Dicyclopentadiene and carbon fiber cloth composite manhole cover and manufacturing method thereof

Abstract

The invention discloses a dicyclopentadiene (DCPD) and carbon fiber cloth composite manhole cover and a manufacturing method thereof. According to the manufacturing method, a component A and a component B are adopted, are mixed through an injection machine mixing head according to the weight ratio of 1:1 and then are injected into a manhole cover mold pre-placed and fixed with carbon fiber cloth subjected to surface treatment, polymerization reaction and molding processes are preformed in the manhole cover mold, and thus the polydicyclopentadiene and carbon fiber cloth composite manhole cover is obtained; the component A comprises dicyclopentadiene and a main catalyst; the component B comprises dicyclopentadiene and an activating agent. With adopting of the reaction injection molding processing method, the processing process adopts one-time molding, the processing flow is greatly reduced, and the processing speed is improved; with adopting of dicyclopentadiene and the carbon fiber cloth as the materials, the manhole cover strength and rigidity are obviously improved, the manhole cover has the advantages of abrasion resistance, corrosion resistance, excellent rigidity, excellent impact strength, wide applicable temperature range and good heat resistance, and the service life is prolonged.

Description

technical field [0001] The invention relates to a composite well cover and a manufacturing method thereof, in particular to a dicyclopentadiene and carbon fiber cloth composite well cover and a manufacturing method thereof. Background technique [0002] The observation well covers of the existing underground pipe network (including water supply pipe network, communication facilities, etc.) are mostly made of cast iron, ductile iron or polymer-based composite materials. During long-term use, especially when vehicles pass by, Deformation, cracking and fragmentation often occur. Although some manhole covers are designed with reinforcing ribs, they do not fundamentally solve the problem. The main reason for this situation is that the strength of the manhole cover cannot meet the requirements of long-term use, and the environmental stress cracking resistance, heat resistance, corrosion resistance, and aging resistance are poor, which in turn affects the service life and requires ...

AI Technical Summary

Problems solved by technology

[0002] The observation well covers of the existing underground pipe network (including water supply pipe network, communication facilities, etc.) are mostly made of cast iron, ductile iron or polymer-based composite materials. During long-term use, especially when vehicles pass by, Deformation, cracking and fragmentation often occur. Although some manhole covers are designed with reinforcement ribs, they do not fundamentally solve the problem.

The main reason for this situation is that the strength of the manhole cover cannot meet the requirements of long-term use, and the environmental stress cracking resistance, heat resistance, corrosion resistance, and aging resistance are poor, which affects the service life and requires frequent replacement.

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