Preparation method of woven bag flat wires with high stability

A stable, woven bag technology, used in filament/thread forming, textile and papermaking, fiber processing, etc., can solve the problem of high cost, achieve the effect of reducing the degree of entanglement, good surface bonding, and enhanced resistance

Inactive Publication Date: 2019-12-06
ZAOYANG DONGHANG WOVEN PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Chinese invention patent with application publication number CN 106496767 A discloses an anti-oxidation plastic woven bag and its preparation method. Polypropylene is used as the base material, and a loaded antioxidant containing bitter almond oil is scientifically compounded, which can significantly improve the plastic woven bag. High temperature resistance and shrinkage resistance, adding polyethylene / winter rye peptide compound can greatly improve the low temperature resistance of plastic woven bags. The substances added in this scheme are all extracted from plants, and the cost is relatively high

Method used

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  • Preparation method of woven bag flat wires with high stability
  • Preparation method of woven bag flat wires with high stability
  • Preparation method of woven bag flat wires with high stability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of preparation method of woven bag flat yarn with high stability comprises the following steps:

[0026] S1 ultra-high molecular weight polyethylene pretreatment: put ultra-high molecular weight polyethylene and paraffin oil into the mixing tank for swelling pretreatment, the swelling time is 20min, the swelling temperature is 134°C, and then the swollen body is filtered with an 80-mesh filter;

[0027] S2 raw material blending and drying: 5kg of swelling body obtained in step S1, 100kg of polypropylene particles, 500g of PP-g-MAH, 1kg of trimellitic anhydride, 50g of bis-octylamine, 10kg of nano-calcium carbonate, 100g of hindered amine stabilizer, aryl Put 100g of sodium phosphate ester and 10g of hydroquinone into the drying mixer and stir, the drying temperature is 100°C, and the drying time is 30min;

[0028] S3 extrusion process: Put the material obtained by blending and drying in the S2 step into a twin-screw extruder. The material goes through three proce...

Embodiment 2

[0033] A kind of preparation method of woven bag flat yarn with high stability comprises the following steps:

[0034] S1 ultra-high molecular weight polyethylene pretreatment: Put ultra-high molecular weight polyethylene and paraffin oil into a mixing tank for swelling pretreatment, the swelling time is 30min, the swelling temperature is 136°C, and then the swollen body is filtered through an 80-mesh filter;

[0035] S2 raw material blending and drying: 7kg of swelling body obtained in step S1, 100kg of polypropylene particles, 700g of PP-g-MAH, 1.5kg of trimellitic anhydride, 70g of aromatic phosphite, 13kg of nano-calcium carbonate, 300g of hindered amine stabilizer, Put 150g of aluminum arylphosphate and 15g of hydroquinone into the drying mixer and stir, the drying temperature is 80°C, and the drying time is 50min;

[0036] S3 extrusion process: Put the material obtained by blending and drying in the S2 step into a twin-screw extruder. The material goes through three proc...

Embodiment 3

[0041] A kind of preparation method of woven bag flat yarn with high stability comprises the following steps:

[0042] S1 ultra-high molecular weight polyethylene pretreatment: put ultra-high molecular weight polyethylene and paraffin oil into a mixing tank for swelling pretreatment, the swelling time is 30min, the swelling temperature is 138°C, and then the swollen body is filtered through an 80-mesh filter;

[0043]S2 raw material blending and drying: 10kg of swelling body obtained in step S1, 100kg of polypropylene particles, 1.5kg of PP-g-MAH, 2kg of trimellitic anhydride, 100g of hydroquinone, 15kg of nano-calcium carbonate, 500g of hindered amine stabilizer, Put 200g of aluminum aryl phosphate and 20g of hydroquinone into the drying mixer and stir, the drying temperature is 100°C, and the drying time is 30min;

[0044] S3 extrusion process: Put the material obtained by blending and drying in the S2 step into a twin-screw extruder. The material goes through three processe...

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Abstract

The invention belongs to the technical field of plastic woven bag processing, and discloses a preparation method of woven bag flat wires with high stability. The preparation method comprises the following steps: S1, performing swelling pretreatment on ultrahigh-molecular-weight polyethylene and paraffin oil; S2, blending and drying the obtained swollen body, polypropylene particles, polypropylene-graft-maleic anhydride (PP-g-MAH), trimellitic anhydride, an antioxidant, a filling master batch, a light stabilizer, a nucleating agent and hydroquinone; S3, carrying out extruding formation on the material obtained by blending and drying to obtain a film; S4, cooling the film by water, and then cutting the cooled film into blank wires; S5, drawing the blank wires into flat wires by a drawing machine; and S6, shaping the flat wires, and winding the shaped flat wires by a winding machine. According to the invention, polypropylene and ultrahigh-molecular-weight polyethylene are blended to prepare the plastic woven bag flat wires, and the plastic woven bag flat wires have high tensile strength and high stability under different temperature conditions.

Description

technical field [0001] The invention belongs to the technical field of plastic woven bag processing, and in particular relates to a preparation method of a highly stable woven bag flat wire. Background technique [0002] The use of plastic woven bags to pack powdery and granular dangerous goods is convenient for storage and corrosion-resistant; it has good air permeability, is conducive to fast loading and unloading, and has low packaging and transportation costs. It is currently the most widely used packaging for powdery and granular dangerous goods. my country's railways are spread all over the country, covering a wide area, and the temperature varies greatly from north to south. The temperature in the cold northern region can reach about minus 40 degrees in winter, while the temperature in the south can reach more than plus 40 degrees in summer, and the temperature inside box cars and containers Up to 85°C. The brittle temperature of polyethylene plastic woven bags is -80...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L51/06C08L91/06C08K3/26C08K5/1539B29C48/08D01D5/42
CPCC08L23/12B29C48/08D01D5/426C08L2205/035C08L2207/068C08K2201/011C08K2003/265
Inventor 张爱军张峰陈颜君
Owner ZAOYANG DONGHANG WOVEN PRINTING CO LTD
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