2013年9月28日星期六

PVC PVC heat stabilizers affect the main reasons

PVC heat stabilizers of PVC to a certain extent affect the transparency . PVC heat stabilizers are also PVC additives can not be missing , so no PVC heat stabilizers for PVC will lose a lot  optical brightener of practical value. So people are constantly on the PVC heat stabilizers biochemical research . Here polyvinyl chloride PVC heat stabilizers affect the transparency of the three factors , and we do a study .
1 , the refractive index of stabilizers and heat stabilizers of PVC resin refractive index of 1.52 to 1.55 visible same or similar , then the better the transparency of PVC products , the lead stearate  transparency is low and vice versa .
2 , stabilizer molecules ( molecules ) of linear length
Heat stabilizer molecule ( or molecules ) linear length is less than 400 ~ 735nm wavelength of visible light refracting fewer higher degree of transparency , whereas less transparent .
3 , a heat stabilizer in PVC , " solubility ", ie compatibility
The so-called compatibility of two  PVC stabilizer for fittings or more substances refers to the mutual affinity when mixed . Good compatibility is possible to achieve dispersion of the molecular level . Thermal stabilizer in the molten state has good compatibility with PVC resin . Do not form a two -phase , that is no interface or the interface is not obvious, less refracted light , PVC products, higher transparency . Liquid stabilizer than the corresponding solid metal soap good compatibility in PVC , the linear molecule has a smaller length , and thus the higher the transparency of the PVC .

1 条评论:

  1. Hello! I just would like to give a huge thumbs up for the great info you have here on this post.
    ppr pipe
    pvc fittings

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