He aha ka Polyphenylene Sulfide (PPS)?

ʻO ka Polyphenylene Sulfide (PPS) he semi-crystalline thermoplastic polymer me kahi ʻano melemele ʻeleʻele. Loaʻa iā ia kahi helu heheʻe ma kahi o 290°C a me kahi mānoanoa ma kahi o 1.35 g/cm³. ʻO kona iwi kuamoʻo — i haku ʻia me nā apo benzene a me nā ʻātoma sulfur — hāʻawi iā ia i kahi ʻano paʻa a paʻa loa.

ʻIke ʻia ʻo PPS no kona paʻakikī kiʻekiʻe, kūpaʻa wela maikaʻi loa, kūpaʻa kemika, a me ka ikaika mechanical. Ma muli o kāna hana koʻikoʻi, ʻike nui ʻia ʻo PPS ma ke ʻano he ʻeono o nā plastic engineering nui, me ka polyethylene terephthalate (PET), nylon (PA), polycarbonate (PC), polyoxymethylene (POM), a me polyphenylene ether (PPO).

Nā ʻano a me nā noi o PPS

Loaʻa nā huahana Polyphenylene Sulfide (PPS) i nā ʻano like ʻole a me nā māka, e like me nā resins, fibers, filaments, films, a me nā uhi, e hana nui ai lākou. ʻO nā wahi noi nui o ka PPS e pili ana i ka ʻoihana automotive, uila a me nā uila, ʻoihana kemika, pūʻali koa a me ka pale, ʻāpana textile, a me ka pale ʻana i ke kaiapuni.

Nā Luʻi maʻamau ma PPSenā mea ʻilika and Pehea e Hoʻoholo ai iā lākou

ʻOiai ʻo kāna mau waiwai maikaʻi loa, ke kū nei nā plastics engineering PPS i kekahi mau hoʻoponopono a me nā pilikia hana i nā noi kūpono. Eia ʻekolu o nā pilikia maʻamau a me nā hoʻonā e pili ana:

1. Pilikino i ka PPS i hoʻopiha ʻole ʻia

Paʻa: He palupalu ka PPS i hoʻopiha ʻole ʻia, e kaupalena ana i kona hoʻohana ʻana i nā noi e koi ana i ke kūpaʻa kiʻekiʻe a i ʻole ka maʻalahi (e laʻa, nā ʻāpana pili i ka haʻalulu a haʻalulu paha).

Nā kumu:

ʻO ka elongation haʻahaʻa ma ka haʻihaʻi ʻana ma muli o kona ʻano molekala paʻa.

Ka nele o nā mea hoʻohui e hoʻonui i ka paʻakikī.

Nā pane:

E hoʻohana i nā māka PPS i hoʻoikaika ʻia me ka fiber aniani (e laʻa, 40% piha aniani) a i ʻole nā mea hoʻopiha mineral e hoʻomaikaʻi i ka ikaika a me ka paʻakikī.

E hui pū me nā elastomers a i ʻole nā mea hoʻololi hopena no nā noi kikoʻī.

2. Hoʻopili maikaʻi ʻole no ka uhi ʻana a i ʻole ka hoʻopaʻa ʻana

Paʻakikī: He mea paʻakikī ka paʻakikī o ka PPS i nā mea hoʻopili, nā uhi, a i ʻole nā ​​pena e hoʻopili, paʻakikī i ka hui ʻana a i ʻole ka hoʻopau ʻana o ka ʻili (e laʻa, ma nā hale uila a i ʻole nā ​​ʻāpana ʻoihana i uhi ʻia).

Nā kumu:

ʻO ka ikehu haʻahaʻa haʻahaʻa ma muli o ke ʻano kemika non-polar o PPS.

Kū'ē i ka hoʻopaʻa kemika a i ʻole ka pulu ʻili.

Nā pane:

E hoʻohana i nā lāʻau lapaʻau e like me ka etching plasma, corona discharge, a i ʻole ka hoʻomaʻamaʻa kemika e hoʻonui i ka ikehu.

E hoʻohana i nā mea hoʻopili kūikawā (e laʻa, epoxy a i ʻole polyurethane-based) i hoʻolālā ʻia no PPS.

3 . ʻO ka ʻaʻahu a me ke kuʻekuʻe ʻana i nā noi hoʻoikaika kino

Paʻakikī: Hōʻike nā māka PPS i hoʻopiha ʻole ʻia a i ʻole nā ​​pahu kiʻekiʻe o ka ʻaʻahu a i ʻole ka hakakā ʻana i nā ʻāpana hoʻoneʻe e like me nā bearings, gears, a i ʻole nā sila, e alakaʻi ana i ka hāʻule ʻole i nā noi ikaika.

Causes:

ʻO ke koena kiʻekiʻe o ka friction ma PPS i hoʻopiha ʻole ʻia.

Lubricity palena ʻole ma lalo o nā ukana kiʻekiʻe a i ʻole ka neʻe mau ʻana.

Nā pane:

E koholubricated PPS māka me nā mea hoʻohuie like me PTFE, graphite, a i ʻole molybdenum disulfide e hōʻemi i ka friction a hoʻonui i ka pale ʻana i ka lole.

E hoʻohana i nā māka i hoʻoikaika ʻia (e laʻa, hoʻopiha ʻia ka carbon fiber-filled) no ka hiki ke hāpai haʻahaʻa.

SILIKE Lubricant Processing Aids and Surface Modifiers for PPS Engineering Plastics

ʻO nā mea hou no ka hoʻonui ʻana i ke kūʻē ʻana o nā mea hoʻoheheʻe PPS

Ke hoʻolauna nei i nā mea hoʻohui silicone-based SILIKE LYSI-530A a me SILIMER 0110

ʻO LYSI-530A a me SILIMER 0110 nā mea kōkua hoʻoponopono lubricant hou a me nā mea hoʻololi i luna no polyphenylene sulfide (PPS), i hoʻokuʻu ʻia e SILIKE. Hana like kēia mau mea hoʻohui silicone me ka polytetrafluoroethylene (PTFE), i hōʻike ʻia e ko lākou ikehu haʻahaʻa. ʻO ka hopena, hoʻemi nui lākou i ka nui o ka lole a me ka coefficient friction o PPS composites.

Hōʻike kēia mau mea hoʻohui i kahi koena friction haʻahaʻa haʻahaʻa a hana e like me nā lubricants kūloko. Hoʻopuka lākou i kahi kiʻiʻoniʻoni lahilahi ma ka ʻili o ka PPS i ka wā e hoʻokau ʻia ai ka ikaika shear, a laila e hōʻemi ana i ka hakakā ma waena o ka PPS a me nā ʻili pili, me ka nānā ʻole inā he metala a i ʻole ka plastic.

Ma ka hoʻohana ʻana i ka 3% LYSI-530A wale nō, hiki ke hoʻemi ʻia ka coefficient friction dynamic a puni 0.158, e hopena i kahi ʻili maʻemaʻe.

Hoʻohui, hiki i ka hoʻohui ʻana o 3% SILIMER 0110 ke loaʻa i kahi koena friction haʻahaʻa ma kahi o 0.191 ʻoiai e hāʻawi ana i ke kūpaʻa abrasion like me ka mea i hāʻawi ʻia e 10% PTFE. Hōʻike kēia i ka maikaʻi a me ka hiki o kēia mau mea hoʻohui i ka hoʻomaikaʻi ʻana i ka hana a me ka lōʻihi ma waena o nā noi like ʻole, kūpono no ka hoʻoheheʻe ʻana, ka hoʻololi ʻana, a i ʻole ka hoʻouka ʻana i nā ʻāpana PPS.

Hāʻawi ʻo SILIKE i ka hana kiʻekiʻenā lubricants i hoʻokumu ʻia i ka silicone a me nā mea kōkua hanano ka nui o na palapala plastik. Hoʻolālā ʻia kā mākou mea hoʻohui e hoʻomaikaʻi i ka hana ʻana a hoʻomaikaʻi i nā waiwai o ka ʻili i nā plastics a me nā pūhui i hoʻololi ʻia.

Ke ʻimi nei ʻoe i ka mea hoʻohui kūpono no kāu hoʻolālā? E koho iā SILIKE - ʻo kā mākou hopena silicone-based e kāhāhā paha iā ʻoe me kā lākou hana.
Hoʻonui i ka hana PPS me nā mea hoʻohui silicone-based e hōʻemi i ka friction a me ka lole - ʻaʻohe pono PTFE.

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