E aʻo e pili ana i ka mana o ka epoxy resin structure ma ka hana ʻana o nā uhi kai

2022-11-07

1. Introduction


  He wahi kai nui ko Kina a me ka waiwai o ka moana. ʻOi aku i nā makahiki i hala iho nei, ua nānā nui ka ʻāina i ka hoʻomohala ʻana i ke kai. Me ka wikiwiki o ka hoʻokele waiwai moana, ua piʻi pū ka ʻoihana hana moku. ʻO ka manaʻolana o ka mākeke o nā uhi moku moana he manaʻo maikaʻi loa a ke piʻi aʻe nei nā koi. Iwaena o lakou, epoxy ʻO ka resin coating ka ikaika adhesion, maikaʻi loa ka pale ʻana i ka ʻōpala a me ka wai kūpaʻa, maikaʻi ka ikaika mechanical a me ke kūpaʻa kemika, a he hana koʻikoʻi i ka pale ʻana o ka moku, ʻoi aku hoʻi i ka hull, waterline, deck a me nā ʻāpana ʻē aʻe. Manaʻo ʻia ʻo ia kekahi o nā huahana pou i ka ʻoihana uhi moku moana.


  Eia nō naʻe, me ka hoʻomaikaʻi mau ʻana i nā kūlana hana o nā uhi kai i nā makahiki i hala iho nei, pono e hoʻomaikaʻi ʻia ka resin epoxy i hoʻohana ʻia i ka pale wela, ka paʻakikī kiʻekiʻe, ka pale ʻana i ka wai a me nā mea ʻē aʻe e hoʻokō ai i ka hana kiʻekiʻe. Eia nō naʻe, ma muli o ka ikaika intermolecular nui o ka resin epoxy, paʻa ka aggregate. Eia kekahi, hiki ke hoʻonohonoho pono ʻia nā kaulahao molekala, hana i ka crystalline kiʻekiʻe, brittle i ka lumi wela, a me ka hana maikaʻi ʻole. No laila, wikiwiki e hoʻomaopopo a haku i nā ʻano o ka epoxy resin me nā ʻano hana like ʻole, ʻoi aku ka hopena o ka hopena, he mea nui ia no ka hoʻolālā ʻana a me ka hoʻomohala ʻana. epoxy resin coatings no na moku moana.



  I loko o kēia pepa, ʻike ʻia ka paʻakikī, adhesion a me ka hopena o nā ʻili ma ke koho ʻana i nā resins epoxy me nā ʻano hana like ʻole, me ka bisphenol A, hydrogenated bisphenol A, bisphenol F a me nā resins epoxy hui pū ʻia, a me ka hoʻohana ʻana i ka polyether amine maʻalahi e like me ka lāʻau lapaʻau. no ka loaʻa ʻana o ka pilina ma waena o nā hale epoxy resin ʻokoʻa a me nā waiwai uhi, no laila e hāʻawi ana i kumu kumu no ka hoʻomohala ʻana a me ka hoʻohana ʻana i nā uhi epoxy no nā moku moana.

EPOXY RESIN E51

epoxy resin maopopo

2. Hoʻokolohua


a) Mea Maka


  ʻO Phenol A epoxy resin E51: waiwai epoxy 0.51; Hydrogenated bisphenol A epoxy resin ST3000: waiwai epoxy 0.43; Bisphenol F epoxy resin CYDF170: waiwai epoxy 0.60; Epoxy resin TDE85 i hui pū ʻia: ka waiwai epoxy 0.85; D230: amine hana hydrogen like 60g/eq; Acetone.


b) Nā ʻano hoʻokolohua


i. Hoʻomākaukau ʻana i ka uhi


  E like me ke ʻano i hōʻike ʻia ma ka Papa 1, e kaupaona i kahi nui o ka resin a me ka lāʻau lapaʻau, e hoʻoulu me ka mechanically iā lākou i ka lumi wela a hiki i ke ʻano o ka ʻōnaehana, hoʻoheheʻe ʻia, a laila hoʻohana i ka applicator kiʻi pena 100 μ M i kahi papa o ka pena kiʻiʻoniʻoni ma luna. ka pā kila (hoʻomaʻemaʻe a hoʻomaʻemaʻe ʻia me ka acetone) no ka hoʻāʻo adhesion; Ua ninini ʻia ke koena o ke koena i loko o ka mold (e pili ana i 8mm) me ka pā kila ma lalo (hoʻomaʻemaʻe ʻia a hoʻomaʻemaʻe ʻia me ka acetone) no ka paʻakikī a me nā hoʻokolohua kūʻē i ka hopena. Ua ho'āʻoʻia nā waiwai ma hope o ka ho'ōlaʻana i ka mahana wela no 7 mau lā.


  Papa 1 Ka mana o ka epoxy resin i ka hana uhi

Epoxy Resin

Ka nui o ka mea ho'ōla / g

E51

ST3000

CYDF170

TDE85

D230

36.7

31.0

43.2

61.2


  Hoʻomaopopo: ʻO 100g ka nui o ka epoxy resin, a ʻo H: epoxy base = 1.2: 1.


  ii. Hoao Hana


  Hōʻike ʻia nā mea hana hoʻāʻo a me nā ʻano hoʻāʻo no nā ʻano like ʻole o ka uhi resin cured ma ka Papa 2.


  Papa 2 Ho'āʻo hoʻokō i ka uhi ʻana

Nā Mea Hōʻike

Mea Hana a me na Lako

hoʻokolohua Ano O

Kiʻiʻoniʻoni mānoanoa

Qnix4200 ana mānoanoa uhi metala


Hoʻohui wā

GZT-1 mea hoʻopaʻa manawa maloʻo

ASTM D 5895-2003

paakiki

Mea ho'āʻo paʻakikī kahakai

GB2411-1980(1989)

Adhesion

PosiTest AT ho'āʻo hoʻopili


kohoʻia

ʻO ka mea hōʻike hoʻololi kiʻiʻoniʻoni QTX

GB / T 1731-1993

Ka hopena o ka hana

QCJ pena kiʻi paʻi

GB-T1732-1993


3. Nā hopena a me nā kūkākūkā


a) Manawa Hoomaloo


  ʻO ka manawa maloʻo o ka resin e pili pono i ka hana hana o ka uhi. Ma kēia pepa, ua noiʻi ʻia ka manawa hoʻomaloʻo o nā epoxy resins ʻehā me D230 ma ke ʻano he lāʻau hoʻōla, e like me ka hōʻike ʻana ma ka Papa 3. Ua hōʻike ʻia nā hopena i ka wikiwiki o ka hoʻōla ʻana o ka resin epoxy hui ʻia no ka mea aia ʻekolu mau pūʻulu epoxy, a hiki iā ia. e maloʻo i loko o ʻekolu hola; He lohi loa ka ho'ōla ʻana o ka bisphenol hydrogenated A epoxy resin, a ʻaʻole hiki ke hoʻomaloʻo ʻia ma hope o 24h.


Papa 3 Ka hopena o na epoxy resins i ka manawa maloo

Agena hoola

Ka manawa maloʻo o ka ʻili/h

Ka manawa maloʻo/h

E51

7

12

ST3000

≥24

> 24

CYDF170

8.5

15

TDE85

1.5

3


b) Oolea

  

  ʻO ka paʻakikī kiʻiʻoniʻoni kekahi o nā hōʻailona hana e hopohopo nei i nā mea hoʻohana a me nā mea hana uhi, a me kekahi o nā waiwai kino koʻikoʻi o nā uhi moku moana. Hōʻike ia i ka hiki ʻana o kekahi mea ke kūʻē i ka indentation, scratch, scratch a me ke komo ʻana o kekahi mea ʻē aʻe. No nā epoxy resins ʻehā i noiʻi ʻia ma kēia pepa, ua hōʻike ʻia ka paʻakikī o ka resin cured ma ke Kiʻi 2. ʻO ka paʻakikī o E51, CYDF-170 a me ST-3000 ma kahi o 80 Shore D. ʻO kēia no ka mea he bisphenol epoxy resins lākou a pau. Hiki i ka hui hydroxyl ma ke kaulahao mole ke hoʻomaikaʻi nui i ka ikaika intermolecular, a ʻoi aku ka nui o ka ikehu cohesive e pili ana, no laila ke kiʻekiʻe ka paʻakikī o ka resin cured. Eia nō naʻe, inā ʻo TDE-85 ka resin epoxy, no ka mea, ʻaʻohe hui paʻa o ke apo benzene ma ke kaulahao mole, a he liʻiliʻi ka ikaika intermolecular, ʻoi aku ka paʻakikī ma mua o ka bisphenol epoxy resin, ʻo 43 Shore D wale nō.

wai epoxy resin

  Fig. 2 ʻO ka paʻakikī o ka resin i ho'ōla ʻia i loaʻa ma ka pane ʻana o ka lāʻau lapaʻau D230 me nā resin epoxy ʻokoʻa.


c) Hoʻopili


  No nā uhi kai, he mea hōʻailona koʻikoʻi ka hana anti-corrosion, a ʻo ka hoʻopili ʻana ma waena o nā pale polymer a me nā metala he mea pono ia no ka pāʻani piha o ka hana anti-corrosion. No laila, i loko o kēia pepa, ua aʻo ʻia ka hoʻopili ʻana o ka epoxy resins i hoʻōla ʻia me nā hale like ʻole ʻehā, a ua hōʻike ʻia nā hopena ma ke Kiʻi 3. ʻO ka hoʻopili kiʻekiʻe loa o ka hydrogenated bisphenol A epoxy resin ST3000 he 4.7MPa, ukali ʻia e bisphenol A epoxy resin E51 a me ka bisphenol F epoxy resin CYDF170, e pili ana i 4MPa, aʻo ka hoʻopili ʻana o ka epoxy resin TDE85 i hui ʻia he 2.5MPa wale nō. Ke hoʻopili ʻia ka uhi i ka substrate metala, pono kahi kikowaena hoʻopili kemika. Hiki i nā hui polar, ʻoi aku ka hydroxyl a me nā pūʻulu carboxyl, ke hana i nā kikowaena hoʻopili kemika [10]. Hiki ke ʻike ʻia mai ka Kiʻi 1 ʻo ka bisphenol epoxy resin a me ka epoxy resin i hui pū ʻia i kekahi mau pūʻulu polar, akā ʻo TDE85 ka wikiwiki o ka mālama ʻana. Me ka holomua o ka ho'ōla ʻana a me ka hoʻopili ʻana i ka hopena, ʻoi aku ka paʻakikī o ka neʻe ʻana o ke kaulahao molekala, ʻaʻole hiki ke hoʻopuehu i ka ʻili o ka pā kila. ʻAʻole hiki i nā hui polar ke launa pū me ka ʻili o ka pā kila. He liʻiliʻi nā pūʻulu polar i hoʻopili pono ʻia, no laila ua haʻahaʻa loa ke adhesion. ʻO ka wikiwiki o ka ho'ōla o ka bisphenol hydrogenated ʻO ka resin epoxy ka lohi loa, ua lawa ka manawa o ke kaulahao molekala e neʻe ai i ka ʻili o ka pā kila, a ua hoʻopili ʻia nā hui polar maikaʻi loa, me ka pili nui loa.

epoxy resin e44


  Fig. 3 Ka hoʻopili ʻana o ka lāʻau lapaʻau i loaʻa mai e ka lāʻau lapaʻau D230 e pane ana me nā resins epoxy ʻokoʻa.


  d) Ke kū'ē i ka hopena


  ʻO ka pōʻino nui loa o ka epoxy resin ʻo ia ka palupalu a me ka paʻakikī paʻakikī, e kaupalena ana i kāna noi ʻana i nā ʻāpana e koi ana i ke kūpaʻa hopena kiʻekiʻe a me ka pale ʻana i nā moku. Ma kēia pepa, ua hoʻokuʻu ʻia kahi hāmare koʻikoʻi 2kg ma ka papa hoʻāʻo e noiʻi i ka hopena o ka hana o nā uhi epoxy i hoʻōla ʻia me nā hale like ʻole. Hōʻike ʻia nā hopena ma ke Kiʻi 4. ʻO ke kiʻekiʻe o ka hopena kiʻekiʻe e hōʻike ana i ke kiʻekiʻe kiʻekiʻe e hōʻino ʻole i ka uhi ʻana ma hope o ka hopena o ka hāmare kaumaha. No ka bisphenol A epoxy resin E51, ma muli o ka noho ʻana o ka hui paʻa o ke apo benzene a me ka pūʻulu hydroxyl ma kāna kaulahao mole, nui ka ikehu cohesion. ʻOiai inā he polyether amine D230 maʻalahi ka mea hoʻōla, pōkole kona kaulahao molekala a he mea liʻiliʻi. No laila, ʻoi aku ka maikaʻi o ka hopena o ka uhi ʻana ma hope o ka hopena a me ka hoʻōla ʻana o nā mea ʻelua, me ke kiʻekiʻe kiʻekiʻe o ka hopena o 60cm wale nō. Hoʻohālikelike ʻia me E51, hoʻololi ka hui e hoʻopili ana i nā apo benzene ʻelua i ke kaulahao mole o bisphenol F epoxy resin CYDF170 mai ka hui isopropyl i ka pūʻulu methylene, e hoʻomaikaʻi ai i ka hana o ke kaulahao mole a hoʻomaikaʻi iki i ka waiwai hopena i hoʻohālikelike ʻia me E51. ʻO ka bisphenol hydrogenated A epoxy resin ST3000 he apo alicyclic wale nō i ke kaulahao nui, nona ka liʻiliʻi rigidity, ka hopena maikaʻi a me ke kiʻekiʻe o ka hopena o 100cm. Ma hope o ka ho'ōla ʻana, ʻo ka epoxy resin TDE85 i hui pū ʻia me ka ikehu cohesive haʻahaʻa, a hiki i ka hui alicyclic ke hoʻomaikaʻi maikaʻi i ka paʻakikī o ka huahana ho'ōla. No laila, ʻoi aku ka maikaʻi o ka hana hopena, a ʻo ke kiʻekiʻe o ka hopena he 110cm.


2022年11月7.5.webp

  Fig. 4 Nā waiwai hopena o ka resin i ho'ōla ʻia i loaʻa mai e ka lāʻau hoʻōla D230 e pane ana me nā resins epoxy ʻokoʻa.


4. Panina


  (1) Me D230 ma ke ʻano he lāʻau lapaʻau, ka paʻakikī o ka bisphenol epoxy resin E51, ST3000 a me CYDF170 hiki ke hiki i 80 Shore D ma hope o ka ho'ōla ma muli o ka ikehu cohesive nui; ʻO ka epoxy resin TDE85 hui pū ʻia he 43 Shore D ma hope o ka hoʻōla ʻana.


  (2) No nā resins epoxy ʻehā i aʻo ʻia ma kēia pepa, ʻo ka nui o ka pilina o ka adhesion ʻo ST3000> CYDF170> E51> TDE85, a ʻo ka hoʻopili ʻana o ST3000 a me D230 i ka pā kila polū ma hope o ka hoʻōla ʻana hiki ke hiki i 4.7MPa.


  (3) Ke hoʻohana ʻia ʻo D230 ma ke ʻano he lāʻau lapaʻau, loaʻa iā TDE85 ka waiwai hopena maikaʻi loa a ʻo E51 ka waiwai hopena ʻino loa.


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