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  4. Formulation of waste plastic PVC granula...

Formulation of waste plastic PVC granulation for reference

Formulation of waste plastic PVC granulation


        Due to the greater degree of degradation of PVC products during use, their degradation is more severe when they are processed at high temperature again. Therefore, general recycled PVC must be added with some heat stabilizers during granulation, which can greatly improve the regeneration of pellets. Various indicators.

   (1) Formula of shoe sole material:
Formula 1:  Waste soft PVC  100kg
Flame retardant, colorant 2 kg
Petroleum esters   15 kg
(Eg: third-line oil, second-line oil, dioctyl ester, etc.)
Barium stearate 1 kg
Carbon black 0.1 kg

Recipe 2: Waste shoe sole material (referring to PVC sole) 100 kg
Dioxin 6 kg
Barium stearate 1 kg
Calcium stearate 1.5 kg
Chlorinated paraffin 1 kg

The functions and symbols of the above additives:

Flame retardant, colorant, ferric chloride: Fe2o3
Barium stearate, cadmium stearate, zinc, calcium, etc. are commonly used metal soap stabilizers, lubricants:
Barium stearate: BaSt
Cadmium stearate: CdSt
Zinc stearate: ZnSt
Calcium stearate: CaSt

        Chlorinated paraffin: The commonly used chlorine content is 42% and 52%. The advantages are low volatility, non-combustion, low price, and plasticizing effect, which is to improve the technical indicators of plastics.

PCL (chlorinated paraffin)-50 (how much chlorine content): refers to chlorinated paraffin with a chlorine content of 50%.

2. Recycled film material made from waste PVC film material  

Recipe:     Waste PVC film material  100kg
      Plasticizer (dioctyl ester) 5-15 kg
(For example: dioctyl ester, second factory ester, and such high cost, you can also use second-line oil, third-line oil, etc., low-cost oil ester depends on the actual situation)
      Stabilizer (trisalt)  About 3 kg
(Such as: tri-salt, di-salt, barium stearate, cadmium, zinc, calcium, etc. can be used at the same time, or can be used alone)
      Lubricant (barium stearate)    1 kg
(Eg: chlorinated paraffin or barium stearate, zinc, calcium, etc.)

        Note: Stabilizer and lubricant cannot use an auxiliary agent at the same time, that is, when barium stearate is used as a stabilizer, the lubricant should be chlorinated paraffin or paraffin. If you want to slightly change the performance of its plastic, you can also use the following method to simply improve a certain performance of the plastic:
   Waste: 100 kg, adding 2 kg of dioctyl ester can improve its softness.

If you want to know more about it please do not hesitate to contact me. WhatsApp:+86-15966835076.


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