Enwere ike kewaa waya na eriri USB n'ime ihe ndị na-eduzi, ihe mkpuchi, ihe nchebe, ihe mkpuchi, ihe ndochi na ihe ndị ọzọ dịka akụkụ na ọrụ ha si dị.Dị ka ihe onwunwe si dị, ọ nwere ike kewaa n'ime metal (ọla kọpa, aluminum, aluminum alloy, ígwè), plastic (PVC, PE, PP, XLPE / XL-PVC, PU, ​​TPE / PO), roba, wdg Ma ụfọdụ. nke ihe ndị a na-ahụkarị n'ọtụtụ owuwu.Karịsịa ihe ndị dị na thermoplastic, dị ka polyvinyl chloride, polyethylene, ọ bụrụhaala na enwere ike iji mgbanwe nke akụkụ nke usoro ahụ mee ihe na mkpuchi ma ọ bụ n'ọbọ.

Ọzọ, anyị na-ewebata ihe nkịtị na-abụghị ọla na cable akụrụngwa

Otu, polyvinyl chloride (PVC)

A na-ejikarị PVC eme ihe dị ka ihe mkpuchi na ihe nchebe.PVC dị ka waya na mkpuchi mkpuchi eriri: adịghị mfe ọkụ, nkwụsị nke ịka nká, nkwụsị mmanụ, nguzogide kemịkalụ, mmetụta mmetụta, agba agba dị mfe;Otú ọ dị, n'ihi nnukwu dielectric na-adịgide adịgide, a na-ejikarị ya eme ihe dị ka ihe mkpuchi nke eriri obere voltaji na eriri njikwa.

PVC dị ka waya na USB n'ọbọ arụmọrụ: na ezi eyi iguzogide, iguzogide mmanụ, acid, alkali, bacteria, mmiri na ìhè anyanwụ, na ire ọkụ edinam nwere onwe-emenyụ arụmọrụ;Ọbọ PVC nwere opekempe na-arụ ọrụ nke -40 Celsius C yana nguzogide okpomọkụ dị elu nke 105 Celsius.

Abụọ, polyethylene (PE)

PE n'ozuzu anụ ahụ Njirimara: na-acha ọcha waxy, translucent, nro na siri ike, dịtụ ike gbatịa, ìhè karịa mmiri, na-adịghị egbu egbu;Njirimara ọkụ: ọkụ ọkụ, site na ọkụ na-aga n'ihu na-ere ọkụ, njedebe elu nke ọkụ na-acha odo odo na njedebe dị ala na-acha anụnụ anụnụ, na-agbaze na-agbaze mgbe ọ na-ere ọkụ, na-enye ísì ụtọ nke paraffin;Polyethylene nhazi agbaze ebe nso bụ 132 ~ 1350C, mgbanye okpomọkụ bụ 3400C, spontaneous combustion okpomọkụ bụ 3900C.

Polyethylene (PE) na-ekewa n'ime LDPE, MDPE, HDPE, FMPE ọtụtụ edemede.

1, LDPE: obere njupụta polyethylene bụ otu n'ime usoro kachasị mfe nke polyethylene, nke a makwaara dị ka obere nrụgide polyethylene, njirimara nhazi ahụ adịghị adị, ọ nwere kristal dị ala na ebe dị nro, nwere mgbanwe dị mma, elongation, mkpuchi eletriki, nghọta, na ike mmetụta dị elu.Obere njupụta polyethylene nwere ike arụ ọrụ na-adịghị mma, obere okpomọkụ na-eguzogide na, na mgbakwunye, adịghị ike doro anya bụ adịghị ike na-eguzogide nrụgide gburugburu ebe obibi.

2, MDPE: polyethylene ọkara njupụta, nke a makwaara dị ka polyethylene na-arụ ọrụ nke ọma na Philip polyethylene, arụmọrụ ya na njupụta polyethylene dị elu nuo, a naghịzi eji ụlọ ọrụ mmepụta ihe, ọ bụghị nkọwa ebe a.

3, HDPE, polyethylene dị elu nke nwere obere njupụta polyethylene, nke a makwaara dị ka polyethylene nrụgide dị elu, ọ nwere arụmọrụ zuru oke, dị ka nkwalite okpomọkụ na ike ọrụ, dị ka ogologo nkwụsị, ike na-ehulata, ike mkpakọ na ike shiee), na emeziwanye ikuku mmiri na ihe mgbochi gas, nguzogide mgbawa gburugburu ebe obibi dị elu.

4, FMPE: PE foamed bụ ihe a na-ejikarị ụfụfụ eme ihe, na-eji chemical foamed polyethylene, ya dielectric mgbe niile nwere ike ibelata ihe dị ka 1.55.Ọ bụrụ na teknụzụ ọhụrụ nke ịnakwere ụfụfụ anụ ahụ, ya bụ, mgbe extrusion na gas inert (nitrogen ma ọ bụ ikuku) n'ime ụfụfụ polyethylene a wụrụ awụ, enwere ike nweta obere egosipụta site na ụfụfụ polyethylene, enwere ike ịchịkwa ogo ịfụfụ n'etiti 35-40. %, karịa 40% Zhui, dielectric ya mgbe niile nwere ike belata na 1.20 ma ọ bụ karịa, na n'ihi na ndị na-adịghị eji chemical foaming gị n'ụlọnga, The mkpuchi adịghị nwere ihe foaming ihe fọdụrụnụ, na dielectric ọnwụ nwere ike dị ukwuu ibelata, nke ruru eru. ọkwa nke mkpuchi ikuku.

Polyethylene nwere arụmọrụ mkpuchi ọkụ eletrik mara mma ma ejiri ya mee ihe na mkpuchi ikuku nkwukọrịta.Iji meziwanye ihe ngosi teknụzụ na akụ na ụba nke eriri nkwurịta okwu, a na-ejikarị polyethylene foam eme ihe.Iji meziwanye arụmọrụ mgbawa gburugburu ebe obibi, na mgbakwunye na iji XPE, nwekwara ike ịhọrọ nchịkọta agbaze nke obere PE.N'ozuzu, ka ịdị arọ molekụla ahụ dị ntakịrị (nke ahụ na-agbaze index na-adị elu), nke na-akawanye njọ na nrụgide gburugburu ebe obibi mgbawa.Ndekọ agbaze n'okpuru 0.4 nwere ike zere mgbawa nrụgide gburugburu ebe obibi.Njupụta nke 0.950, ihe nrịbama na-agbaze nke ụdị dị iche iche, nke kachasị na-eguzogide nrụgide gburugburu ebe obibi.Ọ bụrụ na njupụta dị ukwuu karịa 0.95, nrụgide nrụgide gburugburu ebe obibi na-agbawa njọ na-akawanye njọ, ma njupụta dị ala nke nwere otu nchịkọta agbaze ka mma.Agbanyeghị, ịkpụzi HDPE na-enwekarị nrụgide dị n'ime, nke ekwesịrị itinye nlebara anya na usoro eji.

Ịgwakọta PE na EVA n'otu akụkụ nwere ike imeziwanye mgbawa nrụgide gburugburu ebe obibi;Ngwakọta ya na PP nwere ike ime ka ike sie ike;Ejikọtara ya na PE nke njupụta dị iche iche, nwere ike gbanwee ịdị nro na ike ya.

Ethylene - vinyl acetate copolymer (EVA)

EVA bụ ụdị thermoplastic na-agbanwe dị ka nuo rubber, arụmọrụ ya na ọdịnaya nke vinyl acetate (VA) nwere mmekọrịta dị ukwuu: obere VA dị ka polyethylene nrụgide dị elu, na VA dị ka roba.EVA nuo polyethylene dị elu nwere obere ọdịnaya VA, ike dị nro na mmetụta dị mma, dabara adaba maka imepụta ihe mejupụtara.

EVA nwere ezigbo elasticity na obere okpomọkụ mgbanwe, kemịkalụ na-eguzogide, ihu igwe na-eguzogide, na LDPE copolymerization, nwere ike melite gburugburu ebe obibi cracking nguzogide nke LDPE, mmetụta na-eguzogide, ike na adhesion n'etiti eduzi na mkpuchi.

Tetrapolypropylene (PP)

Nnukwu ike ike nke polypropylene bụ 0.89 ruo 0.91, nke bụ nke kacha nta na plastik nkịtị.Ọ nwere ike n'ibu nke ọma, okpomọkụ kachasị dị nro na resin thermoplastic, yana ezigbo nguzogide okpomọkụ dị ala na nguzogide ịka nká.Naanị nguzogide ntụgharị anya adịghị mma, mana enwere ike imeziwanye ya site na copolymerization na stabilizers.

General Njirimara nke polypropylene: ọdịdị PP yiri nnọọ HDPE, ọ bụ a na-acha ọcha waxy siri ike, ọzọ transperent karịa PE, na-adịghị egbu egbu, combustible ga-anọgide na-ere ọkụ mgbe ọkụ, na hapụ isi nke mmanụ ala nuo.

E jiri ya tụnyere polyethylene, polypropylene nwere àgwà ndị a dị iche iche:

1, PP elu hardness dị elu karịa PE, eyi iguzogide na ekwe deformation ikike dị nnọọ mma, otú PP maara dị ka "obere njupụta elu ike plastic".

2, PP dị mma karịa PE uru ọzọ bụ ihe fọrọ nke nta ka ọ bụrụ ihe mgbagwoju anya gburugburu ebe obibi, PP nwere ezigbo nguzogide nrụgide gburugburu ebe obibi.Otú ọ dị, n'ihi ịdị elu nke usoro ihe omimi nke PP, mmetụta ya na-arụ ọrụ na ụlọ okpomọkụ na obere okpomọkụ dị nnọọ njọ.

3, Ọrụ mkpuchi ọkụ eletrik nke PP: PP bụ ihe na-abụghị polar, ya mere enwere ihe mkpuchi ọkụ eletrik dị mma.

Ihe mkpuchi ọkụ eletrik ya yiri LDPE n'ụzọ bụ isi, ọ naghị agbanwekwa n'ogo ogologo oge.N'ihi na ya dị nnọọ ala njupụta, dielectric mgbe nile bụ nta karịa LDPE (ε = 2.0 ~ 2.5), dielectric ọnwụ Angle tangent bụ 0.0005 ~ 0.001, olu resistivity nke 1014 ω.M, mgbawa ike ubi dịkwa oke elu, 30MV / m;Tụkwasị na nke ahụ, ntinye mmiri dị ntakịrị, ya mere enwere ike iji PP mee ihe dị ka ihe mkpuchi mkpuchi ugboro ugboro.

Ihe polyester ise

Ụdị ihe a na-eji modul dị elu, akwa akwa akwa, akwa mkpuchi akwa, akwa na-agbanwe na obere lag, njedebe elu nke okpomọkụ dị na ya bụ 1500C, karịa roba thermoplastic ndị ọzọ, ma ọ nwekwara ezigbo nguzogide mmanụ, ihe mgbaze. njirimara.