การศึกษาแรงกระทำระหว่างยางกับสารตัวเติมในคอมโพสิทและวัลคาในเซทของยางผสม

Study of Rubber-Filler Interaction of Composites and Vulcanizates for Rubber Blends

Name: สราวุฒิ ด่านเฉลิมวงศ์

Name: Sarawut Danchaloemwong

Organization : มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี. คณะวิทยาศาสตร์. สาขาวิชาเคมีอุตสาหกรรม

keyword: สมบัติเชิงกล

; Mechanical properties of rubber

Abstract: The research study of rubber-filler interaction of nitrile iubberlnatural rubber (NBR/NR)and acrylic iubberli~aturalr ubber (ACMINR) coinposites was investigated through bound lubber,rheometric torque values, processibility and dynamic properties and also mechanical propertiesof ACMINR vulcanizates. It was found that the bound rubber and the torque value results ofoxidized carbon black-filled rubber composites were found to be higher than original carbonblack-filled rubber comnposites. This showed that the increase of functional groups on the blacksurface caused strong rubber-filler interaction. The bound rubber content decreased withincreasing NBR and ACM composition in NBR/NR and ACMINR composites, respectively. Thetorque value of NBR/NR composites decreased with the increase of NBR content. Thisobservation is attributed to competition between the NBR phase and the NR phase to interactwith carbon black particle while the torque value of ACMINR coinposites increased with theACM content. This might be caused by the reinarkable ACM-ACM interaction. Dynainicproperties at various of frequencies, temperatures and strains of carbon black-filled NBR/NR andACM/NR blends were determined. It was found that nitrile ntbber has the highest storagemodulus and loss modulus as compared to those of NR and all the NBRINR blends whenincreasing of frequency, temperature and strain. ACM has lower loss modulus than that of NRwith the increase of frequency. It is reinarkable that tan 6 of the only blend of ACM30INR70was observed to increase higher than that of NR, especially at high frequency. Obviously,adding ACM70% (wlw) in blend showed the highest storage inodulus and loss modulus astemperature and strain increased. Before and after of heat and oil aging, the hardness ofACM/NR vulcanizates increased with the ACM content except the hardness of toluene agedACMINR vulcanizates decreased. The obvious reduction of tensile strength of ACM/NRvulcanizates with ACM content was observed regardless aging methodology. It was interestingthat the discrepancies of tensile strength between aged and control ACM/NR vulcanizates werefound to be small, except, heat aged ACM/NR vulcanizates. It was noticed that significantincrease of elongation at break was observed for ACMINR vulcanizates having ACM content of70%(wlw) regardless control or aged vulcanizates.

มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี. สำนักหอสมุด

Address: กรุงเทพมหานคร (Bangkok)

Email: info.lib@mail.kmutt.ac.th

Name: เพลินพิศ บูชาธรรม

Role: อาจารย์ที่ปรึกษา

Created: 2544

Issued: 2008-02-08

Modified: 2008-02-08

วิทยานิพนธ์/Thesis

CallNumber: CHM369

tha

DegreeName: วิทยาศาสตรมหาบัณฑิต

Level: ปริญญาโท

Descipline: เคมีอุตสาหกรรม

Grantor: มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

©copyrights มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

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1	CHM369.pdf	2.36 MB	98	2026-05-26 18:16:01
2	CHM369ab.pdf	46.07 KB	42	2026-05-26 18:16:01
3	CHM369ab.txt	2.68 KB	35	2026-05-26 18:16:01

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