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Preparation method of novel PP (polypropylene) composition for packing belts

A composition and a new type of technology, applied in the field of packaging materials, can solve the problems of reducing the plasticity and toughness of the packaging belt, shortening the service life, etc., and achieve the effects of improving the impact strength, firm interface bonding, and improving compatibility and interface performance.

Active Publication Date: 2015-09-09
佛山市环购新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whisker silicon increases the brittleness of the material while improving the creep resistance of the material, reduces the plasticity and toughness of the packing belt, and shortens its service life

Method used

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  • Preparation method of novel PP (polypropylene) composition for packing belts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for a novel PP composition for strapping, comprising the following steps:

[0025] (1) Extract the copper fiber with a length of 5 mm with chloroform for 40 hours to remove impurities on its surface, wash it with deionized water and dry it under room temperature for 10 hours, and mix DMF, DMAP and polyethylene glycol evenly to obtain a bonded fiber Branch liquid, the weight ratio of copper fiber, DMF, DMAP, polyethylene glycol is 100:2:1:9, the copper fiber after drying is put into graft liquid, is placed in gamma ray radiation source heating reaction 3 After taking it out, wash it 3 times with acetone, place it in a vacuum oven and dry it at room temperature for 10 hours to obtain grafted copper fibers;

[0026] (2) adding the grafted copper fiber and PP resin obtained in the step (1) with a weight ratio of 2:3 to a twin-screw extruder and extruding for 40 minutes, the screw speed of the twin-screw extruder was 500rpm, and the obtained pellets The...

Embodiment 2

[0029] A preparation method for a novel PP composition for strapping, comprising the following steps:

[0030] (1) Extract the copper fiber with a length of 5 mm with chloroform for 40 hours to remove impurities on its surface, wash it with deionized water and dry it under room temperature for 10 hours, and mix DMF, DMAP and polyethylene glycol evenly to obtain a bonded fiber Branch liquid, the weight ratio of copper fiber, DMF, DMAP, polyethylene glycol is 100:2:1:9, the copper fiber after drying is put into graft liquid, is placed in gamma ray radiation source heating reaction 3 After taking it out, wash it 3 times with acetone, place it in a vacuum oven and dry it at room temperature for 10 hours to obtain grafted copper fibers;

[0031] (2) adding the grafted copper fiber and PP resin obtained in the step (1) with a weight ratio of 2:3 to a twin-screw extruder and extruding for 40 minutes, the screw speed of the twin-screw extruder was 500rpm, and the obtained pellets The...

Embodiment 3

[0034] A preparation method for a novel PP composition for strapping, comprising the following steps:

[0035] (1) Extract the copper fiber with a length of 5 mm with chloroform for 40 hours to remove impurities on its surface, wash it with deionized water and dry it under room temperature for 10 hours, and mix DMF, DMAP and polyethylene glycol evenly to obtain a bonded fiber Branch liquid, the weight ratio of copper fiber, DMF, DMAP, polyethylene glycol is 100:2:1:9, the copper fiber after drying is put into grafting liquid, is placed in gamma ray irradiation source heating reaction 3 After taking it out, wash it 3 times with acetone, place it in a vacuum oven and dry it at room temperature for 10 hours to obtain grafted copper fibers;

[0036] (2) adding the grafted copper fiber and PP resin obtained in the step (1) with a weight ratio of 2:3 to a twin-screw extruder and extruding for 40 minutes, the screw speed of the twin-screw extruder was 500rpm, and the obtained pellets...

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Abstract

The invention provides a preparation method of novel PP (polypropylene) composition for packing belts. The method comprises steps as follows: (1) extracting copper fibers with chloroform to remove impurities on surfaces of the copper fibers, after washing the copper fibers with deionized water, performing air-blast drying at the room temperature, evenly mixing DMF (dimethylformamide), DMAP (dimethylaminopyridine) and polyethylene glycol to obtain a grafting liquid, placing dried copper fibers into the grafting liquid, placing the mixture under a gamma ray irradiation source for heating for a reaction, taking out the copper fibers, washing the copper fibers with acetone, placing the copper fibers in a vacuum drying oven for drying at the room temperature, and obtaining grafted copper fibers; (2) adding the grafted copper fibers obtained in Step (1) and PP resin to a twin-screw extruder for extrusion, placing obtained granules into a drying oven for drying, and obtaining copper fiber master batch; (3) adding the PP resin, CTBN (carboxyl-terminated butadieneacrylonitrile) and the copper fiber master batch obtained in Step (2) to an open mill for melt-mixing, transferring the mixture to a hot-press forming machine for hot-press forming, placing the mixture in the vacuum drying oven for drying, and obtaining the PP composition for the packing belts. The PP composition prepared with the method is better in plasticity and toughness and longer in service life.

Description

Technical field: [0001] The invention relates to a packaging material, in particular to a preparation method of a PP composition used for a packing tape. Background technique: [0002] Packing tape, also known as strapping tape, is a common packaging material. Packing belts can be bundled by hand or by machine, easy to use, low cost, and can be made into red, white, blue, yellow, green and other colors, and different grades of goods can be bundled according to the color, so that it is easy to distinguish the grade of the goods and improve delivery efficiency , in addition to being used for sealing and bundling of corrugated boxes, it can also be used for bundling materials, fruits, etc. PP packing belt is one of the packing belts. Its appearance is a translucent to opaque transparent film. It has strong adhesion, high pulling force, light weight and corrosion resistance. It is suitable for various packing belt machines in all walks of life. However, the plasticity and toug...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L13/00C08K9/04C08K7/06C08J3/22B29C47/92B29C51/46B29C48/92
CPCB29C48/92B29C51/46B29C2948/92085C08J3/226C08J2323/12C08J2423/12C08K2201/004C08L23/12C08L2203/30C08L2205/025C08L2205/03C08L13/00C08K9/08C08K7/06
Inventor 王宏城
Owner 佛山市环购新材料科技有限公司