Natural-color polyurethane rubber roller and preparation method thereof

Abstract

The invention belongs to the technical field of high polymer materials, and particularly relates to a natural-color polyurethane rubber roller and a preparation method thereof, wherein the raw materials comprise, by mass, 60-80% of polyester polyol, 7-15% of dimethoxyethyl phthalate, 2-8% of a curing agent, 2-5% of a wear-resistant agent, 3-6% of an antistatic agent, 3-5% of an antioxidant, and 1-3% of a flame retardant, wherein the antistatic agent is formed by compounding polyethylene glycol and an organic lithium salt. According to the invention, polyethylene glycol and an organic lithium salt are compounded to prepare the reactive antistatic agent, the polyurethane synthesized by using the reactive antistatic agent is essentially an ionic electrolyte, and the polyurethane rubber rollerprepared by using the reactive antistatic agent has non-permanent antistatic property, cannot change the primary color of polyurethane, and can be used for preparing a transparent rubber roller.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a natural color polyurethane rubber roller and a preparation method thereof. Background technique [0002] The application of domestic polyurethane rubber rollers began in the early 1980s, and the market demand has been increasing since then. The spare parts of polyurethane rubber rollers in the imported equipment of papermaking, steel, printing and dyeing, textile and other industries urgently need to be localized. There is an urgent need for polyurethane rubber rollers to replace ordinary rubber rollers in order to improve production efficiency and save energy consumption. For example, the cost of removing 1kg of water in the drying section of a paper machine is about 10 times greater than that in the press section. If the roll surface material of the press roll is made of polyurethane When rubber replaces natural rubber, the linear pressure it can withst...

AI Technical Summary

Problems solved by technology

[0003] The antistatic method of existing polyurethane rubber rollers is to add conductive particles such as carbon black metal oxides, but it will make the rubber rollers have a specific color; another kind of natural color polyurethane rubber rollers and its preparation method is to add surfactant antistatic Antistatic agent, but the effect of this kind of antistatic agent is poor in low humidity environment, and the antistatic agent is easy to precipitate and fall off, resulting in poor antistatic effect or no antistatic effect at the end of the service life of the rubber roller