巢湖学院学报
巢湖學院學報
소호학원학보
CHAOHU TEACHERS COLLEGE JOURNAL
2013年
6期
39-43,47
,共6页
高强高模%PVA纤维%原液可纺性%醋酸根%喷丝头
高彊高模%PVA纖維%原液可紡性%醋痠根%噴絲頭
고강고모%PVA섬유%원액가방성%작산근%분사두
high strength and high modulus%PVA fiber%primary solution spinnability%acetate%spinneret
影响高强高模聚乙烯醇（PVA）纤维原液可纺性的关键因素有PVA的醋酸根含量及聚合度；纺丝原液中的PVA浓度及溶解程度、添加剂及硼酸加入量，纺丝过程中喷丝头的电位及电化学腐蚀；凝固浴中钙镁离子含量等。本文在多年生产过程中研究了上述控制参数对原液可纺性的影响，并提出了防范措施。比如在PVA中残存醋酸根含量≤0.05豫、聚合度1850依50、PVA浓度15.8豫时可纺性较好，同时也对PVA的浸泡时间、浸泡温度、纺丝过程中喷丝头的处理等提出了指导建议。没有发现聚乙烯醇的其它指标与高强高模PVA纤维原液的可纺性有直接的关系。
影響高彊高模聚乙烯醇（PVA）纖維原液可紡性的關鍵因素有PVA的醋痠根含量及聚閤度；紡絲原液中的PVA濃度及溶解程度、添加劑及硼痠加入量，紡絲過程中噴絲頭的電位及電化學腐蝕；凝固浴中鈣鎂離子含量等。本文在多年生產過程中研究瞭上述控製參數對原液可紡性的影響，併提齣瞭防範措施。比如在PVA中殘存醋痠根含量≤0.05豫、聚閤度1850依50、PVA濃度15.8豫時可紡性較好，同時也對PVA的浸泡時間、浸泡溫度、紡絲過程中噴絲頭的處理等提齣瞭指導建議。沒有髮現聚乙烯醇的其它指標與高彊高模PVA纖維原液的可紡性有直接的關繫。
영향고강고모취을희순（PVA）섬유원액가방성적관건인소유PVA적작산근함량급취합도；방사원액중적PVA농도급용해정도、첨가제급붕산가입량，방사과정중분사두적전위급전화학부식；응고욕중개미리자함량등。본문재다년생산과정중연구료상술공제삼수대원액가방성적영향，병제출료방범조시。비여재PVA중잔존작산근함량≤0.05예、취합도1850의50、PVA농도15.8예시가방성교호，동시야대PVA적침포시간、침포온도、방사과정중분사두적처리등제출료지도건의。몰유발현취을희순적기타지표여고강고모PVA섬유원액적가방성유직접적관계。
The key factors influencing spinnability of high strength and high modulus polyvinyl alcohol(PVA) fiber solution are discussed, which include the acetic acid content in PVA and the polymerization degree of PVA, the PVA content and the PVA solubility, additives and the adding amount of boric acid of the primary solution, the potential and electrochemical corrosion of spinneret in the spinning process, the content of calcium and magnesium ions in solidification bath. The effect of the above control parameters on the dope spinnability are studied and the precautionary measures, such as PVA residual acetic acid content(≤0.05%) polymerization degree(1850± 50), PVA concentration (about 15.8%), are proposed. In addition, the soak time of PVA and soaking temperature and the taking corresponding measures of spinning spinneret are put forward. It is not found that the other index of PVA has direct relationship with the PVA fiber solution with high strength and high modulus.
