Composite material for water pipes and preparation method thereof

Abstract

The invention discloses a composite material for water pipes and a preparation method thereof and relates to the field of water pipe materials. The composite material comprises, by weight, 50-60 partsof polypropylene, 15-20 parts of natural rubber, 10-15 parts of ultrafine calcium carbonate, 8-15 parts of modified bamboo charcoal, 3-7 parts of nanometer zinc oxide, 3-6 parts of N-phenyl maleimide, 5-10 parts of glass fibers, 5-10 parts of graphite powder, 2-5 parts of a plasticizer, 1.5-2.5 parts of an antioxidant, 1-3 parts of a silane coupling agent and 1.8-2.8 parts of a heat stabilizer. Through synergism of water pipe components, the composite material has good corrosion resistance, temperature resistance, anti-aging properties, excellent mechanical shock resistance, high strength andembrittlement resistance.

Description

technical field [0001] The invention relates to the field of water pipe materials, in particular to a composite material for water pipes and a preparation method thereof. Background technique [0002] With the intensification of urbanization, the construction of pipeline engineering is also in full swing. As an important part of pipeline engineering, water pipes are responsible for transporting water bodies. Existing water pipes are generally made of PVC materials, but PVC water pipes are not high enough in flame retardancy, and will emit a large amount of black smoke and toxic gases when burning, such as carbon monoxide, benzene, naphthalene and other aromatic compounds, polluting the environment. In addition, PVC water pipes on the market have poor pressure resistance and are prone to problems such as water leakage, water seepage, and rupture, which greatly reduces the service life of PVC pipes and limits their application range. [0003] Chinese patent CN103772834B provi...

AI Technical Summary

Problems solved by technology

Existing water pipes generally use PVC materials, but the flame retardant performance of PVC water pipes is not high enough, and it will emit a lot of black smoke and toxic gases when burning, such as carbon monoxide, benzene, naphthalene and other aromatic compounds, polluting the environment

In addition, the PVC water pipes on the market have poor pressure resistance and are prone to problems such as water leakage, water seepage, and rupture, which greatly reduce the service life of PVC pipes and limit their application range.

[0003] Chinese patent CN103772834B provides a plastic water pipe material, which is composed of the following components by weight: 30-60 parts of styrene thermoplastic elastomer; 45-60 parts of mineral oil; 5-15 parts of polyolefin; 5-15 parts of polyolefin thermoplastic elastomer; 0.1-5 parts of lubricant; and 0.1-0.5 parts of antioxidant, and also provide a preparation method of plastic water pipe material: using styrene thermoplastic elastomer as the base material , fully mixed with polyolefin thermoplastic elastomer and other raw materials to obtain plastic water pipe materials, styrene thermoplastic elastomer has good weather resistance, heat resistance, compression deformation resistance; the product has good plasticity and good extrusion stability, and can be Improve the tear strength, tensile strength and elongation at break of the plastic water pipe material, but the water pipe material of the present invention has poor mechanical shock resistance and low strength

[0004] Chinese patent CN106188736B discloses a material for underwater water delivery pipes, including the following materials in parts by weight: 80-90 parts of HDPE, 5-15 parts of silane coupling agent, 0.5-1 part of antibacterial agent, 20-25 parts of polyamideimide resin, 4-8 parts of octyl phenolic resin, 1-5 parts of metal salt nucleating agent, 2-3 parts of compatibilizer, 0.2-0.5 parts of antioxidant, the underwater water pipe material made with this formula has good antibacterial properties and fatigue resistance, the materials used at the same time have low toxicity, which can avoid water pollution caused by long-term use, but the materials have the disadvantages of poor flame retardancy, low strength, poor toughness and poor aging resistance