Kodi mfundo zazikuluzikulu zomatira zomatira zosungunula zotentha zosawononga chilengedwe ndi ziti?

Zomatira zotentha zotentha ndi zomatira zapulasitiki zomwe thupi lake limasintha ndi kutentha mkati mwa kutentha kwina. Ukatenthedwa ndi kusungunuka kutentha kwina, umakhala madzi omwe amatha kuyenda ndipo amakhala ndi mamasukidwe enaake. Zomatira zotentha za EVA zosungunuka ndi zofiirira kapena zoyera. Zomatira zotentha za EVA zimapangidwa ndi utomoni woyambira, tackifier, viscosity modifier ndi antioxidant.

Ndiwopanda poyizoni komanso wopanda kukoma, ndipo ndi wokonda zachilengedwe. Lingaliro lodziwika bwino la zomatira zotentha zosungunuka ndi izi:

1. Kufewetsa, kutentha komwe chinthu chimafewera. Makamaka amatanthauza kutentha komwe polima amorphous amayamba kufewa. Sizogwirizana kokha ndi mapangidwe a polima, komanso kukula kwa kulemera kwake kwa maselo. Pali njira zambiri zoyezera.

Njira zosiyanasiyana zoyezera nthawi zambiri zimabweretsa zotsatira zosagwirizana. Njira zomwe zimagwiritsidwa ntchito kwambiri ndi njira ya Vicat ndi njira yapadziko lonse lapansi.

2. Viscosity: Pamene madzi akuyenda, mphamvu ya kukangana kwamkati pakati pa mamolekyu ake kumatchedwa mamasukidwe amadzimadzi. The mamasukidwe akayendedwe amasonyezedwa ndi mamasukidwe akayendedwe, amene ndi kukana chinthu ntchito yodziwika katundu wa madzi. mamasukidwe akayendedwe amagawidwa kukhala zazikulu mamasukidwe akayendedwe, kinematic mamasukidwe akayendedwe akayendedwe akayendedwe akayendedwe.

3. Kulimba kwa peel: Mphamvu yofunikira kuti musewere m'lifupi mwake kuchokera pamalo olumikizana ndi zinthu zomwe zimamatirana. Ngodya ya peeling ndi madigiri 90 kapena madigiri 180, ndipo imodzi ndi: Newton/mita (N/m).

4. Kuwombera koyambirira: Pakakhala kukhudzana kwachidule pakati pa chinthucho ndi zomatira pamwamba pa tepi yowonongeka yowonongeka ndi kupanikizika kochepa, kumangirira kwa tepi yomatira ku chinthucho kumatchedwa tack yoyamba. Mfundo yoyesera, pindani mpira wachitsulo pamtunda womata wa tepi yomatira yomwe ili lathyathyathya pa mbale yopendekera.

Malingana ndi kukula kwa mpira wachitsulo umene malo omata a kutalika kwake akhoza kumamatira,

5. Kugwira mphamvu, kuthekera kwa tepi yomatira kukana kusamutsidwa pamene kulemera ndi kulemera kwake kumaimitsidwa molunjika kumbali ya kutalika kwa tepi yomatira yomwe imayikidwa pa adherend. Gwiritsani ntchito gawo loyeserera kuti musunthe mtunda wina wa nthawi kapena nthawi inayake kuti musunthe tebulo lakutali.

6. Kugwirizana kwamtengo wapatali ndiko kukopana pakati pa zigawo zoyandikana mkati mwa chinthu chomwecho, ndipo kukopana kumeneku ndiko kuwonetsera mphamvu ya maselo pakati pa mamolekyu a chinthu chomwecho.

Zimangowonetsedwa pamene mamolekyu ali pafupi kwambiri (osakwana 10e-6 cm).

7.mphamvu yamphamvu pa nthawi yopuma, muyeso yowonongeka, kupanikizika kwachitsulo kwachitsanzocho mpaka kusweka ndi mphamvu zowonongeka, zomwe zimatchedwa mphamvu zowonongeka mu maphunziro, ndipo nthawi zambiri zimatchedwa mphamvu zowonongeka muzogwiritsira ntchito zomangamanga. mphamvu.

8. Kukana kwanyengo kumatanthawuza mndandanda wa zochitika zokalamba monga kusinthika ndi kusintha kwa zinthu zapulasitiki chifukwa cha kuwala kwa dzuwa, kusintha kwa kutentha, mphepo ndi mvula ndi zina zakunja. Mwa iwo, kuwala kwa ultraviolet ndi chinthu chofunikira kwambiri polimbikitsa kukalamba kwa mapulasitiki.

9. Kuchiza nthawi: nthawi yaifupi kwambiri kuti guluu akanikizidwe pakati pa magawo awiri kuti apange mgwirizano wolimba, ndipo nthawi yogwira ntchito yokakamiza siyenera kukhala yocheperapo kuposa nthawi yochiritsa kuti agwirizane bwino.

10. Nthawi yotsegula: imatanthawuza nthawi yomwe guluu likugwiritsidwa ntchito mpaka pamwamba pa chigawocho chikhoza kumangirira ku gawo lapansi. Guluuyo amakhala ndi mgwirizano wabwino mkati mwa nthawi yotseguka. Zimakhudzana ndi zinthu monga guluu, kutentha, gawo lapansi, ndi kuchuluka kwa guluu.