A kind of composite purification packaging bag and preparation method thereof

Abstract

The invention provides a composite purification packaging bag which is prepared from the following components in parts by weight: 50-60 parts of HDPE (High-Density Polyethylene), 35-45 parts of LLDPE(Linear low density polyethylene), 10 parts of a thermoplastic elastomer and 10 parts of composite calcium carbonate. Composite calcium carbonate is prepared by the following steps: putting calcium carbonate superfine powder into ultrapure water, performing ultrasonic dispersion for 30 minutes, adding isopropanol zirconium, tetraethoxysilane, water and ethanol, heating to 75 DEG C, performing magnetic stirring for 10 hours, performing centrifugation for 20 minutes to obtain a mixture, washing the mixture with deionized water twice, putting into a muffle furnace, performing pyrolysis for 1 hourat 450 DEG C, cooling to the room temperature, and grinding, thereby obtaining composite calcium carbonate. The invention further provides a preparation method of the composite purification packagingbag. The composite purification packaging bag provided by the invention is not only good in puncture resistance, but also very good in toughness, tearing resistance and scraping resistance.

Description

technical field

[0001] The invention relates to a purification packaging bag, in particular to a composite purification packaging bag and a preparation method thereof. Background technique

[0002] At present, the packaging of semiconductor wafers, mobile phones and computer touch screens, high-purity silicon materials, computer hard drives, optical devices, LCD-TFT flat-panel displays, and various clean wipes will use purification packaging bags. Most of the purification packaging bags commonly used in the market are produced by casting or blown film after blending low-density polyethylene and ordinary linear low-density polyethylene. During the transportation of items, it is necessary to pack the items with purified packaging bags. Since the purified packaging bags will be subjected to various impacts and collisions during outbound transportation and transshipment, in order to ensure the safety of the objects in the purified packaging bags Effective, to avoid the problem ...

Examples

Embodiment 1-4

[0029] Composite purification packaging bag is prepared according to the ratio in Table 1 (in parts by weight):

[0030] Example 1 Example 2 Example 3 Example 4 HDPE 50 60 52 55 LLDPE 45 35 39 40 POE 10 10 10 10 Complex Calcium Carbonate 10 10 10 10

[0031] Table 1

[0032] The preparation method of embodiment 1-4 comprises the following steps:

[0033] (1) Add ultrafine calcium carbonate into ultrapure water, ultrasonically disperse for 30 minutes, add zirconium isopropoxide, tetraethyl orthosilicate, water, ethanol, heat to 75°C, stir magnetically for 10 hours, centrifuge at 8000rpm for 20 Minutes later, the mixture was obtained, and the mixture was washed twice with deionized water, then placed in a muffle furnace, pyrolyzed at 450°C for 1 hour, cooled to room temperature, and ground to obtain composite calcium carbonate, wherein, ultrafine calcium carbonate, ultrapure The mass ratio of water, zirconium isopropoxid...

technical field

[0001] The invention relates to a purification packaging bag, in particular to a composite purification packaging bag and a preparation method thereof. Background technique

[0002] At present, the packaging of semiconductor wafers, mobile phones and computer touch screens, high-purity silicon materials, computer hard drives, optical devices, LCD-TFT flat-panel displays, and various clean wipes will use purification packaging bags. Most of the purification packaging bags commonly used in the market are produced by casting or blown film after blending low-density polyethylene and ordinary linear low-density polyethylene. During the transportation of items, it is necessary to pack the items with purified packaging bags. Since the purified packaging bags will be subjected to various impacts and collisions during outbound transportation and transshipment, in order to ensure the safety of the objects in the purified packaging bags Effective, to avoid the problem ...

Examples

Embodiment 1-4

[0029] Composite purification packaging bag is prepared according to the ratio in Table 1 (in parts by weight):

[0030] Example 1 Example 2 Example 3 Example 4 HDPE 50 60 52 55 LLDPE 45 35 39 40 POE 10 10 10 10 Complex Calcium Carbonate 10 10 10 10

[0031] Table 1

[0032] The preparation method of embodiment 1-4 comprises the following steps:

[0033] (1) Add ultrafine calcium carbonate into ultrapure water, ultrasonically disperse for 30 minutes, add zirconium isopropoxide, tetraethyl orthosilicate, water, ethanol, heat to 75°C, stir magnetically for 10 hours, centrifuge at 8000rpm for 20 Minutes later, the mixture was obtained, and the mixture was washed twice with deionized water, then placed in a muffle furnace, pyrolyzed at 450°C for 1 hour, cooled to room temperature, and ground to obtain composite calcium carbonate, wherein, ultrafine calcium carbonate, ultrapure The mass ratio of water, zirconium isopropoxid...

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