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Ihe eji eme polyurethane na-eguzogide oke okpomọkụ? Na mkpokọta, polyurtethane adịghị eguzogide okpomọkụ dị elu, ọbụlagodi na usoro PPDI na-echekarị, oke okpomọkụ kachasị nwere ike ịbụ naanị 150 Celsius. Foryester ma ọ bụ ụdị pollewer nwere ike ọ gaghị enwe ike iguzogide ọnọdụ dị elu karịa 120 Celsius. Agbanyeghị, Polyurethane bụ polymer polmer nke ukwuu, ma e jiri ya tụnyere plastik, ọ na-eguzogide okpomoku. Ya mere, ịkọwapụta ọnọdụ okpomọkụ maka iguzogide ọnọdụ okpomọkụ ma ọ bụ iche iche dị iche iche dị oke egwu.
2
Yabụ kedu ka ikuku siri ike nke polyurethane na-akawanye mma? Azịza nke bụ isi bụ ịbawanye kristal nke ihe ahụ, dị ka PPDI Inocyanate a kpọtụrụ aha na mbụ. Kedu ihe kpatara ịbawanye kristal polymer na-abawanye ike ya? Azịza ya bụ nke mbụ, nke ahụ bụ, na-ekpebi ihe ndị na-eme. Taa, anyị ga-achọ ịgbalị ịkọwa ihe kpatara mmelite nke usoro ihe eji eme ihe na-eweta nkwadebe na ikuku, echiche nke GIBS n'efu, ya bụ g = h-st. Akụkụ aka ekpe nke g nọchiri anya ike efu, akụkụ aka nri h dị larịị, s bụ inchropy, na t.
3
Ike na-enweghị ike na thermodlenaccccccccccccccccccccliccccccccccccccclicccccliccccccccccccliccccccclicccccccccclicccccccclicccccccliccccliccccccliccccccction, na nha ya na-abụkarị uru dị iche iche, yabụ ejighị akara na-enweghị ike inweta ma ọ bụ nọchiri anya ya. Mgbe △ nke na-ebelata, ya bụ mgbe ihe na-adịghị mma, ọ pụtara na mmeghachi kemịkalụ nwere ike ime ma ọ bụ mara mma maka otu mmeghachi omume a tụrụ anya ya. Enwere ike iji nke a chọpụta ma mmeghachi omume dị ma ọ bụ na-atụgharị na thermodynamicccccccccccccccs. Enwere ike ịghọta ogo ma ọ bụ ọnụego mbelata dịka kinetics nke mmeghachi omume n'onwe ya. H bụ nke ọma, nke nwere ike ịghọta dịka ume nke molekule. Enwere ike ịkọwa ya site na elu nke mkpụrụ ndụ China, dịka ọkụ adịghị

4
S na-anọchi anya ntinye nke sistemụ ahụ, nke amaara na nke ọma na ọkọlọpụta pụtara ìhè doro anya. Ọ bụ ihe metụtara ma ọ bụ gosipụta na usoro nke okpomọkụ t, na nke bụ isi ya bụ ihe kpatara nsogbu ma ọ bụ nnwere onwe nke obere microscopic. N'oge a, onye ahụ na-ahụ n'anya nwere ike ịchọpụtala na ọnọdụ okpomọkụ nke a metụtara nguzogide ọkụ ọkụ anyị na-atụle taa. Ka m jupụta na ntakịrị banyere echiche nke arịrịọ. Enwere ike ịghọta onye na-enye ego dịka nke na-abụghị nke kristal. Ihe dị elu bara uru, na-enwe nsogbu na ọgba aghara nke moolatic. Ihe dị elu molecular usoro, ka mma molerellinity na-eti mkpu. Ugbu a, ka anyị gbue obere square na roba roo polyurtethane ma na-atụle obere square dị ka usoro zuru ezu. A na-etinyekarị oke ya, na-eburu na squaret ahụ mejupụtara squarethan 100 polyurethane (nke dị oke ọnụ na-agbanwe agbanwe, anyị nwere ike ịgbanwee ya na ST = H, ebe t ka ọnọdụ okpomọkụ. Nke ahụ bụ, nguzogide ọkụ nke obere square bụ nke na-eme ka o tozuru etozu nke ozí ya.
5
O sighị ike ịchọpụta na imeziwanye nke cringinity enweghị ike belata uru ọ bara, nke ahụ bụ otu n'ime ụzọ dị mma, n'agbanyeghị ọnọdụ mgbanwe iko ma ọ bụ na-agbaze. Ihe kwesiri igbanye ya bu na ihe omumu ma na ariri na ulo monomer na ebe a na - eme ihe n'ozuzu ya. A na-enyekarị ike site na ike nke molekula, na ike nke molecular bụ ihe dị iche iche nwere ike ime, ọ ga-adịrị gị mfe, nke pụtara na mmiri na-eme mkpọtụ, dị ka mmiri na-agbaba n'ime ice. Na mgbakwunye, anyị buru ibu 100 polyurtethane 100 polyurtethane, mmekọrịta mmekọrịta mmadụ na ibe ya ga-emetụtakwa njikọta nke njikọta nke obere ihe ọ bụla, na-egbochi ogo nke molerytethane ọ bụla, N'ihi ya, njikọta hydrogen bara uru iji mee ka nguzogide ọkụ.