木粉填充聚丙烯的生產工藝介紹
木粉(fen)填充聚(ju)丙烯的生產(chan)工藝介紹
木粉來自范圍比較廣(guang),產品(pin)性能優良(liang)。因此,利用木粉(fen)填充(chong)聚丙烯成為近年來研(yan)究(jiu)的熱點。木粉(fen)廠在這(zhe)方面也做了(le)很多(duo)努力(li)。小(xiao)編今(jin)天就給大家簡單介紹一下(xia)木粉(fen)填充(chong)聚丙烯的生產工藝。
木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)廠(chang)(chang)可以(yi)在(zai)木(mu)(mu)(mu)(mu)(mu)(mu)材(cai)加(jia)(jia)(jia)工(gong)中使用(yong)木(mu)(mu)(mu)(mu)(mu)(mu)屑、鋸末和廢棄的(de)(de)(de)木(mu)(mu)(mu)(mu)(mu)(mu)屑。用(yong)低值芯材(cai)壓碎后(hou)可用(yong)于聚(ju)丙(bing)烯(xi)填料。木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)的(de)(de)(de)粒(li)度(du)要(yao)求小于10微(wei)米。上述物質的(de)(de)(de)化學成分不(bu)同(tong),通常以(yi)纖維素(su)、半(ban)纖維素(su)和木(mu)(mu)(mu)(mu)(mu)(mu)質素(su)為主。因(yin)此,木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)廠(chang)(chang)應在(zai)加(jia)(jia)(jia)工(gong)時進行分類加(jia)(jia)(jia)工(gong)。木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)在(zai)木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)廠(chang)(chang)加(jia)(jia)(jia)工(gong)后(hou),木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)應充分加(jia)(jia)(jia)熱,以(yi)除去(qu)揮發性物質,提高(gao)木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)的(de)(de)(de)熱穩(wen)定(ding)性。填好后(hou)可以(yi)穩(wen)定(ding)。經過上述干燥處理后(hou),木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)廠(chang)(chang)還對木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)進行篩分,根據(ju)木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)的(de)(de)(de)加(jia)(jia)(jia)工(gong)條件,主要(yao)選用(yong)40目(mu)左右的(de)(de)(de)篩子(zi)。木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)加(jia)(jia)(jia)工(gong)后(hou),在(zai)20升的(de)(de)(de)高(gao)速捏合機中加(jia)(jia)(jia)入(ru)3公斤木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen),加(jia)(jia)(jia)入(ru)雙(shuang)(shuang)(shuang)硬(ying)脂(zhi)酸(suan)甘油酯,溫度(du)保持(chi)在(zai)70攝氏度(du)至80攝氏度(du),以(yi)1760轉/分攪拌(ban)。4分鐘后(hou),以(yi)875轉/分攪拌(ban)2分鐘,直到木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)冷卻(que),得到浸漬(zi)雙(shuang)(shuang)(shuang)硬(ying)脂(zhi)酸(suan)鹽的(de)(de)(de)木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)。制備了幾批不(bu)同(tong)雙(shuang)(shuang)(shuang)硬(ying)脂(zhi)酸(suan)含量的(de)(de)(de)木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen),然后(hou)將浸漬(zi)木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)與(yu)聚(ju)丙(bing)烯(xi)混合,除去(qu)浸漬(zi)劑后(hou)純木(mu)(mu)(mu)(mu)(mu)(mu)粉(fen)與(yu)雙(shuang)(shuang)(shuang)硬(ying)脂(zhi)酸(suan)甘油酯的(de)(de)(de)比(bi)例為36.4:60。組后(hou)進行造粒(li)成型(xing)。
經過以(yi)上介紹,大家應該(gai)有所了(le)解,這道工序的關鍵是(shi)木粉(fen)廠開始加工木粉(fen),隨后的灌(guan)裝工序相(xiang)對就簡單了(le)。