阅读说明：本技术 一种应用在pe床垫上的卷包薄膜及制备方法 (Wrapping film applied to PE mattress and preparation method ) 是由 刘玉娟 杨月平 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种应用在PE床垫上的卷包薄膜及制备方法,其中,卷包薄膜按重量计,各原料组份如下：高密度聚乙烯,280-320份；低密度聚乙烯,290-310份；茂金属,90-110份；线性料,140-160份；粘性剂,40-60份；其中,所述高密度聚乙烯的密度范围为0.93-0.94g/cm3,所述低密度聚乙烯的密度范围为0.92-0.93g/cm3,从而使得通过以上配方制造出来的卷包薄膜粘和性强、防爆性能和耐磨性能极佳。(The invention discloses a wrapping film applied to a PE mattress and a preparation method thereof, wherein the wrapping film comprises the following raw materials in parts by weight: high density polyethylene, 280 plus 320 portions; 290 parts of low-density polyethylene and 310 parts of low-density polyethylene; 90-110 parts of metallocene; 140 portions and 160 portions of linear material; 40-60 parts of a viscosity agent; wherein the density of the high density polyethylene ranges from 0.93 to 0.94g/cm3, and the density of the low density polyethylene ranges from 0.92 to 0.93g/cm3, so that the roll-up film prepared by the formula has strong adhesiveness, and excellent explosion-proof performance and wear-resistant performance.)

1. A roll-up film applied to a PE mattress is characterized by comprising the following raw materials in parts by weight:

high density polyethylene, 280 plus 320 portions;

290 parts of low-density polyethylene and 310 parts of low-density polyethylene;

90-110 parts of metallocene;

140 portions and 160 portions of linear material;

40-60 parts of a viscosity agent;

wherein the high density polyethylene has a density in the range of 0.93 to 0.94g/cm3 and the low density polyethylene has a density in the range of 0.92 to 0.93g/cm 3.

2. The wrapping film applied to a PE mattress according to claim 1, wherein the wrapping film comprises the following raw materials by weight:

290 parts of high-density polyethylene;

295 parts of low-density polyethylene;

95 parts of metallocene;

wire material, 148 parts;

45 parts of a viscosity agent;

wherein the high density polyethylene has a density in the range of 0.93 to 0.94g/cm3 and the low density polyethylene has a density in the range of 0.92 to 0.93g/cm 3.

3. The wrapping film applied to a PE mattress according to claim 1, wherein the wrapping film comprises the following raw materials by weight:

300 parts of high-density polyethylene;

300 parts of low-density polyethylene;

100 parts of metallocene;

wire material, 150 parts;

50 parts of adhesive;

wherein the high density polyethylene has a density in the range of 0.93 to 0.94g/cm3 and the low density polyethylene has a density in the range of 0.92 to 0.93g/cm 3.

4. The wrapping film for PE mattress according to claim 1, 2 or 3, wherein the component with density of 0.93g/cm3 in the HDPE is 190-210 parts, and the component with density of 0.94g/cm3 in the HDPE is 90-110 parts.

5. The wrapping film for PE mattress according to claim 4, wherein the HDPE medium density polyethylene composition is 200 parts (by weight) and the HDPE medium density polyethylene composition is 100 parts (by weight) with a density of 0.93g/cm3 and 3.

6. The wrapping film for application on a PE mattress according to claim 4, wherein the high density polyethylene having a density of 0.94g/cm3 is model number 6888.

7. The wrapping film for PE mattresses according to claim 1, 2 or 3, wherein the component of the low-density polyethylene having a density of 0.92g/cm3 is 75-85 parts, and the component of the low-density polyethylene having a density of 0.925g/cm3 is 215-225 parts.

8. The wrap film for application to a PE mattress according to claim 7, wherein the low density polyethylene medium density component of 0.92g/cm3 is 80 parts and the low density polyethylene medium density component of 0.925g/cm3 is 220 parts.

9. The wrapping film for application on a PE mattress according to claim 8, wherein said low density polyethylene having a density of 0.92g/cm3 is type 7050.

10. A method of making a wraparound film according to claims 1 to 9, comprising the steps of:

s1, preparing materials, namely taking 75-85 parts of low-density polyethylene and 40-60 parts of adhesive as a first layer material; taking 280-320 parts of high-density polyethylene and 100-105 parts of low-density polyethylene as second layer materials; taking 120 parts of low-density polyethylene 115-110 parts, metallocene 90-110 parts and linear material 140-160 parts as a third layer material;

s2, mixing and stirring, namely mixing and stirring the first layer material, the second layer material and the third layer material for 20-30 minutes respectively;

s3, extruding, namely, simultaneously feeding the first layer material, the second layer material and the third layer material into an extruder from top to bottom, and extruding under the action of a three-layer extrusion die in the extruder to form a wrapping film;

s4, cold cutting and trimming, namely, cooling and trimming the roll-wrapped film formed in the step S3, wherein the cooling temperature range is as follows: 15 degrees below zero to 30 degrees below zero.

Technical Field

The invention relates to the technical field of plastics, in particular to a wrapping film applied to a PE mattress and a preparation method for preparing the wrapping film.

Background

With the improvement of living standards of people, various products appear in the field of mattresses, wherein in order to solve the problem that transportation is inconvenient due to the fact that the size of the mattress is too large, people invent related equipment to perform rolling and compressing on the mattress so as to solve the problem, a layer of film is usually sleeved on the surface of the mattress to protect the mattress in the compressing process, and the film is most widely applied to PE mattresses.

However, the films applied to the PE mattress in the market at present have poor viscosity due to the limitation of their own materials, and the adhesion degree between the films squeezed together when the mattress is wrapped is not sufficient, which greatly increases the volume of the wrapped mattress, and most of the films have poor anti-explosion performance, and are easily broken when wrapped, and also during transportation, the mattress can be pulled disorderly due to logistics and the like, and the films have poor wear resistance, which easily damages the mattress.

Therefore, a solution is urgently needed.

Disclosure of Invention

The invention aims to provide a wrapping film applied to a PE mattress and a preparation method thereof, which effectively solve the defects in the background art and have strong adhesion and excellent explosion-proof performance and wear-resistant performance.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a roll-up film applied to a PE mattress comprises the following raw materials in parts by weight: high density polyethylene, 280 plus 320 portions; 290 parts of low-density polyethylene and 310 parts of low-density polyethylene; 90-110 parts of metallocene; 140 portions and 160 portions of linear material; 40-60 parts of a viscosity agent; wherein the high density polyethylene has a density in the range of 0.93 to 0.94g/cm3 and the low density polyethylene has a density in the range of 0.92 to 0.93g/cm 3.

Preferably, the raw material components are as follows by weight: 290 parts of high-density polyethylene; 295 parts of low-density polyethylene; 95 parts of metallocene; wire material, 148 parts; 45 parts of a viscosity agent; wherein the high density polyethylene has a density in the range of 0.93 to 0.94g/cm3 and the low density polyethylene has a density in the range of 0.92 to 0.93g/cm 3.

Preferably, the raw material components are as follows by weight: 300 parts of high-density polyethylene; 300 parts of low-density polyethylene; 100 parts of metallocene; wire material, 150 parts; 50 parts of adhesive; wherein the high density polyethylene has a density in the range of 0.93 to 0.94g/cm3 and the low density polyethylene has a density in the range of 0.92 to 0.93g/cm 3.

Preferably, the component with the density of 0.93g/cm3 in the high-density polyethylene is 190-210 parts, and the component with the density of 0.94g/cm3 in the high-density polyethylene is 90-110 parts.

Preferably, the component with the density of 0.93g/cm3 in the high-density polyethylene is 200 parts, and the component with the density of 0.94g/cm3 in the high-density polyethylene is 100 parts.

Preferably, the high density polyethylene having a density of 0.94g/cm3 is model number 6888.

Preferably, the component with the density of 0.92g/cm3 in the low-density polyethylene is 75-85 parts, and the component with the density of 0.925g/cm3 in the low-density polyethylene is 215-225 parts.

Preferably, the component with the density of 0.92g/cm3 in the low-density polyethylene is 80 parts, and the component with the density of 0.925g/cm3 in the low-density polyethylene is 220 parts.

Preferably, the low density polyethylene having a density of 0.92g/cm3 is type 7050.

The invention also provides a preparation method for preparing the roll-up film, which comprises the following steps: s1, preparing materials, namely taking 80-85 parts of low-density polyethylene and 40-60 parts of adhesive as a first layer material; taking 280-320 parts of high-density polyethylene and 95-105 parts of low-density polyethylene as second layer materials; taking 120 parts of low-density polyethylene 115-110 parts, metallocene 90-110 parts and linear material 140-160 parts as a third layer material; s2, mixing and stirring, namely mixing and stirring the first layer material, the second layer material and the third layer material for 20-30 minutes respectively; s3, extruding, namely, simultaneously feeding the first layer material, the second layer material and the third layer material into an extruder from top to bottom, and extruding under the action of a three-layer extrusion die in the extruder to form a wrapping film; s4, cold cutting and trimming, namely, cooling and trimming the roll-wrapped film formed in the step S3, wherein the cooling temperature range is as follows: 15 degrees below zero to 30 degrees below zero.

The invention provides a wrapping film applied to a PE mattress and a preparation method thereof, and the wrapping film has the beneficial effects that: the defects in the background technology are well solved, the viscosity of the film is well enhanced due to the fact that the adhesive is arranged in the first layer, the film can be well adhered together when the mattress is wrapped, and the purpose of compressing the volume of the PE mattress is well achieved; in addition, in the aspect of manufacturing the film, the high-density polyethylene of 280-320 parts is added, so that the integral structural strength of the film is greatly enhanced, and the explosion-proof performance and the wear-resistant performance of the film are excellent.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the following examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

It should be noted that: the proportions in the following examples are all selected within the range of the composition and density of each raw material.