WO2022194181A1

WO2022194181A1 - Ionic antistatic polyethylene graft and preparation method therefor

Info

Publication number: WO2022194181A1
Application number: PCT/CN2022/081049
Authority: WO
Inventors: 李煦田; 唐舫成; 温海军; 王伟
Original assignee: 广州鹿山新材料股份有限公司
Priority date: 2021-03-17
Filing date: 2022-03-16
Publication date: 2022-09-22
Also published as: CN113024736A

Abstract

The present disclosure relates to the technical field of antistatic materials, in particular to an ionic antistatic polyethylene graft and a preparation method therefor. The ionic antistatic polyethylene graft is mainly prepared from the following components in parts by weight: 80 to 100 parts of a polyethylene resin, 0.01 to 0.08 parts of an initiator and 0.1 to 2 parts of an ionic liquid, wherein the ionic liquid contains an unsaturated double bond. By means of the present disclosure, an ionic liquid containing an unsaturated double bond, and a polyethylene resin are subjected to molecular chain dehydrogenation under the action of an initiator to generate macromolecular free radicals, such that the ionic liquid containing an unsaturated double bond is grafted onto a polyethylene chain. The obtained ionic antistatic polyethylene graft has the advantages of uniform performance, strong dispersity, etc., and the antistatic performance is continuous and stable.

Description

Ionic antistatic polyethylene graft and preparation method thereof

CROSS-REFERENCE TO RELATED APPLICATIONS

This disclosure claims the priority of the Chinese patent application with the application number "202110284430.0" and the title "Ionic antistatic polyethylene graft and its preparation method" filed with the China Patent Office on March 17, 2021, the entire contents of which are approved by References are incorporated in this disclosure.

technical field

The present disclosure relates to the technical field of antistatic materials, in particular to an ionic antistatic polyethylene graft and a preparation method thereof.

Background technique

Polyethylene (PE) is a very important general-purpose plastic with excellent physical properties and has been widely used in construction, packaging, planting, transportation and other aspects of production and life. Static electricity is caused by friction. With the development of the electronics industry, static electricity brings more and more harm to human beings. For example, static electricity will interfere with the normal operation of radio equipment on the plane and affect safety; static electricity is easy to absorb dust, causing pharmaceutical factories, etc. Pollution in places with high environmental cleanliness requirements; for the human body, the accumulation of static electricity in the human body may affect various diseases and so on. Polyethylene is very easy to generate static electricity. Therefore, in order to further expand its application field and improve application performance, it is very necessary to carry out antistatic modification of polyethylene.

In the antistatic modification of polyethylene, physical blending is mainly used, but due to the poor compatibility of the blended materials with polyethylene, the continuous stability of antistatic properties cannot be guaranteed. Or adopt the means of graft modification to prepare antistatic masterbatch, but this method has complicated process, many steps, and low production efficiency, which is not conducive to industrialized large-scale production, and the block-graft copolymer prepared by this method has the same phase as polyethylene. Poor tolerance, etc.

SUMMARY OF THE INVENTION

The present disclosure provides an ionic antistatic polyethylene graft, which is mainly prepared from the following components in parts by weight:

80-100 parts of polyethylene resin, 0.01-0.08 parts of initiator and 0.1-2 parts of ionic liquid;

The ionic liquid contains unsaturated double bonds.

In some embodiments of the present disclosure, the structural formula of the ionic liquid is as follows:

Wherein, R ₁ is selected from any one of alkyl groups having 2 to 8 carbon atoms; R ₂ is selected from any one of H and methyl.

In some embodiments of the present disclosure, R ₂ is H.

In some embodiments of the present disclosure, R ₁ is any one of ethyl, butyl, and octyl.

In some embodiments of the present disclosure, the polyethylene resin includes any one or more of LDPE resin, LLDPE resin, and HDPE resin.

In some embodiments of the present disclosure, the polyethylene resin has a melt index of 1-8 g/10min.

In some embodiments of the present disclosure, the initiator includes a peroxide initiator.

In some embodiments of the present disclosure, in some embodiments, the peroxide initiator includes dicumyl peroxide, di-tert-butyl peroxide, benzoyl peroxide, dichlorobenzene peroxide Formyl, tert-butyl peroxylaurate, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, bis(tert-butylperoxyisopropyl)benzene, tert-butylisopropyl Any one or more of phenyl peroxide, t-butyl peroxybenzoate, and t-butyl peroxyacetate.

In some embodiments of the present disclosure, the ionic antistatic polyethylene graft is mainly prepared from the following components in parts by weight:

90-100 parts of polyethylene resin, 0.02-0.06 parts of initiator and 0.5-1.5 parts of ionic liquid.

95-100 parts of polyethylene resin, 0.03-0.05 parts of initiator and 0.8-1.2 parts of ionic liquid.

The present disclosure also provides a method for preparing the ionic antistatic polyethylene graft, comprising the following steps:

Polyethylene resin and ionic liquid undergo a melt-grafting reaction under the action of an initiator.

In some embodiments of the present disclosure, the temperature of the melt-grafting reaction is 130-200°C. In some embodiments of the present disclosure, the melt grafting reaction includes a mixing section, a grafting section and a termination section; the temperature of the mixing section is 130-180°C, and the temperature of the grafting section is 170-200°C , the temperature of the termination section is 180-200°C.

In some embodiments of the present disclosure, the temperature of the mixing section is 130-150°C.

In some embodiments of the present disclosure, the preparation method further comprises:

The polyethylene resin, the ionic liquid and the initiator are mixed for 2-10 minutes under a stirring condition of 500-1500 r/min to obtain a mixture and carry out a melt-grafting reaction.

In some embodiments of the present disclosure, the melt grafting reaction is performed using a twin-screw extruder or a single-screw extruder.

In some embodiments of the present disclosure, the screw length-diameter ratio of the single-screw extruder is (20-40): 1; the screw diameter of the single-screw extruder is 60-120 mm, and the screw rotational speed is 150-150 mm. 500rpm.

In some embodiments of the present disclosure, the screw length-diameter ratio of the twin-screw extruder is (28-40): 1; the screw diameter of the twin-screw extruder is 35-75 mm, and the screw rotation speed is 150- 500rpm.

In some embodiments of the present disclosure, extrusion pelletization is performed after the melt grafting reaction.

The present disclosure also provides the use of the ionic antistatic polyethylene graft in the fields of construction, packaging, planting, transportation, and electronic products.

Detailed ways

The technical solutions of the present disclosure will be clearly and completely described below with reference to the specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the present disclosure, not all of the embodiments, and are only used for This disclosure is illustrated and should not be considered to limit the scope of the disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure. If the specific conditions are not indicated in the examples, it is carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments used without the manufacturer's indication are conventional products that can be purchased from the market. Some embodiments of the present disclosure provide ionic antistatic polyethylene grafts, which are mainly prepared from the following components in parts by weight:

Ionic liquids contain unsaturated double bonds.

The polyethylene resin of the present disclosure dehydrogenates the molecular chain under the action of the initiator to generate macromolecular free radicals, and reacts with the ionic liquid containing unsaturated double bonds, so that the ionic liquid is grafted on the polyethylene molecular chain, which greatly improves the performance of the polyethylene resin. Antistatic properties of polyethylene. In addition, the polyethylene grafts combined with ionic liquids by grafting have uniform performance, strong dispersibility, no problems such as poor compatibility and surface precipitation, and can continue to have stable antistatic properties.

The ionic antistatic polyethylene graft of the present disclosure has a high graft ratio of ionic liquid groups, excellent antistatic performance and stability, greatly improves the quality of the product, and broadens the use range of the product.

As in different embodiments, the polyethylene resin may be used in an amount of 85-100 parts, 87-100 parts, or 92-100 parts, such as 80 parts, 82 parts, 84 parts, 86 parts, 88 parts, 90 parts, 92 parts , 94 parts, 96 parts, 98 parts, 100 parts, etc; part, 0.06 part, 0.07 part, 0.08 part, etc.; the amount of ionic liquid can be 0.5-2 part, 0.8-1.5 part or 1.0-1.5 part, such as 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, etc.

The present disclosure adopts the polyethylene resin, the initiator and the ionic liquid in the above proportions, which can ensure the grafting rate of the ionic liquid on the polyethylene molecular chain, realize the antistatic effect, and at the same time prevent the residual ionic liquid monomer from affecting the antistatic stability of the material, etc. .

In some embodiments of the present disclosure, R ₂ is H.

In some embodiments of the present disclosure, R ₁ may be any one of ethyl, propyl, butyl, pentyl, hexyl, heptyl, and octyl.

In some embodiments of the present disclosure, the preparation method of ionic liquid includes the following steps:

After compound A and compound B are reacted in the presence of a solvent at 80-90° C., liquid separation is performed and the ionic liquid in the viscous layer is separated, and then the ionic liquid in the viscous layer is dried;

Wherein, the structural formulas of compound A and compound B are respectively as follows:

R ₂ -Br (B).

After compound A and compound B are reacted in the presence of a solvent at 80-90° C., the ionic liquid in the viscous layer is separated with a separating funnel and then dried;

The structural formulas of compound A and compound B are respectively as follows:

R ₂ -Br (B).

In some embodiments of the present disclosure, the reaction time is 15-25 h.

In some embodiments of the present disclosure, the solvent is ethyl acetate. In some embodiments, the mass ratio of solvent to compound A is (3-7):1.

In some embodiments of the present disclosure, the molar ratio of Compound A to Compound B is 1:(1.2-3). In some embodiments, the molar ratio of Compound A to Compound B is 1:(1.3-2.5).

In some embodiments of the present disclosure, compound A is 1-vinylimidazole and compound B is 1-bromobutane (ie, bromo-n-butane).

In some embodiments of the present disclosure, the drying temperature is 40-80°C. In some embodiments, it can be dried at 40-80°C.

In actual operation, the raw material form of polyethylene resin may be pellets and/or powders, but not limited thereto.

In some embodiments of the present disclosure, the polyethylene resin has a melt index of 1-8 g/10min (190°C/2.16kg). In some embodiments, the polyethylene resin has a melt index of 2-7 g/10min (190°C/2.16kg).

In some embodiments of the present disclosure, the initiator includes a peroxide initiator. In some embodiments, the peroxide initiator includes dicumyl peroxide, di-tert-butyl peroxide, benzoyl peroxide, dichlorobenzoyl peroxide, tert-butyl peroxylaurate, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, bis(tert-butylperoxyisopropyl)benzene, tert-butylcumyl peroxide, tert-butylperoxybenzoic acid Any one or more of butyl ester and tert-butyl peroxyacetate. In some embodiments, the initiator includes at least one of dicumyl peroxide, di-tert-butyl peroxide, and 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane kind.

In some embodiments of the present disclosure, the temperature of the melt-grafting reaction is 130-200°C.

In some embodiments of the present disclosure, the polyethylene resin, the ionic liquid and the initiator are mixed for 2-10 minutes under a stirring condition of 500-1500 r/min, and the obtained mixture undergoes a melt-grafting reaction.

In some embodiments of the present disclosure, the melt-grafting reaction includes a mixing section, a grafting section and a termination section; the temperature of the mixing section is 130-180 °C, the temperature of the grafting section is 170-200 °C, and the temperature of the termination section is 180～200℃.

In some embodiments of the present disclosure, a twin-screw extruder or a single-screw extruder is employed for the melt grafting reaction.

In some embodiments of the present disclosure, the screw length-diameter ratio of the single-screw extruder is (20-40): 1; the screw diameter of the single-screw extruder is 60-120 mm, and the screw speed is 150-500 rpm; the twin-screw extruder has a screw diameter of 60-120 mm. The screw length-diameter ratio of the extruder is (28-40):1; the screw diameter of the twin-screw extruder is 35-75 mm, and the screw speed is 150-500 rpm.

In some embodiments of the present disclosure, the ionic liquid used is

Its preparation method can be:

Measure 250mL of ethyl acetate into a 500mL round-bottomed flask, heat it to 80-90°C with an oil bath, weigh 50g of 1-vinylimidazole and dissolve it in ethyl acetate, then add 125g of 1-bromobutane After the reaction was completed, the ionic liquid in the viscous layer was separated and treated with a separatory funnel, and dried in an oven at 60 °C.

The ionic antistatic polyethylene graft provided by the present disclosure solves the technical problems such as poor antistatic properties of polyethylene in the prior art. The preparation method of the ionic antistatic polyethylene graft provided by the present disclosure is simple to operate. Compared with the prior art, the present disclosure has the following beneficial effects:

(1) The present disclosure adopts an ionic liquid containing unsaturated double bonds. Under the action of an initiator, the polyethylene resin dehydrogenates the molecular chain to generate macromolecular free radicals, so that the ionic liquid containing unsaturated double bonds is grafted on the polyethylene chain. Therefore, the obtained ionic antistatic polyethylene graft has the advantages of uniform performance and strong dispersibility.

(2) The preparation method of the present disclosure can ensure a higher graft ratio in the ionic antistatic polyethylene graft, and at the same time can effectively reduce the volatile matter in the polyethylene melt grafting process, which is beneficial to improve the quality; and , the preparation method of the present disclosure can be mass-produced.

In order to facilitate the understanding of those skilled in the art, the technical implementations provided by the present disclosure will be further described below with reference to the examples and comparative examples.

Example

The ionic liquids used in the following Examples 1-4 are all derived from the ionic liquids prepared by this method.

The ionic liquid used is

Its preparation method can be:

Example 1

The present embodiment provides a method for preparing an ionic antistatic polyethylene graft, comprising the following steps:

(1) Take 100 parts by weight of LDPE resin raw materials (melt index is 3.5g/10min, and the test condition is 190°C/2.16kg), 1 part by weight of ionic liquid and 0.04 part by weight of 2,5-dimethyl-2,5- Di(tert-butylperoxy)hexane was stirred and mixed in a mixer for 5min at a stirring speed of 1000r/min to obtain a uniformly mixed material.

(2) Throwing the uniformly mixed material obtained in step (1) into a twin-screw extruder to carry out melt grafting reaction and extrusion granulation to obtain an ionic antistatic polyethylene graft. Among them, the screw diameter of the twin-screw extruder is 65mm, the length-diameter ratio is 40:1, the screw speed is 300rpm, and the 8 temperature zones of the twin-screw extruder are: 80°C, 130°C, 150°C, 180°C, 190°C, 190°C, 190°C, 190°C.

Example 2

(1) Take 100 parts by weight of LLDPE resin raw materials (melt index is 2g/10min, test condition is 190°C/2.16kg), 1 part by weight of ionic liquid and 0.04 part by weight of 2,5-dimethyl-2,5-dimethy (tert-butyl peroxide) hexane was stirred and mixed in a mixer at a stirring speed of 1000 r/min for 5 min to obtain a uniformly mixed material.

Example 3

(1) Take 100 parts by weight of HDPE resin raw material (melt index is 7g/10min, test condition is 190°C/2.16kg), 1 part by weight of ionic liquid and 0.04 part by weight of 2,5-dimethyl-2,5-dimethy (tert-butyl peroxide) hexane was stirred and mixed in a mixer at a stirring speed of 1000 r/min for 5 min to obtain a uniformly mixed material.

Example 4

(1) Take 50 parts by weight of LDPE resin raw materials (melt index is 2g/10min, test condition is 190°C/2.16kg), 50 parts by weight of LLDPE resin raw material (melt index is 3.5g/10min, test condition is 190°C/2.16 kg), 1 part by weight of ionic liquid and 0.04 part by weight of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane were mixed in a mixer for 5min at a stirring speed of 1000r/min , to obtain a uniformly mixed material.

Comparative Example 1

Comparative example 1 provides the preparation method of modified polyethylene, comprising the following steps:

(1) Take 100 parts by weight of LDPE resin raw materials (melt index is 3.5g/10min, and the test condition is 190°C/2.16kg) and 0.04 parts by weight of 2,5-dimethyl-2,5-bis(tert-butyl peroxide) (oxidation) hexane was stirred and mixed for 5 min at a stirring speed of 1000 r/min in a mixer to obtain a uniformly mixed material.

(2) The uniformly mixed material obtained in step (1) is put into a twin-screw extruder for extrusion and granulation to obtain modified polyethylene. Among them, the screw diameter of the twin-screw extruder is 65mm, the length-diameter ratio is 40:1, the screw speed is 300rpm, and the 8 temperature zones of the twin-screw extruder are: 80°C, 130°C, 150°C, 180°C, 190°C, 190°C, 190°C, 190°C.

Comparative Example 2

Comparative example 2 provides the preparation method of modified polyethylene, comprising the steps:

(1) Take 100 parts by weight of LLDPE resin raw materials (melt index is 2g/10min, test condition is 190°C/2.16kg) and 0.04 parts by weight of 2,5-dimethyl-2,5-bis(tert-butyl peroxide) ) hexane in the mixer, and stirred and mixed for 5 min at a stirring speed of 1000 r/min to obtain a uniformly mixed material.

Comparative Example 3

Comparative example 3 provides the preparation method of modified polyethylene, comprising the steps:

(1) Take 100 parts by weight of HDPE resin raw materials (melt index is 7g/10min, test condition is 190°C/2.16kg) and 0.04 parts by weight of 2,5-dimethyl-2,5-bis(tert-butyl peroxide) ) hexane in the mixer, and stirred and mixed for 5 min at a stirring speed of 1000 r/min to obtain a uniformly mixed material.

Comparative Example 4

Comparative example 4 provides the preparation method of modified polyethylene, comprises the steps:

(1) Take 50 parts by weight of LDPE resin raw materials (melt index is 2g/10min, test condition is 190°C/2.16kg), 50 parts by weight of LLDPE resin raw material (melt index is 3.5g/10min, test condition is 190°C/2.16 kg) and 0.04 parts by weight of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane in a mixer, stirring and mixing for 5min at a stirring speed of 1000r/min to obtain a uniformly mixed material .

(2) The homogeneously mixed material obtained in step (1) is put into a twin-screw extruder for extrusion granulation to obtain modified polyethylene. Among them, the screw diameter of the twin-screw extruder is 65mm, the length-diameter ratio is 40:1, the screw speed is 300rpm, and the 8 temperature zones of the twin-screw extruder are: 80°C, 130°C, 150°C, 180°C, 190°C, 190°C, 190°C, 190°C.

Comparative Example 5

Comparative example 5 provides the preparation method of modified polyethylene, comprising the steps:

(1) Take 50 parts by weight of LDPE resin raw materials (melt index is 2g/10min, test condition is 190°C/2.16kg), 50 parts by weight of LLDPE resin raw material (melt index is 3.5g/10min, test condition is 190°C/2.16 kg) and 1 part by weight of ionic liquid in a mixer, stirring and mixing for 5 min at a stirring speed of 1000 r/min to obtain a uniformly mixed material.

(2) The uniformly mixed material obtained in step (1) is put into a twin-screw extruder for melt extrusion and granulation to obtain modified polyethylene. Among them, the screw diameter of the twin-screw extruder is 65mm, the length-diameter ratio is 40:1, the screw speed is 300rpm, and the 8 temperature zones of the twin-screw extruder are: 80°C, 130°C, 150°C, 180°C, 190°C, 190°C, 190°C, 190°C.

Experimental example 1

In order to compare and illustrate the antistatic properties of each polyethylene product, the surface resistances of the polyethylene products obtained in different examples and comparative examples were tested, and the test results are shown in Table 1.

Test method: The surface resistance is measured according to GB1410.

Table 1 Surface resistance test results of different polyethylene products

It can be seen from the above table that the ionic antistatic polyethylene graft of the present disclosure has lower surface resistance and better antistatic property.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, but not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present disclosure. scope.

Industrial Applicability

The ionic antistatic polyethylene graft provided by the present disclosure allows the ionic liquid containing unsaturated double bonds to be grafted on the polyethylene chain, so that the obtained ionic antistatic polyethylene graft has uniform performance, strong dispersibility, etc. advantage. At the same time, the preparation method provided by the present disclosure can ensure that the ionic antistatic polyethylene graft has a higher grafting rate, and at the same time can effectively reduce the volatile matter in the polyethylene melt grafting process, which is beneficial to improve the quality; and, The preparation method of the present disclosure can be mass-produced. Therefore, the ionic antistatic polyethylene graft and the preparation method thereof provided by the present disclosure have excellent application value and broad market prospect.

Claims

The ionic antistatic polyethylene graft is characterized in that it is mainly prepared from the following components in parts by weight:

80-100 parts of polyethylene resin, 0.01-0.08 parts of initiator and 0.1-2 parts of ionic liquid;

The ionic liquid contains unsaturated double bonds.
The ionic antistatic polyethylene graft according to claim 1, wherein the structural formula of the ionic liquid is as follows:

Wherein, R 1 is selected from any one of alkyl groups having 2 to 8 carbon atoms; R 2 is selected from any one of H and methyl.
The ionic antistatic polyethylene graft according to claim 2 , wherein R is H;

Preferably, R 1 is any one of ethyl, butyl and octyl.
The ionic antistatic polyethylene graft according to any one of claims 1-3, wherein the polyethylene resin comprises any one or more of LDPE resin, LLDPE resin and HDPE resin;

Preferably, the melt index of the polyethylene resin is 1-8 g/10min.
The ionic antistatic polyethylene graft according to any one of claims 1-4, wherein the initiator comprises a peroxide initiator;

Preferably, the peroxide initiator includes dicumyl peroxide, di-tert-butyl peroxide, benzoyl peroxide, dichlorobenzoyl peroxide, tert-butyl peroxylaurate, 2 ,5-dimethyl-2,5-di(tert-butylperoxy)hexane, bis(tert-butylperoxyisopropyl)benzene, tert-butylcumyl peroxide, tert-butylperoxybenzoate Any one or more of esters and tert-butyl peroxyacetate.
The ionic antistatic polyethylene graft according to any one of claims 1-5 is characterized in that, it is mainly prepared from the following components in parts by weight:

90-100 parts of polyethylene resin, 0.02-0.06 parts of initiator and 0.5-1.5 parts of ionic liquid;

Preferably, it is mainly prepared from the following components in parts by weight:

95-100 parts of polyethylene resin, 0.03-0.05 parts of initiator and 0.8-1.2 parts of ionic liquid.
The preparation method of the ionic antistatic polyethylene graft according to any one of claims 1-6, characterized in that, comprising the steps:

Polyethylene resin and ionic liquid undergo a melt-grafting reaction under the action of an initiator.
The method for preparing an ionic antistatic polyethylene graft according to claim 7, wherein the temperature of the melt grafting reaction is 130-200°C.
The method for preparing an ionic antistatic polyethylene graft according to claim 7 or 8, wherein the melt grafting reaction comprises a mixing section, a grafting section and a termination section; the temperature of the mixing section is 130-180°C, the temperature of the grafting section is 170-200°C, and the temperature of the termination section is 180-200°C;

Preferably, the temperature of the mixing section is 130-150°C.
The preparation method of the ionic antistatic polyethylene graft according to any one of claims 7-9, wherein the preparation method further comprises:

The polyethylene resin, the ionic liquid and the initiator are mixed for 2-10 minutes under a stirring condition of 500-1500 r/min to obtain a mixture and carry out a melt-grafting reaction.
The method for preparing an ionic antistatic polyethylene graft according to any one of claims 7-10, wherein the melt grafting reaction is carried out using a twin-screw extruder or a single-screw extruder;

Preferably, the screw length-diameter ratio of the single-screw extruder is (20-40): 1; the screw diameter of the single-screw extruder is 60-120 mm, and the screw speed is 150-500 rpm;

Preferably, the screw length-diameter ratio of the twin-screw extruder is (28-40): 1; the screw diameter of the twin-screw extruder is 35-75mm, and the screw speed is 150-500rpm.
The method for preparing an ionic antistatic polyethylene graft according to any one of claims 7-11, characterized in that, after the melt grafting reaction, extrusion granulation is performed.
Use of the ionic antistatic polyethylene graft according to any one of claims 1 to 6 in the fields of construction, packaging, planting, transportation, and electronic products.