单组份聚氨酯密封胶（高弹性！高粘接力）

聚氨酯密封胶的优点和用途。聚氨酯胶属于工业胶粘剂，主要有粘接、密封和表面处理，聚氨酯的优点是非常多的，所以在建筑、交通、电子等行业都有广泛的应用，这里我们为大家介绍聚氨酯胶中的一种聚氨酯密封胶，下面所介绍的就是聚氨酯密封胶的一些优点和用途。

The advantages and uses of polyurethane sealants. The polyurethane adhesive belongs to industrial adhesives, mainly bonding, sealing and surface treatment, polyurethane has the advantages of very much, so it is widely used in construction, transportation, electronics and other industries, here we introduce a kind of polyurethane sealant polyurethane rubber, some advantages and uses the surface is polyurethane sealant the.

聚氨酯密封胶的优点：
The advantages of polyurethane sealant:
1、单组份、室温湿气固化，低挥发性气味。
1, one component, moisture curing at room temperature, low volatile.
2、高触变性，立面和顶部施工不流淌。
2, high touch denaturation, the elevation and the top construction do not flow.
3、具有高的拉伸强度、优良的弹性。
3. It has high tensile strength and excellent elasticity.
4、耐磨性、耐寒性，耐水性。
4, wear resistance, cold resistance, water resistance.
5、抗老化和风化，对基材无腐蚀、无渗透污染。
5, anti aging and weathering, no corrosion to the base material, no seepage pollution.
6、耐候性好，耐油性能优良，耐生物老化，价格适中。
6, good weather resistance, good oil resistance, biological aging, moderate price.
7、表面可喷漆，可打磨。
7, the surface can be painted, can be grind.
8、可粘结多种材料，经批准可接触食品。
8, can be bonded with a variety of materials, approved to contact food.
9、低温柔软性，性能可调节范围较广，机械强度大。
9, low soft and soft, the performance can be adjusted wide and the mechanical strength is big.
10、粘接性好、复原性好，可适合于动态接缝。
10, good adhesion, good resilience, and suitable for dynamic joint.
11、使用寿命可达15~20年。
11. The service life can be up to 15~20 years.
12、固化后胶层为弹性体，有良好的抗冷热变化、抗应力变化等性能。
12, the solidified rubber layer is elastic body, and has good resistance to cold and heat change, resistance to stress change and so on.
13、对各种基材有广泛的附着力。
13. It has extensive adhesion to various substrates.
聚氨酯密封胶的用途：
Use of polyurethane sealant:
聚氨酯密封胶主要用于客车空调、焊缝、行李箱等部位密封，船舶、机车、建筑、涂装等行业密封及低强度粘接。客车内饰、机车、集装箱、冷库、船舶等接缝填缝。船舶内饰、甲板、焊缝及管道、建筑防水、防尘填缝密封。聚氨酯密封胶还可用于电缆(如地下电缆)的柔性接头、电子元器件的灌封，以防尘抗震;用于隔热体系如冷藏车、冷库保温层及低温容器的粘接密封等。
Polyurethane sealants are mainly used for sealing of buses, air conditioners, welding seams and trunk, etc. the sealing and low strength bonding of ships, locomotives, buildings, coatings and other industries are also carried out. Seams and seams for passenger car interior, locomotive, container, cold storage, ship and so on. Ship interior, deck, weld and pipe, building waterproof, dustproof sealant seal. Polyurethane sealant can also be used for flexible joints of cables (such as underground cables) and electronic components for dust proof and aseismic. It is used for bonding and sealing of insulation systems, such as refrigerated trucks, cold storage insulation and cryogenic vessels.
聚氨酯密封胶的缺点：
Defects of polyurethane sealant:
1、不能长期耐热。
1. It can't be heat-resistant for a long time.
2、浅色配方容易受紫外光老化。
2, the light color formula is easy to suffer from ultraviolet light aging.
3、单组份胶贮存稳定性受包装及外界影响较大，通常固化较慢。
3, one component storage stability by large packaging and outside influence, usually curing slower.
4、高温环境下可能产生气泡和裂纹。
4. Bubbles and cracks may be produced in high temperature environment.
5、许多场合需要底涂。
5. Many occasions require a bottom coating.
6、同时聚氨酯密封胶耐水性也较差，特别是耐碱水性欠佳。
6. At the same time, the water resistance of the polyurethane sealant is also poor, especially the alkali water resistance is not good.