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ʻOihana Mea Hana Hou-ʻO ka hopena o nā mea paʻakikī i ka Hygrothermal Aging Properties o Polycarbonate

ʻO PC kahi ʻano ʻenekinia plastic me ka hana maikaʻi loa ma nā ʻano āpau. Loaʻa iā ia nā pōmaikaʻi nui i ka pale ʻana i ka hopena, ke kūpaʻa wela, ka hoʻoheheʻe ʻana i ka dimensional stability a me ka retardancy ahi. No laila, hoʻohana nui ʻia i nā lako uila, nā kaʻa, nā mea haʻuki a me nā ʻano ʻē aʻe. Eia nō naʻe, loaʻa i nā kaulahao molekala PC ka nui o nā apo benzene, kahi mea paʻakikī i ka neʻe ʻana o nā kaulahao molekala, e hopena i ka viscosity hehee nui o PC. I ka wā o ke kaʻina hana, ua kuhikuhi ʻia nā kaulahao molekala PC. Ma hope o ka hana ʻana, ʻo kekahi o nā kaulahao molekala i hoʻopau ʻole ʻia i loko o ka huahana e hoʻi i ko lākou kūlana kūlohelohe, kahi e hoʻoulu ai i ka nui o ke koʻikoʻi i ke koena o ka PC injection molded products, ka hopena i nā māwae i ka wā o ka hoʻohana ʻana a i ʻole ka mālama ʻana i ka huahana; i ka manawa like, he mea notch-sensitive ka PC. ʻO kēia mau hemahema ka palena o ka hoʻonui hou ʻana oNā polokalamu PC.

I mea e hoʻomaikaʻi ai i ka notch sensitivity a me ke kaumaha o ka PC a hoʻomaikaʻi i kāna hana hana, hoʻohana pinepine ʻia nā mea hoʻoikaika paʻakikī e hoʻoikaika i ka PC. I kēia manawa, ʻo nā mea hoʻohui i hoʻohana pinepine ʻia no ka hoʻololi ʻana i ka PC toughening ma ka mākeke e loaʻa nā acrylate toughening agents (ACR), methyl methacrylate-butadiene-styrene toughening agents (MBS) a me nā mea hoʻoikaika paʻakikī i haku ʻia me ka methyl methacrylate e like me ka shell a me ka acrylate a me ke silicone i kumu. Loaʻa i kēia mau mea hoʻoikaika paʻakikī ke hoʻopili maikaʻi ʻia me PC, no laila hiki ke hoʻopuehu like ʻia nā mea paʻakikī i ka PC.

Ua koho kēia pepa i 5 mau ʻano like ʻole o nā mea hoʻoikaika paʻakikī (M-722, M-732, M-577, MR-502 a me S2001), a loiloi i nā hopena o nā mea hoʻoikaika paʻakikī i ka PC thermal oxidation aging properties, 70 ℃ wai paila wai ʻelemakule, a me ka wela wela (85 ℃/85%) mau waiwai kahiko ma o ka hoʻololi ʻana i ka helu kahe kahe o PC, ka wela deformation wela a me nā waiwai mechanical.

 

Nā mea hana nui:

UP-6195: hoʻāʻo ʻeleu wela wela (ka wela wela a haʻahaʻakeena hoao wela);

UP-6196: ho'āʻo hoʻopaʻa wela kiʻekiʻe (umu pololei);

UP-6118: ho'āʻo haʻalulu wela (ke anuanu a welakeena hoao);

UP-6195F: TC kiʻekiʻe a me ka haʻahaʻa wela pōʻai (wikiwiki hoʻololi wela keena hoʻokolohua);

UP-6195C: ho'āʻo haʻalulu a me ka haʻahaʻa haʻahaʻa (ʻekolu mau keʻena hoʻāʻo piha);

UP-6110: ho'āʻo koʻikoʻi hoʻoikaika kiʻekiʻe (hoʻoikaika kiʻekiʻekeena hoao kahiko);

UP-6200: hoʻāʻo ʻelemakule UV (ke keʻena hoʻāʻo ʻelemakule ultraviolet);

UP-6197: hoʻāʻo ʻino ʻino paʻakai (keena hoʻāʻo paʻakai paʻakai).

 

Ka ho'āʻo hana a me ke ʻano hoʻolālā:

● E ho'āʻo i ka hoʻoheheʻe nuipaʻa kahe o ka mea e like me ka ISO 1133 maʻamau, ke kūlana ho'āʻo he 300 ℃ / 1. 2 kg;

● E ho'āʻo i ka ikaika tensile a me ka elongation ma ka haʻihaʻi o ka mea e like me ka ISO 527-1 maʻamau, ka helu ho'āʻo he 50 mm / min;

● E ho'āʻo i ka ikaika flexural a me ka modulus flexural o ka mea e like me ka ISO 178 maʻamau,ʻo ka helu ho'āʻo he 2 mm / min;

● E ho'āʻo i ka ikaika hopena notched o ka mea e like me ISO180 maʻamau, e hoʻohana i ka notch hāpana hana mīkini e hoomakaukau i ka "V"-like notch, ka notch hohonu he 2 mm, a me ka hāpana mālama 'ia ma -30 ℃ no 4 h ma mua. ka ho'āʻo hopena haʻahaʻa haʻahaʻa;

● E ho'āʻo i ka mahana deformation wela o ka mea e like me ka ISO 75-1 maʻamau, ka hoʻomehana wela he 120 ℃ / min;

Hōʻike hōʻike ʻike melemele (IYI):ʻOi aku ka lōʻihi o ka ʻaoʻao hoʻoheheʻe injection ma mua o 2 knm, ʻo 2 mm ka mānoanoa. Pono e calibrated ka mea hana ma mua o ka hoʻāʻo ʻana. Ua ana ʻia kēlā me kēia pā waihoʻoluʻu i 3 mau manawa a hoʻopaʻa ʻia ka helu melemele o ka pā kala;

Nānā SEM:Ua ʻoki ʻia ka ʻāpana hoʻohālike i hoʻoheheʻe ʻia, ua kāpī ʻia ke gula ma luna o kona ʻili, a ʻike ʻia kona ʻano morphology ma lalo o kekahi volta.

ʻO nā waiwai kahiko o Hygrothermal o Polycarbonate


Ka manawa hoʻouna: ʻAukake-22-2024