Economic physical methods for surface treatment of plastics

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SUMMARY

The discussion centers on economic physical methods for surface treatment of plastics, specifically in the context of enhancing the bond strength of reprocessed polyethylene composites mixed with cement. The user initially attempted mechanical abrasion using sandpaper but observed minimal improvement in strength. Alternatives like Corona treatment were deemed too costly, prompting inquiries into other effective yet economical methods. Suggestions included flame treatment followed by light abrasion to potentially enhance bonding characteristics.

PREREQUISITES
  • Understanding of composite materials, particularly reprocessed polyethylene.
  • Familiarity with mechanical surface treatment techniques, such as abrasion.
  • Knowledge of bonding mechanisms between plastics and cement.
  • Awareness of flame treatment processes and their applications in material science.
NEXT STEPS
  • Research flame treatment techniques for plastics and their effectiveness in improving adhesion.
  • Explore alternative mechanical surface treatments beyond abrasion, such as plasma treatment.
  • Investigate the properties of different types of cement and potential additives that enhance bonding with plastics.
  • Study the economic implications of various surface treatment methods for material applications.
USEFUL FOR

Material science students, engineers working with composite materials, and professionals seeking cost-effective solutions for enhancing plastic-cement bonding.

sm.malkapur
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"economic physical methods" for surface treatment of plastics

I am a material science student, working on a plastic based composite (reprocessed polyethylene solid form, mixed with cement). Initially, the mechanical strength of composite was lesser, probably because of the poor bond characteristics of plastic with cement.

So to improve composite’s strength, i used some physical surface treatment methods (surface made rough by abrading with sand paper) on my plastics, so that I can improve its bond characteristics, but i did not get much improvements in strength.

I can’t go for chemical treatment. Surface treatment methods like “Corona treatment” will be a bit uneconomical for me. Hence, I want to know, are there any alternative "economic physical methods" that can be effectively used for surface treatment of plastics.
 
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You might try flame treatment (flame polishing) followed by light abrasion. What kind of cement are you using and are you using any additives in the cement?
 

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