CPVC的计算方法

大田

To calculate CPVC:
Use the Oil absorption of the pigment and extenders to find out what the minimum of binder is requered for the powders.
Then use the PVC calculation but put in the calculated amount of the binder intstead of the real amount in the formulation.
The outcome of this "PVC calculation is called the CPVC!
Since oil absoption is in weight and in the calculation is in volume: use for binder density : 0.95 kg/dm3.
at last:
When you divide PVC by CPVC you 'll have the PVB.
This value tells something about flexibility and outdoor durability.
The more you come to 1.0 the more you are reaching CPVC.

大概意思是：
根据配方中所用颜料和填料的吸油量，算出对应所需树脂的最小量值，此最小值为重量单位，将其除于树脂的比重0.95 kg/dm3，即为最小体积。
计算配方的PVC，再将上述最小体积取代配方中的树脂真实体积，所得结果为CPVC，将PVC 除于 CPVC，所得为PVB，PVB值越接近1，则PVC越接近CPVC。