GuzobereKọleji na mahadum

Adhesion - ihe bụ nke a?

E nwere ọtụtụ ụzọ dị iche iche nke mmekọrịta dị n'etiti anụ ahụ na ozu. Otu n'ime ndị a bụ adhesion n'elu. Ka anyị lee ihe a onu na ihe ọ nwere Njirimara.

Gịnị bụ adhesion

The definition na-aghọ ihe doro anya ma ọ bụrụ na anyị chepụta otú a okwu e guzobere. Na Latin adhaesio sụgharịrị dị ka "mma, adhesion, adhesion". N'ihi ya, adhesion - bụghị nanị na njikọ nke heterogeneous condensed ozu na pụtara na ha na kọntaktị. Mgbe edo n'elu kọntaktị, e nwere a pụrụ iche ikpe nke na mmekọrịta. Ọ na-akpọ autohesion. Ma ikpe ọ bụ omume na-abịaru a doro anya na-adọ ókè dị n'etiti data ihe. N'ụzọ dị iche, secrete cohesion, na nke adhesion ụmụ irighiri n'ime ihe onwe ya. Iji mee ka ọ ghọtakwuo, tụlee otu ihe atụ si ndụ. Were PVA mama na ndị nkịtị mmiri. Wee tinye ha n'akụkụ dị iche iche nke otu iko n'elu. Na nke a atụ, mmiri bụ a umi nke bụ pụta ụwa ogbenye adhesion. Ọ dị mfe iji chọpụta site mbịne iko isi n'ala. Cohesion nwekwara ihe e ji mara na ike gị n'ụlọnga. Ọ bụrụ na ị gluu abụọ iberibe nke iko na nrapado, njikọ ahụ ga-abụ pụrụ ịdabere na ezu, ma mgbe ị na ikpokọta ha na plasticine, akpatre adọka n'etiti. Site na ihe anyị nwere ike ikwubi na ya cohesion maka a siri ike nkekọ ga gaghị ezu. Anyị nwere ike sị na ma nke ndị a agha zuo ezu ọ bụla ọzọ.

Types of adhesion na adotara ike ya

Dabere na ihe ahụ na-eme onye ọ bụla ọzọ, na-egosi akụkụ ụfọdụ nke mgbakwunye. The kasị elu uru na-anọchi anya adhesion aa na mmekọrịta siri ike n'elu. Nke a ihe onwunwe bụ nke bara uru ke imewe nke dị iche iche adhesives. Ọzọkwa, ka secrete adhesion nke solids na mmiri mmiri. Ọtụtụ isi ihe nwere ike mata na na-na-ekpebisi ike site na ike na nke a ga na-egosipụta adhesion. Nke a na ebe nke na kọntaktị, ọdịdị nke ịkpọtụrụ ozu na Njirimara nke ha na-ebupụta. Ke adianade do, ma ọ bụrụ na ọ dịkarịa ala otu n'ime ụzọ ihe na-agba ọkụ ụgwọ ga-apụta na na mmekọrịta nke onyinye-acceptor nkekọ, nke ga-eme ka traction. A ịrịba ama ọrụ na-egwuri site capillary odide mmiri Alụlụụ n'elu. N'ihi na nke a onu n'etiti mkpụrụ na nrapado nwere ike ime chemical mmeghachi omume nke na-eme ka ike nke nkwurịta okwu. Ọ bụrụ na a siri ike ahu iji mikpuo n'ime mmiri mmiri, anyị nwere ike ịhụ a n'ihi na na-na-akpata adhesion - na-wetting. Nke a na onu a na-eji maka sere, gluing, soldering, lubrication, inwetara nkume, wdg Iji kpochapụ adhesion mmanu na-eji, nke na-egbochi kpọmkwem kọntaktị nke na-ebupụta, na iji ike ya, ọzọ, na-ebighị nke n'elu site a n'ibu ma ọ bụ chemical ọgwụgwọ, n'ebe akpa radieshon ma ọ bụ itinye iche iche ọtọ adịghị. Quantitatively, ogo dị otú ahụ na mmekọrịta kpebisiri ike site na ike nke a ga-etinyere na iji ekewapụ ndị na ịkpọtụrụ ebupụta. Iji tụọ adhesion ike, a pụrụ iche ngwaọrụ akpọ a adgeziometrami. The otu set nke ụzọ ya mkpebi siri ike bụ mara adgeziometrii.

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