包装学报
包裝學報
포장학보
PACKAGING JOURNAL
2012年
2期
13-17
,共5页
液体农药%软包装%包装材料%胶黏剂%废弃物
液體農藥%軟包裝%包裝材料%膠黏劑%廢棄物
액체농약%연포장%포장재료%효점제%폐기물
liquid pesticide%flexible package material%package material%adhesive%waste
液体农药因含有毒性较大且腐蚀性较强的甲苯、二甲苯等有机溶剂,其软包装材料应具备较强的耐腐蚀性能和阻隔性能。目前国内市场上液体农药软包装常用的材料主要有PET/Al/CPP(或PE)复合膜、PET/VMPET/CPP(或PE)复合膜、含PA或EVOH的PP,PE多层共挤膜、PET/PVDC(或EVOH)/CPP(或PE)透明复合膜等,常用的胶黏剂为聚氨酯胶黏剂。液体农药包装废弃物的处理一般采取随意丢弃和集中填埋焚烧2种方式,均对环境及人类健康危害较大,必须采取相应的措施以降低其危害。液体农药软包装必须朝绿色环保方向发展,研发并推广可降解材料与水溶性膜。
液體農藥因含有毒性較大且腐蝕性較彊的甲苯、二甲苯等有機溶劑,其軟包裝材料應具備較彊的耐腐蝕性能和阻隔性能。目前國內市場上液體農藥軟包裝常用的材料主要有PET/Al/CPP(或PE)複閤膜、PET/VMPET/CPP(或PE)複閤膜、含PA或EVOH的PP,PE多層共擠膜、PET/PVDC(或EVOH)/CPP(或PE)透明複閤膜等,常用的膠黏劑為聚氨酯膠黏劑。液體農藥包裝廢棄物的處理一般採取隨意丟棄和集中填埋焚燒2種方式,均對環境及人類健康危害較大,必鬚採取相應的措施以降低其危害。液體農藥軟包裝必鬚朝綠色環保方嚮髮展,研髮併推廣可降解材料與水溶性膜。
액체농약인함유독성교대차부식성교강적갑분、이갑분등유궤용제,기연포장재료응구비교강적내부식성능화조격성능。목전국내시장상액체농약연포장상용적재료주요유PET/Al/CPP(혹PE)복합막、PET/VMPET/CPP(혹PE)복합막、함PA혹EVOH적PP,PE다층공제막、PET/PVDC(혹EVOH)/CPP(혹PE)투명복합막등,상용적효점제위취안지효점제。액체농약포장폐기물적처리일반채취수의주기화집중전매분소2충방식,균대배경급인류건강위해교대,필수채취상응적조시이강저기위해。액체농약연포장필수조록색배보방향발전,연발병추엄가강해재료여수용성막。
There exist high toxic and strong corrosive organic solvents such as methylbenzene and dimethylbenzene in liquid pesticide,therefore materials used in packaging pesticide should have strong anti-corrosive and high barrier property.At present,common flexible materials in domestic market mainly include PET/Al/CPP(or PE),PET/VMPET/CPP(or PE) dry laminated films,PP or PE coextrusion film including PA or EVOH and PET/PVDC(or EVOH) /CPP(or PE) transparent film.Meanwhile polyurethane adhesive is often used.Discarding and dumping in landfills and burning are two main ways for waste disposal,which are detrimental to environment and physical health and some appropriate measures should be taken.In future,researching and developing degradable materials and water soluble film is a green and environmental-friendly way to liquid pesticide packaging.