咨询热线:13931586578
重庆彩涂板生产厂家_重庆彩涂板价格_天诚涂镀彩板
您的位置: 主页 > 新闻资讯 > 行业动态 >

彩涂板面漆的作用以及哪些涂料可以做面漆

作者:天津天诚涂镀钢铁有限公司 编辑:天津天诚涂镀钢铁有限公司 来源: 天诚涂镀彩板 发布日期:2019-08-25 08:16
信息摘要:
  在彩涂施工中,面漆具有产品性能最关键的作用。它不仅提供彩涂板的装饰性,还使彩涂板具有各种实用的功能。彩涂板涂有不同面漆可在不同的领域应用,例如建材用彩涂板、家电用彩涂板、汽车用彩涂板等。因此面漆在卷材涂料的研究是最为透彻的一类涂料。目前已经工业化生产的卷材面漆主要有以下种类。   A聚酯类面漆   聚酯树脂按定义是指分子主链上含...

彩涂板面漆的作用以及哪些涂料可以做面漆

天津天诚彩板全国配送——重庆彩涂板生产厂家_重庆彩涂板价格   更多信息请拨打网站上方电话咨询了解


  在彩涂施工中,面漆具有产品性能最关键的作用。它不仅提供彩涂板的装饰性,还使彩涂板具有各种实用的功能。彩涂板涂有不同面漆可在不同的领域应用,例如建材用彩涂板、家电用彩涂板、汽车用彩涂板等。因此面漆在卷材涂料的研究是最为透彻的一类涂料。目前已经工业化生产的卷材面漆主要有以下种类。

  A聚酯类面漆

  聚酯树脂按定义是指分子主链上含有酯键的高分子材料,包括三种类型:醇酸树脂、饱和聚酯和不饱和聚酯。卷材工业中应用的聚脂专指饱和聚酯。

  聚酯树脂形成的漆膜具有优异的综合性能,并且性能的可调节范围很大,还能制成不同的应用形式,如溶剂型、水性、粉末、烘干或自干的涂料产品。在家电、汽车、金属家具、建材和罐头等行业得到大量使用。卷材用聚酯树脂主要是由芳香族二元酸、脂肪族二元酸和脂肪族多元醇经缩聚反应而成的含羟基聚酯树脂。

  彩涂板用聚酯类面漆是以上述聚酯为基本原料制备的涂料。交联树脂主要采用丁醇醚化三聚氰胺甲醛树脂(氨基树脂)。氨基树脂固化聚酯面漆具有良好的柔韧性、硬度和耐久性,同时具有良好的加工性,人们利用这类树脂在漆膜中的不均一性技术以提高其性能。因此是目前应用最为普遍的卷材面漆。

  B聚氨酯类面漆

  聚氨酯涂料以其优良的综合性能在不同领域得到广泛应用。1972年,德国首先将封闭多异氰酸酯和含羟基聚酯组成的聚氨酯涂料作为预涂卷材面漆用于铝卷材。1997年聚氨酯面漆已占预涂卷材面漆的5%,到1999年在预涂卷材涂料用合成树脂中居第四位,主要用在涂装建材、家用电器及车辆用预涂金属卷材。聚氨酯面漆(特别是脂肪族和脂环族多异氰酸酯制成的聚氨酯面漆)比氨基聚酯面漆有更好的柔初性、硬度和耐久性之间的平衡。聚氨酯面漆的另一特点是既可是烘烤型的,也可为常温自干型的。对同一配方的涂料来说,所用的多异氯酸组分被封闭后用于预涂卷材生产线,而未封闭的用于自干性双组分涂料,最后可得到结构和性能相同的漆膜,这对建材用预涂卷材在使用现场的修补工作十分有利。

  C聚丙烯酸酯类面漆

  聚丙烯酸酯涂料是一类用途广泛的涂料。聚丙烯酸酯树脂的主链是碳一碳键,对光热、酸、碱等均十分稳定,用它制成的涂料具有优异的户外耐久性和保光保色性,另外通过各种丙烯酸酯的共聚,可调节树脂的机械性能,因此综合性能比较全面。

  目前用于彩涂板面漆的聚丙烯酸酯涂料主要有三种类型:溶剂型热固化聚丙烯酸酯涂料、水稀释聚丙烯酸酯涂料和辐射固化聚丙烯酸酯涂料。

  溶剂型热固化聚丙烯酸酯涂料具有良好的抗沾污性、抗划伤性、高的光泽和硬度,以及优异的耐候性和耐化学性,这类涂料的不足之处在于很难得到硬度和韧性同时符合要求的产品。当硬度符合要求时,漆膜一般不能经受深度加工成型。目前这类涂料主要用作PVC塑溶胶面漆的配套底漆。

  为了进一步提高聚丙烯酸酯涂料的户外耐久性,20世纪60年代中期开发了有机硅改性聚丙烯酸酯涂料,试图以价格优势部分取代含氟涂料,用以制造外墙和屋面用预涂金属卷材,涂料中有机硅成分一般占成膜树脂的30%以上。实际应用中发现,有机硅的引人在提高耐候性的同时会使加工性有所下降,而且这一矛盾很难找到满意的平衡点,而且耐候性的提高与增加的成本相比也物非所值,因此目前这类涂料在彩涂板生产中已经较少使用。
 

In the process of color painting, topcoat plays a key role in product performance. It not only provides the decoration of the color coated plate, but also makes the color coated plate have various practical functions. Colored coated boards can be applied in different fields, such as building materials, household appliances and automotive painted boards. Therefore, topcoat in coil coating research is the most thorough type of paint. At present, there are mainly the following types of coil topcoats that have been industrialized.
 
 
A Polyester Topcoat
 
 
Polyester resin is defined as a kind of macromolecule material with ester bond in the main chain of molecule, which includes three types: alkyd resin, saturated polyester and unsaturated polyester. Polyester used in coil industry refers specifically to saturated polyester.
 
 
The film formed by polyester resin has excellent comprehensive properties, and its performance can be adjusted in a wide range. It can also be used in different forms, such as solvent-based, water-based, powder, drying or self-drying paint products. It is widely used in household appliances, automobiles, metal furniture, building materials and canned goods. Polyester resins for coil are mainly hydroxyl-containing polyester resins which are prepared by condensation of aromatic dibasic acids, aliphatic dibasic acids and aliphatic polyols.
 
 
The Polyester Topcoat for color coated sheet is a kind of coating prepared with the above polyester as the basic material. The crosslinking resin mainly uses butanol etherified melamine formaldehyde resin (amino resin). Amino resin cured Polyester Topcoat has good flexibility, hardness and durability, as well as good processability. People use the inhomogeneity technology of this resin in paint film to improve its performance. Therefore, it is the most widely used coil topcoat at present.
 
 
B Polyurethane Topcoat
 
 
Polyurethane coatings are widely used in different fields because of their excellent comprehensive properties. In 1972, Germany first used polyurethane coatings consisting of blocked polyisocyanate and hydroxyl polyester as pre-coated coil topcoat for aluminium coils. In 1997, polyurethane topcoat accounted for 5% of the pre-coated coil topcoat. By 1999, polyurethane topcoat ranked fourth among the synthetic resins for pre-coated coil coatings. It was mainly used for pre-coated metal coils for building materials, household appliances and vehicles. Polyurethane topcoats (especially polyurethane topcoats made of aliphatic and alicyclic polyisocyanates) have a better balance between flexibility, hardness and durability than amino polyester topcoats. Another characteristic of polyurethane topcoat is that it can be baked or self-drying at room temperature. For the same formulation of coatings, the polyisochloric acid components used are sealed for the pre-coated coil production line, while the unclosed two-component coatings are used for the self-drying coatings. Finally, the coatings with the same structure and performance can be obtained, which is very beneficial to the repair work of the pre-coated coils for building materials in the use site.
 
 
C-polyacrylate topcoat
 
 
Polyacrylate coatings are a kind of widely used coatings. The main chain of polyacrylate resin is carbon-carbon bond, which is very stable to light, heat, acid and alkali. The coatings made of polyacrylate resin have excellent outdoor durability and color retention. In addition, the mechanical properties of the resin can be adjusted by copolymerization of various acrylates, so the comprehensive properties are relatively comprehensive.
 
 
At present, there are three main types of polyacrylate coatings used in color coatings: solvent-based thermal curable polyacrylate coatings, water-diluted polyacrylate coatings and radiation curable polyacrylate coatings.
 
 
Solvent-based thermal curable polyacrylate coatings have good anti-contamination, scratch resistance, high gloss and hardness, excellent weather resistance and chemical resistance. The disadvantage of these coatings is that it is difficult to obtain products with both hardness and toughness that meet the requirements. When the hardness meets the requirements, the paint film can not generally undergo deep processing. At present, this kind of coating is mainly used as the matching primer of PVC plastic sol topcoat.
 
 
In order to further improve the outdoor durability of polyacrylate coatings, the silicone modified polyacrylate coatings were developed in the mid-1960s. The fluorine-containing coatings were partly replaced by the price advantage in order to manufacture the pre-coated metal coils for exterior walls and roofs. The silicone component in the coatings generally accounted for more than 30% of the film-forming resins. In practical application, it is found that the introduction of silicone will reduce the processability while improving the weatherability, and this contradiction is difficult to find a satisfactory balance point, and the improvement of weatherability is worthless compared with the increased cost. Therefore, at present, this kind of coating has been less used in the production of color coated panels.
天诚彩板推荐资讯
彩涂板涂层膜厚的在线检测系统的制作方法

彩涂板涂层膜厚的在线检测系统的制作方法

由于生产的连续性,彩涂板生产单位需要及时反映生产过程中工艺参数的变化,监控彩涂板的涂层厚度。一旦发现偏差,应立即进行调整,以确保生产过......
2021-12-21 16:13
天津彩钢板及彩钢板的规格

天津彩钢板及彩钢板的规格

唐山彩钢板规格_唐山家用彩钢板厂家_唐山天物彩板家用彩色钢板是什么?家用彩钢板是由卷冷弯成型的波纹压型钢板。这种板叫彩钢瓦。唐山彩钢板厂生产各种彩钢瓦。一般情况下,我们使用的彩钢瓦具有保温性和一般厚度。我国运用一系列规则来规范这些行为。 天津彩钢板及彩钢板规格简介 ......
2019-08-05 17:32
天诚分析彩钢复合板使用寿命

天诚分析彩钢复合板使用寿命

彩钢复合板一般理论使用寿命为50年,实际使用寿命为25~30年。 彩钢复合板:一种绝缘复合维修板,由彩色涂层钢板或其他板、板和绝缘芯材通过粘合剂(或泡沫)组成。 通常有爆炸复合、爆炸滚动复合、滚动复合等。复合材料可分为复合板、复合管、复合杆等。主要用于防腐、压力容器制造、电工建筑、石化、制药、轻工、汽车等行业。 ......
2019-07-11 10:51
天诚涂镀彩板与您分析彩板用途

天诚涂镀彩板与您分析彩板用途

彩涂板的市场用途主要分为三部分:建筑、家用电器和运输。其中,建筑业比重最大,其次是家电业,交通运输业比重较小。 1.彩涂板的基材可分为冷轧基材、热镀锌基材和镀锌基材。 2.第二步。彩涂板的涂层类型可分为:聚酯、硅改性聚酯、聚偏氟乙烯、塑料溶胶。 三。根据用户要求,彩涂板的颜色可分为橙色、乳黄色、深蓝、海蓝、鲜红、砖红色、象牙色、瓷蓝等......
2019-07-09 09:18

咨询热线

13931586578