สืบค้นงานวิจัย
Processing of Viscosity Stabilized Ribbed Smoked Sheet Natural Rubber (RSS CV60)
S. Pol - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Processing of Viscosity Stabilized Ribbed Smoked Sheet Natural Rubber (RSS CV60)
ผู้แต่ง / หัวหน้าโครงการ (EN): S. Pol
บทคัดย่อ (EN): In Cambodia, the ribbed smoked sheet natural rubber (RSS 3) is produced by small and medium processing units with capacities ranging from 100 kg to 1000 kg/day. The sheets are commonly prepared from deliberate coagulation of fresh latex using formic acid. The drying methods are different among processors. The sheets are hung for dripping off excess water for few hours up to few days, in the shade or under direct sunlight, before entering into a smoked house for 2-4 days at temperatures of 45°C during the first day to 60°C during the last day. The RSS 3 has average values of Wallace plasticity (P0) of 45, plasticity retention index (PRI) of 90% and Mooney viscosity ML(1+4) at 100C (VR) of 85 uM. In an attempt to increase the revenue for RSS 3 processors, we carried out an experimental work to convert this grade into a viscosity stabilized grade with VR equal to 605 uM (RSS CV60). As confirmed by Wallace accelerated storage hardening test (WASHT), the RSS CV60 was successfully processed out of the latex of rubber trees of clone GT1 using the hydroxylamine neutral sulphate (HNS) as stabilizer at a concentration of 0.15% w/w dry natural rubber. The VR, the P0 and the PRI were, respectively, in the range of 60±5 uM, 31.5 and 90%. The vulcanization behaviour and tensile stress-strain properties are comparable to and better than commercialized TSR CV60.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): Hydroxylamine Neutral Sulphate (HNS).
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
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Processing of Viscosity Stabilized Ribbed Smoked Sheet Natural Rubber (RSS CV60)
S. Pol
การยางแห่งประเทศไทย
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The Role of Myanmar Rubber Planters and Producers Association (MRPPA) in Natural Rubber Development and its Recent Activities Addressing the Fears of the Natural Rubber Supply Chain Regarding the Dissemination of Genetically Modified Rubber Trees STUDY ON THE POTENCY OF SERRATIA BACTERIA USED TO CONTROL WHITE ROOT DISEASE IN RUBBER THE USE OF DEORUB LIQUID SMOKE FOR RIBBED SMOKED SHEET PROCESSING Viscosity Behaviour and its Influence in Natural Rubber And Synthetic Latex Processing and Product Manufacturing Systems Bentonite Modification by Combination of Physical and Chemical Process as Fillers of Natural Rubber/Organobentonite Nanocomposite FEASIBILITY OF RUBBER (Hevea brasiliensis Mull. Arg.) CULTIVATION IN THE EASTERN PROVINCE OF SRI LANKA; A NON TRADITIONAL AREA FOR RUBBER PILOT STUDY OF WASTEWATER TREATMENT IN NATURAL RUBBER PROCESSING FACTORY Advances on biodiversity of natural rubber biosynthesis and regulations on natural rubber biosynthesis OPTIMIZATION OF COMBINATION HIGH INTENSITY AND CONVECTION DRYNING PROCESS FOR NATURAL RUBBER PROCESSING
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