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Hatari
Bisphenol Epoxy Resin: Bisphenol A and Epichlorohydrin in Caustic Soda, Wiles and Newey 1950
Bisphenol A dissolved in caustic soda solution and stirred with epichlorohydrin warms itself to 70 °C; two more portions of caustic soda and heat to 95 °C finish the reaction, and a taffy-like resin separates from the water (Wiles and Newey, Shell, US 2,528,932, 1950: "Epoxy Resin II", softening at 43 °C). Washed neutral and dried at 130 °C, it is the resin half of the two-part epoxy glue.
The picture: our diagram of the kettle stages.
Juu
A day
Maudhui hatari
Blueprint hii ina taratibu za hatari. Ingia na uwashe maudhui ya hatari katika mipangilio ya akaunti yako ili kuona maagizo ya hatua kwa hatua.
IngiaMchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.