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[IR studies on the chloride polypropylene/alkyd resin blends]
Zhong-lei Fan1, Da-zhuang Liu, Gen-suo Zhao
1Institute of Chemical Engineering, Zhengzhou University, Zhengzhou 450002, China.
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|September 5, 2003
Summary
Fourier Transform Infrared (FTIR) spectra revealed that Chlorinated Paraffin (CPP) and alkyd resin blends are miscible below a 0.5 weight fraction of alkyd resin. Film glossiness confirmed miscibility, indicating phase separation above this threshold.
Area of Science:
- Polymer science
- Materials science
- Spectroscopy
Context:
- Understanding polymer blend miscibility is crucial for developing new materials with tailored properties.
- Alkyd resins are widely used in coatings and paints.
- Chlorinated paraffin (CPP) is a common additive in polymer formulations.
Purpose:
- To investigate the miscibility of Chlorinated Paraffin (CPP) with alkyd resin using Fourier Transform Infrared (FTIR) spectroscopy.
- To determine the miscibility threshold based on the weight fraction of alkyd resin in CPP-alkyd resin blends.
Summary:
- FTIR spectra analysis showed noticeable shifts in hydroxyl group bands for CPP-alkyd resin blends compared to pure alkyd resin.
- Miscibility was observed when the weight fraction of alkyd resin was less than 0.5.
- Immiscibility was confirmed for blends with an alkyd resin weight fraction greater than 0.5, further supported by film glossiness tests.
Impact:
- Provides critical data on CPP-alkyd resin miscibility, essential for optimizing formulations in coatings and other applications.
- The findings can guide the selection of appropriate mixing ratios to achieve desired material properties.
- Highlights the utility of FTIR spectroscopy and film glossiness as methods for assessing polymer blend miscibility.