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岩棉板施工时用聚氨酯胶的作用是什么?

发布时间:2020-10-29 来源:http://www.jnhxtcg.com 浏览量:

岩棉板施工时用聚氨酯胶为双组分聚氨酯胶粘剂。聚氨酯胶粘剂(PU胶粘剂)是分子链中含有氨基甲酸酯基(-NHCOO-)或异氰酸酯基(-NCO)的胶粘剂,由异氰酸酯和含羟基化合物如聚酯、聚醚、蓖麻油或其他多元醇反应得到。它的性能优异,具有分子可设计性强、物性广泛、粘接适用范围广等特点,是合成胶粘剂中的重要品种之一。

In the construction of rock wool board, polyurethane adhesive is a two-component polyurethane adhesive. Polyurethane adhesive (PU adhesive) is an adhesive containing carbamate group (- nhcoo -) or isocyanate group (- NCO) in the molecular chain, which is prepared by the reaction of isocyanate with hydroxyl containing compounds such as polyester, polyether, castor oil or other polyols. It has excellent performance, strong molecular designability, wide physical properties, wide range of adhesive applications, and is one of the important varieties of synthetic adhesives.

双组分聚氨酯胶粘剂是PU中品种多、用量大、用途广的产品。该产品两个组分分别包装,易贮存,性能可调,具有粘合强度高、适用范围广、耐候性好等特点,在应用领域显示出独特的优势。

Two component polyurethane adhesive is a kind of Pu product with many varieties, large amount and wide application. The two components of the product are packaged separately, easy to store, adjustable performance, high adhesion strength, wide application range, good weather resistance and other characteristics, showing unique advantages in the application field.

聚氨酯胶粘剂主要分为多异氰酸酯和聚氨酯两大类,按使用方式来分聚氨酯胶粘剂可分为单组分和双组分两种。异氰酸酯基和氨酯基的极性、化学活性都很强,因此对多孔材料(皮革、泡沫等)和表面光洁的材料(玻璃、金属等)有着良好的化学粘结力。

岩棉板施工时用聚氨酯胶为双组分聚氨酯胶粘剂。聚氨酯胶粘剂(PU胶粘剂)是分子链中含有氨基甲酸酯基(-NHCOO-)或异氰酸酯基(-NCO)的胶粘剂,由异氰酸酯和含羟基化合物如聚酯、聚醚、蓖麻油或其他多(图1)

Polyurethane adhesives are mainly divided into two categories: polyisocyanate and polyurethane. According to the way of use, polyurethane adhesives can be divided into single component and two-component. The isocyanate group and the urethane group have strong polarity and chemical activity, so they have good chemical bonding ability to porous materials (leather, foam, etc.) and surface polished materials (glass, metal, etc.).

而且聚氨酯胶粘剂具有柔韧性好、耐震动性优良、耐冲击、耐磨、粘结强度大等优点,用途越来越广泛。双组分聚氨酯胶粘剂按有无溶剂可分为溶剂型和无溶剂型两大类。

Moreover, polyurethane adhesive has many advantages, such as good flexibility, good vibration resistance, impact resistance, wear resistance, high bond strength and so on. Two component polyurethane adhesives can be divided into solvent type and solvent-free type.

溶剂型聚氨酯胶粘剂技术成熟,但有机溶剂的挥发,不但浪费资源,还会威胁环境和生产安全。无溶剂型聚氨酯胶粘剂具有明显的优点:

Solvent based polyurethane adhesive technology is mature, but the volatilization of organic solvents not only wastes resources, but also threatens the environment and production safety. Solvent free polyurethane adhesive has obvious advantages

一、无溶剂挥发、使用完全;

1、 No solvent volatilization, completely used;

二、无需烘道除去溶剂,属于节能减排技术;

2、 It is an energy-saving and emission reduction technology without solvent removal by drying channel;

三、生产效率高,适用于自动化生产线。无溶剂型双组分聚氨酯(PU)胶粘剂具有粘接效果好、软硬可调、储存稳定和无溶剂挥发等优点,是PU胶粘剂行业的重要研究方向。

3、 High production efficiency, suitable for automatic production line. Solvent free two-component polyurethane (PU) adhesive has the advantages of good bonding effect, adjustable hard and soft, stable storage and solvent-free volatilization, which is an important research direction of PU adhesive industry.