Degradation behaviour of natural rubber–aluminium powder composites: effect of heat, ozone and high energy radiation

Vinod, V. S.; Varghese, Siby; Kuriakose, Baby

doi:10.1016/s0141-3910(01)00228-2

Cited by 96 publications

(45 citation statements)

References 15 publications

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“…For the potential to retain the mechanical properties of the blends after heat aging, the NR vulcanizates showed the lowest retention of tensile strength (63.1%) and elongation at break (77.9%) due to crosslink formation and main chain scission at high temperature [23]. The tensile strength and elongation at break after thermal aging of the HSNR/NR at a blend ratio of 50/50 was also retained at 96.0% and 93.0%, respectively.…”

Section: Thermal Aging Of Hsnr/nr Vulcanizatesmentioning

confidence: 99%

Improving thermal and ozone stability of skim natural rubber by diimide reduction

Simma

Rempel

Prasassarakich

2009

Polymer Degradation and Stability

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Section: Thermal Aging Of Hsnr/nr Vulcanizatesmentioning

confidence: 99%

Improving thermal and ozone stability of skim natural rubber by diimide reduction

Simma

Rempel

Prasassarakich

2009

Polymer Degradation and Stability

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“…According to Nakason et al [11] , the addition of filler loading in NR composites result in reduction in elasticity of rubber chains, therefore it will create more rigid vulcanizates. The higher retention in M100 and M300 (more than 100%) of aluminium and zinc-filled NR composites is shown after thermal ageing which might be due to the post cross linking of the rubber composites [4] . Figure 8 shows the effect of filler loading on elongation at break of aluminium and zinc-filled NR composites (before and after ageing).…”

Section: The Effects Of Ageing On Mechanical Propertiesmentioning

confidence: 97%

“…The major factors that control these properties are the surface chemistry of the filler, nature, shape and size of particles, size distribution and specific surface area etc. [4] .…”

Section: Introductionmentioning

confidence: 99%

Properties of Aluminium and Zinc-Filled Natural Rubber Composites

Anuar

Mariatti

Ismail

2007

Polymer-Plastics Technology and Engineering

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The effects of aluminium and zinc fillers on curing characteristics, mechanical, thermal, and electrical properties and swelling behavior of natural rubber (NR) were studied. Rheometer results indicated that the incorporation of aluminium and zinc fillers enhance the curing process. Higher difference torque (M H -M L ) values were observed for aluminium-filled NR composites compared to zinc. For mechanical properties, increasing zinc filler loading in NR composites resulted in increment of tensile strength, elongation at break, and tensile modulus. However, the addition of aluminium fillers in NR reduced the tensile strength and elongation at break but showed increment in tensile modulus. Aluminium-filled NR composites shows better retention in tensile strength after thermal ageing compared to that of zinc-filled NR composites. The better electrical conductivity was observed for the composites filled with aluminium filler. The investigations showed that the particle size of both fillers influences the electrical properties of NR composites. Swelling behavior indicates that swelling percentages of both fillers-filled NR composites decreased with increasing filler loading whereas zinc filler showed better filler-matrix interaction compared to aluminium filler at all filler loading. Scanning electron microscopy (SEM) on tensile fracture surface of aluminium-filled NR composites showed poorer filler dispersions and wettability than zinc-filled NR composites. Thermogravimetric analysis (TGA) results indicate that the aluminium-filled NR composites have higher thermal stability than do zinc-filled NR composites.

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“…Waktu vulkanisasi yang lebih lama akan meningkatkan terjadinya reaksi sambung silang (crosslink reaction) dan meningkatkan pembentukan ikatan sambung silang (crosslink formation) (Vinod et al, 2002). Hal ini dibuktikan dengan nilai densitas sambung silang yang lebih tinggi untuk waktu vulkanisasi selama 20 menit dibandingkan dengan waktu vulkanisasi selama 10 menit.…”

Section: Hasil Dan Pembahasan Densitas Sambung Silang (Crosslink Densunclassified

Pemanfaatan limbah kulit singkong termodifikasi alkanolamida sebagai bahan pengisi dalam produk lateks karet alam: Pengaruh waktu vulkanisasi

Harahap

Hadinatan

Hartanto

et al. 2015

MKKP

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The purpose of this research was to study the effect of drying time on the mechanical properties of natural rubber latex filled with cassava peel waste modified alkanolamide. Cassava peel is a waste, containing cellulose which is potential as fillers in natural rubber ABSTRAKPenelitian ini bertujuan untuk mempelajari pengaruh waktu vulkanisasi terhadap sifat mekanik produk lateks karet alam berpengisi kulit singkong termodifikasi alkanolamida. Kulit singkong merupakan limbah yang mengandung selulosa dan berpotensi untuk digunakan sebagai bahan pengisi dalam produk lateks karet alam. Kulit singkong dikeringkan dan dihaluskan hingga berukuran 100 mesh. Alkanolamida merupakan surfaktan nonionik yang disintesis dari bahan baku RBDPS (Refined Bleached Deodorized Palm Stearin) dan dietanolamina. Alkanolamida mengandung gugus polar yang dapat memodifikasi tepung kulit singkong dan membentuk ikatan kimia yang kuat dengan lateks karet alam. Proses pembuatan produk lateks karet alam dimulai dengan proses pravulkanisasi pada suhu 70°C hingga lateks karet alam telah matang dan bilangan kloroform telah mencapai angka 3. Lateks karet alam dicetak dengan menggunakan teknik pencelupan berkoagulan dengan metode pengeringan pada suhu 120°C selama 10 menit dan 20 menit. Hasil penelitian menunjukkan waktu vulkanisasi yang lebih lama dapat meningkatkan nilai densitas sambung silang dan kekuatan tarik produk lateks karet alam hingga penambahan 15 phr tepung kulit singkong.Kata kunci: waktu vulkanisasi, alkanolamida, kulit singkong, lateks karet alam. PENDAHULUANLateks karet alam merupakan hasil penyadapan pohon Hevea brasiliensis. Lateks karet alam segar mengandung 30-40% partikel hidrokarbon karet yang terdiri dari cis 1,4 poliisoprena dan 2-3% protein (Jayanthy & Sankaranarayanan,

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Degradation behaviour of natural rubber–aluminium powder composites: effect of heat, ozone and high energy radiation

Cited by 96 publications

References 15 publications

Improving thermal and ozone stability of skim natural rubber by diimide reduction

Improving thermal and ozone stability of skim natural rubber by diimide reduction

Properties of Aluminium and Zinc-Filled Natural Rubber Composites

Pemanfaatan limbah kulit singkong termodifikasi alkanolamida sebagai bahan pengisi dalam produk lateks karet alam: Pengaruh waktu vulkanisasi

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