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PP (Polypropylene) net-shaped filling rope and manufacturing method

A filling rope and mesh technology, applied in the field of PP mesh filling rope and preparation, can solve the problems of reduced anti-aging performance of resin, uneven dispersion of calcium carbonate, and difficult dispersion of powder, and achieves low water absorption, moderate tightness, Good flexibility and strength

Inactive Publication Date: 2018-08-28
JIANGSU ZHONGTIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology needs to prepare calcium carbonate masterbatch first, and the resin required for preparing the masterbatch is extruded once before the film is drawn, and the anti-aging performance of the resin is reduced
Moreover, the masterbatch is prepared first, and then the extrusion film is carried out. The raw materials are processed twice, and the production cost is relatively high.
In addition, in the preparation process of calcium carbonate masterbatch, due to the use of a large amount of calcium carbonate, the powder is not easy to disperse, the fluidity is poor, and the dispersion of calcium carbonate in the resin is uneven

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A PP mesh filling rope, comprising the following raw materials in mass percentage: 65% calcium carbonate, 0.7% titanate coupling agent 131, 21% polypropylene, 7% polyethylene 1.1% stearic acid, 2.2% paraffin, 0.25% antioxidant 1010, 0.15% antioxidant 168, 2.6% plastic defoamer masterbatch. Among them, the particle size of the calcium carbonate powder is 600 mesh, the polypropylene adopts the drawing grade resin with a melt index of 3.0, and the polyethylene is linear low-density polyethylene.

[0031] The preparation method of PP mesh filling rope, comprises the following steps:

[0032] (1) Pre-treatment and weighing of raw materials: Prepare and weigh raw materials according to the following formula: 65% calcium carbonate, 0.7% solid titanate coupling agent 131, 21% polypropylene, 7% polyethylene , 1.1% stearic acid, 2.2% paraffin, 0.25% antioxidant 1010, 0.15% antioxidant 168, 2.6% plastic defoamer masterbatch;

[0033] (2) Mixing materials with a high-speed mixer:...

Embodiment 2

[0045] A PP mesh filling rope, including the following raw materials in mass percentage: 50% calcium carbonate, 0.5% solid titanate coupling agent 131, 35% polypropylene, 9% polyethylene, 1% stearin Acid, 2% paraffin, 0.3% antioxidant 1010, 0.2% antioxidant 168, 2% plastic defoamer masterbatch. Among them, the calcium carbonate powder has a particle size of 400 mesh, the polypropylene adopts a drawing-grade resin with a melt index of 3.0, and the polyethylene is a linear low-density polyethylene.

[0046] The preparation method of above-mentioned PP net shape filling rope, comprises the following steps:

[0047] (1) Pre-treatment and weighing of raw materials: Prepare and weigh raw materials according to the following formula: 50% calcium carbonate, 0.5% solid titanate coupling agent 131, 35% polypropylene, 9% polyethylene , 1% stearic acid, 2% paraffin, 0.3% antioxidant 1010, 0.2% antioxidant 168, 2% plastic defoamer masterbatch;

[0048] (2) Mixing materials with a high-sp...

Embodiment 3

[0060] A PP mesh filling rope, including the following raw materials in mass percentage: 75% calcium carbonate, 0.8% titanate coupling agent 131, 13% polypropylene, 4% polyethylene, 1.3% stearic acid , 2.6% paraffin, 0.2% antioxidant 1010, 0.1% antioxidant 168, 3% defoamer masterbatch. Among them, the particle size of the calcium carbonate powder is 800 mesh, the polypropylene adopts the drawing-grade resin with a melt index of 3.0, and the polyethylene is linear low-density polyethylene.

[0061] The preparation method of above-mentioned PP net shape filling rope, comprises the following steps:

[0062] (1) Pre-treatment and weighing of raw materials: Prepare and weigh raw materials according to the following formula: 75% calcium carbonate, 0.8% solid titanate coupling agent 131, 13% polypropylene, 4% polyethylene , 1.3% stearic acid, 2.6% paraffin, 0.2% antioxidant 1010, 0.1% antioxidant 168, 3% plastic defoamer masterbatch;

[0063] (2) Mixing materials with a high-speed ...

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Abstract

The invention discloses a PP (Polypropylene) net-shaped filling rope which comprises the following raw materials in percentage by mass: 50-75% of packing, 0.5-0.8% of a coupling agent, 13-35% of polypropylene, 4-9% of polyethylene, 1-1.3% of stearic acid, 2-2.6% of paraffin, 0.3-0.5% of an antioxidant and 2-3% of a defoaming agent. A preparation method comprises the following steps: performing pretreatment and weighing on raw materials; mixing the materials by using a high-speed mixing machine; discharging and cooling the materials; feeding the materials; extruding the materials by using a double-screw extruder; cooling in a water trough; cutting by using a first tractor; tensioning by using a hot extension plate; forming nets by using a netting machine; tensioning by using a second tractor; coiling by using a coiling machine; combining yarns by using a rope maker. The rope is produced by using the double-screw extruder, a calcium carbonate master batch preparation procedure is avoided, the production efficiency is simplified, the production efficiency is improved, the production cost is lowered, the PP filling rope produced by using the method is high in whiteness, low in hydroscopicity, relatively good in flexibility and high in strength, and a cable filled with the rope is appropriate in tightness, and cable cores can be round and tidy.

Description

technical field [0001] The invention relates to the technical field of filling rope manufacture, in particular to a PP mesh filling rope and a preparation method thereof. Background technique [0002] In the production process of multi-core cables, in order to make the cable cores round and improve the appearance quality, it is necessary to fill the gaps in the insulated cores during cable forming. The choice of filling material plays a vital role in the roundness of the cable, and the filling materials usually used mainly include filling rope and filling strip. The filling rope is soft, and can be freely combined and matched with different specifications to meet the needs of different void shapes and areas. It is easy to use, so it is widely used. Polypropylene (PP) filling rope woven with polypropylene mesh tearing fibers is suitable for light filling and can be widely used in the cross-sectional structure of low-voltage power cables, control cables, medium and high-volta...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L23/06C08L9/06C08K13/02C08K5/09C08K5/134C08K5/526C08K3/22C08K3/26B29C47/92D01D5/42D07B1/02B29C48/92
CPCB29C48/92B29C2948/92704C08K2003/2206C08K2003/265C08L23/12C08L2205/035D01D5/42D07B1/02C08L23/0815C08L23/06C08L9/06C08K13/02C08K5/09C08K5/1345C08K5/526C08K3/22C08K3/26
Inventor 吴飞管成飞宋俊男陆金杰翟以军
Owner JIANGSU ZHONGTIAN TECH CO LTD
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