Preparation method of ultra-high molecular weight PE (Polyethylene) film

Abstract

The invention provides a preparation method of an ultra-high molecular weight PE (Polyethylene) film, the ultra-high molecular weight PE film is prepared from the following raw materials by weight: 60-70 parts of ultra-high molecular weight polyethylene, 20-30 parts of high density polyethylene, 6-8 parts of flow modifier, 2-4 parts of xylene solution and 0.2-1 part of nucleating agent, the high density polyethylene, the flow modifier and the nucleating agent are added into the cooled ultra-high molecular weight polyethylene, the mixture is intermittently stirred under the condition of 30 DEGC to obtain an ultra-high molecular weight polyethylene mixture, the ultra-high molecular weight polyethylene mixture is added into the xylene solution, stirred and reacted to generate a high-concentration ultra-high molecular weight polyethylene casting solution. By adding the flow modifier and the nucleating agent, the characteristic of energy transfer between macromolecular chains is changed effectively according to the fact that the flow modifier has the effects of promoting the untwisting of long-chain molecules and lubricating the macromolecules, the flowability of the polymer is effectively improved, and the flowability of the ultra-high molecular weight polyethylene is obviously improved.

Description

technical field

[0001] The invention relates to the technical field of ultra-high molecular weight PE film, in particular to a preparation method of ultra-high molecular weight PE film. Background technique

[0002] A membrane is a discontinuity between two phases, with a thickness ranging from a few micrometers to a few millimeters, that acts as a barrier for the selective transfer of substances. Most of the membranes are solid membranes, no matter in terms of output, variety, function or application, solid membranes account for more than 99%, especially organic polymer membrane materials. Ultra-high molecular weight polyethylene film is a film material of a certain thickness made of a polymer matrix.

[0003] However, ultra-high molecular weight polyethylene is a kind of polymer compound, which has the characteristics of super wear resistance, self-lubrication, relatively high strength, stable chemical properties, and strong anti-aging performance, but it is difficult to ...

Examples

Embodiment 1

[0022] A preparation method of ultra-high molecular weight PE film, which is made according to the following raw materials in parts by weight: 60 parts of ultra-high molecular weight polyethylene, 30 parts of high-density polyethylene, 8 parts of flow modifier, 2 parts of xylene solution, nucleation 1 dose.

[0023] Both the ultra-high molecular weight polyethylene and the high-density polyethylene are in powder state.

[0024] The molecular weight of the high-density polyethylene is 5000-12000.

[0025] The flow modifier is a high-impact polystyrene flow agent with a density of 800-1200Kg / m 3 .

[0026] The concentration of the xylene solution is 0.5%-0.7%.

[0027] The nucleating agent is wollastonite, its particle size ranges from 5nm to 50nm, and its surface area is 100m 2 / g-400m 2 / g.

[0028] Based on the preparation method of above-mentioned a kind of ultra-high molecular weight PE film, comprise the following steps:

[0029] S1: First take a certain amount of u...

Embodiment 2

[0035] A preparation method of ultra-high molecular weight PE film, which is made according to the following raw materials in parts by weight: 65 parts of ultra-high molecular weight polyethylene, 250 parts of high-density polyethylene, 7 parts of flow modifier, 3 parts of xylene solution, nucleation 0.5 parts of the agent.

[0036] Both the ultra-high molecular weight polyethylene and the high-density polyethylene are in powder state.

[0037] The molecular weight of the high-density polyethylene is 5000-12000.

[0038] The flow modifier is a high-impact polystyrene flow agent with a density of 800-1200Kg / m 3 .

[0039] The concentration of the xylene solution is 0.5%-0.7%.

[0040] The nucleating agent is wollastonite, its particle size ranges from 5nm to 50nm, and its surface area is 100m 2 / g-400m 2 / g.

[0041] Based on the preparation method of above-mentioned a kind of ultra-high molecular weight PE film, comprise the following steps:

[0042] S1: First take a ce...

Embodiment 3

[0048] A preparation method of ultra-high molecular weight PE film, which is made according to the following raw materials in parts by weight, 70 parts of ultra-high molecular weight polyethylene, 20 parts of high-density polyethylene, 6 parts of flow modifier, 4 parts of xylene solution, nucleation 0.2 parts of the agent.

[0049] Both the ultra-high molecular weight polyethylene and the high-density polyethylene are in powder state.

[0050] The molecular weight of the high-density polyethylene is 5000-12000.

[0051] The flow modifier is a high-impact polystyrene flow agent with a density of 800-1200Kg / m 3 .

[0052] The concentration of the xylene solution is 0.5%-0.7%.

[0053] The nucleating agent is wollastonite, its particle size ranges from 5nm to 50nm, and its surface area is 100m 2 / g-400m 2 / g.

[0054]Based on the preparation method of above-mentioned a kind of ultra-high molecular weight PE film, comprise the following steps:

[0055] S1: First take a cert...

technical field

[0001] The invention relates to the technical field of ultra-high molecular weight PE film, in particular to a preparation method of ultra-high molecular weight PE film. Background technique

[0002] A membrane is a discontinuity between two phases, with a thickness ranging from a few micrometers to a few millimeters, that acts as a barrier for the selective transfer of substances. Most of the membranes are solid membranes, no matter in terms of output, variety, function or application, solid membranes account for more than 99%, especially organic polymer membrane materials. Ultra-high molecular weight polyethylene film is a film material of a certain thickness made of a polymer matrix.

[0003] However, ultra-high molecular weight polyethylene is a kind of polymer compound, which has the characteristics of super wear resistance, self-lubrication, relatively high strength, stable chemical properties, and strong anti-aging performance, but it is difficult to ...

Examples

Embodiment 1

[0022] A preparation method of ultra-high molecular weight PE film, which is made according to the following raw materials in parts by weight: 60 parts of ultra-high molecular weight polyethylene, 30 parts of high-density polyethylene, 8 parts of flow modifier, 2 parts of xylene solution, nucleation 1 dose.

[0023] Both the ultra-high molecular weight polyethylene and the high-density polyethylene are in powder state.

[0024] The molecular weight of the high-density polyethylene is 5000-12000.

[0025] The flow modifier is a high-impact polystyrene flow agent with a density of 800-1200Kg / m 3 .

[0026] The concentration of the xylene solution is 0.5%-0.7%.

[0027] The nucleating agent is wollastonite, its particle size ranges from 5nm to 50nm, and its surface area is 100m 2 / g-400m 2 / g.

[0028] Based on the preparation method of above-mentioned a kind of ultra-high molecular weight PE film, comprise the following steps:

[0029] S1: First take a certain amount of u...

Embodiment 2

[0035] A preparation method of ultra-high molecular weight PE film, which is made according to the following raw materials in parts by weight: 65 parts of ultra-high molecular weight polyethylene, 250 parts of high-density polyethylene, 7 parts of flow modifier, 3 parts of xylene solution, nucleation 0.5 parts of the agent.

[0036] Both the ultra-high molecular weight polyethylene and the high-density polyethylene are in powder state.

[0037] The molecular weight of the high-density polyethylene is 5000-12000.

[0038] The flow modifier is a high-impact polystyrene flow agent with a density of 800-1200Kg / m 3 .

[0039] The concentration of the xylene solution is 0.5%-0.7%.

[0040] The nucleating agent is wollastonite, its particle size ranges from 5nm to 50nm, and its surface area is 100m 2 / g-400m 2 / g.

[0041] Based on the preparation method of above-mentioned a kind of ultra-high molecular weight PE film, comprise the following steps:

[0042] S1: First take a ce...

Embodiment 3

[0048] A preparation method of ultra-high molecular weight PE film, which is made according to the following raw materials in parts by weight, 70 parts of ultra-high molecular weight polyethylene, 20 parts of high-density polyethylene, 6 parts of flow modifier, 4 parts of xylene solution, nucleation 0.2 parts of the agent.

[0049] Both the ultra-high molecular weight polyethylene and the high-density polyethylene are in powder state.

[0050] The molecular weight of the high-density polyethylene is 5000-12000.

[0051] The flow modifier is a high-impact polystyrene flow agent with a density of 800-1200Kg / m 3 .

[0052] The concentration of the xylene solution is 0.5%-0.7%.

[0053] The nucleating agent is wollastonite, its particle size ranges from 5nm to 50nm, and its surface area is 100m 2 / g-400m 2 / g.

[0054]Based on the preparation method of above-mentioned a kind of ultra-high molecular weight PE film, comprise the following steps:

[0055] S1: First take a cert...