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    环氧地坪漆的优良特点体现在哪些方面?

    2018-10-26 07:24:40 无锡盛发地坪科技有限公司 阅读

    环氧地坪漆的主要成份是环氧树脂,但环氧树脂本身是不会固化的,它具有热塑性,需要与固化剂进行反应,交联而成网状结构的大分子,从本身的热塑性变为热固化性,在环氧树脂中加入一定比例的固化剂,施工在地面后,会发生固化反应,显示出各种优良的性能。环氧地坪涂料的各类很多,有平涂型、自流平型、防静电型、防腐蚀型、彩砂型等,主要根据客户的需求来设计。

    Epoxy resin is the main component of epoxy floor paint, but the epoxy resin itself will not be cured, it has thermoplasticity, need to react with curing agent, cross-linked into a network of macromolecules, from its thermoplasticity to thermal curing, in the epoxy resin with a certain proportion of curing agent, after the construction of the ground, Curing reactions will take place, showing various excellent properties. There are many kinds of epoxy floor coatings, such as flat coating, self-leveling, anti-static, anti-corrosion, color sand mold, etc., mainly according to customer needs to design.

    有客户的食品厂想做环氧地坪,但不知道是选择环氧地坪还是密封固化剂地坪,客户要求我将这两种环氧地坪各自的优缺点列出来供他参考,那么,环氧地坪漆有哪些特点呢?

    A customer's food factory wants to do floor, but do not know whether to choose epoxy floor or sealant floor, the customer asked me to these two kinds of floor their respective advantages and disadvantages listed for his reference, then, what are the characteristics of epoxy floor paint?

    1.优良的附着力:环氧地坪涂料含有许多羟基及醚键,所以能很好的吸附在素地上。而且环氧树脂固化时体积收缩率低(仅2%左右),所以环氧地坪层对金属(钢,铝),陶瓷,玻璃,混凝土,木材等极性底材都有优良的附着力。

    1. Excellent adhesion: Epoxy floor coating contains a lot of hydroxyl and ether bonds, so it can be well adsorbed on the vegetable floor. And the volume shrinkage of epoxy resin curing is low (only about 2%), so the epoxy floor has excellent adhesion to metal (steel, aluminum), ceramics, glass, concrete, wood and other polar substrates. 2.抗化学品性能优良:环氧树脂中仅有烃基及醚键,没有酯键,所以耐碱性尤其突出,一般的油性或醇酸防锈底漆。在腐蚀时阴极部位呈碱性,会被皂化破坏。环氧地坪涂料耐碱而且附着力好,故可大量用作防腐蚀底漆。又因环氧地坪涂料固化后呈三维网状结构,又能耐油类的浸渍,也可大量用于油槽,油轮,飞机的整体油箱内壁衬里等的防腐。

    2. Excellent chemical resistance: epoxy resin only alkyl and ether bond, no ester bond, so alkali resistance is particularly prominent, the general oil or alkyd anti-rust primer. The cathode is alkaline when it is corroded, and it will be saponified and destroyed. The epoxy floor coating has good alkali resistance and good adhesion, so it can be used as anticorrosive primer in large quantities. Because the cured epoxy floor coating has a three-dimensional network structure, and can be resistant to oil impregnation, but also a large number of oil tanks, tankers, aircraft, the overall tank lining and other anti-corrosion.

    3.韧性好:与热固性酚醛树脂涂料相比较,环氧地坪涂料含芳环而坚硬,有醚键便于分子链的旋转,具有一定的韧性,而不像酚醛树脂很脆(因其交联间距比环氧树脂短)。环氧树脂交联间距长,便于内旋转,环氧树脂的分子量越大则交联间距越大。

    3. Toughness: Compared with thermosetting phenolic resin coatings, epoxy floor coatings contain aromatic rings and are hard, have ether bonds to facilitate the rotation of molecular chains, and have a certain degree of toughness, unlike phenolic resin is very brittle (because of its shorter cross-linking spacing than epoxy resin). The crosslinking spacing of epoxy resin is long and easy to rotate inside. The larger the molecular weight of epoxy resin, the larger the crosslinking spacing.

    4.环氧树脂对湿面有一定的润湿力,尤其在使用聚酰胺树脂作固化剂时,可制成水下施工涂料,能排挤物体表面的水而涂布,可用于水下结构的抢修和水下结构的防腐蚀施工。

    4. Epoxy resin has a certain wetting force on the wet surface. Especially when polyamide resin is used as curing agent, it can be made into underwater coating, which can expel water from the surface of the object and be applied to the rush repair of underwater structures and the anticorrosion construction of underwater structures.

    5.环氧树脂本身的分子不高,能与各种固化剂配合制造无溶剂,高固体分粉末涂料及水性涂料,符合环保要求,并能获得厚膜涂层。

    5. Epoxy resin itself is not high molecular weight, can be used with a variety of curing agents to produce solvent-free, high solid powder coatings and water-based coatings, in line with environmental requirements, and can obtain thick film coating.

    6.环氧树脂含有环氧基及羟基两种活泼基团,能与多元胺,聚酰胺树脂,酚醛树脂,氨基树脂,多异氰酸酯等配合,制成多种涂料,既可常温干燥,又可高温烘烤,以满足不同的施工要求。

    6. Epoxy resin contains two active groups of epoxy group and hydroxyl group. It can be combined with polyamine, polyamide resin, phenolic resin, amino resin, polyisocyanate and so on to make a variety of coatings. It can be dried at room temperature and baked at high temperature to meet different construction requirements.

    7.环氧树脂具有优良的电绝缘性质,可用于浇注密封,浸渍漆。环氧树脂具有很多优点,但也存在不足之处,其光老化性差。环氧树脂中含有芳香醚键,漆膜经日光(紫外线)照射后易降解断链,所以户外耐候性较差。故通常的双酚A系环氧树脂不耐户外日晒,漆膜易失光变色,然后粉化,不宜用作户外的面漆。

    7. epoxy resin has excellent electrical insulation properties and can be used for pouring sealing and impregnating varnish. Epoxy resin has many advantages, but there are also shortcomings. Its photoaging property is poor. Epoxy resin contains aromatic ether bonds, the film after sunlight (ultraviolet) irradiation is easy to degrade broken chain, so the outdoor weather resistance is poor. Therefore, the usual bisphenol A epoxy resin is not resistant to outdoor sunlight, the film is easy to lose light and color, and then powder, not suitable for outdoor topcoat.



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