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Preparation of high-weather-resistance high-adherence high-transparency polyolefin adhesive film

A technology with high adhesion and high weather resistance, applied in the direction of non-polymer adhesive additives, film/sheet adhesives, adhesives, etc., can solve the problem of poor resin adhesion, affecting adhesion and appearance, and viscosity Rapid changes and other issues, to achieve good weather resistance and long-term preservation, good market prospects, and good impact resistance

Active Publication Date: 2008-10-08
GUANGZHOU LUSHAN NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are following disadvantages when using the above film: large investment in equipment; poor colorability; poor adhesion with PET (polyethylene terephthalate) resin; high water absorption; plasticizers are easy to separate out, affecting adhesion strength and appearance
However, this method has the following disadvantages: the hydrolysis of silane containing amino groups is often relatively rapid, the viscosity changes rapidly, the coating film is inconvenient, and the yellowing is serious
[0008] All of the above interlayer products are at risk of yellowing due to outdoor thermo-oxidative aging and UV aging

Method used

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  • Preparation of high-weather-resistance high-adherence high-transparency polyolefin adhesive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Preparation of Adhesive Film

[0033] A POE (model: ENGAGE TM 8200), 0.3 parts of antioxidant (1010, Ciba) and 0.3 parts of dibenzylidene sorbitol (TM-3, Shanxi Chemical Industry Research Institute) are combined together, and the obtained composition is extruded through twin-screw at 200 ° C After mechanical plastication, it is cast into a sheet (0.4 mm) from a slit mold, and then passes through a solution tank with a weight ratio of silane coupling agent (KH151, domestic) and initiator (dicumyl peroxide DCP) at a weight ratio of 10:1. , and finally use a 30°C hot oven to remove excess solution.

[0034] 2. Preparation of laminated glass

[0035] The intermediate film was sandwiched between two pieces of transparent float glass with a length of 30 cm, a width of 30 cm and a thickness of 5 mm to obtain a sandwich assembly. Then put the sandwich layer into a rubber bag, degas it under a vacuum of 0.1Mpa for 5 minutes, move it into an oven while maintaining the dega...

Embodiment 2

[0037] In addition to POE (ENGAGE TM 8200) was changed to high pressure polyethylene (1F7B), other all prepared interlayer film and laminated glass by the same method of embodiment 1.

Embodiment 3

[0039] Except for changing the weight ratio of KH151 to DCP from 10:1 to 15:1 in Example 1, the interlayer film and laminated glass were prepared in the same manner as in Example 1.

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Abstract

The invention relates to a preparation method of polyolefin adhesive film which has the advantages of high weatherability, high adhesive force and high transparency; silane coupling agent and additive are mixed to obtain complex solution according to the weight ratio of 20:1-1:1, and then the complex solution is coated on the surface of the cast film through the methods of spraying and doctor coating; the redundant solution is dried finally; the polyolefin adhesive film prepared by the method has the advantages of high transparency, high weatherability and high adhesive force; the self-adhered situation under the normal temperature is avoided; the humidity conditioning is not needed before being used; the laminated glass prepared by the adhesive film not only has good transparency, good impact resistance performance and strong initial adhesive force with the glass, but also has good weatherability and long term storage property.

Description

technical field [0001] The invention relates to a preparation method of a polyolefin film, in particular to a method for adding a silane coupling agent, an initiator and a linking agent in the process of preparing the polyolefin film. Background technique [0002] Laminated glass is a very ideal variety of multi-purpose glass. It can not only protect the safety of people and property, but also maintain the beauty and transparency of the glass. At the same time, it can also reduce noise, control sunlight and shield at least 99% of harmful ultraviolet rays. In addition, insulating glass made of laminated glass increases thermal insulation. Therefore, laminated glass is an excellent solution to the problem of safety protection. In recent years, it has been widely used in high-rise buildings, automobiles and public facilities. [0003] Laminated glass is made of two or more layers of inorganic glass (one or more layers can be replaced by an organic resin plate) bonded through ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/00C09J123/16C09J123/08C09J11/06C03C27/10
Inventor 李连春唐舫成
Owner GUANGZHOU LUSHAN NEW MATERIALS
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