Lastikuw faralen ɲɔgɔn kan, compression permanent deformation tests caman bɛ kɛ ka tɛmɛ tension permanent deformation tests kan. I n’a fɔ a bɛna fɔ cogo min na jukɔrɔ, lastikuw faralen ɲɔgɔn kan, olu caman bɛ nɔ bila a ka fɛnw tiɲɛni cogoyaw la. A ka kan ka Kɔlɔsi yan ko compressive permanent deformation ani tensile permanent deformation ye nafa fila ye minnu tɛ kelen ye. O la, min bɛ compression permanent deformation ɲɛ, o tɛ tensile permanent deformation (daɲɛ kɔrɔmadacogo) ɲɛ, ani a kɔfɛ. Ka fara o kan, ka ɲɛsin lastikuw sigili fɛnw ma, compressive permanent deformation tɛ sigili tansiyɔn walima sigili baara ɲɛfɔcogo ɲuman ye. A ka c’a la, ni degunw lafiyali sɛgɛsɛgɛli bɛ gɛlɛya ka taa a fɛ, o bɛ kɛ sababu ye ka fura in dasirili kɛcogo ɲɛ.

Nin jateminɛ kɛcogo ninnu bɛ kɛ ka lastikuw ka fɛn tiɲɛni banbali baara ɲɛ. Kɔlɔsili: Nin jateminɛ kɛcogo ninnu tɛ se ka kɛ ko bɛɛ la. Ka fara o kan, fɛn o fɛn bɛ se ka fɛn caman sɛgɛsɛgɛ, o bɛ se ka dɔ bɔ fɛn caman tiɲɛni na degun walima tension na, o bɛ se ka nɔ bila fɛn wɛrɛw la, wa a tɛna ɲɛfɔ sɛbɛn kɔnɔ.

1. Vulkanization system .

Aw bɛ jateminɛ kɛ perokisidiw tali la i n’a fɔ fɛnɲɛnamafagalanw, minnu bɛ se ka cc cross-linked bonds (CC cross-linked jɛɲɔgɔnyaw) dilan ani o cogo la ka lastikuw ka sɔgɔli banbali ɲɛ. Etilɛni propilɛni lastikuw ni perokisidi ka vulkanizasiyɔn bɛ se ka dɔ bɔ lastikuw ka degun banbali la. Nafa minnu bɛ perokisidi la ka tɛmɛ kisɛ kan, olu ye perokisidi minɛcogo nɔgɔya ye ani lastikuw ka sɛgɛn banbali dɔgɔyali.

2. Vulkanizasiyɔn waati ni funteni .

Vulkanization temperature ani long long vulcanization time bɛ se ka dɔ fara vulkanization hakɛ kan ani o la ka dɔ bɔ compression set la lastikuw la.

3. Cross-linking density .

Ka dɔ fara lastikuw ka crosslinking density kan, o bɛ se ka lastikuw ka degun banbali dɔgɔya kosɛbɛ.

4. Sulfure vulkanization system .

Walasa ka EPDM fɛnɲɛnamafagalan tiɲɛni banbali dɔgɔya ani ka funteni kunbɛncogo ɲɛ, an bɛ se ka nin 'low deformation' vulkanization system (MASS) jateminɛ: sulfur 0.5phr, zdbc 3phr, zmdc 3phr, DTDM 2PHR, TMTD3PHR.

W suguya neoprene la, diphenylthiourea accelerator kɛli bɛ se ka lastikuw kɛ ni compression banbali deformation dɔgɔman ye, nka aw bɛ aw yɛrɛ tanga CTP ma ka kɛ anti-come agent ye, hali ni a bɛ se ka syɛmasi waati janya, nka a bɛ tiɲɛni caman kɛ compression permanent deformation na.

NBR lastikuw la, vulkanizasiyɔn suguya sugandilen na, kisɛ hakɛ ka kan ka dɔgɔya, aw bɛ a ɲini ka kisɛkisɛ kɛ ka farikolo di i n’a fɔ TMTD walima DTDM walasa ka kisɛ yɔrɔ dɔ bila a nɔ na, ​​kisɛkisɛw ka dɔgɔn, o bɛna lastikuw ka degun banbali baarakɛcogo ɲɛ. Vulkanization system ni HVA-2 ani hyposulfuramide bɛ se ka lastikuw kɛ ni compression compression badaalen dɔgɔman ye.

5. Perokisidi vulkanization system .

BBPIB peroxide sugandili bɛna kɛ sababu ye ka lastikuw kɛ fɛn ye min bɛ se ka fɛn caman tiɲɛ ka ɲɛ. Perokisidi vulkanizasiyɔn sitɛmuw kɔnɔ, co-crosslinkers baara bɛ dɔ fara furakɛlibaliya kan o siratigɛ la, o min bɛ na ni crosslink density (kɛrɛnkɛrɛnnenya la) caman ye, bawo freelinking of free radicals with non saturated bonds bɛ kɛ nɔgɔya la ka tɛmɛ hydrogène ta kan ka bɔ cakɛda saturalenw na. Baara kɛli ni co-crosslinkers ye, o bɛ fɛn caman Changer crosslinking network ani o cogo la ka compression permanent deformation properties ɲɛ ka ɲɛsin adhesive ma.

6. Vulkanizasiyɔn kɔfɛ .

Vulkanizasiyɔn kɔfɛfɛnw bɛ sɔrɔ vulkanizasiyɔn taabolo la, wa Vulkanizasiyɔn kɔfɛ taabolo min bɛ fiɲɛ tansiyɔn na, o bɛ a to o kɔfɛfɛn ninnu ka bɔ, o bɛ kɛ sababu ye ka lastikuw kɛ ka a kɛ fɛn ye.

7. Fluoroelastomer FKM/bisphenol AF vulkanizasiyɔn .

Fluoroelastomers fɛ, bisphenol vulcanizing agent (bisphenol vulkanizing) tali perokisidi vulkanizing (pɛrɛkisidi vulkanizing) nɔ na, ​​o bɛ se ka kɛ sababu ye ka lastikuw kɛ fɛn ye min bɛ se ka fɛn dɔ tiɲɛ ka kɛɲɛ ni fɛn ye min bɛ se ka fɛn caman tiɲɛ.

8. Molecules girinya nɔ .

Lastikuw la, lastikuw sugandili ni molekiyɔmu girinya hakɛ cayalenba ye, o bɛ se ka lastikuw ka degun banbali dɔgɔya kosɛbɛ.

NBR ka lastikuw kama, lastikuw ni Mooney Viscosity ka kan ka kɛ, o bɛ se ka lastikuw kɛ ni compression small compression deformation ye.

9. Neoprene .

W suguya neoprene bɛ ni compression permanent deformation dɔgɔman ye ka tɛmɛ G suguya neoprene kan.

10. EPDM .

Walasa ka lastikuw kɛ ni degun banbali ye, aw bɛ a ɲini ka aw tanga EPDM lastikuw ma minnu ka kirisita ka bon.

11. NBR .

NBR, min ye emulsion polimerize ye ni kuloridi kalisiyɔmu ye i n’a fɔ coagulant, a ka c’a la, a bɛ kɛ ni compression set dɔgɔman ye.

NBR lastikuw kama, n’i b’a fɛ k’i sinsin a ka compression permanent deformation performance kan, o tuma na a ɲini ka suguya caman sugandi minnu bolofara ka bon ani cakɛda caman bɛ ɲɔgɔn minɛ walima suguya minnu bɛ ni acrylonitrile hakɛ dɔgɔman ye.

12. Etilɛni-akirilati lastikuw .

AEM lastikuw ta la, perokisidi vulkanizing furaw bɛ se ka compression set dɔgɔman di ka tɛmɛ diamine vulcanizing agents kan.

13. Resin-based homogenizers .

Aw bɛ aw yɛrɛ tanga resin-based homogenizers (banakisɛfagalanw) tali ma lastikuw la, barisa o bɛ dɔ fara fɛnɲɛnamafagalan ka degun-yɔrɔ kan.

14. Filɛriw .

Ni fasa, a jɔcogo ani a yɔrɔ kɛrɛnkɛrɛnnen bɛ dɔgɔya (a ka c’a la, a bɛ kɛ sababu ye ka fɛnɲɛnamafagalanw hakɛ caya) o bɛna dɔ bɔ degun seti la. O waati kelen na, ka dɔ fara fasa yɔrɔ baara kan, o fana bɛ se ka kɛ sababu ye ka fɛnɲɛnamafagalan ka compression set rezistansi ɲɛ.

15. Silisi .

Silisi fasa dɔgɔyalen min bɛ sɔrɔ furakisɛ la, o bɛna dɔ bɔ degun seti la. Walasa ka se ka compression set dɔgɔman sɔrɔ, a ka kan ka silisi fa ka caya. Ni fasa hakɛ ka ca ni tilayɔrɔ 25 ye (ni a bɛ kɛ ni masa ye), compression permanent deformation de la compound bɛ bonya.

16. Silane kafolikɛla .

Ni an y’a jateminɛ ko sine coupling agent (silane couplage agent) bɛ kɛ silisi min bɛ jigin, o falen hakɛ caman na, nɛgɛtigɛbana bɛ se ka dɔgɔya. Silane coupling agent bɛ se ka dɔ bɔ compression permanent deformation de silica fal lastikuw la, ani fana ka compression permanent deformation of silicate type filller i n’a fɔ bɔgɔ, talcum powder ani lastikuw falen wɛrɛw.

17. Plastikiw .

Ni aw ye plastiki falen hakɛ dɔgɔya lastikuw kɔnɔ, a ka c’a la, o bɛna dɔ bɔ lastikuw ka degun banbali la.