Ammonium Polyphosphate ikorwa ite?

Mu gihe cyo kuvuga ku bintu bigabanya umuriro bitagira halogen, ijambo rimwe rikunze kugaragara - APP. Ariko si porogaramu igendanwa; yerekeza kuriammonium polyphosphate.

Nk' "ubugingo" bw'ibikoresho bigabanya umuriro mu kirere, uruhare rwa APP rurenze gutanga fosifore na azote gusa.

Ubwa mbere, reka dusobanukirwe: APP ni iki mu by'ukuri?

Ammonium polyphosphate, ifite formula rusange (NH4)n+2PnO3n+1, ni ikintu kidakoresha umuriro gishingiye kuri fosifore na azote kidakoresha halogen kandi kidahungabanya ibidukikije.

Mu miterere, APP ishobora kubonwa nk'umusaruro wa ammonium phosphate uhindukamo umwuka, kandi imiterere yayo iratandukanye cyane bitewe n'urwego rwa polymerization (n). Ubusanzwe igabanywamo imiterere ibiri ya kristu: Ubwoko bwa I n'Ubwoko bwa II.

Muri sisitemu zigabanya umuriro mu kirere, APP ikora nk'isoko ya aside—ibora iyo ishyushye kugira ngo ikore aside zikomeye nka aside fosforike, aside metaforike, na aside polyforike. Izi aside zitera amazi mu mubiri no gutuma ibintu bishyuha, zigakora urwego rw'icyitegererezo cya charring.

Icya kabiri, porogaramu ikorwa ite?

Hari uburyo bwinshi bwo gukora polyphosphate (APP), aho uburyo bukunze gukoreshwa cyane mu nganda ari bwo ammonium dihydrogen phosphate-urea na fosforasi pentoxide-ammonium phosphate-urea.

Uburyo bwa Ammonium dihydrogen phosphate-urea: Ammonium dihydrogen phosphate na urea bivangwa mu gipimo runaka hanyuma bigakorwa polymeri kuri dogere selisiyusi 220 kugira ngo bibone APP. Ariko, ubu buryo butanga umusaruro mwinshiUbwoko bwa I APPifite urwego ruto rwa polymerization.

Uburyo bwa Fosforu pentoxide-ammonium phosphate-urea: Fosforu pentoxide, ammonium phosphate, na urea bivangwa bigashyuha munsi y'ikirere cya ammonia (280 ~ 300°C) kugira ngo bibonerwePorogaramu yo mu bwoko bwa IIhamwe n'urwego rwo hejuru rwa polymerization. Ubu buryo busaba ibikoresho bigezweho ariko butanga ibicuruzwa byiza cyane.

Mu myaka ya vuba aha, ikoranabuhanga ryo gukora piperazine-modified ammonium polyphosphate naryo ryagaragaye. Mu guhuza piperazine na APP, imiterere ya piperazine irashyirwa ahagaragara, binongera ubushobozi bwo guhagarara neza kw'ubushyuhe n'imiterere yo gukora char.

Tubwire ibibazo byawe bigabanya umuriro.