انواع هاردنر اپوکسی
هاردنرهای اپوکسی
هاردنرهای مورد مصرف در صنعت کفپوش عمدتا به دو گروه عمده اصلی زیر تقسیم میشوند
هاردنرهای پلی آمید : این گروه از هاردنرها عمدتا در رنگهای اپوکسی و پرایمر کاربرد داشته و بدلایل خصوصیات مناسب زیر استفاده گسترده ای دارند : انعطاف پذیرند مقاومت بالا نسبت به ضربه و مواد شیمیایی دارند و بدلیل چسبندگی بالا به بتن و مقتاومت مناسب به رطوبت در صنعت کفپوش عمدتا بعنوان هاردنر پرایمر مورد استفاده قرار میگیرد .
هاردنرهای پلی آمین
IHهاردنر پلی آمین این هاردنرها بسیار در صنعت و بخصوص صنعت کفپوش کاربرد داشته و برای روکش و لایه های کفپوش استفاده میشود این هاردنر بامقاومت شیمیایی نسبتا خوب معمولا در لایه ها و روکش استفاده میشودو رزین پس از خشک شدن بسیار سخت گردیده ودر دمای اتاق خشک میگردد
محصولات مرتبط
رقیق کننده کفپوش پلی یورتان
این رقیق کننده ها در واکنش شرکت نکرده و فرار میباشند و معمولا تبخیر بالایی داشته و بایستی حتی الامکان استفاده نگردند ولی در بسیاری از پروژه ها استفاده از آنها جهت کاهش ویسکوزیته ضروری است و میبایستی در حد محدودی استفاده گردند استفاده بیشتر از حد مجاز آن مشکلاتی را بو جود میآورد که بایستی به آنها توجه گردد از جمله میتوان به کاهش استحکام نهایی پس از خشک شدن ، خطر آتش سوزی ،تبخیر و خطر تنفس و مسمومیتهای ناشی از آن از اهمیت بالایی برخوردار است.
Polyurethane floor thinner
These diluents do not react and evaporate and usually have high evaporation and should not be used as much as possible, but in many projects their use is necessary to reduce viscosity and should be used to a limited extent. It should be noted that they should be considered, including the reduction of the final strength after drying, the risk of fire, evaporation and the risk of respiration and poisoning due to it is of great importance.
Types of epoxy hardener
Epoxy hardeners
Hardeners used in the flooring industry are mainly divided into the following two main groups
Polyamide hardeners: This group of hardeners are mainly used in epoxy and primer paints and are widely used due to the following suitable properties: They are flexible, have high resistance to impact and chemicals, and due to their high adhesion to concrete and good moisture resistance in industry. Flooring is mainly used as a hardener primer.
Polyamine hardeners
IH Polyamine hardener These hardeners are widely used in industry, especially in the flooring industry, and are used for floor coverings and layers. This hardener with relatively good chemical resistance is usually used in layers and veneers. The resin hardens after drying and dries at room temperature.
Epoxy floor thinner
Active or reactive epoxy thinners
These diluents participate in the reaction and form part of the non-volatile binder. These diluents are non-volatile and do not evaporate. These low-viscosity liquids, when mixed with the original resin, reduce the final viscosity. In addition, the diluents improve the resin flexibility and the air bubbles formed leave the reaction faster.
Inactive epoxy thinners
These diluents do not react and are volatile and usually have high evaporation. These solvents reduce viscosity and cause problems such as reduced final strength after drying, risk of fire, evaporation and risk of poisoning by it.
Polyurethane resin
Polyurethanes are polymers that have a urethane bond. This bond is formed by incremental adsorption between an isocyanate group and an active hydrogen compound. Isocyanate groups are highly reactive and therefore do not require an increase in temperature to advance their reaction. Polyurethane resistance to abrasion, impact and cracking is very good and hardens at ambient temperature and its resistance to sunlight is much higher than the epoxy group.
Zinc Rich primer coating
Zinc Reach coatings are paints that have large amounts of zinc particles in their formulation along with resin and other additives to protect steel or other metals that are in very hard and permanent corrosion conditions. Zinc metal powder in these coatings is sacrificed. In these environments, it prevents corrosion and decay of the main metal and gives it electrochemical or cathodic protection.
Zinc Rich epoxy coating is two-component as a primer and primer is applied on the metal in the first layer and is very suitable for protecting the metal in marine and wet environments.
