Foam caulk is an adhesive with foaming and bonding properties. A moisture-cured polyurethane resilient foam. So far, there are two types on the market: gun type and tube type, each with different qualities and effects. Especiallygun foam caulk, suitable for industrial applications, 在The role of bonding, sealing and filling protection.
Foam caulkThe working principle is very simple, Easy to use, able to performPowerful products‘s performance. When the material comes fromfoam caulk When sprayed from the glue tank, polyurethaneBubble<font The material will expand rapidly and react with air or moisture in the contact matrix to form foam. Curedpolyurethane foam caulking agenthas many effects, such as caulking, gluing, and sealingetc.. In addition, foam caulkcan also be used as heat insulationSoundproof. Due to its pre-foaming and post-foaming characteristics, it can effectively fill some irregular gaps. Very suitableforSome special fields.
So how is foam caulking made? What are its formulas and production techniques? The author will introduce it to you below.
The formula or production process of foam caulking agent ispolyether or Raw materials such as polyester polyol (white material), polyisocyanate (black material), water, catalyst, surfactant, foaming agent, and other additives are added in one step, mixed under high-speed stirring, and then foamed.
Usually, companies conduct research and developmentand productionNew productsSome problems will be encountered in the process, which will invest a lot of manpower, financial resources and time, affecting the entireR&Dcycle. Therefore, before developing new products, you can use ingredients Analytical reverse engineering obtains a basic Recipe, can be passed laterRecipe optimizationto improve performance. If in subsequent Problems during the production process can be discovered in time and the reasons can be knownand then resolve the problem.
Product component analysis is the process of using scientific and reasonable analytical methods to conduct qualitative and quantitative analysis of each component in a mature product, and combining it with certain industry experience to restore its original components, which is the process in the field of material research and development“Reverse Engineering”. Comprehensive analysis generally uses five microscopic spectra (spectrum, chromatography, energy spectrum, mass spectrum and thermal spectrum). The analysis results can be used as important reference information or basis for product development, formula improvement and quality problem diagnosis.
The above is the formulation technology of polyurethane foam caulking agent introduced by the author. I hope it can be helpful to you.
Title of this article: Formulation technology of polyurethane foam caulking agent
Source of this article: http://www.wellgo.com. cn/newb/information_2438.shtml
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