Abstract : iron - based alloy aluminum liquid maceration experiment is done . transmission ele ctron microscope ( tem ) and energy dispersive spectrometer ( eds ) are employed to in vestigate the characteristics of microstructure and the distrbution of compone nts . based on fe - al alloy phase diagram and the experiment results , a model is propo sed for iron - based alloy aluminum erosion 文摘:進(jìn)行了鐵基合金鋁液浸蝕實(shí)驗(yàn),利用透射電鏡和能譜儀對腐蝕試樣進(jìn)行微觀組織觀察和成分分析,結(jié)合鐵鋁相圖和實(shí)驗(yàn)結(jié)果.論述了鐵基合金鋁液腐蝕過程
An acellular dermal matrix was prepared from allogenic skin by removing epidermis with a hyperosmotic salt solution and cross - linking with glutaralaldehyde , then clear away acellular components in dermis with naoh - maceration . the light and sme observation of the acellular dermal matrix revealed that the epidermis and cellular component in dermis were eliminated 本研究共分四部分:第一部分無細(xì)胞真皮基質(zhì)的制備用高滲鹽除去異體皮膚的表皮細(xì)胞,經(jīng)戊二醛交聯(lián)后以低濃度naoh消蝕以除去真皮中的所有細(xì)胞成分,得到無細(xì)胞真皮基質(zhì)。
Used for producing polyester resin , polyimide resin , water soluble , alkyd resin , water soluble polyurethane resin , plasticizer , water soluble amino - alkyd resin , curing agent for epoxy resin , aeroengine oil , electric capacitor maceration oil , binder , sizing agent , smoke suppressor , instant binder , etc . :用于制造聚酯樹脂及聚酰亞胺樹脂水溶性聚脂樹脂水溶性聚氨酯樹脂增塑劑和水溶性氨基醇酸樹脂環(huán)氧樹脂固化劑以及高級航空潤滑油電力電溶器浸漬油粒料粘結(jié)劑施膠劑消煙劑瞬時(shí)粘結(jié)劑等
The treatment of extensive deep burn wound is mainly by transplantation of razor - thin graft or split - thickness skin autograft in clinic . but the lack of dermis makes the wound heal with scarring and contraction . we can prepare a new kind of acellular dermal matrix ( adm ) by the method of naoh - maceration . first the acellular dermal matrix became vascularized within 3 weeks after implantation into full thickness skin defects in sd rats , then auto - split - thickness skin was overlaid on it . by animal experiments , we observed that the new kind of composite skin can reduce scarring and contraction of transplantation of razor - thin or split - thickness skin autograft 目前在臨床上治療大面積深度燒傷的方法是移植刃厚或斷層自體皮,但因缺乏足夠的真皮成分,常造成疤痕和攣縮,本實(shí)驗(yàn)用naoh消蝕法研制出一種新的真皮基質(zhì)( adm ) ,先將其移植于全厚皮膚缺損的大鼠背部創(chuàng)面,外覆蓋輻照豬皮保護(hù)3周,使其血管化,再在其上移植斷層自體皮,經(jīng)動(dòng)物實(shí)驗(yàn)我們觀察到這種新型復(fù)合皮膚,可以減少單純移植刃厚或斷層自體皮造成疤痕和攣縮。