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Antirust film of door and preparation method of antirust film

A gas-phase rust inhibitor and styrofoam technology, applied in the field of packaging materials, can solve the problems of poor flexibility of the rust-proof film, inability to meet the door rust prevention, poor rust-proof effect, etc. Rust ability and time, the effect of enhancing rust prevention ability and time

Inactive Publication Date: 2014-10-01
CHONGQING TONGHE PACKAGING PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not suitable for rust prevention of metal products that have been used for 20-30 years, such as anti-theft doors or fire doors. These anti-rust films are not flexible enough to be used for door anti-rust, easy to foam and fall off, and have a long-term anti-rust effect bad
For this reason, in order to research a anti-rust suitable for anti-theft doors or fire doors and other steel or metal products with a long service life, the inventor has completed the anti-rust film of the present invention, which is especially suitable for anti-theft doors or fire doors, and solves the problem of existing problems. The anti-rust film cannot meet the problem of anti-rust of the door

Method used

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  • Antirust film of door and preparation method of antirust film
  • Antirust film of door and preparation method of antirust film
  • Antirust film of door and preparation method of antirust film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] refer to figure 1 , a kind of anti-rust film suitable for doors, take polypropylene resin pressure-sensitive adhesive, add gas-phase anti-rust agent according to 20% of the weight of the pressure-sensitive adhesive, mix evenly, and set aside, take a nylon film with a thickness of 20 μm, and mix polyurethane Grease foaming glue is evenly coated on one surface with a thickness of about 30 μm. After a little drying, apply a pressure-sensitive adhesive mixed with a gas-phase antirust agent on the surface of the foaming rubber layer with a thickness of about 20 μm. A 50 μm PVC film containing the anti-rust agent is pasted on the surface of the pressure-sensitive adhesive layer and dried at 50-60° C. to obtain the anti-rust film of the present invention.

Embodiment 2-5

[0030] The antirust film of embodiment 2-5 has identical structure with embodiment 1, and material and formula are shown in table 1 below

[0031] The material and the prescription of the antirust film of table 1 embodiment 2-5

[0032]

[0033] In the table, #PVC film containing vapor phase antirust agent is purchased through commercial channels, * is polypropylene resin pressure-sensitive adhesive, and ** dosage is the percentage of pressure-sensitive adhesive weight.

[0034] Preparation process: prepared according to the method of Example 1.

Embodiment 6

[0041] Embodiment 6 effect test

[0042] Paste the rust preventives of Examples 1-5 and Comparative Examples 1-4 on the steel plate surface of the fire door, and carry out the salt spray test according to the GB / T10125-1997 standard.

[0043] Test Conditions:

[0044] Settling salt solution concentration: 50±5g / L NaCl

[0045] Chamber temperature: 35±2°C

[0046] Salt mist deposition rate: (1.0-2.0)ml / 80cm 2 .h

[0047] Precipitation salt solution pH: (35±2°C)6.5-7.2

[0048] Exposure time: 500 hours

[0049] The test results are shown in Table 3

[0050] Table 3 embodiment 1-5 and comparative example 1-4 performance test result

[0051]

[0052] The results in the table show that the anti-rust film with pressure-sensitive adhesive layer is in close contact with the steel plate, without peeling and blistering, and the anti-rust film without pressure-sensitive adhesive layer is easy to fall off and foam, and no polyurethane foam is used. And the anti-rust film without ...

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Abstract

The invention relates to an antirust film applicable to a door. The antirust film consists of a high-permeability layer, a high-barrier layer and an adhesive layer between the high-permeability layer and the high-barrier layer. The antirust film is characterized in that the high-permeability layer is a PVC (polyvinyl chloride) film containing a gas phase antirust agent; the high-barrier layer is made of nylon; the adhesive layer is made of a polyurethane foaming adhesive and a polypropylene resin pressure-sensitive adhesive. The high-permeability layer is capable of guaranteeing effective diffusion and volatilization, so that the antirust film is good in antirust performance; the high-barrier layer has a high-barrier effect on water vapor and oxygen and also can effectively prevent the volatilization loss of components of a gas phase inhibitor.

Description

technical field [0001] The invention belongs to the field of packaging materials, and in particular relates to an antirust film for doors and a preparation method thereof. Background technique [0002] Metal products are facing the problem of rust prevention. The rust prevention method has been developed from the simplest electroplating, dip coating, vacuum packaging, paint, and antirust oil to the VCI gas phase antirust method, which is widely used in ferrous metals and their Anti-rust products. [0003] At present, vapor phase anti-rust film is widely used in the anti-rust of steel equipment. It is mainly used for the packaging of steel material equipment and equipment to prevent long-term storage from rusting. [0004] CN101879802 discloses a multifunctional long-lasting antirust film, which includes nylon, glued layer, antibacterial agent and antirust agent. Anti-rust for a long time, suitable for large-scale equipment occasions. [0005] CN102501510 discloses a comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B7/12
Inventor 谢辉蒲均赵羽谢娜
Owner CHONGQING TONGHE PACKAGING PROD
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