Thermoplastic polyolefin TPO waterproof coiled material and preparation method thereof

Abstract

The invention discloses a thermoplastic polyolefin TPO waterproof coiled material. The waterproof coiled material has a three-layer structure, the upper surface and the lower surface are separately aTPO coiled material layer, and the middle is a polyester fiber mesh grid fabric reinforcement layer, wherein the TPO coiled material layer of the upper surface is white, and the TPO coiled material layer is prepared by taking a thermoplastic polyolefin synthetic resin material formed by binding of ethylene propylene rubber and polypropylene as a base material, taking modified nano calcium carbonate as a filler, and adding an anti-aging agent, a tackifier, a bridging agent, a dispersant, a softener and a toner. The TPO waterproof coiled material provided by the invention has excellent weather resistance and durability of the ethylene propylene rubber and weldability of the polypropylene, and the weather resistance and stability of the product are further guaranteed through screening of themodified nano calcium carbonate which has better filling performance and better dispersibility and is suitable for a TPO coiled material system, and cooperative use of the anti-aging agent, the tackifier, the bridging agent, the dispersant, the softener and the toner.

Description

technical field [0001] The invention relates to a polymer waterproof coiled material, in particular to a thermoplastic polyolefin TPO waterproof coiled material and a preparation method thereof, belonging to the field of waterproof chemical materials. Background technique [0002] With the improvement of construction technology, the demand for waterproof materials for construction projects is also increasing, and the quality requirements are also getting higher and higher. Therefore, the promotion and application prospects of new polymer waterproof membranes are also becoming wider and wider. Polymer waterproof membrane is a new type of building material. It is light, high-strength, low-energy and multi-functional in line with the development trend of building material innovation. Common varieties include PVC waterproof membrane, EPDM waterproof membrane, CPE waterproof membrane and TPO waterproof membrane. Coil. Among the current waterproof materials, the more mature one i...

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Problems solved by technology

[0006] However, in the above-mentioned patent documents, the fillers therein are all unmodified, and there will be obvious disadvantages when filled in polyolefins: one is that the surface is hydrophilic and oleophobic, and the dispersibility in polyolefins is poor; the other is calcium carbonate and polyolefins. Olefin body has poor bonding force and can only act as a compatibilizer. When filling with a high proportion of calcium carbonate, the performance of polyolefin materials will drop sharply, so that the products are difficult to be processed and used.

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