PVDF and TPO composite sun-proof and anti-aging composite film for waterproof roll and preparation method

Abstract

The invention discloses a PVDF and TPO composite sun-proof and anti-aging composite film for a waterproof roll and a preparation method. The PVDF and TPO composite sun-proof and anti-aging composite film for the waterproof roll comprises a PVDF film, a glue water layer, a TPO layer, an adhesive glue layer and a release layer which are arranged in sequence, wherein the thickness of the PVDF film is0.015-0.025 mm, and the width of the PVDF film is 860-1920 mm; the thickness of the glue water layer is 0.0003-0.0005 mm, and the thickness of the glue water layer is 860-1920 mm; the thickness of the TPO layer is 2-5 mm, and the width of the TPO layer is 900-1100 mm; the thickness of the adhesive glue layer is 1-2 mm, and the width of the adhesive glue layer is 1060-2120 mm; and the thickness ofthe release layer is 0.03-0.04 mm, and the width of the release layer is 1060-2120 mm. The PVDF and TPO composite sun-proof and anti-aging composite film for the waterproof roll can be directly usedfor exposed ultraviolet ray resistance and sun resistance of the single-ply roof aspect and the metal roof aspect; a defect that the exposed sun-proof service life of a thermoplastiadc polyolefin elastomer (TPO) sheet is only 5-10 layers is overcome; the service life is prolonged to 25 years; requirements of new municipal and building waterproofing general specification are met; and the maintenance cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of building waterproof materials, in particular to a PVDF composite TPO light-resistant and anti-aging composite film for waterproof coiled materials and a preparation method thereof. Background technique [0002] In the waterproof industry, thermoplastic polyolefin (TPO) waterproof membrane is a sheet-shaped thermoplastic rubber-like elastic waterproof material made of polyethylene resin as a base material, using advanced polymerization technology and a specific formula. The ingredients do not contain plasticizers. There is no migration of plasticizers and become brittle. It has high tensile strength, good wear resistance, easy processing, welding, convenient construction, complete recycling, and environmental protection. [0003] TPO material is a thermoplastic elastomer. A part of the molecular segment of the polymer crystallizes, and the other part of the segment remains flexible, so that the material has both rig...

AI Technical Summary

Problems solved by technology

Therefore, although TPO has a certain anti-ultraviolet ability, the anti-ultraviolet aging ability is limited. Even if anti-ultraviolet additives are added, the exposed weather resistance is generally about 5 to 10 years. According to the new "General Specifications for Municipal and Building Waterproofing": More than 25 years, obviously, as an exposed sunscreen material, TPO cannot meet the requirement of being exposed for more than 25 years

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