Corrosion-resistant durable plastic inspection well

Abstract

The invention relates to the technical field of water drainage and particularly relates to a corrosion-resistant durable plastic inspection well, which includes following raw materials, by weight: 65-66 parts of impact-resistant co-polymerized polypropylene, 20-22 parts of chlorinated polypropylene, 10-11 parts of chlorinated polyethylene, 5-7 parts of polyamide, 4-5 parts of HDPE, 5-8 parts of ethylene propylene diene monomer, 5-8 parts of a compatilizer, 4-5 parts of talcum powder, 2-3 parts of a nucleating agent, 5-7 parts of organically modified montmorillonite, 3-6 parts of nano silicon dioxide, 1-3 parts of a lubricant, 0.5-2 parts of a stabilizing agent and 1-10 parts of a filling material. The compatilizer is compounded from following components, by weight: 65-67% of maleic anhydride grafted polypropylene with grafting rate being 6-7%, 31-32% of a polyolefin elastomer with grafting rate being 7-11%, and 2-3% of barium sulfate. The nucleating agent is compounded from following components, by mass: 88-92% of poly formaldehyde, 5-7% of surface epoxy group modified nano titanium dioxide and 2-5% of p-dimethyldibenzylidene sorbitol. The material can be used for preparing the inspection well being high in strength and large in size with excellent corrosion-resistant and aging-resistant performances.

Description

technical field [0001] The invention relates to the technical field of drainage, in particular to a corrosion-resistant and durable plastic inspection well. Background technique [0002] Inspection wells are set up for easy installation and maintenance of power supply, water supply, drainage, communication, cable TV, gas pipes, street lamp lines, etc. of urban underground infrastructure. It is generally installed at pipeline intersections, turns, pipe diameter or slope changes, and at regular distances on straight pipe sections, so as to facilitate regular inspection, cleaning and dredging, or well-shaped structures for downhole operation and inspection. [0003] The traditional inspection well is mainly made of brick concrete, which is made of concrete, mortar, brick, gravel and other materials according to the corresponding regulations. Most of the existing inspection wells are brick concrete inspection wells, which mainly have the following disadvantages: firstly, the st...

AI Technical Summary

Problems solved by technology

Most of the existing inspection wells are brick concrete inspection wells, which mainly have the following disadvantages: firstly, the strength is low, the quality stability is poor, and the support strength of the brick structure is low, especially the part of the brick structure close to the road. The impact of balanced lateral force is easy to collapse; secondly, the construction speed is slow, the well body construction period is long, and the construction is complicated. Due to the manual on-site stacking, the requirements for civil engineering are high, the degree of standardization, generalization, and serialization is poor, and the amount of manual work and materials used It is an important factor affecting quality, has a great impact on the environment and urban traffic, and does not meet the requirements of civilized construction and rapid construction; in addition, there are defects such as non-replaceable, easy to break and leak, causing pollution, etc., requiring frequent maintenance

[0006] The current plastic inspection wells are made of polyethylene and polyvinyl chloride, and the inspection wells made of these types of plastics have the following problems: because the inner wall surface is fluffy, it is easy to block debris; the overall strength is not enough, which is harmful to the inspection well Restricted by size; insufficient corrosion resistance, not suitable for use in harsh environments, short service life