Plastic Emissions

Plastic Emissions Testing

CASSEN Testing Laboratories offers a wide range of analysis for plastic precursors, additives, and by-products of decomposition. Our state-of-the-art equipment provides accurate and reliable analysis for different matrices and sampling methods. CASSEN has extensive experience in method development and interpretation of analytical data and provides high quality services to meet client needs.

Emissions from plastic products manufacturing facilities occur, where solid resins are heated and melted, liquid solvents and solvent blends are exposed to the atmosphere, additives are introduced, and where chemical reactions occur. Therefore, it is expected that emissions are influenced by chemical makeup of the process materials, the physical makeup of the plastic processing equipment, and the conditions under which processing occurs.

 

Thermoplastics

Starting Materials

By-products / Additives

PE

Ethylene Vinyl Acetate as Co-Polymer

PVC

Vinyl Chloride Phthalic Anhydride, Phthalic Esters

PP

Propylene High Decomposition Rates, Antioxidants added

PS

Styrene Divinylbenzene As Co-Monomers; Pentane, 1,1,1,3,3-Pentafluoropropane,Methylene Chloride as Foaming Agents

PET

Ethylene Glycol,Dimethyl Terephthalate Cyclohexanedimethanol as Additive,Methanol as By-Product

ABS, SA

Acrylonitrile, Styrene, 1,3-Butadiene Benzene, Ammonia, Propylene

PMMA

Methyl Acrylate,Methyl Methacrylate Methacrylic Acid And Butyl Acrylate asCo-Monomers

PA

Nylon 6,6-Hexamethylenediamine, Adipic Acid;Nylon 6 – Caprolactam Hydrogen Cyanide, Ammonia and other Amines from Thermal Oxidation

PC

Alkyl Diols, Alkyl Carbonates, Bisphenol A, Phosgene HCl, Cyclohexane used as Co-Monomer

 

 

 

Thermosetting Resins

Starting Materials

Additives/Foaming Agents

Epoxy

Epichlorohydrin, Bisphenols, Phenolamine, Mercaptoethanol Phenols, Thiols, Cyclic Anhydrides As Hardeners; Imidazole as Catalyst

Polyester

Caprolactone, Hydroxybutyrate, Trimethylene Carbonate Hcl As Catalyst, Methyl Ethyl Ketone Peroxide, Benzoyl Peroxide, Catalysts for Crosslinking

Urea

Urea -Formaldehyde Ammonia, Pyridine as Catalysts

Melamine

Melamine- Formaldehyde Butanol and Xylenes as Solvents,
Phenols as Binder

Phenolics

Phenol- Formaldehyde Hexamethylenetetramine used as Hardener

Polyurethane

Toluene Diisocyanate, Methylene Diisophenylcyanate, Ethylene Glycol 1,1,1,3,3-Pentafluoropropane,
1,1,1,2-Tetrafluoroethane,
1,2-Dichloroethylene, Pentane

In ambient air, VOC emissions can be transported by prevailing winds over long distances, making them not only a local urban issue but one that extends regionally into many smaller communities and rural areas. Characterisation of VOCs in the air will help to determine the actual source of emission of some of these harmful VOCs. Moreover, odorous organics generated in some of these operations can be traced to their origins.