A kind of polyurethane foaming agent preparation foaming process
A polyurethane foaming agent and process technology, applied in the directions of transportation and packaging, dissolution, chemical instruments and methods, can solve the problems of labor-intensive, wasteful, sticking to the inner wall of the container, etc., to avoid waste of raw materials, improve Production efficiency, full mixing effect
Active Publication Date: 2020-12-04
安庆永大体育文化有限公司
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Problems solved by technology
[0004] The invention provides a foaming process for preparing polyurethane foaming agent, aiming to solve the following problems in the current preparation process of polyurethane foaming agent by manual foaming: (1) Manual foaming has low labor production efficiency and consumes manpower Large; (2) The utilization rate of raw materials for manual foaming is low, and some raw materials will adhere to the inner wall of the container, resulting in waste; (3) Manual foaming and stirring are not sufficient, resulting in the performance of polyurethane foaming agents being affected
Method used
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[0033] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0034] Such as Figure 1 to Figure 7 As shown, this embodiment provides a polyurethane foaming agent preparation device, the polyurethane foaming agent preparation device includes a cylindrical stirring tank 1, the outer wall of the stirring tank 1 is uniformly and vertically fixedly welded with a support along its circumference For the legs 2, reinforcing rods are welded between adjacent supporting legs 2. Above the middle part of the top plate of the mixing tank 1, a reciprocating rotating motor 3 is vertically fixedly installed through a motor base. On the top plate of the mixing tank 1, a feeding port 4 is evenly opened around the reciprocating rotating motor 3. The feed pipe 5 inside the tank 1 is stirred. The side wall of the stirring tank 1...
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The invention belongs to the technical field of new materials, and specifically relates to a foaming process for preparing a polyurethane foaming agent. A polyurethane foaming agent preparation device is used to cooperate and complete the following steps: Step 1, adding raw materials: driving a pressure plate through a reciprocating rotating motor Move upward along the first lead screw, and add raw materials into the mixing tank through the feed port; Step 2, pressure stirring: the reciprocating rotating motor drives the pressure plate to move down along the first lead screw, and the The raw material mixture is pressurized and stirred at the same time; step 3, finished product discharge: after stirring several times according to the method described in step 2, open the valve of the discharge port; the reciprocating rotating motor drives the pressure plate to move downward, and the finished product is mixed The material flows out of the mixing tank through the outlet. The foaming process for preparing the polyurethane foaming agent of the present invention realizes sufficient stirring of raw materials of the polyurethane foaming agent, avoids waste of raw materials, and improves production efficiency.
Description
technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a foaming process for preparing a polyurethane foaming agent. Background technique [0002] The full name of polyurethane foaming agent is one-component polyurethane foam caulking agent. It is a special polyurethane product filled with polyurethane prepolymer, foaming agent, catalyst and other components in a pressure-resistant aerosol tank. It has pre-foaming, With the advantages of high expansion and small shrinkage, it is an environmentally friendly, energy-saving, and easy-to-use building material. It can be used for sealing and plugging, filling gaps, fixing and bonding, etc. The preparation of polyurethane foaming agent usually adopts a one-step foaming process, that is, polyether or polyester polyol and polyisocyanate, water, catalyst, surfactant, foaming agent, other additives and other raw materials are added in one step, and mixed under high-speed stir...
Claims
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IPC IPC(8): B01F11/00B01F15/00C08J9/04C08L75/04
CPCC08J9/04C08J2375/04B01F31/40B01F35/123
Inventor 李亚高丰
Owner 安庆永大体育文化有限公司