Which is better, PVC coil or TPO coil?
TPO waterproofing membrane is the use of advanced polymerization technique (EP) and ethylene propylene rubber polypropylene combined with thermal plastic polyolefin material as base material, with a polyester mesh fabric as a carcass reinforcing material, waterproof material and made of flexible sheet using advanced processing technology.
PVC waterproof coiled material is mainly composed of PVC resin, adding plasticizer and modified material. It is processed by rolling, extrusion and other main technological processes. It belongs to high polymer material.Material propertyA) aging resistance in general, long service life, high strength, good elasticity, excellent tensile properties, good resistance to high temperature and low temperature.(b) there is a plasticizer in the ingredients; the migration of plasticizer causes the coil to lose its flexibility, ductility and even fracture;The composition contains chlorine, and some harmful gas can be produced when the hot air is welded, so it is built in the closed underground space.
Material propertyA) TPO combines the excellent weatherability and durability of ethylene propylene rubber with the weldability of polypropylene.B) without plasticizers, has a high flexibility, will not be caused by plasticizer migration and brittle phenomenon, to maintain long-term waterproof function.C) a polyester fiber fabric is sandwiched between the fibers to provide high tensile properties, fatigue resistance, and puncture resistance. They are suitable for mechanically fixed roofing systems.D) excellent flexibility at low temperature, flexibility at -40, and mechanical strength at elevated temperatures.E) excellent chemical resistance, acid, alkali, salt, animal oil, vegetable oil, lubricating oil corrosion, algae, mildew and other microbial growth.F) heat resistant aging, good dimensional stability.(g) white based light color, smooth surface, high reflectivity, energy saving and pollution resistant.
