Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1669-1677 |
| Seitenumfang | 9 |
| Fachzeitschrift | Journal of applied polymer science |
| Jahrgang | 129 |
| Ausgabenummer | 4 |
| Frühes Online-Datum | 18 Dez. 2012 |
| Publikationsstatus | Veröffentlicht - 15 Aug. 2013 |
Abstract
A novel method has been developed to process highly filled polymer-particle composites to test samples as braze metal preforms. Polypropylene (PP), low-density polyethylene (LD-PE) and high-density polyethylene (HD-PE) were used as polymer matrices. Two types of nickel-based braze metal microparticles (Ni 102 and EXP 152) were compounded to the polymer matrices at filler contents up to 65 vol %. With enhancing filler content, torque at kneading rotors, and injection molding parameter were significantly affected by increasing viscosity. Injection molded composites show well-distributed spherical microparticles and particle-particle interactions. Polymers decompose residue-free at temperatures above 550°C, even for their composites. Adding particles reduces polymer crystallinity, whereas defined cooling at 5°C/min significantly increases the crystallinity and melt peak temperature of polymers compared to undefined cooling prior injection molding. Storage modulus of polymers increases significantly by adding filler particles. LD-PE + 65 vol % EXP 152 show the most suitable composite performance.
ASJC Scopus Sachgebiete
- Chemie (insg.)
- Allgemeine Chemie
- Werkstoffwissenschaften (insg.)
- Oberflächen, Beschichtungen und Folien
- Werkstoffwissenschaften (insg.)
- Polymere und Kunststoffe
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: Journal of applied polymer science, Jahrgang 129, Nr. 4, 15.08.2013, S. 1669-1677.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Processing and characterization of injection moldable polymer-particle composites applicable in brazing processes
AU - Kirchberg, Stefan
AU - Holländer, Ulrich
AU - Möhwald, Kai
AU - Ziegmann, Gerhard
AU - Bach, Friedrich Wilhelm
PY - 2013/8/15
Y1 - 2013/8/15
N2 - A novel method has been developed to process highly filled polymer-particle composites to test samples as braze metal preforms. Polypropylene (PP), low-density polyethylene (LD-PE) and high-density polyethylene (HD-PE) were used as polymer matrices. Two types of nickel-based braze metal microparticles (Ni 102 and EXP 152) were compounded to the polymer matrices at filler contents up to 65 vol %. With enhancing filler content, torque at kneading rotors, and injection molding parameter were significantly affected by increasing viscosity. Injection molded composites show well-distributed spherical microparticles and particle-particle interactions. Polymers decompose residue-free at temperatures above 550°C, even for their composites. Adding particles reduces polymer crystallinity, whereas defined cooling at 5°C/min significantly increases the crystallinity and melt peak temperature of polymers compared to undefined cooling prior injection molding. Storage modulus of polymers increases significantly by adding filler particles. LD-PE + 65 vol % EXP 152 show the most suitable composite performance.
AB - A novel method has been developed to process highly filled polymer-particle composites to test samples as braze metal preforms. Polypropylene (PP), low-density polyethylene (LD-PE) and high-density polyethylene (HD-PE) were used as polymer matrices. Two types of nickel-based braze metal microparticles (Ni 102 and EXP 152) were compounded to the polymer matrices at filler contents up to 65 vol %. With enhancing filler content, torque at kneading rotors, and injection molding parameter were significantly affected by increasing viscosity. Injection molded composites show well-distributed spherical microparticles and particle-particle interactions. Polymers decompose residue-free at temperatures above 550°C, even for their composites. Adding particles reduces polymer crystallinity, whereas defined cooling at 5°C/min significantly increases the crystallinity and melt peak temperature of polymers compared to undefined cooling prior injection molding. Storage modulus of polymers increases significantly by adding filler particles. LD-PE + 65 vol % EXP 152 show the most suitable composite performance.
KW - applications
KW - composites
KW - degradation
KW - differential scanning calorimetry (DSC)
KW - thermogravimetric analysis (TGA)
UR - http://www.scopus.com/inward/record.url?scp=84878013270&partnerID=8YFLogxK
U2 - 10.1002/app.38862
DO - 10.1002/app.38862
M3 - Article
AN - SCOPUS:84878013270
VL - 129
SP - 1669
EP - 1677
JO - Journal of applied polymer science
JF - Journal of applied polymer science
SN - 0021-8995
IS - 4
ER -