环氧树脂在涂料行业中的用途及环氧树脂涂料的应用领域有哪些？

环氧树脂因其优异的特性在各个方面的用途非常广泛，主要应用于胶粘剂、涂料、电子电器材料、绝缘材料、工程塑料和复合材料等领域。市面上环氧树脂普遍用于制作成涂料、油漆，下面小编给您介绍下环氧树脂在涂料中的用途，一起了解下吧。

环氧树脂在涂料中的用途：

环氧树脂在涂料中的应用占较大的比例，它能制成各具特色、用途各异的品种。其共性：

(1) 耐化学品性优良，尤其是耐碱性。

(2) 漆膜附着力强，特别是对金属。

(3) 具有较好的耐热性和电绝缘性。

(4) 漆膜保色性较好。

但是双酚A型环氧树脂涂料的耐候性差，漆膜在户外易粉化失光又欠丰满，不宜作户外用涂料及高装饰性涂料之用。因此环氧树脂涂料主要用作防腐蚀漆、金属底漆、绝缘漆，但杂环及脂环族环氧树脂制成的涂料可以用于户外。

以下简单介绍一下相关应用

1、环氧树脂涂料是船舶中用量较大的涂料：
由于船舶长期处于海水侵蚀的环境中，金属腐蚀率较高，而环氧树脂涂料具有优异的防腐蚀性能，因此造船工业中使用的涂料主要使用环氧涂料，重防腐涂料是环氧树脂难以被替代的应用领域之一。
2、环氧树脂涂料是汽车工业中不可或缺的涂料：
 用于汽车整车底漆的环氧树脂涂料被称作电泳漆，由于高级轿车底漆的防锈必须达到十年保证，对环氧树脂涂料的要求很高，电泳漆的使用能够大大提高汽车底漆的防腐蚀性能。
3、环氧树脂可制成不含溶剂污染且可回收使用的固体型态的粉末涂料：
应用在金属表面需要装饰性及基本防锈功能的产品，包括家用电气、办公家具、金属建材、灯饰等。粉末涂料还可以通过改变固化剂和配方的组成达到重防腐防锈等级，可应用在包括输气管道和输油管道上。
4、环氧树脂涂料由于其耐腐蚀性和粘结性，可用于抗酸、硫等物质的食品罐头以及啤酒和饮料罐头内壁的防护涂料由于罐头内壁涂料与食物接触，涂料必须无毒性、密封性好，以免罐头内的产品变质，且不能有异味以免影响食品或饮料的风味，因此对环氧树脂涂料的要求很高。
5、环氧树脂紫外光固化涂料由于其固化速度快的特性，被广泛应用于纸张、木器、塑料和金属等基材表面，可提高产品的光泽度水性环氧树脂是将环氧树脂改性为水溶性，以水为溶解的介质，替代传统以溶剂为溶解的介质，广泛应用于混凝土封闭底漆和工业地坪涂料，属于绿色环保产品。

1. Epoxy resin coatings are widely used in ships

Due to the long-term marine environment, the metal corrosion rate is high, and the epoxy resin coating has excellent anti-corrosion performance, so the main coatings used in the shipbuilding industry are epoxy coatings, and the heavy-duty anti-corrosion coating is one of the application fields that epoxy resin is difficult to be replaced.

2. Epoxy resin coatings are indispensable in automobile industry

The epoxy resin coating used for automobile primer is called electrophoretic paint. Because the antirust of high-grade car primer must be guaranteed for ten years, the requirement for epoxy resin coating is very high. The use of electrophoretic paint can greatly improve the anti-corrosion performance of automobile primer.

3. Epoxy resin can be made into solid powder coating without solvent pollution and can be recycled

Products used on metal surface need decorative and basic antirust function, including household electrical, office furniture, metal building materials, lighting, etc. The powder coating can also achieve heavy-duty anti-corrosion and anti rust grade by changing the composition of curing agent and formula, and can be applied to gas and oil pipelines.

4. Because of its corrosion resistance and cohesiveness, epoxy resin coating can be used as the protective coating for the inner wall of acid and sulfur resistant food cans and beer and beverage cans. Because the coating on the inner wall of cans is in contact with food, the coating must be non-toxic and well sealed, so as to avoid the deterioration of the products in the cans and no peculiar smell, so as not to affect the flavor of food or beverage, Therefore, the requirements for epoxy coatings are very high.

5. Due to its fast curing speed, epoxy resin UV curable coatings are widely used on the surface of paper, wood, plastic and metal substrates, which can improve the gloss of products. Waterborne epoxy resin is a kind of water-soluble modified epoxy resin, which uses water as the dissolving medium instead of traditional solvent as the dissolving medium, It is widely used in concrete sealing primer and industrial floor coating, belonging to green environmental protection products.