PVC color masterbatch formula

September 20, 2008 on 8:08 pm | In Tech | 3 Comments

Instagram Блеск click (1)Facebook Блеск Carrier

https://www.instagram.com/alasar78/ Instagram Детейлинг Carrier resin carrying pigment, is a material which even disperse the pigment with the action of dispersant and processing modifer. Some  PVC color masterbatch imported is adopted special polyester as carrier. Normally it is also used PVC as carrier by choosing suspersion method with good fluidity.

https://www.facebook.com/autostudio.glyanec Facebook Автостудия Глянец (2)https://www.facebook.com/detailing.com.ua Facebook Детейлинг Plasticiser

https://www.instagram.com/detailing_studio Instagram Автостудия Глянец Molecules among polar PVC is great attraction, high viscosity, difficult melt and fluid, so it need to add plasticiser to reduce the action of molecules for resin, then to reduce the melt temperature and viscosity of PVC resin. In view of the hard and soft of masterbatch , it can add a kind or several compands  plasticiser as per requirement.  Normally DOP with good commonality is used as main
plasticiser, and epoxy compands with good volatility and stability as auxiliary plasticiser.

(3)Heat stabilizer

PVC is easy to break down with heat to release HCL gas, so it needs to add stabilizer. As color masterbatch is produced by twice-screw extruder, so it requests higher harsh for the heat stability of resin series.

(4)Working modifying agent

As color masterbatch, ideal fluidity should exceed natural pigment, namely masterbatch viscosity is lower than the natural pigment, so that it has even coloring. Adding high density pigment will largely increase the voscosity of PVC. Specially, when adding carbon with difficult dispersion and high oil adsorption, the series voscosity is still very high, since adding very high compands plasticiser. It will reduce effectively series melt viscosity by choosing suitable processing modifer, so it wil benefit for dispersion of pigment to ensure the stability of continue processing.

(5)Lubricant

In PVC resin, it needs to add inner and external lubricant and should keep balance in inner to reduce the highest torque of resin melting.and ensure the brightness of product apperance.

(6)Paint

PVC coloring  is nomally adopted inorganic and organic pigment. As PVC will break down to release HCL gas when it is in high heat, it will make some low acid-resistance colorant to change color, so the pigment used in PVC should meet as follows:
a、temperature tolerance,requesting pigment process not to be decomposed between 160~220℃ ;
b、be unacted on By HCl;
c、good  migration-resistance
d、resistance to elements good;
e、cheap and good。

If discrepancy exists between the English texts and the Chinese texts, the Chinese texts apply.

Hint:If there is any inconsistency or conflict between the English and Chinese versions, the Chinese version shall prevail for all purposes.

3 Comments »

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  1. sir i m student of BE in Polymer. My mailing address is “kaleem_iqbal09@yahoo.com”. now a days i m working on a project “design and development of colour masterbatch for PVC, polyolifin and co-polymer”. for this i need complete information. i shal be very thankful of u if you send informatoin on above mention mailing adress….
    thank

    Comment by kaleem iqbal — June 15, 2010 #

  2. i want information of pet iwill be thankful for you. iam from sudan

    Comment by mohamed saddig — November 24, 2010 #

  3. sir, i m an machine operator i need that how to make masterbachs

    Comment by siddhartha sasane — May 29, 2011 #

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