Preparation and Characterization of Varying Carbon Black Particle Sizes on Poly(Epichlorohydrin) Elastomer: II. Effect of Damping and Temperature Scanning Stress Relaxation Properties

Davut Aksüt

Makale detayları

Preparation and Characterization of Varying Carbon Black Particle Sizes on Poly(Epichlorohydrin) Elastomer: II. Effect of Damping and Temperature Scanning Stress Relaxation Properties

Yazarlar:

Davut Aksüt

Yayıncı:

Turkish Chemical Society

Ana Başlıklar:

Polymer Science and Technologies

Dergi:

Journal of the Turkish Chemical Society Section B: Chemical Engineering Vol.8 Issue 2, pp.175-184

Belge Tipi:

Makale

Yayın Tarihi:

9/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001344876

pISSN:

2564-6907

Anahtar kelimeler:

Özet:

 This study investigates the influence of carbon black CB particle size on the curing behavior, damping characteristics, and temperature scanning stress relaxation TSSR properties of polyepichlorohydrin H55 elastomers. Curing analysis using a moving die rheometer MDR at 200 C revealed that the addition of CB significantly reduces the scorch time ts2 from 5.05 min unfilled H55 to 0.83 min for H55-N330, as well as the optimum cure time t90 from 8.85 min to 2.21 min. The ΔTorque values increased nearly threefold from 2.73 dNm H55 to 7.87 dNm H55-N330, indicating a substantial rise in crosslink density. Cyclic compression tests demonstrated enhanced hysteresis behavior and energy dissipation with CB reinforcement. The highest relative hysteresis loss tan δ was observed in CB-filled blends, with a notable decline for the smallest particle size N550, indicating a stronger filler-matrix interaction and reduced internal friction. TSSR results showed that initial stress σs increased from 0.15 MPa H55 to 0.85 MPa H55-N330, and crosslink density v rose from 20.9 molm³ to 77.3 molm³ H55-N550. Furthermore, the relaxation rate was inversely related to particle size, with the smallest particles N220 yielding the fastest relaxation and lowest TSSR index RI  0.54. These findings provide valuable insights for optimizing filler characteristics to enhance mechanical damping and stress relaxation in high-performance elastomer applications.

 This study investigates the influence of carbon black CB particle size on the curing behavior, damping characteristics, and temperature scanning stress relaxation TSSR properties of polyepichlorohydrin H55 elastomers. Curing analysis using a moving die rheometer MDR at 200 C revealed that the addition of CB significantly reduces the scorch time ts2 from 5.05 min unfilled H55 to 0.83 min for H55-N330, as well as the optimum cure time t90 from 8.85 min to 2.21 min. The ΔTorque values increased nearly threefold from 2.73 dNm H55 to 7.87 dNm H55-N330, indicating a substantial rise in crosslink density. Cyclic compression tests demonstrated enhanced hysteresis behavior and energy dissipation with CB reinforcement. The highest relative hysteresis loss tan δ was observed in CB-filled blends, with a notable decline for the smallest particle size N550, indicating a stronger filler-matrix interaction and reduced internal friction. TSSR results showed that initial stress σs increased from 0.15 MPa H55 to 0.85 MPa H55-N330, and crosslink density v rose from 20.9 molm³ to 77.3 molm³ H55-N550. Furthermore, the relaxation rate was inversely related to particle size, with the smallest particles N220 yielding the fastest relaxation and lowest TSSR index RI  0.54. These findings provide valuable insights for optimizing filler characteristics to enhance mechanical damping and stress relaxation in high-performance elastomer applications.

 This study investigates the influence of carbon black CB particle size on the curing behavior, damping characteristics, and temperature scanning stress relaxation TSSR properties of polyepichlorohydrin H55 elastomers. Curing analysis using a moving die rheometer MDR at 200 C revealed that the addition of CB significantly reduces the scorch time ts2 from 5.05 min unfilled H55 to 0.83 min for H55-N330, as well as the optimum cure time t90 from 8.85 min to 2.21 min. The ΔTorque values increased nearly threefold from 2.73 dNm H55 to 7.87 dNm H55-N330, indicating a substantial rise in crosslink density. Cyclic compression tests demonstrated enhanced hysteresis behavior and energy dissipation with CB reinforcement. The highest relative hysteresis loss tan δ was observed in CB-filled blends, with a notable decline for the smallest particle size N550, indicating a stronger filler-matrix interaction and reduced internal friction. TSSR results showed that initial stress σs increased from 0.15 MPa H55 to 0.85 MPa H55-N330, and crosslink density v rose from 20.9 molm³ to 77.3 molm³ H55-N550. Furthermore, the relaxation rate was inversely related to particle size, with the smallest particles N220 yielding the fastest relaxation and lowest TSSR index RI  0.54. These findings provide valuable insights for optimizing filler characteristics to enhance mechanical damping and stress relaxation in high-performance elastomer applications.

 This study investigates the influence of carbon black CB particle size on the curing behavior, damping characteristics, and temperature scanning stress relaxation TSSR properties of polyepichlorohydrin H55 elastomers. Curing analysis using a moving die rheometer MDR at 200 C revealed that the addition of CB significantly reduces the scorch time ts2 from 5.05 min unfilled H55 to 0.83 min for H55-N330, as well as the optimum cure time t90 from 8.85 min to 2.21 min. The ΔTorque values increased nearly threefold from 2.73 dNm H55 to 7.87 dNm H55-N330, indicating a substantial rise in crosslink density. Cyclic compression tests demonstrated enhanced hysteresis behavior and energy dissipation with CB reinforcement. The highest relative hysteresis loss tan δ was observed in CB-filled blends, with a notable decline for the smallest particle size N550, indicating a stronger filler-matrix interaction and reduced internal friction. TSSR results showed that initial stress σs increased from 0.15 MPa H55 to 0.85 MPa H55-N330, and crosslink density v rose from 20.9 molm³ to 77.3 molm³ H55-N550. Furthermore, the relaxation rate was inversely related to particle size, with the smallest particles N220 yielding the fastest relaxation and lowest TSSR index RI  0.54. These findings provide valuable insights for optimizing filler characteristics to enhance mechanical damping and stress relaxation in high-performance elastomer applications.

Makale detayları

Preparation and Characterization of Varying Carbon Black Particle Sizes on Poly(Epichlorohydrin) Elastomer: II. Effect of Damping and Temperature Scanning Stress Relaxation Properties

Yazarlar:

Davut Aksüt

Yayıncı:

Turkish Chemical Society

Ana Başlıklar:

Polymer Science and Technologies

Dergi:

Journal of the Turkish Chemical Society Section B: Chemical Engineering Vol.8 Issue 2, pp.175-184

Belge Tipi:

Makale

Yayın Tarihi:

9/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001344876

pISSN:

2564-6907

polyepichlorohydrin

Carbon Black

Damping properties

Temperature Scanning Stress Relaxation

cyclic loading

Sayı

Makale detayları

Preparation and Characterization of Varying Carbon Black Particle Sizes on Poly(Epichlorohydrin) Elastomer: II. Effect of Damping and Temperature Scanning Stress Relaxation Properties

Yazarlar: Davut Aksüt

Yayıncı: Turkish Chemical Society

Ana Başlıklar: Polymer Science and Technologies

Dergi: Journal of the Turkish Chemical Society Section B: Chemical Engineering Vol.8 Issue 2, pp.175-184

Belge Tipi: Makale

Yayın Tarihi: 9/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001344876

pISSN: 2564-6907

polyepichlorohydrin

Carbon Black

Damping properties

Temperature Scanning Stress Relaxation

cyclic loading

Sayı

Yazarlar:

Davut Aksüt

Yayıncı:

Turkish Chemical Society

Ana Başlıklar:

Polymer Science and Technologies

Dergi:

Journal of the Turkish Chemical Society Section B: Chemical Engineering Vol.8 Issue 2, pp.175-184

Belge Tipi:

Makale

Yayın Tarihi:

9/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001344876

pISSN:

2564-6907