PTFE膜材料的特点：

1.强度高、耐久性好、防火难燃、自洁性好，而且不受紫外光的影响，其使用寿命在25年以上。

2.具有高透光性，并且透过膜材料的光线是自然散漫光，不会产生阴影，也不会发生眩光。

3.对太阳能的反射率高，所以热吸收量很少。即使在夏季炎热的日光的照射下室内也不会受太大影响。

PTFE的化学性能Chemical Properties:
Resistant against the strongest corrosive substances, like hydrochloric acid, hydrofluoric acid, sulphuric acid and nitric acid, hot sodium hydroxide solution or nitrogen oxides. PTFE is not soluble in most common solvents, such as alcoholes, esters, ketones and petrol.
PTFE能抵抗如盐酸、氢氟酸、硫酸、硝酸、热得氢氧化纳溶液或氮氧化物等最强腐蚀性物质。PTFE不能被一般常用的溶剂溶解，如酒精、酯类、酮类和汽油等。

PTFE( Polytetrafluorethylene)的分子结构Moleculare Structure:
• PTFE is characterized by long chain molecules consisting of recurring tetrafluorethylene monomer units.
• The carbon-fluorine bond has a dissociation energy of 460 kJ/Mol
and represents one of the strongest bonds in organic chemistry.
• The PTFE chain adopts a slightly twisting helix with a carbon-based core and an outer sheath of fluorine atoms which completely shields the chain backbone from chemical attack.
PTFE是由四氟乙烯单体重复聚合而成的长链分子结构。
氟碳化学键键能有460 kJ/Mol，是有机化学界里最强的化学键。

PTFE由2条螺旋状的聚合链缠绕在一起，中心是碳碳化学键，外面由氟原子组成了一个完整的保护层，有效的防止了其它化学物质的进攻。