ʻO PPA-GF, FR no ka haʻihaʻi a me nā pahu pahu
ʻO Polyphthalamide (aka. PPA, High Performance Polyamide) he ʻāpana o nā resins synthetic thermoplastic i loko o ka ʻohana polyamide (nylon) i wehewehe ʻia e like me ka 55% a ʻoi aku paha nā mole o ka ʻāpana carboxylic acid o ka hui hou i ke kaulahao polymer i haku ʻia me kahi hui. o nā ʻakika terephthalic (TPA) a me isophthalic (IPA). ʻO ka hoʻololi ʻana o ka aliphatic e hoʻoholo e ka aromatic hoʻoholo i loko o ka iwi kuamoʻo polymer e hoʻonui i ka helu heheʻe, ka mahana hoʻololi aniani, ke kūpaʻa kemika a me ka ʻoʻoleʻa.
Hoʻoheheʻe ʻia nā resins e pili ana i ka PPA i nā ʻāpana e hoʻololi i nā metala i nā noi e koi ana i ke kūpaʻa wela kiʻekiʻe e like me nā ʻāpana kaʻa kaʻa kaʻa, ka hale no nā mea hoʻohui uila wela a me nā mea hoʻohana ʻē aʻe.
Piʻi ka mahana hoʻololi aniani o PPA i ka piʻi ʻana o ka nui o TPA. Inā ʻoi aku ma mua o 55% o ka ʻāpana waikawa o kahi PPA i hana ʻia mai ka IPA, a laila he amorphous ka copolymer. Hōʻike ʻia nā waiwai o nā polymers semi crystalline v amorphous polymers ma kahi ʻē aʻe. ʻO ka pōkole, kōkua ka crystalline i ke kūpaʻa kemika a me nā waiwai mechanical ma luna o ka mahana hoʻololi aniani (akā ma lalo o ka helu heheʻe). He maikaʻi nā polymers Amorphous i ka warpage a me ka ʻike.
Nā hiʻohiʻona PPA
Loaʻa i nā mea PPA nā waiwai hui maikaʻi, e hana maikaʻi ana i nā mea wela, uila, kino a me nā mea kemika. ʻOi aku ma lalo o ke kiʻekiʻe kiʻekiʻe o ka PPA i ka rigidity kiʻekiʻe a me ka ikaika kiʻekiʻe, me ka pololei o ka dimensional a me ka paʻa.
PPA Kahua noi nui
Hoʻohana kūikawā no ka hui hoʻomalu ʻana i ka wai o ka Automotive a me ka ʻāpana kino thermostat.
| Kahua | Nā hihia noi |
| Nā ʻāpana kaʻa | Auto Water Temperature Control Assemblies, ʻāpana kino thermostat, nā ʻāpana hana, ka pauma ikaika, ka ʻāpana paʻa, ka ʻaila ʻaila etc. |
| Uila a me Uila | Mea hoʻohui, SMT connector, Breaker, socket, bobbins etc. |
| ʻOihana pololei a me nā ʻāpana mīkini | ʻO nā ʻāpana pauma hoʻokele mana, nā ʻāpana umu mahu, nā mea hoʻohui paila wai wela, nā mea hoʻomehana wai |
SIKO PPA papa a me ka wehewehe
| SIKO Papa No. | Hoʻopiha (%) | FR(UL-94) | wehewehe |
| SPA90G33/G40-HRT | 33%-40% | HB | ʻO ka PPA, kahi ʻano semi-crystalline thermoplastic aromatic polyamide, i kapa ʻia ʻo ka nylon aromatic kūpaʻa kiʻekiʻe, me kahi waiwai o ka wela 180 ℃ i ka mahana hana lōʻihi, a me 290 ℃ i ka mahana hana pōkole, pū kekahi. e like me ke kiʻekiʻe modulus, kiʻekiʻe rigidity, kiʻekiʻe hana-kumu kūʻai lākiō, haʻahaʻa wai absorption rate, dimensional paʻa a me ka maikaʻi kuʻihao pono, etc. PPA mea i hui maikaʻi waiwai, e hana maikaʻi ma thermal, uila, kino a me kemika waiwai. ʻOi aku ma lalo o ke kiʻekiʻe kiʻekiʻe o ka PPA i ka rigidity kiʻekiʻe a me ka ikaika kiʻekiʻe, me ka pololei o ka dimensional a me ka paʻa. |
| SPA90G30/G35/40/45/50 | 30%,35%,40 %,45%,50% | HB | |
| SPA90G30F/G35F/40F/45F/50F | 30%,35%,40 %,45%,50% | V0 | |
| SPA90G35F-GN | 35% | V0 | |
| SPA90G35-WR | 35% | HB | |
| SPA90C35/C40 | 35%,40% | HB |
Papa Papa Kaulike
| Mea waiwai | Hōʻike | papa SIKO | E like me ka maʻamau brand & grade |
| PPA | PPA+33%GF, Paʻa ka wela, Hydrolysis, HB | SPA90G33-HSLR | SOLVAY AS-4133HS, DUPONT HTN 51G35HSLR |
| PPA+50%GF, Paʻa ka wela, HB | SPA90G50-HSL | EMS GV-5H, DUPONT HTN 51G50HSL | |
| PPA+30%GF, FR V0 | SPA90G30F | SOLVAY AFA-6133V0Z, DUNPONT HTN FR52G30NH |
