镁铝水滑石复配三聚氰胺磷酸盐制备阻燃中密度纤维板的工艺
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摘要
采用无机镁铝水滑石和三聚氰胺磷酸盐以1:1质量比复配的阻燃剂,以及异氰酸酯MDI胶制备中纤板(MDF),探讨施胶量、热压温度和热压时间对MDF力学性能的影响。结果表明:各因子对MOE、MOR和IB影响顺序为:MDI施胶量>热压温度>热压时间;确定较优工艺参数为:热压温度160℃,热压时间6 min,MDI施胶量10%。在此条件下,阻燃MDF的MOE、MOR与IB均达到GB/T11718-2009潮湿状态下使用的家具型产品的要求,氧指数为30.3%。
In order to improve both fire retardant and mechanical properties of medium density fiberboard(MDF), the authors prepared a flame retardant composed of magnesium-aluminum layered double hydroxide(MgAl-LDH) and melamine pyrophosphate(MP) having a mass ratio of 1 : 1, and selected MDI resin as the adhesive.The results showed that MOE, MOR and IB were influenced as MDI resin consumption, hot-pressing temperature and hot-pressing time changed. The optimal manufacturing parameters were 160 ℃hot-pressing temperature, 6 minute hot-pressing time and 10% MDI resin consumption. Under these conditions, all the MOE, MOR and IB of the flame-retardant MDF samples met the specifications for furniture grade MDF used in humid conditions according to the National Standard GB/T 11718-2009. The limiting oxygen index(LOI) was 30.3%.
In order to improve both fire retardant and mechanical properties of medium density fiberboard(MDF), the authors prepared a flame retardant composed of magnesium-aluminum layered double hydroxide(MgAl-LDH) and melamine pyrophosphate(MP) having a mass ratio of 1 : 1, and selected MDI resin as the adhesive.The results showed that MOE, MOR and IB were influenced as MDI resin consumption, hot-pressing temperature and hot-pressing time changed. The optimal manufacturing parameters were 160 ℃hot-pressing temperature, 6 minute hot-pressing time and 10% MDI resin consumption. Under these conditions, all the MOE, MOR and IB of the flame-retardant MDF samples met the specifications for furniture grade MDF used in humid conditions according to the National Standard GB/T 11718-2009. The limiting oxygen index(LOI) was 30.3%.
引文
[1]纪磊,陈志林,傅峰.磷酸三聚氰胺阻燃中密度纤维板燃烧性能[J].消防科学与技术,2010,29(4):279-281.
[2]黄精明,詹满军,唐荣燕,全霞芳,龙慈明.磷-氮-硼复合阻燃剂在中密度纤维板中的应用[J].林产工业,2013(5):46-48.
[3]郝畅,郭垂根.复配阻燃剂对木材阻燃与力学性能的影响[J].消防科学与技术,2016,35(5):663-667.
[4]王琮琮,钱俊,林鹏,胡天怡,徐文.磷酸氢二铵复配硼酸锌处理麦秸秆纤维板的阻燃性能[J].林产工业,2016,43(11):50-52.
[5]夏燎原,胡云楚,吴义强,袁利萍,姚春花.层状磷酸锆/聚磷酸铵复合阻燃剂对木材的阻燃抑烟性能研究[J].中南林业科技大学学报,2012,32(1):32-36.
[6]张丽芳,梁善庆,张龙飞,陈志林.无机镁铝水滑石制备阻燃MDF的性能分析[J].木材工业,2016,30(6):9-13.
[7]顾忠基,姜彬,朱萍,孙香,连海兰.Mg/Al-LDHs纳米阻燃剂的制备及其在饰面人造板中的应用[J].林业工程学报,2016,1(4):39-44.
[8]Liang S,Zhang L,Chen Z,Fu F.Flame retardant efficiency of melamine pyrophosphate with added Mg-Al-layered double hydroxide in medium density fiberboards[J].BioResources,2017,12(1):533-545.
[2]黄精明,詹满军,唐荣燕,全霞芳,龙慈明.磷-氮-硼复合阻燃剂在中密度纤维板中的应用[J].林产工业,2013(5):46-48.
[3]郝畅,郭垂根.复配阻燃剂对木材阻燃与力学性能的影响[J].消防科学与技术,2016,35(5):663-667.
[4]王琮琮,钱俊,林鹏,胡天怡,徐文.磷酸氢二铵复配硼酸锌处理麦秸秆纤维板的阻燃性能[J].林产工业,2016,43(11):50-52.
[5]夏燎原,胡云楚,吴义强,袁利萍,姚春花.层状磷酸锆/聚磷酸铵复合阻燃剂对木材的阻燃抑烟性能研究[J].中南林业科技大学学报,2012,32(1):32-36.
[6]张丽芳,梁善庆,张龙飞,陈志林.无机镁铝水滑石制备阻燃MDF的性能分析[J].木材工业,2016,30(6):9-13.
[7]顾忠基,姜彬,朱萍,孙香,连海兰.Mg/Al-LDHs纳米阻燃剂的制备及其在饰面人造板中的应用[J].林业工程学报,2016,1(4):39-44.
[8]Liang S,Zhang L,Chen Z,Fu F.Flame retardant efficiency of melamine pyrophosphate with added Mg-Al-layered double hydroxide in medium density fiberboards[J].BioResources,2017,12(1):533-545.