Fiber-reinforced polypropylene material and application of pipelines made from fiber-reinforced polypropylene material

Abstract

The invention provides a fiber-reinforced polypropylene material and an application of pipelines made from the fiber-reinforced polypropylene material. The fiber-reinforced polypropylene material is characterized by comprising polypropylene resin, fiber, crystal whisker, an inorganic particle, elastomer, a lubricant, an antioxidant and a coupling agent, wherein the fiber is one or more of glass fiber, carbon fiber and basalt fiber; the crystal whisker is one or more of silicon carbide crystal whisker, potassium titanate crystal whisker and aluminum oxide crystal whisker; the organic particle is one or more of SEBS (Styrene-Ethylene-Butylene-Styrene), POE (polyolefin elastomer), EVA (Ethylene / vinyl acetate) and EPDM (Ethylene-Propylene-Diene Monomer); the lubricant is one or more of calcium stearate, zinc stearate, stearic acid and a lubricant TAF; the antioxidant is hindered phenol antioxidant 1010; the coupling agent is one of a silane coupling agent, a titanate coupling agent and an aluminic acid ester coupling. The fiber-reinforced polypropylene material has the advantages of high-pressure resistance, high-temperature resistance, high corrosion resistance, high stretch resistance, high impact resistance, low coefficient of linear expansion, moderate heat conductivity coefficient, long service life and the like.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to a fiber-reinforced polypropylene material and the application of the pipeline. Background technique [0002] At present, plastic pipes are mainly made of single thermoplastics such as polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC). The ubiquitous and outstanding shortcomings of these pipes made of a single thermoplastic are low strength, low rigidity, and poor heat resistance. It seems powerless, and the material consumed for production when the plastic pipe is relatively large in diameter is also a lot. For example, the design stress of PE100, the highest grade HDPE pipe special material, is only 8MPa, while the design stress of reinforced thin steel wire is generally around 1000MPa. [0003] In order to further expand the market area of ​​plastic pipes, break through the limitations of traditional pipes, develop and seek new types of pipes wit...

AI Technical Summary

Problems solved by technology

[0005] For the composite pipe with all-steel strip or mesh steel strip as the reinforcement layer, due to the difference in shrinkage rate of plastic and metal by more than 200 times, a large internal stress will be formed inside the pipe wall during the cooling process, while welding points and punching At the edge of the hole, it is easy to create stress concentration points, thus increasing the risk of pipeline failure

So this enhanced pipeline has not become the main promotion product on the market due to reliability reasons