Rubber Knowledge II: Natural Rubber(NR)
Say natural rubber et natural ya polimer ya inala ed latex na kiew ya Hevea brasiliensis. Nagawa itan ya elastic solid diad panamegley na saray proseso a singa say panag-coagulate tan panag-dry. Say manunan kabiangan to et say cis-1,4-polyisoprene (ya mankantidad na 91% anggad 94%), tan say arum et aliwan goma a singa saray protina tan fatty acid.
Manunan Katangian:
- Pisikal iran Kablian:
(1) Atagey ya elasticity tan wear resistance: Say tensile strength et atagey (16.7 - 34.3 MPa), say elongation rate et nayarin onabot ed 650% - 900%, tan say recovery elasticity et ekselentin (70% - 95%)
(2) Makaadapta ed temperatura: Say andukey a temperatura ed trabaho: -55°C anggad +70°C. Antikey a panaon ya panag-anos: anggad 100°C. Punto na inka-brittle ed abeban temperatura: manga -50°C.
(3) Electrical insulation: Maong ya insulasyon, matukoy parad saray alambre tan kable
- Saray Kemikal ya Kakapuyan:
(1) Makapuy ya resistensya na larak: Mainomay ya onkupas ed mineral oil tan gasolina (swellling rate: 80% - 300%)
(2) Makapuy ya resistensya ed itatatken: Mainomay ya naapektoan na ozone, ultraviolet rays tan atagey iran temperatura, tan kaukolan so pangiyarum na anti-aging agents.
(3) Limitado so resistensya ed saray asido tan alkali: Saray makapuy ya asido et nayarin itepel, balet saray mabiskeg ya asido (singa say hydrochloric acid tan nitric acid) et makaderal a maong.
- Manunan aplikasyon:
(1) Saray goma (ya mankantidad na masulok ya 70%), saray hose ya goma, saray conveyor belt, saray shock absorber, tan arum niran dinamikon kabiangan na karga
(2)Sapatos ya goma, gwantis parad medisina (kaukolan ya umanen pian ag-onloor so panaon)
Klase na produkto: O-ring, ginawan produkto parad saray kustomer, Rubber Gaskets / Flat Washer Seals / Rubber Spacer / Washer Rubber Ring tan arum nira.