عرض تفاصيل البحث

ادناه جميع التفاصيل الخاصة بالبحث المطلوب عرضه. توفر هذه المنصة معلومات اساسية حول البحث, لمزيد من التفاصيل يرجى متابعة التصفح من خلال الضغط على الرابط الاصلي للبحث او رابط DOI.

عنوان البحث
Sustainable Tertiary Acceierator Of Sulfur Vulcanization Of Nr And Sbr Rubbers From Natural Tree Extract
عنوان المجلة
Baghdad Science Journal
ISSN-2078-8665
تفاصيل النشر
سنة النشر - 2024 / الفهرس الاصلي للمجلة - 21 : 4 (عدد الصفحات 9)
تصنيف البحث
materials engineering - المجموعة الهندسية
رابط DOI
https://dx.doi.org/10.21123/bsj.2023.8120
رابط البحث
فتح في موقع المجلة الرسمي
البحث والاستدامة
الهدف 9– الصناعة والابتكار والبنية التحتية   المزيد حول هذا الهدف
البحث والمجتمع
نعم , يدعم
الكلمات المفتاحية
Conocarpus lancifolius leaf extract (CLLE), Curing system, Rubber, Scorch time, Vulcanization accelerator

اسم الباحثجهة الانتساببلد الباحث
عودة جبار بريهي جامعة بابل العراق
محمد حمزة المعموري جامعة المستقبل العراق
ناردين عدنان جامعة بابل العراق

"A novel natural, low cost and available accelerator for Styrene Butadiene Rubber (SBR) and Natural Rubber (NR) curing systems was prepared from waste agriculture. Dried powder of Conocarpus lancifolius leaf extract (CLLE) was added by (0.5, 1.0 ,1.5 and 2.0) wt% for SBR and NR master batches individually containing benzothiazole accelerators (MBT, MBTS). (CLLE) was selected due to the presence of Flavonoids, Saponins and phenols within its structure, which promotes hydrogen bonding (H-bonds) as a secondary bonding, which in turn enhances the curing rate. Results showed that CLLE has an ability to accelerate curing systems and its optimum concentration is 0.5 pphr for SBR and 1pphr for NR. Its effects on NR curing system is higher than on SBR system, where with SBR, the optimum curing time (tc90) decreased only by 2.42%, while with NR, it decreased by 17.74% and the curing rate index (CRI), increased with SBR only by 5.9% , while increased by 24.83% with NR. Also, CLLE addition reduced the scorch time (ts2) of both two rubbers. The ts2 for SBR-based samples are always higher than those for NR-based samples. In addition to that, CLLE caused opposite effects on torques of SBR and NR, and had no effects on tensile strength, slight decreasing in hardness, increasing in modulus at 300% elongation and increasing in stresses and strains before failure. The addition of CLLE increased curing rates due to the active components (Flavonoids, Saponins and phenols), which encouraged using these elastomeric products for bio applications and act as a coupling agent for hydrophilic and hydrophobic polymers."