High-smoothness PP and PE extinction master batch and preparation method and application thereof

Abstract

The invention provides a high-smoothness PP and PE extinction master batch and a preparation method and application thereof. The preparation method comprises the following steps: firstly, carrying outprimary blending, extrusion and granulation on polypropylene, a delustering agent and a slipping agent thereby obtaining modified polypropylene, and then carrying out secondary blending, extrusion and granulation on the modified polypropylene, polyethylene and coupling agent to obtain the high-smoothness PP and PE extinction master batch. According to the technical key point, the PP and PE extinction master batch with high smoothness is obtained by adjusting the proportion relation of the PP and the PE and improving the extinction agent and the slipping agent, and the obtained product has extinction property and smoothness and has excellent market popularization value.

Description

technical field

[0001] The invention relates to the technical field of plastic processing, in particular to a high smoothness PP and PE matting masterbatch, a preparation method and an application. Background technique

[0002] Plastic film is a very important flexible packaging material in today's society. With the development of society and the improvement of economic level, people's requirements for packaging materials are getting higher and higher. People expect packaging materials to have better hand feeling and visual effects, and smoothness And extinction are the two important technical indicators corresponding to it.

[0003] At present, there are some matting film products on the market. This is a packaging film with high haze and low gloss, and the surface can form a diffuse reflection matting effect. The surface reflection light is weak and soft. Patent application CN107082931A discloses a matting masterbatch for CPP film, which is made of polypropylene, polyethy...

Examples

Embodiment 1

[0033] A preparation method of high smoothness PP and PE matting masterbatch, first blending and extruding 20kg polypropylene with 0.3kg matting agent and 1kg smoothing agent for the first time to obtain modified polypropylene, and then Modified polypropylene, 65kg polyethylene, and 0.3kg coupling agent are blended and extruded for the second time to obtain a high smoothness PP and PE matt masterbatch; wherein, the matting agent is obtained by the following method Prepared:

[0034] (A) Soak the polyethersulfone resin in the Sphingomonas bacteria liquid, ferment and modify it, and centrifuge to obtain the modified polyethersulfone resin;

[0035] (B) Slowly add tetraethyl orthosilicate dropwise into the hydrochloric acid solution with pH=4, stir evenly, heat up to 65°C, stir at 500r / min for 18 hours, then add the modified polyethersulfone resin obtained in step (A), Stir at 1200r / min for 5 hours to obtain a gel, and post-process to obtain the matting agent;

[0036] The slip...

Embodiment 2

[0047] A preparation method of high smoothness PP and PE matting masterbatch. First, 25kg polypropylene, 0.2kg matting agent and 2kg smoothing agent are blended and extruded for the first time to obtain modified polypropylene, and then Modified polypropylene, 50kg polyethylene, and 0.4kg coupling agent are blended and extruded for the second time to obtain a high smoothness PP and PE matt masterbatch; wherein, the matting agent is obtained by the following method Prepared:

[0048] (A) Soak the polyethersulfone resin in the Sphingomonas bacteria liquid, ferment and modify it, and centrifuge to obtain the modified polyethersulfone resin;

[0049] (B) Slowly add tetraethyl orthosilicate dropwise into the hydrochloric acid solution with pH=3, stir evenly, heat up to 75°C, stir at 300r / min for 20 hours, then add the modified polyethersulfone resin obtained in step (A), Stir at 1000r / min for 8 hours to obtain a gel, and post-process to obtain the matting agent;

[0050] The slip ...

Embodiment 3

[0061] A preparation method of high smoothness PP and PE matting masterbatch, first blending and extruding 22kg polypropylene with 0.25kg matting agent and 1.5kg smoothing agent to obtain modified polypropylene, and then Modified polypropylene, 60kg polyethylene, and 0.35kg coupling agent are blended and extruded for the second time to obtain a high smoothness PP and PE matt masterbatch; wherein, the matting agent is obtained through the following steps: Prepared by the method:

[0062] (A) Soak the polyethersulfone resin in the Sphingomonas bacteria liquid, ferment and modify it, and centrifuge to obtain the modified polyethersulfone resin;

[0063] (B) Slowly add ethyl orthosilicate dropwise into the hydrochloric acid solution with pH = 4, stir evenly, heat up to 70°C, stir at 400r / min for 19 hours, then add the modified polyethersulfone resin obtained in step (A), Stir at 1100r / min for 6 hours to obtain a gel, and post-process to obtain the matting agent;

[0064] The sli...

technical field

[0001] The invention relates to the technical field of plastic processing, in particular to a high smoothness PP and PE matting masterbatch, a preparation method and an application. Background technique

[0002] Plastic film is a very important flexible packaging material in today's society. With the development of society and the improvement of economic level, people's requirements for packaging materials are getting higher and higher. People expect packaging materials to have better hand feeling and visual effects, and smoothness And extinction are the two important technical indicators corresponding to it.

[0003] At present, there are some matting film products on the market. This is a packaging film with high haze and low gloss, and the surface can form a diffuse reflection matting effect. The surface reflection light is weak and soft. Patent application CN107082931A discloses a matting masterbatch for CPP film, which is made of polypropylene, polyethy...

Examples

Embodiment 1

[0033] A preparation method of high smoothness PP and PE matting masterbatch, first blending and extruding 20kg polypropylene with 0.3kg matting agent and 1kg smoothing agent for the first time to obtain modified polypropylene, and then Modified polypropylene, 65kg polyethylene, and 0.3kg coupling agent are blended and extruded for the second time to obtain a high smoothness PP and PE matt masterbatch; wherein, the matting agent is obtained by the following method Prepared:

[0034] (A) Soak the polyethersulfone resin in the Sphingomonas bacteria liquid, ferment and modify it, and centrifuge to obtain the modified polyethersulfone resin;

[0035] (B) Slowly add tetraethyl orthosilicate dropwise into the hydrochloric acid solution with pH=4, stir evenly, heat up to 65°C, stir at 500r / min for 18 hours, then add the modified polyethersulfone resin obtained in step (A), Stir at 1200r / min for 5 hours to obtain a gel, and post-process to obtain the matting agent;

[0036] The slip...

Embodiment 2

[0047] A preparation method of high smoothness PP and PE matting masterbatch. First, 25kg polypropylene, 0.2kg matting agent and 2kg smoothing agent are blended and extruded for the first time to obtain modified polypropylene, and then Modified polypropylene, 50kg polyethylene, and 0.4kg coupling agent are blended and extruded for the second time to obtain a high smoothness PP and PE matt masterbatch; wherein, the matting agent is obtained by the following method Prepared:

[0048] (A) Soak the polyethersulfone resin in the Sphingomonas bacteria liquid, ferment and modify it, and centrifuge to obtain the modified polyethersulfone resin;

[0049] (B) Slowly add tetraethyl orthosilicate dropwise into the hydrochloric acid solution with pH=3, stir evenly, heat up to 75°C, stir at 300r / min for 20 hours, then add the modified polyethersulfone resin obtained in step (A), Stir at 1000r / min for 8 hours to obtain a gel, and post-process to obtain the matting agent;

[0050] The slip ...

Embodiment 3

[0061] A preparation method of high smoothness PP and PE matting masterbatch, first blending and extruding 22kg polypropylene with 0.25kg matting agent and 1.5kg smoothing agent to obtain modified polypropylene, and then Modified polypropylene, 60kg polyethylene, and 0.35kg coupling agent are blended and extruded for the second time to obtain a high smoothness PP and PE matt masterbatch; wherein, the matting agent is obtained through the following steps: Prepared by the method:

[0062] (A) Soak the polyethersulfone resin in the Sphingomonas bacteria liquid, ferment and modify it, and centrifuge to obtain the modified polyethersulfone resin;

[0063] (B) Slowly add ethyl orthosilicate dropwise into the hydrochloric acid solution with pH = 4, stir evenly, heat up to 70°C, stir at 400r / min for 19 hours, then add the modified polyethersulfone resin obtained in step (A), Stir at 1100r / min for 6 hours to obtain a gel, and post-process to obtain the matting agent;

[0064] The sli...