สืบค้นงานวิจัย
A METHOD FOR PRODUCING CARBON BLACK SILICA MASTER BATCH
K.K Sasidharan - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): A METHOD FOR PRODUCING CARBON BLACK SILICA MASTER BATCH
ผู้แต่ง / หัวหน้าโครงการ (EN): K.K Sasidharan
บทคัดย่อ (EN): A method for production of carbon black/silica master batches through a modified coagulation technique of filler latex mixture that gives vulcanized with enhanced mechanical properties has been developed. The carbon black used was of Super Abrasion Furnace (SAF) and Intermediate Super Abrasion Furnace (ISAF) grades. Though they are expected to give enhanced mechanical properties like modulus tensile strength and abrasion resistance generally these properties are not fully realized as it is difficult to disperse these grades of carbon black due to the very small particle size being in the nano range. Further it is very difficult to disperse silica because compared to carbon black, with similar surface area and structure, silica shows a very low polymer- filler interaction and there is a strong tendency to agglomerate (without suitable filler modification or use of coupling agent) due to filler –filler interactions. The method consists of preparation of filler dispersion, in presence of suitable surfactant, addition of the dispersion to the fresh natural rubber latex under stirring, coagulation of the mixture by the addition of acid, dewatering of the coagulum, and drying to obtain filler incorporated NR. The filler-latex mixture coagulated immediately on addition of acids. Mixed filler containing master batch prepared by this method showed better cure characteristics as compared to the dry rubber incorporated mix. The mechanical properties like tensile strength, modulus, tear strength, abrasion resistance and hardness were superior for the vulcanizates prepared by the new method. The heat build – up values were lower for the latex filler master batches. Comparatively better ageing resistance was also recorded by these vulcanizates. The improvement in mechanical properties shown by the silica/SAF carbon black master batch or silica/ISAF carbon black master batches over the conventional mill mixed compounds (in the absence of any coupling agent) was attributed to better filler dispersion as evidenced from the result of filler dispersion data and enhanced level of vulcanization. The filler master batch prepared by this method showed enhanced cure characteristics, filler dispersion and superior mechanical properties as compared to conventionally prepared mixes. This is a simpler and cheaper method of master batch preparation than the earlier methods.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): latex
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

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K.K Sasidharan. "A METHOD FOR PRODUCING CARBON BLACK SILICA MASTER BATCH". ไม่ระบุหน่วยงาน. ม.ป.ป.

K.K Sasidharan. "A METHOD FOR PRODUCING CARBON BLACK SILICA MASTER BATCH". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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A METHOD FOR PRODUCING CARBON BLACK SILICA MASTER BATCH
K.K Sasidharan
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
A Process for Preparation of Carbon Black / Silica / Nanoclay Master Batch from Fresh Natural Rubber Latex The source of latex. Tracing carbon from leaf photosynthesis to latex metabolism in rubber trees using carbon stable isotopes Effect of Carbon Black and BaSo4 on the Thermo-Chemical Resistance of Natural Rubber Composite THE EFFECTS OF CARBON BLACK ON PROPERTIES OF RICE HUSK ASH FILLED HYBRID NATURAL RUBBER COMPOSITES Modification of NR/EPDM/Carbon Black Composites by Co-vulcanization using High Energy -radiation: Effect of Sensitizer Concentration โรค Black Point ของข้าวสาลี Development and validate method for zoonoses test kits CARBON, WATER AND ENERGY BALANCE OF RUBBER ECOSYSTEM นกแซงแซวหางปลา, Black Drongo Method verification of Isolated Chicken Eye Test
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