.

Description

technical field [0001] The invention belongs to the technical field of daily necessities, and in particular relates to a plastic polyethylene monofilament / strip as well as its preparation method and application. Background technique [0002] At present, there are cable ties or mask nose strips on the market that require plasticity. They are generally made of metal or plastic-coated metal. When recycling metal-clad materials, plastic and metal need to be separated, which is inconvenient to operate. The monofilament or plastic strip made of plastic material is relatively soft and easy to recycle, but due to the good resilience of the plastic itself, the shaping effect is poor and the plasticity is not strong. [0003] The monofilaments or plastic strips made of plastic materials in the prior art mostly use high-density polyethylene raw materials, which are cooled and formed after being melted and extruded, and then heated and stretched. The product is easily broken during the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/06D01F1/10D01D5/12D01D5/088
CPCD01D5/088D01D5/12D01F1/10D01F8/06
Inventor 殷发志王欢李芳邹振鹏黄锡林梁高胜
Owner JIANGMEN BAOLIDE PLASTIC
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