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New flexible PVC compounds for indoor construction products exhibit up to 90% lower emission of volatile organic compounds (VOCs) than a comparable standard PVC and help manufacturers address other regulatory issues. The compounds are based on three innovations from the supplier, Teknor Apex Company:

Tim Somheil

June 18, 2014

3 Min Read
Flexible PVC compounds for indoor construction cut VOC emissions, provide regulatory solutions

 The compounds are based on three innovations from the supplier, Teknor Apex Company:

  • Additive formulations designed for low VOC emissions.

  • Non-phthalate plasticizers, including types that generate lower VOC emissions than conventional plasticizers.

  • Bio-based plasticizers derived from renewable plant byproducts, also including versions with low VOC emissions.

 These three innovations can be combined into compounds offering reductions in VOC emissions ranging from 37% to 90%. Compounds that contain alternative plasticizers enable manufacturers to address market requirements for elimination of phthalates. Compounds with bio-based plasticizers also provide for a substantial reduction in the overall carbon footprint of PVC.

Most of the new compounds were added to the company's Apex product line. Those compounds with bio-based plasticizers will be offered under the company's recently introduced BioVinyl brand.

The supplier suggests these products for extruded, calendered, coated, and molded applications for institutional and residential indoor building and furnishing products. Example applications include office partitions, furniture trim, window treatments, baseboards, and flooring. Custom formulations of the low-VOC compounds are available.

“Teknor Apex has developed this suite of low-VOC compounds to help manufacturers meet building codes with increasingly stringent standards for indoor air quality and to comply with FloorScore and UL Greenguard certification requirements,” said John Macaluso, industry manager for consumer and industrial products for the Vinyl Division.

Because half of the PVC polymer is derived from seawater and typical plasticizer loadings are 30%, the substitution of bio-based plasticizers for conventional phthalates makes possible a significant reduction in cumulative energy demand (feedstock and production) with BioVinyl compounds in comparison with many non-PVC plastics.

New-Generation Flexible PVC Compounds with Low Volatile Organic Compound (VOC) Content

 

 

 

VOC Content (1)

Compound

Plasticizer

Additives

Total, parts per million (ppm)

Apex 77 Shore A

Phthalate

Standard

187

[Control]

Apex 77 Shore A

Phthalate

Low-VOC

59

LVOC

Apex 77 Shore A

Non-phthalate

Standard

117

NP

Apex 77 Shore A 

Non-phthalate

Low-VOC

19

NP/LVOC

BioVinyl 65 Shore A 

Bio-based

Low-VOC

36

LVOC

BioVinyl 65 Shore A LVOC

Bio-based

Low-VOC

20

LVOC (2)

1) Values from Teknor Apex-developed test for measuring all VOCs in excess of 2 ppm. VOCs are collected for 30 minutes using thermal desorption at 120 degrees C, then analyzed by means of gas chromatography and identified with a mass spectrometer. 

2) Special low-emission formulation.

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