Preparation process of polyurethane foam joint mixture

Abstract

The invention relates to a preparation process of a polyurethane foam joint mixture. Equipment used in the process comprises a workbench, a vibration device, a rotating device and a clamping device, wherein the vibration device is installed on the left side of the upper end of the workbench, the rotating device is arranged at the upper end of the left side of the vibration device, and the clampingdevice is installed on the inner side of the rotating device. The preparation process of the polyurethane foam joint mixture in the invention overcomes the following problems: when a foam joint mixture is manually prepared, a manual shaking vibration mode is generally adopted to for vibration fusion of the foam joint mixture, and manual feeding, discharging and vibrating processes are tedious, sothe manufacturing efficiency of the foam joint mixture is reduced; and when existing foam joint mixture manufacturing equipment is used for preparing foam joint mixtures, filled foam joint mixtures are directly vibrated and shaken in normal conditions, so polyurethane prepolymers (black materials and white materials) of a part of the foam joint mixtures are incompletely fused, and a part of the manufactured foam joint mixtures are unqualified.

Description

technical field [0001] The invention relates to the technical field of caulking agent production, in particular to a preparation process of polyurethane foam caulking agent. Background technique [0002] Polyurethane foam caulk is a one-component, moisture-curing, multi-purpose polyurethane foam-filled elastomeric sealing material. Polyurethane foam sealant is a special polyurethane product filled with polyurethane prepolymer, foaming agent, catalyst and other components in a pressure-resistant aerosol can. During construction, the aerosol colloid is sprayed to the site to be constructed through a matching sizing gun or manual nozzle, and the forming, foaming, bonding and sealing processes are completed in a short period of time. Its cured foam elastomer has excellent properties such as bonding, waterproof, thermal expansion and contraction resistance, heat insulation, sound insulation, and even flame retardant and limited flame retardant. [0003] The following problems o...

AI Technical Summary

Problems solved by technology

[0004] (1) When the foam sealant is prepared by manual processing, after the polyurethane prepolymer, foaming agent, catalyst, etc. are filled in the tank, the foam sealant is usually vibrated and fused by artificial shaking and vibration , During the vibration fusion process of the foam sealant, the manual loading and unloading and vibration process are cumbersome, thereby reducing the production efficiency of the foam sealant;

[0005] (2) When the existing foam sealant production equipment is preparing the foam sealant, the foam sealant after filling is usually directly vibrated and shaken, and its quality inspection is blanked after the vibration and shaking is completed, thereby The polyurethane prepolymer (black material and white material) of some foam sealants is incompletely fused, which leads to the substandard production of some foam sealants

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