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Preparation method of friction-resistant polyethylene abrasive bag

A polyethylene and anti-friction technology, which is applied in the field of preparation of anti-friction polyethylene sandbags, can solve the problems of limiting the promotion and application of linear low-density polyethylene films, poor transparency of linear low-density polyethylene films, etc., and achieves easy Obtain, improve lubricity, high tensile strength and high elongation at break

Inactive Publication Date: 2021-06-22
苏州市金泽利塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the linear low density polyethylene film mainly has the following deficiencies in use: (1) a large number of crystals and supramolecular structures with large structural sizes are formed during the film blowing process, which makes the linear low density polyethylene film not transparent. A major defect limits the promotion and application of linear low density polyethylene film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of a friction-resistant polyethylene sandbag, comprising the following steps:

[0030] (1) 4 parts of nano-SiO 2 , 2 parts of alumina fibers and 2 parts of chrysotile fibers were ultrasonically dispersed with 300 parts of 75vt% ethanol aqueous solution for 2h to obtain nano-SiO 2 Suspensions, alumina fiber suspensions and chrysotile fiber suspensions;

[0031] (2) Add 1.6 parts of KH570 into the beaker, then add 20 parts of absolute ethanol and 20 parts of acetic acid solution with pH=3 in sequence, and stir magnetically for 1 hour to obtain the KH570 solution;

[0032] (3) Pour 50% of the above KH570 solution into nano-SiO 2 In the suspension, 25% of the above KH570 solution is poured into the alumina fiber suspension, 25% of the above KH570 solution is poured into the chrysotile fiber suspension, stirred and reacted at 75°C for 4h, and then heated at 8000r / min centrifuged for 10 min, and the precipitates were vacuum-dried at 80°C for 12 h to ob...

Embodiment 2

[0040] A preparation method of a friction-resistant polyethylene sandbag, comprising the following steps:

[0041] (1) 4 parts of nano-SiO 2 , 2 parts of alumina fibers and 2 parts of chrysotile fibers were ultrasonically dispersed with 300 parts of 75vt% ethanol aqueous solution for 2h to obtain nano-SiO 2 Suspensions, alumina fiber suspensions and chrysotile fiber suspensions;

[0042] (2) Add 1.6 parts of KH570 into the beaker, then add 20 parts of absolute ethanol and 20 parts of acetic acid solution with pH=3 in sequence, and stir magnetically for 1 hour to obtain the KH570 solution;

[0043] (3) Pour 50% of the above KH570 solution into nano-SiO 2 In the suspension, 25% of the above KH570 solution was poured into the alumina fiber suspension, 25% of the above KH570 solution was poured into the chrysotile fiber suspension, stirred and reacted at 75°C for 4h, and then heated at 8000r / min centrifuged for 10 min, and the precipitates were vacuum-dried at 80°C for 12 h to ...

Embodiment 3

[0051] A preparation method of a friction-resistant polyethylene sandbag, comprising the following steps:

[0052] (1) 4 parts of nano-SiO 2 , 2 parts of alumina fibers and 2 parts of chrysotile fibers were ultrasonically dispersed with 300 parts of 75vt% ethanol aqueous solution for 2h to obtain nano-SiO 2 Suspensions, alumina fiber suspensions and chrysotile fiber suspensions;

[0053] (2) Add 1.6 parts of KH570 into the beaker, then add 20 parts of absolute ethanol and 20 parts of acetic acid solution with pH=3 in sequence, and stir magnetically for 1 hour to obtain the KH570 solution;

[0054] (3) Pour 50% of the above KH570 solution into nano-SiO 2 In the suspension, 25% of the above KH570 solution was poured into the alumina fiber suspension, 25% of the above KH570 solution was poured into the chrysotile fiber suspension, stirred and reacted at 75°C for 4h, and then heated at 8000r / min centrifuged for 10 min, and the precipitates were vacuum-dried at 80°C for 12 h to ...

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Abstract

The invention provides a preparation method of a friction-resistant polyethylene abrasive bag. The preparation method comprises the following steps: preparing a nano-SiO2 suspension, an alumina fiber suspension and a chrysotile fiber suspension; preparing a KH570 solution; preparing modified nano SiO2, modified alumina fibers and modified chrysotile fibers; preparing a SiO2 graft; preparing maleic anhydride grafted mixed fibers; uniformly stirring a blend of SiO2 graft and pre-irradiated linear low-density polyethylene, and extruding and granulating to obtain plastic particles A; uniformly stirring the maleic anhydride grafted mixed fiber and the pre-irradiated low-density polyethylene blend, and extruding and granulating to obtain plastic particles B; blending the plastic particles A and the plastic particles B, performing extrusion and granulation, and performing film blowing and bag making to obtain the friction-resistant polyethylene abrasive bag. The plastic bag prepared by the method disclosed by the invention is good in mechanical property, relatively high in tensile strength and elongation at break, low in friction coefficient and good in friction resistance.

Description

technical field [0001] The invention relates to the technical field of plastic materials, in particular to a preparation method of a friction-resistant polyethylene sandbag. Background technique [0002] Polyethylene is a non-toxic, odorless, milky white powder or granule, and is a thermoplastic resin with the largest output and largest import volume among the five synthetic resins. It has good chemical stability, very low water absorption, good low temperature resistance, and excellent electrical insulation performance. It is widely used in agriculture, industry, daily necessities processing industry and other industries. It is mainly used to produce films, pipes, wires and cables, containers, single wire, high-frequency insulating materials, etc. Polyethylene is divided into high-density polyethylene, low-density polyethylene, linear low-density polyethylene, ultra-high molecular weight polyethylene and very low-density polyethylene according to different polymerization m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K9/06C08K9/04C08K3/36C08K7/08C08K7/10
CPCC08L23/0815C08K2201/011C08K2201/005C08K2201/003C08K2201/004C08L2207/066C08L23/06C08K9/06C08K9/04C08K3/36C08K7/08C08K7/10
Inventor 陈春辉
Owner 苏州市金泽利塑料有限公司