A portable polyurethane two-component foam caulking compound

Abstract

A portable polyurethane two-component foam caulking compound and a preparing method thereof are disclosed. The foam caulking compound comprises an A component and a B component. The A component comprises polyether polyol or polyester polyol, castor oil, a plasticizer, triethanolamine, a foam stabilizer, a catalyst and a foaming agent. The B component comprises polyisocyanate, a plasticizer, a foam stabilizer and a foaming agent. The preparing method includes 1) a step of preparing the A component, namely a step of fully mixing the polyether polyol or the polyester polyol, the castor oil, the plasticizer, the triethanolamine, the foam stabilizer and the catalyst, feeding the uniformly mixed materials into a specially-used aerosol pot, closing a valve, feeding the foaming agent, and shaking the pot until the materials are uniformly mixed, then the mixture can be used in match with the B component; and 2) a step of fully mixing the polyisocyanate, the plasticizer and the foam stabilizer, feeing the mixture into a specially-used aerosol pot, closing a valve, feeding the foaming agent, and shaking the pot until the materials are uniformly mixed, then the mixture can be used in match with the A component. The foam caulking compound is high in curing speed, low in environment dependence, high in density and good in toughness and elasticity, and meets requirements the industry of construction.

Description

technical field [0001] The invention relates to a portable polyurethane two-component foam caulking agent and a preparation method thereof. Background technique [0002] Portable polyurethane two-component foam sealant is a new type of polyurethane foam sealant, which is the product of the combination of two-component polyurethane technology and aerosol technology. Polyurethane foam sealant has the advantages of fast curing speed, low environmental dependence, easy construction in hand-held type, and high density after curing. Waterproof heat preservation and edge bonding sealing, sealing, heat insulation, heat preservation, plugging and filling of various pipes, fixed bonding, filling and insulation of indoor objects, and can also be used for fast bonding of brackets in the treatment of wounded on the battlefield with fixed. [0003] With the rapid development of my country's construction industry, polyurethane foam sealant as one of the building materials has been widely...

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Problems solved by technology

[0003] With the rapid development of my country's construction industry, polyurethane foam sealant as one of the building materials has been widely used, making the one-component sealant fully developed in technology, but due to the one-component polyurethane foam The curing of the joint agent needs to absorb the water vapor in the air to react, and the curing time is longer. If the humidity in the air is low, the curing reaction will be slower and the dependence on the environment is high, so the environmental dependence is reduced and the curing speed is accelerated. Ease of construction has become one of the important development trends of polyurethane foam sealant

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