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How to identify the PVC board material quality

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How to identify the PVC board material quality

[Abstract]:
Under you do not pay attention to, some PVC manufacturer even started adding a small amount of calcium powder, you believe that? A muffle furnace, can put all your raw materials testing again oh, muff
How to identify the PVC board material quality
 
Tips 1
 
Adopting muffle furnace burning ash         
Under you do not pay attention to, some PVC manufacturer even started adding a small amount of calcium powder, you believe that? A muffle furnace, can put all your raw materials testing again oh, muffle furnace and economic benefit; What kind of calcium carbonate, calcium granules, talcum powder, pass through the muffle furnace "samadhi true fire".       
 
 
Tips 2
 
The melting point meter measuring melting point
An important performance index of the lubricant, such as the melting point of PE wax is in commonly 105-110 ℃, some manufacturer with paraffin or hardened oil, melting point will be down.
 
 
Tips 3
Determination of the torque rheometer raw materials stability rheometer USES broad, can determine the processability of ACR, also can be used to measure the stability of various raw materials, if the quality is different, there will be showing on the curve, also can be used to measure the dynamic stability of the stabilizer is good or bad, is a machine in hand, buy materials.
 
 
Tips 4
PVC oven method
Some raw materials which may be doped with PVC, it is powder is difficult to identify, the oven can be compared to the test, 150 ° after a certain period of time, the first color and red, raw materials may contain PVC inside.
 
 
Tips 5
The sense of smell for determining waste is added
If the purchase of raw materials have pungent smell, may be the raw material with the rubbish in foreign countries, in the process of reproduction or use of the cheap or inferior raw materials production, maybe I don't feel very out of production for you, but have more influence on the performance of the products later
 
 
 
You learn how to identify the PVC plate material quality