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怎么样分辨保温材料的好坏?
怎么样分辨保温材料的好坏?
文章来源:本站原创  作者:网站管理员  浏览:7 更新时间:2019-05-01 14:20:42

 很多人在选择保温材料作为外保温主材时仅凭导热系数或吸水率的高低作为评价依据,而实际上导热系数是衡量保温材料的保温性能的一项指标,并且也是选择保温材料的重要参考项,但衡量保温材料好坏的指标并非只是导热系数这一项就能够决定的,一定要参考以下几项指标综合判断:

 
  1、吸水率:建筑保温是为建筑穿上一件棉袄,这件棉袄除了要保温外,还不能吸水。
 
  2、透气性:透气性这项技术指标是指水汽扩散阻力。如果外墙外保温系统透气性不好,水气扩散受阻,一是阻碍墙体向外排湿,影响饰面涂料的颜色;二是产生应力,使涂膜鼓泡,脱落;三是导致墙身含湿量逐步增加,产生冷凝水富集,从而给墙体热工、结构等性能带来不利影响,四是即使外墙外保温系统节能达标了,但却造成室内空气浑浊,不适合人居。
 
  3、粘结强度:反映判断墙体保温材料的粘结牢固程度,为减少和避免墙体保温系统的空鼓.开裂和脱落现象,确保安全耐久性的使用功能。
 
  4、抗拉强度:保温板要满足一定的抗拉强度或撕裂强度。
 
  5、抗压强度
 
  6、防火性能:防火性能会有相应的材料的防火性能级别,
 
  7、环保性
 
  8、使用寿命
 
  保温材料的选择可说是一项辛苦活儿,望朋友们能够仔细考量筛选,一定不要盲目的选择。了解详细情况可以到我们的官方网站www.linsoo.cn了解。

Many people choose thermal insulation materials as external thermal insulation main materials based on the thermal conductivity or water absorption rate as the evaluation basis, and in fact the thermal conductivity is an indicator of the thermal insulation performance of thermal insulation materials, and is also an important reference for selecting thermal insulation materials. item, However, the indicator for measuring the quality of thermal insulation materials is not only determined by the thermal conductivity factor, but must refer to the following indicators for comprehensive judgment:
1, water absorption rate: building insulation is for the building wearing a cotton-padded jacket, this cotton-padded jacket in addition to insulation, but also can not absorb water.
Permeability: Permeability This technical indicator refers to the diffusion resistance of water vapor. If the outer wall insulation system has poor air permeability and the water gas diffusion is blocked, the first is to prevent the wall from being wet and affect the color of the finish paint; The second is to produce stress, so that the coating drum bubble, fall off; The third is the gradual increase in the moisture content of the wall body, resulting in the enrichment of condensed water, which has a negative impact on the performance of the wall thermal engineering and structure. Fourth, even if the external insulation system of the outer wall is energy-saving, it has caused indoor air to become turbid. Not suitable for human settlements.
3, bond strength: reflects the determination of the bond strength of Wall insulation materials, in order to reduce and avoid the wall insulation system air drum-cracking and shedding phenomenon to ensure the use of safety and durability.
4, tensile strength: thermal insulation plate to meet a certain tensile strength or tear strength。
5, compressive strength
6, fire performance: fire performance will have the corresponding material fire performance level,
7, environmental protection
8, useful life
The choice of thermal insulation materials can be said to be a hard work, hope that friends can carefully consider screening, must not blindly choose. For more information, please refer to our official website, www.linso.cn.

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