Thermoplastic polyolefin waterproof coiled material and preparation method

Abstract

The invention discloses a thermoplastic polyolefin waterproof coiled material and a preparation method thereof. The thermoplastic polyolefin waterproof coiled material is used for pre-laying anti-sticking construction. The thermoplastic polyolefin waterproof coiled material comprises a surface anti-sticking isolation layer, a protective coating, a hot melting pressure-sensitive adhesive layer and a thermoplastic polyolefin sheet layer, which are arranged in sequence; the thermoplastic polyolefin sheet is prepared by a thermoplastic polyolefin resin base material, auxiliary filler and additives; the hot melting pressure-sensitive adhesive layer adopts high molecular adhesive made of the thermoplastic rubber; the protective coating is prepared by a polymer emulsion base material, filler and additives; the surface anti-sticking isolation layer adopts a silicon coating isolation film; a long edge of the thermoplastic polyolefin sheet layer is provided with an overlap edge for hot melting welding. According to the thermoplastic polyolefin waterproof coiled material, four different materials are compounded into a whole body and form a self-adhesive waterproof coiled material which can be used for the pre-laying anti-sticking construction. The thermoplastic polyolefin waterproof coiled material is excellent in chemical resistance, temperature resistance, penetration-resisting strength, elasticity and flexibility, and the construction laying and adhesion property, the overlap bonding strength and the waterproof effect can be improved.

Description

technical field [0001] The invention relates to a thermoplastic polyolefin waterproof coiled material, which is used for pre-paving anti-adhesive construction, and belongs to the field of building waterproof chemical materials. Background technique [0002] TPO waterproof membrane, that is, thermoplastic polyolefin waterproof membrane, is based on thermoplastic polyolefin (TPO) synthetic resin that combines ethylene-propylene rubber and polypropylene with advanced polymerization technology, and adds antioxidants and light stabilizers. , UV absorbers and other new environmentally friendly waterproof materials. Due to its excellent physical and mechanical properties and construction performance, it has been widely used in construction engineering. TPO waterproof membrane has the high elasticity and weather resistance of ethylene propylene rubber, and at the same time has the weldability of thermoplastic materials, and does not contain plasticizers, and is resistant to ozone, ...

AI Technical Summary

Problems solved by technology

[0004] At present, the waterproof membrane used in pre-paved anti-adhesive construction, the main material is ethylene-vinyl acetate copolymer (EVA), ethylene copolymer modified bitumen (ECB) and high-density polyethylene (HDPE) and other plastic resins, acetic acid in EVA material The content of ethylene is less than 20%, resulting in hard materials and low puncture resistance; HDPE materials have poor corrosion resistance and are easily corroded by corrosive oxidants, aromatic hydrocarbons, etc.

Based on the above reasons, the application of waterproof membranes to building bases, such as tunnels, basements with complex structures, ponds, etc., is not good in construction applications, and it is easy to be pierced by hard objects such as nails and steel bars.

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