Zvimiro uye maitiro ekugadzirwa kwematehwe echisikigo, polyurethane (PU) microfiber synthetic dehwe uye polyvinyl chloride (PVC) yeganda rekugadzira zvakaenzaniswa, uye zvinhu zvemukati zvakaedzwa, zvichienzaniswa nekuongororwa. Mhedzisiro yacho inoratidza kuti maererano nemakanika, kuita kwakazara kwePU microfiber synthetic leather iri nani pane yedehwe rechokwadi uye PVC synthetic dehwe; maererano nekukotama kuita, kuita kwePU microfiber synthetic leather uye PVC synthetic dehwe yakafanana, uye kubhenda kuita kuri nani pane kwedehwe rechokwadi mushure mekuchembera mukupisa kwakanyorova, kupisa kwakanyanya, kuchinjika kwemamiriro ekunze, uye pakudziya kwakadzika; maererano nekupfeka kuramba, kupfeka uye kubvarura kuramba kwePU microfiber synthetic leather uye PVC synthetic dehwe iri nani pane yedehwe chairo; maererano nezvimwe zvinhu zvemukati, iyo mhute yemvura permeability yedehwe rechokwadi, PU microfiber synthetic dehwe uye PVC synthetic dehwe inodzikira zvakare, uye dimensional kugadzikana kwePU microfiber synthetic leather uye PVC synthetic dehwe mushure mekuchembera kwekushisa kwakafanana uye kuri nani pane kuya kwedehwe chairo.
Sechikamu chakakosha chemukati memotokari, machira echigaro chemotokari anokanganisa zvakananga ruzivo rwekutyaira kwemushandisi. Dehwe rechisikigo, polyurethane (PU) microfiber synthetic dehwe (inozonzi PU microfiber leather) uye polyvinyl chloride (PVC) yeganda rekugadzira zvese zvinowanzoshandiswa zvigaro zvejira.
Dehwe rechisikigo rine nhoroondo refu yekushandiswa muhupenyu hwevanhu. Nekuda kwemakemikari zvimiro uye katatu helix chimiro checollagen pachayo, ine zvakanakira kupfava, kupfeka kuramba, simba repamusoro, kunyura kwakakwira uye kupenya kwemvura. Dehwe rechisikigo rinonyanya kushandiswa mumicheka yechigaro yepakati-kusvika-yepamusoro-yekupedzisira mhando muindasitiri yemotokari (kunyanya dehwe remombe), iyo inogona kusanganisa umbozha uye kunyaradza.
Nekuvandudzwa kwevanhu, kugoverwa kwematehwe echisikigo kwakaoma kuzadzisa kudiwa kwevanhu kuri kukura. Vanhu vakatanga kushandisa makemikari zvinhu uye nzira dzekugadzira zvinotsiva zvematehwe echisikigo, kureva dehwe rekugadzira. Kuuya kwePVC synthetic leather inogona kuteverwa kumashure kwe20 Mumakore ekuma1930, yaive chizvarwa chekutanga chezvigadzirwa zvematehwe. Hunhu hwayo hune simba rakawanda, kupfeka kuramba, kupeta kuramba, asidhi uye alkali kuramba, nezvimwewo, uye inodhura uye iri nyore kugadzirisa. PU microfiber dehwe rakagadzirwa zvakabudirira muma1970s. Mushure mekufambira mberi uye kuvandudzwa kwemashandisirwo emazuva ano tekinoroji, senge rudzi rutsva rwechigadzirwa chematehwe ematehwe, yakashandiswa zvakanyanya mukupfeka kwepamusoro-soro, fenicha, mabhora, mukati memotokari uye mamwe minda. Hunhu hwezvinhu zvePU microfiber dehwe ndehwekuti inonyatso tevedzera chimiro chemukati uye mameseji emhando yeganda rechisikigo, uye ine kusimba kuri nani pane rechokwadi dehwe, yakawanda inodhura mutengo wakanakira uye hushamwari kwezvakatipoteredza.
Chikamu chekuedza
PVC synthetic dehwe
Chimiro chePVC cheganda chekugadzira chinonyanya kukamurwa kuita Iri pamusoro, PVC dense layer, PVC foam layer, PVC adhesive layer uye polyester base jira (ona Mufananidzo 1). Munzira yekuburitsa bepa (kuchinjisa coating nzira), iyo PVC slurry inotanga kukweshwa kekutanga kuita PVC dense layer (surface layer) pabepa rekuburitsa, uye inopinda muovheni yekutanga yegel plasticization uye kutonhora; chechipiri, mushure mekukwenya kwechipiri, PVC foam layer inoumbwa pahwaro hwePVC dense layer, uyezve plasticized uye kutonhorera muchoto chechipiri; chechitatu, mushure mekucheka kwechitatu, PVC yakanamatira layer (pasi pasi) inoumbwa, uye inosungirirwa nemucheka wepasi, uye inopinda muvheni yechitatu yepurasitiki uye kupupa; pakupedzisira, inobviswa kubva papepa rekuburitsa mushure mekutonhodza nekugadzira (ona Mufananidzo 2).
Natural dehwe uye PU microfiber dehwe
Mamiriro ezvinhu ematehwe echisikigo anosanganisira mutsara wezviyo, chimiro chefiber uye chepamusoro (ona Mufananidzo 3(a)). Maitiro ekugadzira kubva kumatehwe akasvibirira kuenda kune ekugadzira akapatsanurwa kuita nhanho nhatu: kugadzirira, kuomesa uye kupedza (ona Mufananidzo 4). Chinangwa chepakutanga chekugadzirwa kwePU microfiber dehwe ndeyekunyatso kutevedzera echisikigo dehwe maererano nekuumbwa kwezvinhu uye kutaridzika kwemavara. Mamiriro ezvinhu ePU microfiber dehwe anonyanya kusanganisira PU layer, base chikamu uye pamusoro pekuvhara (ona Mufananidzo 3 (b)). Pakati pazvo, chikamu chepasi chinoshandisa mabundled microfibers ane chimiro chakafanana uye kuita kune akasungirirwa collagen fibers muganda rechisikigo. Kuburikidza nekurapwa kwakasarudzika, jira repamusoro-density risiri rakarukwa rine matatu-dimensional network sisitimu inogadzirwa, yakasanganiswa nePU yekuzadza zvinhu ine yakavhurika microporous chimiro (ona Mufananidzo 5).
Kugadzirira kwemuenzaniso
Iwo masampuli anouya kubva kune makuru emotokari zvigaro zvemachira ekutengesa pamusika wepamba. Mienzaniso miviri yechinhu chimwe nechimwe, dehwe rechokwadi, PU microfiber dehwe uye PVC synthetic dehwe, inogadzirwa kubva kune 6 akasiyana vatengesi. Mienzaniso yacho inonzi chaiyo dehwe 1# uye 2#, PU microfiber yematehwe 1# uye 2#, PVC yakagadzirwa nematehwe 1# uye 2#. Rudzi rwemasamples dema.
Testing uye characterization
Yakasanganiswa nezvinodiwa zvekushandisa kwemotokari yemidziyo, masampula ari pamusoro anofananidzwa maererano nemakanika zvivakwa, kupeta kuramba, kupfeka kuramba uye zvimwe zvinhu. Iwo chaiwo bvunzo zvinhu uye nzira dzinoratidzwa muTafura 1.
Tafura 1 Yakananga bvunzo zvinhu uye nzira dzekuyedza kuita kwezvinhu
| Aihwa. | Performance classification | Test zvinhu | Equipment name | Test method |
| 1 | Main mechanical properties | Kusimba simba/kurebesa panguva yekuzorora | Zwick tensile yekuyedza muchina | DIN EN ISO 13934-1 |
| Simba rekubvarura | Zwick tensile yekuyedza muchina | DIN EN ISO 3377-1 | ||
| Static elongation/permanent deformation | Suspension bracket, huremu | PV 3909(50 N/30 min) | ||
| 2 | Kupeta kuramba | Kupeta bvunzo | Leather bending tester | DIN EN ISO 5402-1 |
| 3 | Abrasion resistance | Kutsanya kwemavara kune kukweshana | Leather friction tester | DIN EN ISO 11640 |
| Ball plate abrasion | Martindale abrasion tester | VDA 230-211 | ||
| 4 | Zvimwe zvinhu zvinhu | Kukwanisa kwemvura | Leather mwando tester | DIN EN ISO 14268 |
| Horizontal flame retardancy | Horizontal flame retardant yekuyeresa mudziyo | TL. 1010 | ||
| Dimensional kugadzikana (shrinkage rate) | Kupisa kwekushisa kwepamusoro, kamuri yekuchinja kwemamiriro ekunze, mutongi | - | ||
| Kuburitsa hwema | High tembiricha ovheni, kunhuwa kuunganidza mudziyo | VW50180 |
Kuongorora nekukurukurirana
Mechanical properties
Tafura 2 inoratidza iyo mechaniki zvivakwa bvunzo data yedehwe rechokwadi, PU microfiber yematehwe uye PVC synthetic dehwe, uko L inomiririra iyo yemhando warp gwara uye T inomiririra iyo weft kutungamira. Zvinogona kuonekwa kubva kuTable 2 kuti maererano nekusimba kwesimba uye kureba panguva yekuzorora, simba rekusimba reganda rechisikigo mune zvose warp uye weft nzira yakakwirira kudarika yePU microfiber yeganda, ichiratidza simba riri nani, nepo kureba kwePU microfiber yeganda yakakura uye kuoma kuri nani; nepo kusimba kwekusimba uye kurebesa pakuputika kwePVC yeganda rekugadzira zvese zvakaderera pane izvo zvezvimwe zvinhu zviviri. Panyaya ye static elongation uye zvachose deformation, simba rekusimba reganda rechisikigo rakakwira kupfuura iro rePU microfiber dehwe, richiratidza kusimba kuri nani, nepo kureba kwePU microfiber dehwe kwakakura uye kuoma kuri nani. Panyaya yedeformation, deformation yekusingaperi yePU microfiber yedehwe ndiyo idiki pane ese ari maviri ewarp uye weft nzira (avhareji deformation isingaperi mugwara gwara iri 0.5%, uye avhareji deformation isingaperi munzira yeweft ndeye 2.75%), zvichiratidza kuti iyo chinhu chine yakanakisa kudzoreredza kuita mushure mekutambanudzwa, iri nani pane yechokwadi PVC dehwe uye ganda rekugadzira. Static elongation inoreva dhigirii rekurebesa deformation yechinhu pasi pekushushikana kwemamiriro panguva yekuungana kwechigaro chivharo. Hapana chakajeka chinodiwa muyero uye inongoshandiswa sereferensi kukosha. Panyaya yekubvarura simba, hunhu hwematatu emhando masampuli akafanana uye anogona kusangana nezvinodiwa.
Tafura 2 Mechanical zvivakwa bvunzo mhedzisiro yedehwe rechokwadi, PU microfiber dehwe uye PVC synthetic dehwe.
| Muenzaniso | Tensile simba/MPa | Elongation panguva yekuzorora/% | Static elongation/% | Permanent deformation/% | Simba rekubvarura/N | |||||
| L | T | L | T | L | T | L | T | L | T | |
| Dehwe rechokwadi 1# | 17.7 | 16.6 | 54.4 | 50.7 | 19.0 | 11.3 | 5.3 | 3.0 | 50 | 52.4 |
| Dehwe rechokwadi 2# | 15.5 | 15.0 | 58.4 | 58.9 | 19.2 | 12.7 | 4.2 | 3.0 | 33.7 | 34.1 |
| Genuine dehwe mwero | ≥9.3 | ≥9.3 | ≥30.0 | ≥40.0 | ≤3.0 | ≤4.0 | ≥25.0 | ≥25.0 | ||
| PU microfiber dehwe 1# | 15.0 | 13.0 | 81.4 | 120.0 | 6.3 | 21.0 | 0.5 | 2.5 | 49.7 | 47.6 |
| PU microfiber dehwe 2# | 12.9 | 11.4 | 61.7 | 111.5 | 7.5 | 22.5 | 0.5 | 3.0 | 67.8 | 66.4 |
| PU Microfiber yematehwe chiyero | ≥9.3 | ≥9.3 | ≥30.0 | ≥40.0 | ≤3.0 | ≤4.0 | ≥40.0 | ≥40.0 | ||
| PVC synthetic dehwe I# | 7.4 | 5.9 | 120.0 | 130.5 | 16.8 | 38.3 | 1.2 | 3.3 | 62.5 | 35.3 |
| PVC yakagadzirwa nematehwe 2# | 7.9 | 5.7 | 122.4 | 129.5 | 22.5 | 52.0 | 2.0 | 5.0 | 41.7 | 33.2 |
| PVC synthetic leather standard | ≥3.6 | ≥3.6 | ≤3.0 | ≤6.0 | ≥30.0 | ≥25.0 | ||||
Kazhinji, iyo PU microfiber yematehwe masampuli ane yakanaka tensile simba, kureba panguva yekuzorora, kusingaperi deformation uye kubvarura simba, uye yakazara ma mechanic zvivakwa zviri nani pane izvo zvedehwe rechokwadi uye PVC synthetic matehwe samples.
Kupeta kuramba
Matunhu eiyo kupeta kuramba bvunzo masampula akakamurwa chaizvo kuita matanhatu marudzi, anoti yekutanga nyika (isina kuchembera nyika), yakanyorova kupisa kuchembera, yakadzika tembiricha mamiriro (-10 ℃), xenon light aging state (PV1303/3P), yakanyanya tembiricha yekuchembera (100 ℃/168h) uye mamiriro ekunze alternation kuchembera (PV20P0). Iyo nzira yekupeta ndeye kushandisa ganda rekupeta chiridzwa kugadzirisa magumo maviri eiyo rectangular sampu muhurefu hwekutungamira pane ekumusoro uye ezasi mabhanhire echiridzwa, kuitira kuti sampuli ive 90 °, uye inoramba ichikotama pane imwe kumhanya uye kona. Iko kupeta kwekuita kwekuedza migumisiro yeganda rechokwadi, PU microfiber leather uye PVC synthetic leather inoratidzwa muTebhu 3. Inogona kuonekwa kubva paTable 3 kuti chaiyo yeganda, PU microfiber yematehwe uye PVC synthetic leather samples zvose zvakapetwa mushure me100,000 nguva mu 100,000 nguva mu 100,000 nguva muchiedza chekutanga uye 100 nguva ye100. Inogona kuchengetedza mamiriro akanaka pasina kuputika kana kushungurudzika kuchena. Mune dzimwe nyika dzakasiyana dzekuchembera, dzinoti, kunyorova kupisa kuchembera, kuchembera kwakanyanya, uye kuchinjika kwemamiriro ekunze kuchembera yePU microfiber yeganda uye PVC yeganda rekugadzira, masampuli anogona kumira makumi matatu emakumi matatu ekubhenda bvunzo. Mushure me7,500 kusvika 8,500 bvunzo dzekukotama, kutsemuka kana kucheneruka kwekushushikana kwakatanga kuoneka mumvura inopisa yekuchembera uye tembiricha yekuchembera mamiriro ematehwe chaiwo, uye kuoma kwekupisa kwekuchembera (168h/70 ℃/75%) kwakadzikira pane kuya kwePU microfiber dehwe. Fiber dehwe uye PVC synthetic dehwe (240h/90℃/95%). Saizvozvo, mushure me14,000 ~ 15,000 yekukotama bvunzo, makatsemuka kana kusagadzikana kuchena kunoonekwa mune yeganda mushure mekuchinja kwemamiriro ekunze kuchembera. Izvi zvinodaro nekuti kupetuka kwedehwe kupeta kunonyanya kuenderana neakasikwa zviyo layer uye faibha chimiro chedehwe rekutanga, uye kuita kwayo hakuna kunaka senge yemakemikari ekugadzira zvinhu. Zvichienderana, izvo zvemukati zvinodiwa zvematehwe zvakare zvakaderera. Izvi zvinoratidza kuti zvinhu zveganda zvakanyanya "kutetema" uye vashandisi vanofanirwa kungwarira kana kuterera kugadzirisa panguva yekushandiswa.
Tafura 3 Kupeta kuita bvunzo mhedzisiro yedehwe rechokwadi, PU microfiber dehwe uye PVC yekugadzira dehwe.
| Muenzaniso | Mamiriro ekutanga | Wet kupisa kuchembera mamiriro | Low tembiricha mamiriro | Xenon chiedza kuchembera mamiriro | High tembiricha kuchembera mamiriro | Climate alternation kuchembera mamiriro ekunze |
| Dehwe rechokwadi 1# | 100,000 nguva, hapana kutsemuka kana kunetseka kuchena | 168 h/70 ℃/75% 8 000 nguva, kutsemuka kwakatanga kuoneka, kunetseka kuchena. | 32 000 nguva, makatsemuka akatanga kuoneka, hapana kunetseka kuchena | 10 000 nguva, hapana kutsemuka kana kushushikana kuchena | 7500 nguva, makatsemuka akatanga kuoneka, hapana kunetseka kuchena | 15 000 nguva, makatsemuka akatanga kuoneka, hapana kunetseka kuchena |
| Dehwe rechokwadi 2# | 100,000 nguva, hapana kutsemuka kana kunetseka kuchena | 168 h/70 ℃/75% 8 500 nguva, makatsemuka akatanga kuoneka, kunetseka kuchena. | 32 000 nguva, makatsemuka akatanga kuoneka, hapana kunetseka kuchena | 10 000 nguva, hapana kutsemuka kana kushushikana kuchena | 8000 nguva, makatsemuka akatanga kuoneka, hapana kunetseka kuchena | 4000 nguva, makatsemuka akatanga kuoneka, hapana kunetseka kuchena |
| PU microfiber dehwe 1# | 100,000 nguva, hapana kutsemuka kana kunetseka kuchena | 240 h/90 ℃/95% 30 000 nguva, hapana kutsemuka kana kunetseka kuchena | 35 000 nguva, hapana kutsemuka kana kushushikana kuchena | 10 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena |
| PU microfiber dehwe 2# | 100,000 nguva, hapana kutsemuka kana kunetseka kuchena | 240 h/90 ℃/95% 30 000 nguva, hapana kutsemuka kana kunetseka kuchena | 35 000 nguva, hapana kutsemuka kana kushushikana kuchena | 10 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena |
| PVC yakagadzirwa nematehwe 1# | 100,000 nguva, hapana kutsemuka kana kunetseka kuchena | 240 h/90 ℃/95% 30 000 nguva, hapana kutsemuka kana kunetseka kuchena | 35 000 nguva, hapana kutsemuka kana kushushikana kuchena | 10 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena |
| PVC yakagadzirwa nematehwe 2# | 100,000 nguva, hapana kutsemuka kana kunetseka kuchena | 240 h/90 ℃/95% 30 000 nguva, hapana kutsemuka kana kunetseka kuchena | 35 000 nguva, hapana kutsemuka kana kushushikana kuchena | 10 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena |
| Yechokwadi yedehwe mwero zvinodiwa | 100,000 nguva, hapana kutsemuka kana kunetseka kuchena | 168 h/70 ℃/75% 5 000 nguva, hapana kutsemuka kana kunetseka kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena | 10 000 nguva, hapana kutsemuka kana kushushikana kuchena | Hapana zvinodiwa | Hapana chinodiwa |
| PU microfiber yematehwe chiyero zvinodiwa | 100,000 nguva, hapana kutsemuka kana kunetseka kuchena | 240 h/90 ℃/95% 30 000 nguva, hapana kutsemuka kana kunetseka kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena | 10 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena | 30 000 nguva, hapana kutsemuka kana kushushikana kuchena |
Kazhinji, kupeta kwematehwe, PU microfiber dehwe uye PVC synthetic dehwe samples yakanaka mune yekutanga mamiriro uye xenon chiedza kuchembera mamiriro. Mumamiriro ekunyorova kupisa kuchembera, tembiricha yakadzika, tembiricha yekuchembera uye shanduko yemamiriro ekunze kuchembera, kupeta kwePU microfiber yeganda uye PVC synthetic dehwe zvakafanana, zviri nani pane izvo zvedehwe.
Abrasion resistance
Iyo abrasion kuramba bvunzo inosanganisira friction color fastness bvunzo uye bhora ndiro abrasion bvunzo. The wear resistance test results of dehwe, PU microfiber leather uye PVC synthetic leather inoratidzwa muTebhurari 4. The friction color fastness test results inoratidza kuti dehwe, PU microfiber leather uye PVC synthetic leather samples zviri mukutanga mamiriro, deionized mvura yakanyorova state, alkaline sweat yakanyoroveswa mumhepo l6 kukurumidza kunyorova uye Kana yanyorova % chengetedzwa pamusoro pe4.0, uye chimiro chemavara chemuenzaniso chakagadzikana uye hachizoperi nekuda kwekukweshana kwepasi. Mhedzisiro yebvunzo yeball plate abrasion inoratidza kuti mushure me1800-1900 nguva dzekupfeka, sampu yematehwe ine maburi akakuvadzwa gumi, ayo akasiyana zvakanyanya nekupfeka kwePU microfiber yeganda uye PVC synthetic leather samples (zvese hazvina maburi akakuvadzwa mushure me10 nguva dzekupfeka). Chikonzero chemakomba akakuvadzwa ndechokuti ganda rezviyo rinokuvadzwa mushure mekupfeka, uye kupikisa kwayo kupfeka kwakasiyana zvakasiyana nemakemikari ekugadzira zvinhu. Naizvozvo, iyo isina kusimba yekupfeka yeganda inodawo kuti vashandisi vatarise kuchengetedza panguva yekushandiswa.
| Tafura 4 Miedzo mibairo yekupfeka kuramba kwedehwe rechokwadi, PU microfiber dehwe uye PVC synthetic dehwe. | |||||
| Samples | Kutsanya kwemavara kune kukweshana | Kupfeka ndiro yebhora | |||
| Mamiriro ekutanga | Deionized mvura yakanyoroveswa mamiriro | Alkaline dikita rakanyorova | 96% ethanol yakanyoroveswa mamiriro | Mamiriro ekutanga | |
| (2000 nguva kupokana) | (500 times friction) | (100 times friction) | (5 times friction) | ||
| Dehwe rechokwadi 1# | 5.0 | 4.5 | 5.0 | 5.0 | Inenge 1900 ka11 yakakuvara maburi |
| Dehwe rechokwadi 2# | 5.0 | 5.0 | 5.0 | 4.5 | Inenge 1800 nguva 9 yakakuvara maburi |
| PU microfiber dehwe 1# | 5.0 | 5.0 | 5.0 | 4.5 | 19 000 nguva Hapana nzvimbo yakakuvadzwa maburi |
| PU microfiber dehwe 2# | 5.0 | 5.0 | 5.0 | 4.5 | 19 000 nguva pasina maburi ekukuvadzwa kwepamusoro |
| PVC yakagadzirwa nematehwe 1# | 5.0 | 4.5 | 5.0 | 5.0 | 19 000 nguva pasina maburi ekukuvadzwa kwepamusoro |
| PVC yakagadzirwa nematehwe 2# | 5.0 | 5.0 | 5.0 | 4.5 | 19 000 nguva pasina maburi ekukuvadzwa kwepamusoro |
| Yechokwadi yedehwe mwero zvinodiwa | ≥4.5 | ≥4.5 | ≥4.5 | ≥4.0 | 1500 nguva dzekupfeka uye kubvarura Hapana kupfuura 4 maburi ekukuvadza |
| Synthetic dehwe chiyero zvinodiwa | ≥4.5 | ≥4.5 | ≥4.5 | ≥4.0 | 19000 nguva dzekupfeka uye kubvarura Hapana anopfuura mana ekukuvadza maburi |
Kazhinji, dehwe rechokwadi, PU microfiber yematehwe uye PVC synthetic leather samples zvese zvine kunaka kukweshana kweruvara kumhanyisa, uye PU microfiber yematehwe uye PVC yeganda rekugadzira zvine kusakara kuri nani uye kubvarura pane ganda rechokwadi, rinogona kudzivirira kusakara uye kubvaruka.
Zvimwe zvinhu zvinhu
Mhedzisiro yemhedzisiro yekupenya kwemvura, yakachinjika murazvo retadancy, dimensional shrinkage uye kunhuhwirira kwedehwe rechokwadi, PU microfiber dehwe uye PVC synthetic dehwe samples inoratidzwa muTafura 5.
| Tafura 5 Miedzo yezvimwe zvinhu zveganda rechokwadi, PU microfiber dehwe uye PVC synthetic dehwe. | ||||
| Muenzaniso | Kupinda kwemvura/(mg/10cm² · 24h) | Horizontal flame retadancy/(mm/min) | Dimensional shrinkage/%(120℃/168 h) | Kunhuwa mwero |
| Dehwe rechokwadi 1# | 3.0 | Zvisingabatike | 3.4 | 3.7 |
| Dehwe rechokwadi 2# | 3.1 | Zvisingabatike | 2.6 | 3.7 |
| PU microfiber dehwe 1# | 1.5 | Zvisingabatike | 0.3 | 3.7 |
| PU microfiber dehwe 2# | 1.7 | Zvisingabatike | 0.5 | 3.7 |
| PVC yakagadzirwa nematehwe 1# | Not tested | Zvisingabatike | 0.2 | 3.7 |
| PVC yakagadzirwa nematehwe 2# | Not tested | Zvisingabatike | 0.4 | 3.7 |
| Yechokwadi yedehwe mwero zvinodiwa | ≥1.0 | ≤100 | ≤5 | ≤3.7 (kutsauka kunogamuchirwa) |
| PU microfiber yematehwe chiyero zvinodiwa | Hapana chinodiwa | ≤100 | ≤2 | ≤3.7 (kutsauka kunogamuchirwa) |
| PVC synthetic dehwe chiyero zvinodiwa | Hapana chinodiwa | ≤100 | Hapana chinodiwa | ≤3.7 (kutsauka kunogamuchirwa) |
Misiyano mikuru mu data rebvunzo ndeyekupenya kwemvura uye dimensional shrinkage. Kupinda kwemvura kwedehwe kunosvika zvakapetwa kaviri kwePU microfiber yedehwe, nepo PVC yeganda rekugadzira rinenge risina mvura. Izvi zvinodaro nekuti matatu-dimensional network skeleton (isina-yakarukwa jira) muPU microfiber yedehwe yakafanana neyakasikwa bundle collagen fiber chimiro chematehwe, ese ane microporous zvimiro, zvichiita kuti ese ari maviri ave nekumwe kupinza kwemvura. Uyezve, iyo mhiri-chikamu nzvimbo ye collagen fibers mumatehwe yakakura uye yakawanda yakagovaniswa, uye chikamu che microporous nzvimbo yakakura kupfuura iyo yePU microfiber yematehwe, saka dehwe rine yakanakisa kupenya kwemvura. Panyaya yekuderera kwedimensional, mushure mekuchembera kwekupisa (120 ℃/1 Kudzikira kwePU microfiber yeganda uye PVC synthetic matehwe samples mushure mekuchembera kwekupisa (68h) akafanana uye akadzikira zvakanyanya kupfuura edehwe rechokwadi, uye kugadzikana kwavo kuri nani pane iyo yekuwedzera kweyechokwadi nhanho yeganda uye mhedzisiro yeganda. ratidza kuti dehwe rechokwadi, PU microfiber dehwe uye PVC synthetic matehwe samples anogona kusvika pamatanho akafanana, uye anogona kusangana nezvinodiwa zvemukati zvinodiwa maererano nekunonoka kwemoto uye kunhuwa kuita.
Kazhinji, iyo mhute yemvura permeability yedehwe rechokwadi, PU microfiber dehwe uye PVC synthetic matehwe samples inodzikira. The shrinkage rates (dimensional kugadzikana) yePU microfiber yeganda uye PVC yakagadzirwa nematehwe mushure mekupisa kuchembera zvakafanana uye zviri nani pane chaiyo dehwe, uye yakachinjika murazvo retadancy iri nani pane yedehwe chairo. Iyo ignition uye hwema zvimiro zvakafanana.
Mhedziso
Iyo muchinjika-chikamu chimiro chePU microfiber dehwe yakafanana neyechisikigo dehwe. Iyo PU layer uye iyo base chikamu chePU microfiber yedehwe inoenderana neiyo yezviyo layer uye iyo fiber tissue chikamu chekupedzisira. Izvo zvimiro zvedense layer, foaming layer, adhesive layer uye base jira rePU microfiber dehwe uye PVC synthetic dehwe zviri pachena kuti zvakasiyana.
Kubatsira kwechisikigo kwematehwe echisikigo ndechekuti ine yakanaka mechanical zvivakwa (tensile simba ≥15MPa, elongation pakuzorora> 50%) uye mvura permeability. Mukana wezvinhu zvePVC synthetic dehwe ndeyekupfeka kuramba (hapana kukuvadzwa mushure me19,000 nguva dzekupfeka bhora bhodhi), uye inopesana nemamiriro akasiyana ezvakatipoteredza. Zvikamu zvine kusimba kwakanaka (kusanganisira kuramba hunyoro uye kupisa, tembiricha yakakwira, tembiricha yakaderera, uye mamiriro ekunze anochinja) uye yakanaka dimensional kugadzikana (dimensional shrinkage <5% pasi pe120℃/168h). PU microfiber dehwe rine zvakanakira zvinhu zvese zviri zviviri ganda rechokwadi uye PVC yekugadzira dehwe. Mhedzisiro yemhedzisiro yezvivakwa zvemuchina, kuita kupeta, kupfeka kuramba, kuchinjika murazvo wemoto, kugadzikana kwedimensional, kunhuhwirira, nezvimwe zvinogona kusvika padanho repamusoro reganda rechokwadi reganda uye PVC yeganda rekugadzira, uye panguva imwe chete uine kumwe kupenya kwemvura. Naizvozvo, PU microfiber dehwe rinogona kuzadzisa zvirinani zvinodiwa zvekushandisa zvezvigaro zvemotokari uye ine tarisiro yakakura yekushandisa.
Nguva yekutumira: Nov-19-2024
