單組份聚氨酯密封膠（高彈性！高粘接力）
聚氨酯密封膠的優(yōu)點(diǎn)和用途。聚氨酯膠屬于工業(yè)膠粘劑，主要有粘接、密封和表面處理，聚氨酯的優(yōu)點(diǎn)是非常多的，所以在建筑、交通、電子等行業(yè)都有廣泛的應(yīng)用，這里我們?yōu)榇蠹医榻B聚氨酯膠中的一種聚氨酯密封膠，下面所介紹的就是聚氨酯密封膠的一些優(yōu)點(diǎn)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.
聚氨酯密封膠的優(yōu)點(diǎn)：
The advantages of polyurethane sealant:
1、單組份、室溫濕氣固化，低揮發(fā)性氣味。
1, one component, moisture curing at room temperature, low volatile.
2、高觸變性，立面和頂部施工不流淌。
2, high touch denaturation, the elevation and the top construction do not flow.
3、具有高的拉伸強(qiáng)度、優(yōu)良的彈性。
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、抗老化和風(fēng)化，對(duì)基材無(wú)腐蝕、無(wú)滲透污染。
5, anti aging and weathering, no corrosion to the base material, no seepage pollution.
6、耐候性好，耐油性能優(yōu)良，耐生物老化，價(jià)格適中。
6, good weather resistance, good oil resistance, biological aging, moderate price.
7、表面可噴漆，可打磨。
7, the surface can be painted, can be grind.
8、可粘結(jié)多種材料，經(jīng)批準(zhǔn)可接觸食品。
8, can be bonded with a variety of materials, approved to contact food.
9、低溫柔軟性，性能可調(diào)節(jié)范圍較廣，機(jī)械強(qiáng)度大。
9, low soft and soft, the perbance can be adjusted wide and the mechanical strength is big.
10、粘接性好、復(fù)原性好，可適合于動(dòng)態(tài)接縫。
10, good adhesion, good resilience, and suitable for dynamic joint.
11、使用壽命可達(dá)15~20年。
11. The service life can be up to 15~20 years.
12、固化后膠層為彈性體，有良好的抗冷熱變化、抗應(yīng)力變化等性能。
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、對(duì)各種基材有廣泛的附著力。
13. It has extensive adhesion to various substrates.
聚氨酯密封膠的用途：
Use of polyurethane sealant:
聚氨酯密封膠主要用于客車(chē)空調(diào)、焊縫、行李箱等部位密封，船舶、機(jī)車(chē)、建筑、涂裝等行業(yè)密封及低強(qiáng)度粘接?？蛙?chē)內(nèi)飾、機(jī)車(chē)、集裝箱、冷庫(kù)、船舶等接縫填縫。船舶內(nèi)飾、甲板、焊縫及管道、建筑防水、防塵填縫密封。聚氨酯密封膠還可用于電纜(如地下電纜)的柔性接頭、電子元器件的灌封，以防塵抗震;用于隔熱體系如冷藏車(chē)、冷庫(kù)保溫層及低溫容器的粘接密封等。
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.
聚氨酯密封膠的缺點(diǎn)：
Defects of polyurethane sealant:
1、不能長(zhǎng)期耐熱。
1. It can't be heat-resistant for a long time.
2、淺色配方容易受紫外光老化。
2, the light color bula is easy to suffer from ultraviolet light aging.
3、單組份膠貯存穩(wěn)定性受包裝及外界影響較大，通常固化較慢。
3, one component storage stability by large packaging and outside influence, usually curing slower.
4、高溫環(huán)境下可能產(chǎn)生氣泡和裂紋。
4. Bubbles and cracks may be produced in high temperature environment.
5、許多場(chǎng)合需要底涂。
5. Many occasions require a bottom coating.
6、同時(shí)聚氨酯密封膠耐水性也較差，特別是耐堿水性欠佳。
6. At the same time, the water resistance of the polyurethane sealant is also poor, especially the alkali water resistance is not good.
