Effects of Surface Modification with Stearic Acid on the Dispersion of Some Inorganic Fillers in PE Matrix
To evaluate the effects of surface modification with stearic acid on the dispersion of some inorganic fillers in polyethylene (PE) matrix, masterbatches containing 20–40 wt% of stearic acid uncoated and coated inorganic fillers and the linear low-density polyethylene (LLDPE) films containing 3–7% st...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Journal of Composites Science |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-477X/5/10/270 |
| _version_ | 1797514224329555968 |
|---|---|
| author | Thanh Tung Nguyen Van Khoi Nguyen Thi Thu Ha Pham Thu Trang Pham Trung Duc Nguyen |
| author_facet | Thanh Tung Nguyen Van Khoi Nguyen Thi Thu Ha Pham Thu Trang Pham Trung Duc Nguyen |
| author_sort | Thanh Tung Nguyen |
| collection | DOAJ |
| description | To evaluate the effects of surface modification with stearic acid on the dispersion of some inorganic fillers in polyethylene (PE) matrix, masterbatches containing 20–40 wt% of stearic acid uncoated and coated inorganic fillers and the linear low-density polyethylene (LLDPE) films containing 3–7% stearic acid uncoated and coated inorganic fillers were prepared. Two types of inorganic fillers used in the masterbatch included bentonite and silica. The structural change of inorganic fillers, whose surface was modified with stearic acid, was studied using IR spectroscopy. The dispersion of inorganic fillers in LLDPE matrix was evaluated using scanning electron microscope (masterbatch samples) and optical microscope (film samples). Changes in the melting temperature of LLDPE in the presence of inorganic fillers were evaluated by using differential scanning calorimeter (DSC). The mechanical properties of the films were evaluated according to ASTM D882. Surface-treated fillers with stearic acid dispersed in the masterbatches and films better than untreated fillers did. Stearic acid did not change the melting temperature of the filler/PE masterbatches. The mechanical properties of the films containing stearic acid coated fillers were higher than those containing unmodified fillers. |
| first_indexed | 2024-03-10T06:28:35Z |
| format | Article |
| id | doaj.art-214732b14ece42cab854bf3261592105 |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-10T06:28:35Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-214732b14ece42cab854bf32615921052023-11-22T18:43:48ZengMDPI AGJournal of Composites Science2504-477X2021-10-0151027010.3390/jcs5100270Effects of Surface Modification with Stearic Acid on the Dispersion of Some Inorganic Fillers in PE MatrixThanh Tung Nguyen0Van Khoi Nguyen1Thi Thu Ha Pham2Thu Trang Pham3Trung Duc Nguyen4Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 122300, VietnamInstitute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 122300, VietnamInstitute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 122300, VietnamInstitute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 122300, VietnamInstitute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 122300, VietnamTo evaluate the effects of surface modification with stearic acid on the dispersion of some inorganic fillers in polyethylene (PE) matrix, masterbatches containing 20–40 wt% of stearic acid uncoated and coated inorganic fillers and the linear low-density polyethylene (LLDPE) films containing 3–7% stearic acid uncoated and coated inorganic fillers were prepared. Two types of inorganic fillers used in the masterbatch included bentonite and silica. The structural change of inorganic fillers, whose surface was modified with stearic acid, was studied using IR spectroscopy. The dispersion of inorganic fillers in LLDPE matrix was evaluated using scanning electron microscope (masterbatch samples) and optical microscope (film samples). Changes in the melting temperature of LLDPE in the presence of inorganic fillers were evaluated by using differential scanning calorimeter (DSC). The mechanical properties of the films were evaluated according to ASTM D882. Surface-treated fillers with stearic acid dispersed in the masterbatches and films better than untreated fillers did. Stearic acid did not change the melting temperature of the filler/PE masterbatches. The mechanical properties of the films containing stearic acid coated fillers were higher than those containing unmodified fillers.https://www.mdpi.com/2504-477X/5/10/270polyethylenebentonitesilicainorganic fillersstearic acid |
| spellingShingle | Thanh Tung Nguyen Van Khoi Nguyen Thi Thu Ha Pham Thu Trang Pham Trung Duc Nguyen Effects of Surface Modification with Stearic Acid on the Dispersion of Some Inorganic Fillers in PE Matrix Journal of Composites Science polyethylene bentonite silica inorganic fillers stearic acid |
| title | Effects of Surface Modification with Stearic Acid on the Dispersion of Some Inorganic Fillers in PE Matrix |
| title_full | Effects of Surface Modification with Stearic Acid on the Dispersion of Some Inorganic Fillers in PE Matrix |
| title_fullStr | Effects of Surface Modification with Stearic Acid on the Dispersion of Some Inorganic Fillers in PE Matrix |
| title_full_unstemmed | Effects of Surface Modification with Stearic Acid on the Dispersion of Some Inorganic Fillers in PE Matrix |
| title_short | Effects of Surface Modification with Stearic Acid on the Dispersion of Some Inorganic Fillers in PE Matrix |
| title_sort | effects of surface modification with stearic acid on the dispersion of some inorganic fillers in pe matrix |
| topic | polyethylene bentonite silica inorganic fillers stearic acid |
| url | https://www.mdpi.com/2504-477X/5/10/270 |
| work_keys_str_mv | AT thanhtungnguyen effectsofsurfacemodificationwithstearicacidonthedispersionofsomeinorganicfillersinpematrix AT vankhoinguyen effectsofsurfacemodificationwithstearicacidonthedispersionofsomeinorganicfillersinpematrix AT thithuhapham effectsofsurfacemodificationwithstearicacidonthedispersionofsomeinorganicfillersinpematrix AT thutrangpham effectsofsurfacemodificationwithstearicacidonthedispersionofsomeinorganicfillersinpematrix AT trungducnguyen effectsofsurfacemodificationwithstearicacidonthedispersionofsomeinorganicfillersinpematrix |