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场馆用膜材料需要满足的特性
来源:http://www.sdcscp.com/ 发布时间:2022-03-03
光学性能
optical performance 
光学性能可滤除大部分紫外线,防止内部物品褪色。其对自然光的透射率可达25%,透射光在结构内部产生均匀的漫射光,无阴影,无眩光,具有良好的显色性.○隔音性能
Optical performance can filter out most ultraviolet rays and prevent internal items from fading. Its transmittance to natural light can reach 25%. The transmitted light produces uniform diffuse light inside the structure, without shadow and glare, and has good color rendering ○ sound insulation performance
单层膜隔音仅有10dB左右,因此,单层膜结构建筑往往用于对隔音要求不是太高的活动场所,而双层膜或多层膜其隔音性能则大大提高。
The sound insulation of single-layer membrane is only about 10dB. Therefore, single-layer membrane structure buildings are often used in activity places where the sound insulation requirements are not too high, while the sound insulation performance of double-layer membrane or multi-layer membrane is greatly improved.
防火性能
Fire performance
膜建筑作为永久性或半永久性建筑,膜材本身必须应完全满足有关建筑材料防火指标的要求。如今广泛使用的膜材料能很好地满足对于防火的需求,具有卓越的阻燃和耐高温性能。
膜结构停车棚
As a permanent or semi permanent building, the membrane material itself must fully meet the requirements of fire prevention indicators of building materials. Nowadays, the widely used membrane materials can well meet the needs of fire prevention, and have excellent flame retardant and high temperature resistance.
保温隔热
Thermal insulation
单层膜材料的保温性能与砖墙相同,优于玻璃。双层膜及内部加挂保温层,保温性能则大大提高,比普通建筑节能70%以上。
The thermal insulation performance of single-layer membrane material is the same as that of brick wall and better than that of glass. The double-layer membrane and internal thermal insulation layer can greatly improve the thermal insulation performance, which is more than 70% energy-saving than ordinary buildings.
自洁性能
Self cleaning performance
自洁性就是膜材料本身的防污自洁性能。一般建筑用PVC膜材料,在PVC涂层外,再加一层PVF(聚氟乙烯)或PVDF(聚二氟乙烯)或有机硅面层,能有效地改善其自洁性。
Self cleaning is the antifouling and self-cleaning performance of membrane material itself. For PVC membrane materials for general buildings, a layer of PVF (polyvinylidene fluoride) or PVDF (polyvinylidene fluoride) or silicone surface layer is added to the PVC coating, which can effectively improve its self-cleaning.
膜材耐久性
Membrane durability
膜材的耐久性不仅与其布基所用材料本身的性质有关,而且不同的涂层种类,对布基的保护程度各不相同,也影响着膜材的使用寿命。膜材老化的主要因素是:紫外线照射下,聚合物自身的化学不稳定。膜材质保期在10年~15年,但到目前为止,PTFE材料工程有的已超过35年,PVC材料工程有的已超过25,而继续正常使用。
The durability of the film material is not only related to the properties of the material used for the cloth base, but also different coating types have different degrees of protection for the cloth base, which also affects the service life of the film material. The main factor of membrane aging is the chemical instability of the polymer under UV irradiation. The warranty period of membrane material is 10-15 years, but so far, some PTFE material projects have exceeded 35 years and some PVC material projects have exceeded 25 years, and continue to be used normally.
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