硫化温度对防污型聚氨酯透声胶性能的影响
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摘要
以环氧丙烷-四氢呋喃共聚醚和甲苯二异氰酸酯(TDI-100)为原材料合成了聚氨酯预聚体,再与防污剂DCOIT、扩链剂MOCA反应制备了防污型聚氨酯透声胶,并讨论了硫化温度对透声胶防污性能、力学性能、声学性能、粘合性能和耐水性能的影响。结果表明,随着硫化温度的升高,透声胶防污性能不断降低;300%定伸应力、拉伸强度和撕裂强度逐渐增大,而拉断伸长率逐渐降低;温度超过100℃后,撕裂强度下降。硫化温度变化对声学性能影响不大。随着硫化温度升高,透声胶片与基材之间的剥离强度、耐水性能也逐渐提高。
Polyurethane prepolymer was synthesized by using tetrahydrofuran-propylene oxide copolyether and 2,4-tolylene diisocyanate(TDI-100)as raw materials,the antifouling polyurethane sound transmission materials were prepared by using polyurethane prepolymer,antifouling agent DCOIT and chain extender MOCA,the effects of curing temperature on antifouling properties,mechanical properties,acoustic properties,adhesive properties and water resistance of the sound transmission materials were discussed.The results showed that the antifouling property of polyurethane sound transmitting materials gradually decreased with the rise of curing temperature,the modulus at 300%,tensile strength and tear strength gradually increased,the elongation at break gradually decreased.The tear strength decreased when the temperature exceeded 100℃.The change of curing temperature has little effect on the acoustic properties.The adhesive properties and water resistance gradually increased with the rise of curing temperature.
Polyurethane prepolymer was synthesized by using tetrahydrofuran-propylene oxide copolyether and 2,4-tolylene diisocyanate(TDI-100)as raw materials,the antifouling polyurethane sound transmission materials were prepared by using polyurethane prepolymer,antifouling agent DCOIT and chain extender MOCA,the effects of curing temperature on antifouling properties,mechanical properties,acoustic properties,adhesive properties and water resistance of the sound transmission materials were discussed.The results showed that the antifouling property of polyurethane sound transmitting materials gradually decreased with the rise of curing temperature,the modulus at 300%,tensile strength and tear strength gradually increased,the elongation at break gradually decreased.The tear strength decreased when the temperature exceeded 100℃.The change of curing temperature has little effect on the acoustic properties.The adhesive properties and water resistance gradually increased with the rise of curing temperature.
引文
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[3]Konstantinou I K,Albanis T A.Worldwide occurrence and effects of antifouling paint booster biocides in the aquatic environment:a review[J].Environmenr International,2004,30:235-248.
[4]王俊莲,王凤奇,于杰.我国部分海域贝类动物内脏重金属生物存储受海洋船舶防污涂料影响的调查分析[J].科学通报,2008,53(8):900-903.
[5]山西省化工研究所.聚氨酯弹性体手册[M].北京:化学工业出版社,2001.203.
[6]郝亚暾.共聚醚/TDI室温固化体系力学性能的研究[J].弹性体,2017,27(2):27-30.
[7]洛桂娥.THF-PO共聚醚型聚氨酯弹性体性能的研究[J].聚氨酯工业,2006,21(1):12-15.
[8]郭秀鹏,刘凉冰,刘红梅.室温固化四氢呋喃-环氧丙烷共聚醚聚氨酯灌封胶的制备[A].中国聚氨酯工业协会第十六次年会论文集[C].2012,466-469.
[9]贺鹏.聚脲透声材料的制备及性能[J].中国涂料2015,30(8):57-60.
[10]张景亮.聚氨酯-脲-水声换能器及水听器用新型透声密封材料[J].橡塑资源利用,2011,(1):26-29.
[11]张欣钊,申英俊,赵国满.聚氨酯弹性体在水声透声材料中的应用[J].橡塑资源利用,2008,(1):30-32.
[12]刘凉冰.影响聚氨酯弹性体撕裂强度的因素[J].化学推进剂与高分子材料,2016,14(1):16-22.
[13]郝亚暾,刘凉冰,刘红梅.扩链剂TX-2对共聚醚/TDI体系聚氨酯弹性体力学性能的影响[A].中国聚氨酯工业协会弹性体专业委员会2013年会论文集[C],2013,188-193.
[14]刘凉冰.聚氨酯弹性体结构与撕裂强度性能的关系[A].中国聚氨酯工业协会第十六次年会论文集[C].2012,337-346.
[15]刘凉冰,刘红梅,贾林才.聚氨酯弹性体与金属粘接的研究[J].粘结,2007,28(3):24-25.
[16]刘建铭.浇注型聚氨酯橡胶与钢板粘合工艺的试验研究[J].云南化工,2001,28(1):38-41.
[17]欧方明.低透水率聚氨酯材料研究进展[J].声学与电子工程,2014,(4):37-39.
[18]王铭琦.浇注型低透水聚氨酯密封材料的研制[J].化学工程师,2004,12:14-15.
[19]鹿桂芳.低透水聚氨酯灌注密封胶[J].化学工程师,2001,(1):20-21.