有機玻(bo)璃(亞克力)板(ban)材的(de)種類
亞克力板(ban)(ban)(ban)材的規格種類(lei)很多(duo)。普通板(ban)(ban)(ban)有:透明板(ban)(ban)(ban),染(ran)色透明板(ban)(ban)(ban),乳白板(ban)(ban)(ban),彩色板(ban)(ban)(ban);特種板(ban)(ban)(ban)有:衛浴板(ban)(ban)(ban),云(yun)彩板(ban)(ban)(ban),鏡面板(ban)(ban)(ban),夾布(bu)板(ban)(ban)(ban),中空板(ban)(ban)(ban),抗沖板(ban)(ban)(ban), 阻燃板(ban),超耐磨(mo)板(ban),表面花紋板(ban),磨(mo)砂板(ban),珠光板(ban),金屬效果板(ban)等。不(bu)(bu)同的性能,不(bu)(bu)同的色彩及視(shi)覺(jue)效果以(yi)滿足千變(bian)萬化的要求。
1、亞克力板(ban)(ban)按(an)生產工藝(yi)分澆鑄(zhu)板(ban)(ban)和擠壓板(ban)(ban),按(an)透(tou)光度(du)可分為透(tou)明板(ban)(ban)、半透(tou)明板(ban)(ban)(包括(kuo)染色板(ban)(ban)透(tou)明板(ban)(ban))、色板(ban)(ban)(包括(kuo)黑白及(ji)彩色板(ban)(ban));按(an)性能分抗沖擊板(ban)(ban)、抗紫外線(xian)板(ban)(ban)、普(pu)通板(ban)(ban)和特殊(shu)板(ban)(ban)如高抗沖板(ban)(ban)、阻燃(ran)板(ban)(ban)、磨砂板(ban)(ban)、金屬效果板(ban)(ban)、高耐磨板(ban)(ban)、導光板(ban)(ban)等。
A:澆鑄板(ban):分子量(liang)高(gao),具有(you)出色(se)(se)的(de)剛度(du)(du)、強度(du)(du)以及優異的(de)抗(kang)化學品性能(neng)。因而比較適合加工(gong)大尺寸的(de)標識牌匾,相對在(zai)軟化過(guo)程中時(shi)間稍長。這(zhe)種板(ban)材的(de)特點是小批量(liang)加工(gong),在(zai)顏色(se)(se)體系和表面紋理效果方面有(you)無法比擬的(de)靈活(huo)性,且產(chan)品規格齊全,實用于各種特殊(shu)用途。
B:擠(ji)(ji)壓板(ban):與(yu)澆鑄板(ban)相比(bi),擠(ji)(ji)壓板(ban)分子量較(jiao)低,機(ji)械性(xing)能稍(shao)弱,柔性(xing)比(bi)較(jiao)高(gao)。然而,這一特點有(you)利于折彎(wan)和熱成(cheng)型加(jia)工,軟化時間較(jiao)短。在處理(li)尺寸較(jiao)大(da)的板(ban)材時,有(you)利于各種快速真空吸塑成(cheng)型。同時,擠(ji)(ji)壓板(ban)的厚度公差(cha)比(bi)澆鑄板(ban)小。由于擠(ji)(ji)壓板(ban)是(shi)大(da)批量自動化生(sheng)產(chan)(chan),顏(yan)色和規格不便(bian)調理(li),所以產(chan)(chan)品規格多(duo)樣性(xing)受到一定的限制。
2、亞克力(li)還有一種叫(jiao)回(hui)料(liao)再生板是采用(yong)回(hui)收(shou)亞克力(li)邊角料(liao),經過熱降解(jie)后得到再生MMA(甲基丙(bing)烯(xi)酸甲酯)單體,再由(you)化(hua)學聚合反應(ying)之后得(de)來。經過嚴格的(de)工藝(yi)流程(cheng),可以重新(xin)得(de)到純凈的(de)MMA單(dan)(dan)體(ti),與新合成單(dan)(dan)體(ti),品質上沒(mei)有(you)任何區(qu)別(bie)。但生產(chan)出來的降解單(dan)(dan)體(ti),純度不(bu)高,板材成型后,其品質、性能很差。
總結:擠壓板(ban)(ban)使(shi)用(yong)顆粒原料,經過(guo)高溫溶解后擠壓成(cheng)型,而澆鑄板(ban)(ban)是(shi)用(yong)MMA單(dan)體(液態)直接澆(jiao)鑄成型(xing),雖然擠(ji)壓(ya)板(ban)外(wai)(wai)形上較(jiao)為(wei)平整光潔,但因其在顆粒原料成型(xing)時(shi)(shi)以完成聚(ju)(ju)合(he)。在加(jia)工成板(ban)材(cai)時(shi)(shi)其結構、性能(neng)(neng)較(jiao)弱,并(bing)不(bu)適合(he)作(zuo)(zuo)為(wei)戶(hu)外(wai)(wai)標識產品的材(cai)料,只適合(he)作(zuo)(zuo)水(shui)晶字或產品支架等戶(hu)內產品。另外(wai)(wai)由于擠(ji)壓(ya)板(ban)多數不(bu)具防紫外(wai)(wai)線(xian)功能(neng)(neng),其戶(hu)外(wai)(wai)使用的壽命(ming)與澆(jiao)鑄板(ban)不(bu)可同(tong)日而語(yu),顏色(se)會(hui)漸褪(tun)并(bing)且很(hen)容(rong)易脆(cui)化,直至(zhi)破裂。澆(jiao)鑄板(ban)是在板(ban)材(cai)加(jia)工過(guo)程中完成結構聚(ju)(ju)合(he),其間加(jia)入紫外(wai)(wai)線(xian)吸收劑,具有極高的強度和UV功能,戶外(wai)使(shi)用壽命長達(da)5年以上甚(shen)至10年,使(shi)用(yong)期間色澤一直亮麗如新。