Full form of Aclar?
Aclar is clear poly-chloro tri-fluoro-ethylene (PCTFE), it is a flexible thermoplastic film made from fluorinated-chlorinated resins
What is aclar?
Aclar is one best of the moisture vapor barriers among transparent film. It’s below some important properties of aclar foil.
- The best moisture barrier of any clear thermoplastic film.
- Bio-chemically inert
- Chemical-resistant
- Non- flammable
- Plasticizer and stabilizer free
- Process within the same range as other thermo-forming film
Aclar film can be laminated to a multitude of substrates, including polyvinyl chloride (PVC), Polyethylene tetra phthalate (PET), Polypropylene (PP), Cyclic Olefin Copolymer (COC), and ethylene vinyl alcohol (EVOH)
How Aclar PVC Foil Testing
Aclar combination with PVC makes a blister foil. It’s testing different – different parameters, we follow some parameters,
Description: A Clear transparent or colored rigid PVC film coated with ACLAR
PVC Identification by FTIR
This test is performed by FTIR instrument, cutting a sufficient sample of PVC/ACLAR foil and taking the PVC side of the sample. Its standard is PVC match with the same wave number. We plotted the spectra with wave number of 3800-650cm-1 standard and sample.
The IR Spectrum of the PVC side of the sample matches with the IR spectrum of the corresponding working standard.
PVC FTIR GRAPH
ACLAR Identification by FTIR
This test is performed by FTIR instrument, cutting a sufficient sample of PVC/ACLAR foil and taking the ACLAR side of the sample. Its standard is ACLAR match with the same wave number. We plotted the spectra with wave number of 3800-650cm-1 standard and sample.
The IR Spectrum of the ACLAR side of the sample matches with the IR spectrum of the corresponding working standard.
ACLAR FTIR GRAPH
Width: measure the selected sample with a measuring scale. It tolerance ±1 mm
Total Grammage OF ACLAR with PVC
Selected the samples at different positions and cut the sample 10 x 10 cm with the help of GSM Plate. Weight the sample at a calibrated analytical balance. Record the weight
Total GSM = Weight of sample in grams x 100 (if the sample is cut 10 x 10 cm)
Grammage of ACLAR
- Take the total Grammage sample and completely dip it in acetone for 5 to 10 min. check intermittency whether the ACLAR layer is separating or not
- The ACLAR layer will be separated and dried in a hot air oven 1050c for 5 min cool it and take the weight at analytical balance
Grammage of ACLAR = Weight in grams x 100 (if the sample 10 x 10 cm)
Grammage of PVC:
The PVC layer will absorb the solvent and swell and hence it will not be accurate to calculate the GSM. So we calculate the GSM of PVC with the help of the total of Grammage and Grammage of ACLAR.
Grammage of PVC= Total Grammage- Grammage of ACLAR
Total Thickness of ACLAR with PVC:
Selected samples in stock and measured the Total thickness with the help of a calibrated digital micrometer. Take reading and note it.
Thickness of ACLAR
Selected samples of Grammage of ACLAR and measured the Total thickness with the help of a calibrated digital micrometer. Take reading and note it.
Pinhole:
Selected the sample in a lot. The sample put on the platform of the pinhole tester instrument sample visually checked with the help of background light. It’s no hole appears on the surface of the sample.
Core diameter:
Selected the sample role to measure the core internal diameter with the help of measuring tape or measuring scale. Its limit is 75-77 mm
I am Maneesh Maurya a professional pharmaceutical blogger from India having rich experience in the pharmaceutical Quality control field.
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