CN108676232A - 一种发泡保温珍珠棉 - Google Patents
一种发泡保温珍珠棉 Download PDFInfo
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Abstract
本发明公开了一种发泡保温珍珠棉,属于建筑材料技术领域。本发明按重量份数计,将60~80份高密度聚乙烯,10~20份改性酚醛树脂,5~8份聚丙烯酸锌树脂,5~8份碳酸氢钠,8~10份发泡剂,8~10份交联剂,5~8份硅烷偶联剂,10~20份预处理玉米芯粉,10~20份聚二甲基硅氧烷,5~8份片状锌粉,5~8份磷脂置于混练机中,于温度为100~120℃条件下,混炼40~60min后,得混炼料,再将混炼料挤出成型,得成型坯料,随后将成型坯料置于烘箱中,于温度为150~180℃条件下,加热处理40~60min,即得发泡保温珍珠棉。本发明提供的发泡保温珍珠棉具有优异的阻燃性能和保温性能。
Description
技术领域
本发明公开了一种发泡保温珍珠棉,属于建筑材料技术领域。
背景技术
珍珠棉又称EPE,为非交联闭孔结构,是一种新型环保的包装材料。它由低密度聚乙烯脂经物理发泡产生无数的独立气泡构成。克服了普通发泡胶易碎、变形、恢复性差的缺点。具有隔水防潮、防震、隔音保可塑性能佳、韧性强、循环再造、环保、抗撞力强等诸多优点,亦具有很好的抗化学性能。是传统包装材料的理想替代品。
珍珠棉广泛应用于电子电器、仪器仪表、电脑、音响、医疗器械、工控机箱、五金灯饰、工艺品、玻璃、陶瓷、家电、喷涂、家俱家私、酒类及树脂等高档易碎礼品包装、五金制品、玩具、瓜果、皮鞋的内包装、日用品等多种产品的包装。加入彩色防静电剂和阻燃剂后,有效杜绝静电和着燃。
EPE和各种织物的粘合制品是各种车辆和居室的良好内装修材料。EPE珍珠棉和铝箔或镀铝薄膜的复合制品具有优异的反红外线紫外线能力,是一些化工设备冷藏库和野营器材汽车遮阳的必用用品。其管材大量用于空调、童车、儿童玩具、家私,水暖通气等行业。
由于具有特种优点,不但不污染环境,而且可反覆回收利用,因此EPE珍珠棉发泡材料是一种新型、朝阳永不衰退的材料。随着时间的推进和产品不断开发应用,EPE珍珠棉发泡材料将在包装及填充用料方面得到更广泛地应用。
珍珠棉是高发泡成形产品,重量轻,有一定坚固性柔软性和缓冲性很好,导热率很低隔热性很优。独立气泡的泡沫材,是几乎没有吸水性的防水材。高发泡及优秀防水性,使其具有很强浮力效果。不受各种药品腐蚀性耐腐性材料。不受各种气候条件影响,耐气候性优越,独立气泡的泡沫材有很好的防音防振效果。但是目前传统的发泡珍珠棉还存在阻燃性能和保温性能不佳的问题,因此还需对其进行研究。
发明内容
本发明主要解决的技术问题是:针对传统发泡珍珠棉阻燃性能和保温性能不佳的问题,提供了一种发泡保温珍珠棉。
为了解决上述技术问题,本发明所采用的技术方案是:
一种发泡保温珍珠棉,是由以下重量份数的原料组成:60~80份高密度聚乙烯,10~20份改性酚醛树脂,5~8份聚丙烯酸锌树脂,5~8份碳酸氢钠,8~10份发泡剂,8~10份交联剂,5~8份硅烷偶联剂,10~20份预处理玉米芯粉,10~20份聚二甲基硅氧烷,5~8份片状锌粉,5~8份磷脂;
所述发泡保温珍珠棉的制备步骤为:
(1)按原料组成称量各组分原料;
(2)将高密度聚乙烯,改性酚醛树脂,聚丙烯酸锌树脂,碳酸氢钠,发泡剂,交联剂,硅烷偶联剂,预处理玉米芯粉,聚二甲基硅氧烷,片状锌粉和磷脂混炼,挤出成型,加热,即得发泡保温珍珠棉。
所述改性酚醛树脂的制备过程为:按重量份数计,将30~40份乙二醛溶液,10~20份氢氧化钠溶液,30~40份对苯二酚恒温搅拌反应,降温,加入乙二醛溶液体积0.2~0.3倍的乙烯脲搅拌反应,降温,加入乙二醛溶液体积0.1~0.2倍的硅烷偶联剂KH-570搅拌反应,降温,即得碱性酚醛树脂。
所述发泡剂为偶氮二甲酰胺,二亚硝基五亚甲基四胺或4,4'-氧代双苯磺酰肼中的任意一种。
所述交联剂为预处理玉米芯粉的制备过程为:将玉米芯干燥,粉碎,过100目的筛,得玉米芯粉,按重量份数计,将10~20份玉米芯粉,20~30份蔗糖,10~20份亚麻油混合,随后充入高压二氧化碳,冷却,得预处理玉米芯粉。
所述硅烷偶联剂为硅烷偶联剂KH-550或硅烷偶联剂KH-560中的任意一种。
所述磷脂为牛奶磷脂,大豆磷脂或蛋黄磷脂中的任意一种。
本发明的有益效果是:
(1)本发明通过添加预处理玉米芯粉,在制备过程中,玉米芯粉通过与蔗糖、亚麻油混合,再经高温和高压二氧化碳处理,使得二氧化碳能够渗透到玉米芯粉中,随后经过冷冻,使得高压二氧化碳保存在玉米芯粉中,在使用过程中,碳酸氢钠受热分解,生成水,玉米芯粉中的蔗糖溶解在水中,同时释放出二氧化碳,一方面,二氧化碳的扩散,使得玉米芯粉体积增大,孔隙增多,另一方面,二氧化碳的释放可协助体系发泡,进一步提升体系的孔隙率,同时,气体的扩散使得玉米芯粉中的亚麻油释放至其表面,并在玉米芯粉表面重新干燥固化,实现了堵孔的作用,使得体系中的闭孔率得到进一步的提升,从而进一步提升体系的保温性能;
(2)本发明通过添加聚二甲基硅氧烷和片状锌粉,在高温火灾条件下,聚二甲基硅氧烷受热分解,并产生游离基,生成的游离基与片状锌粉结合,形成有机交联结构,有效阻隔了热量和氧气的入侵,起到了火灾前期的阻燃效果,随着温度的升高,形成有机交联结构中的有机质炭化,形成多孔炭质层,起到隔热和阻隔空气的作用,同时,可以阻止可燃气体进入燃烧相中,中断燃烧反应的进行,从而进一步提升产品的阻燃性能。
具体实施方式
按重量份数计,将30~40份质量分数为40~50%的乙二醛溶液,10~20份质量分数为20~30%的氢氧化钠溶液,30~40份对苯二酚置于四口烧瓶中,并将四口烧瓶置于数显测速恒温磁力搅拌器中,于温度为76~78℃,转速为300~500r/min条件下,恒温搅拌反应3~4h后,将四口烧瓶中温度降至60~62℃,再向四口烧瓶中加入乙二醛溶液体积0.2~0.3倍的乙烯脲,于温度为60~62℃,转速为300~500r/min条件下,恒温搅拌反应40~60min后,将四口烧瓶中温度降至50~52℃,接着向四口烧瓶中加入乙二醛溶液体积0.1~0.2倍的硅烷偶联剂KH-570,于温度为50~52℃,转速为300~500r/min条件下,恒温搅拌反应40~50min,将四口烧瓶中温度降至40~42℃,于温度为40~42℃,转速为300~500r/min条件下,继续恒温搅拌反应20~30min,即得碱性酚醛树脂;将玉米芯置于烘箱中,于温度为105~110℃条件下,干燥至恒重,得干燥玉米芯,接着将干燥玉米芯置于粉碎机中粉碎,过100目的筛,得玉米芯粉,按重量份数计,将10~20份玉米芯粉,20~30份蔗糖,10~20份亚麻油置于密闭容器其中,随后充入高压二氧化碳,于温度为150~160℃,压力为5~6MPa条件下,处理30~40min后,得混合料,接着置于液氮中极冷,得预处理玉米芯粉;按重量份数计,将60~80份高密度聚乙烯,10~20份改性酚醛树脂,5~8份聚丙烯酸锌树脂,5~8份碳酸氢钠,8~10份发泡剂,8~10份交联剂,5~8份硅烷偶联剂,10~20份预处理玉米芯粉,10~20份聚二甲基硅氧烷,5~8份片状锌粉,5~8份磷脂置于混练机中,于温度为100~120℃条件下,混炼40~60min后,得混炼料,再将混炼料挤出成型,得成型坯料,随后将成型坯料置于烘箱中,于温度为150~180℃条件下,加热处理40~60min,即得发泡保温珍珠棉。所述发泡剂为偶氮二甲酰胺,二亚硝基五亚甲基四胺或4,4'-氧代双苯磺酰肼中的任意一种。所述硅烷偶联剂为硅烷偶联剂KH-550或硅烷偶联剂KH-560中的任意一种。所述磷脂为牛奶磷脂,大豆磷脂或蛋黄磷脂中的任意一种。
按重量份数计,将40份质量分数为50%的乙二醛溶液,20份质量分数为30%的氢氧化钠溶液,40份对苯二酚置于四口烧瓶中,并将四口烧瓶置于数显测速恒温磁力搅拌器中,于温度为78℃,转速为500r/min条件下,恒温搅拌反应4h后,将四口烧瓶中温度降至62℃,再向四口烧瓶中加入乙二醛溶液体积0.3倍的乙烯脲,于温度为62℃,转速为500r/min条件下,恒温搅拌反应60min后,将四口烧瓶中温度降至52℃,接着向四口烧瓶中加入乙二醛溶液体积0.2倍的硅烷偶联剂KH-570,于温度为52℃,转速为500r/min条件下,恒温搅拌反应50min,将四口烧瓶中温度降至42℃,于温度为42℃,转速为500r/min条件下,继续恒温搅拌反应30min,即得碱性酚醛树脂;将玉米芯置于烘箱中,于温度为110℃条件下,干燥至恒重,得干燥玉米芯,接着将干燥玉米芯置于粉碎机中粉碎,过100目的筛,得玉米芯粉,按重量份数计,将20份玉米芯粉,30份蔗糖,20份亚麻油置于密闭容器其中,随后充入高压二氧化碳,于温度为160℃,压力为6MPa条件下,处理40min后,得混合料,接着置于液氮中极冷,得预处理玉米芯粉;按重量份数计,将80份高密度聚乙烯,20份改性酚醛树脂,8份聚丙烯酸锌树脂,8份碳酸氢钠,10份发泡剂,10份交联剂,8份硅烷偶联剂,20份预处理玉米芯粉,20份聚二甲基硅氧烷,8份片状锌粉,8份磷脂置于混练机中,于温度为120℃条件下,混炼60min后,得混炼料,再将混炼料挤出成型,得成型坯料,随后将成型坯料置于烘箱中,于温度为180℃条件下,加热处理60min,即得发泡保温珍珠棉。所述发泡剂为偶氮二甲酰胺。所述硅烷偶联剂为硅烷偶联剂KH-550。所述磷脂为牛奶磷脂。
按重量份数计,将40份质量分数为50%的乙二醛溶液,20份质量分数为30%的氢氧化钠溶液,40份对苯二酚置于四口烧瓶中,并将四口烧瓶置于数显测速恒温磁力搅拌器中,于温度为78℃,转速为500r/min条件下,恒温搅拌反应4h后,将四口烧瓶中温度降至62℃,再向四口烧瓶中加入乙二醛溶液体积0.3倍的乙烯脲,于温度为62℃,转速为500r/min条件下,恒温搅拌反应60min后,将四口烧瓶中温度降至52℃,接着向四口烧瓶中加入乙二醛溶液体积0.2倍的硅烷偶联剂KH-570,于温度为52℃,转速为500r/min条件下,恒温搅拌反应50min,将四口烧瓶中温度降至42℃,于温度为42℃,转速为500r/min条件下,继续恒温搅拌反应30min,即得碱性酚醛树脂;将玉米芯置于烘箱中,于温度为110℃条件下,干燥至恒重,得干燥玉米芯,接着将干燥玉米芯置于粉碎机中粉碎,过100目的筛,得玉米芯粉,按重量份数计,将20份玉米芯粉,30份蔗糖,20份亚麻油置于密闭容器其中,随后充入高压二氧化碳,于温度为160℃,压力为6MPa条件下,处理40min后,得混合料,接着置于液氮中极冷,得预处理玉米芯粉;按重量份数计,将80份高密度聚乙烯,20份改性酚醛树脂,8份碳酸氢钠,10份发泡剂,10份交联剂,8份硅烷偶联剂,20份预处理玉米芯粉,20份聚二甲基硅氧烷,8份片状锌粉,8份磷脂置于混练机中,于温度为120℃条件下,混炼60min后,得混炼料,再将混炼料挤出成型,得成型坯料,随后将成型坯料置于烘箱中,于温度为180℃条件下,加热处理60min,即得发泡保温珍珠棉。所述发泡剂为偶氮二甲酰胺。所述硅烷偶联剂为硅烷偶联剂KH-550。所述磷脂为牛奶磷脂。
按重量份数计,将40份质量分数为50%的乙二醛溶液,20份质量分数为30%的氢氧化钠溶液,40份对苯二酚置于四口烧瓶中,并将四口烧瓶置于数显测速恒温磁力搅拌器中,于温度为78℃,转速为500r/min条件下,恒温搅拌反应4h后,将四口烧瓶中温度降至62℃,再向四口烧瓶中加入乙二醛溶液体积0.3倍的乙烯脲,于温度为62℃,转速为500r/min条件下,恒温搅拌反应60min后,将四口烧瓶中温度降至52℃,接着向四口烧瓶中加入乙二醛溶液体积0.2倍的硅烷偶联剂KH-570,于温度为52℃,转速为500r/min条件下,恒温搅拌反应50min,将四口烧瓶中温度降至42℃,于温度为42℃,转速为500r/min条件下,继续恒温搅拌反应30min,即得碱性酚醛树脂;将玉米芯置于烘箱中,于温度为110℃条件下,干燥至恒重,得干燥玉米芯,接着将干燥玉米芯置于粉碎机中粉碎,过100目的筛,得玉米芯粉,按重量份数计,将20份玉米芯粉,30份蔗糖,20份亚麻油置于密闭容器其中,随后充入高压二氧化碳,于温度为160℃,压力为6MPa条件下,处理40min后,得混合料,接着置于液氮中极冷,得预处理玉米芯粉;按重量份数计,将80份高密度聚乙烯,20份改性酚醛树脂,8份聚丙烯酸锌树脂,10份发泡剂,10份交联剂,8份硅烷偶联剂,20份预处理玉米芯粉,20份聚二甲基硅氧烷,8份片状锌粉,8份磷脂置于混练机中,于温度为120℃条件下,混炼60min后,得混炼料,再将混炼料挤出成型,得成型坯料,随后将成型坯料置于烘箱中,于温度为180℃条件下,加热处理60min,即得发泡保温珍珠棉。所述发泡剂为偶氮二甲酰胺。所述硅烷偶联剂为硅烷偶联剂KH-550。所述磷脂为牛奶磷脂。
按重量份数计,将40份质量分数为50%的乙二醛溶液,20份质量分数为30%的氢氧化钠溶液,40份对苯二酚置于四口烧瓶中,并将四口烧瓶置于数显测速恒温磁力搅拌器中,于温度为78℃,转速为500r/min条件下,恒温搅拌反应4h后,将四口烧瓶中温度降至62℃,再向四口烧瓶中加入乙二醛溶液体积0.3倍的乙烯脲,于温度为62℃,转速为500r/min条件下,恒温搅拌反应60min后,将四口烧瓶中温度降至52℃,接着向四口烧瓶中加入乙二醛溶液体积0.2倍的硅烷偶联剂KH-570,于温度为52℃,转速为500r/min条件下,恒温搅拌反应50min,将四口烧瓶中温度降至42℃,于温度为42℃,转速为500r/min条件下,继续恒温搅拌反应30min,即得碱性酚醛树脂;按重量份数计,将80份高密度聚乙烯,20份改性酚醛树脂,8份聚丙烯酸锌树脂,8份碳酸氢钠,10份发泡剂,10份交联剂,8份硅烷偶联剂,20份聚二甲基硅氧烷,8份片状锌粉,8份磷脂置于混练机中,于温度为120℃条件下,混炼60min后,得混炼料,再将混炼料挤出成型,得成型坯料,随后将成型坯料置于烘箱中,于温度为180℃条件下,加热处理60min,即得发泡保温珍珠棉。所述发泡剂为偶氮二甲酰胺。所述硅烷偶联剂为硅烷偶联剂KH-550。所述磷脂为牛奶磷脂。
按重量份数计,将40份质量分数为50%的乙二醛溶液,20份质量分数为30%的氢氧化钠溶液,40份对苯二酚置于四口烧瓶中,并将四口烧瓶置于数显测速恒温磁力搅拌器中,于温度为78℃,转速为500r/min条件下,恒温搅拌反应4h后,将四口烧瓶中温度降至62℃,再向四口烧瓶中加入乙二醛溶液体积0.3倍的乙烯脲,于温度为62℃,转速为500r/min条件下,恒温搅拌反应60min后,将四口烧瓶中温度降至52℃,接着向四口烧瓶中加入乙二醛溶液体积0.2倍的硅烷偶联剂KH-570,于温度为52℃,转速为500r/min条件下,恒温搅拌反应50min,将四口烧瓶中温度降至42℃,于温度为42℃,转速为500r/min条件下,继续恒温搅拌反应30min,即得碱性酚醛树脂;将玉米芯置于烘箱中,于温度为110℃条件下,干燥至恒重,得干燥玉米芯,接着将干燥玉米芯置于粉碎机中粉碎,过100目的筛,得玉米芯粉,按重量份数计,将20份玉米芯粉,30份蔗糖,20份亚麻油置于密闭容器其中,随后充入高压二氧化碳,于温度为160℃,压力为6MPa条件下,处理40min后,得混合料,接着置于液氮中极冷,得预处理玉米芯粉;按重量份数计,将80份高密度聚乙烯,20份改性酚醛树脂,8份聚丙烯酸锌树脂,8份碳酸氢钠,10份发泡剂,10份交联剂,8份硅烷偶联剂,20份预处理玉米芯粉,8份片状锌粉,8份磷脂置于混练机中,于温度为120℃条件下,混炼60min后,得混炼料,再将混炼料挤出成型,得成型坯料,随后将成型坯料置于烘箱中,于温度为180℃条件下,加热处理60min,即得发泡保温珍珠棉。所述发泡剂为偶氮二甲酰胺。所述硅烷偶联剂为硅烷偶联剂KH-550。所述磷脂为牛奶磷脂。
按重量份数计,将40份质量分数为50%的乙二醛溶液,20份质量分数为30%的氢氧化钠溶液,40份对苯二酚置于四口烧瓶中,并将四口烧瓶置于数显测速恒温磁力搅拌器中,于温度为78℃,转速为500r/min条件下,恒温搅拌反应4h后,将四口烧瓶中温度降至62℃,再向四口烧瓶中加入乙二醛溶液体积0.3倍的乙烯脲,于温度为62℃,转速为500r/min条件下,恒温搅拌反应60min后,将四口烧瓶中温度降至52℃,接着向四口烧瓶中加入乙二醛溶液体积0.2倍的硅烷偶联剂KH-570,于温度为52℃,转速为500r/min条件下,恒温搅拌反应50min,将四口烧瓶中温度降至42℃,于温度为42℃,转速为500r/min条件下,继续恒温搅拌反应30min,即得碱性酚醛树脂;将玉米芯置于烘箱中,于温度为110℃条件下,干燥至恒重,得干燥玉米芯,接着将干燥玉米芯置于粉碎机中粉碎,过100目的筛,得玉米芯粉,按重量份数计,将20份玉米芯粉,30份蔗糖,20份亚麻油置于密闭容器其中,随后充入高压二氧化碳,于温度为160℃,压力为6MPa条件下,处理40min后,得混合料,接着置于液氮中极冷,得预处理玉米芯粉;按重量份数计,将80份高密度聚乙烯,20份改性酚醛树脂,8份聚丙烯酸锌树脂,8份碳酸氢钠,10份发泡剂,10份交联剂,8份硅烷偶联剂,20份预处理玉米芯粉,20份聚二甲基硅氧烷,8份磷脂置于混练机中,于温度为120℃条件下,混炼60min后,得混炼料,再将混炼料挤出成型,得成型坯料,随后将成型坯料置于烘箱中,于温度为180℃条件下,加热处理60min,即得发泡保温珍珠棉。所述发泡剂为偶氮二甲酰胺。所述硅烷偶联剂为硅烷偶联剂KH-550。所述磷脂为牛奶磷脂。
按重量份数计,将40份质量分数为50%的乙二醛溶液,20份质量分数为30%的氢氧化钠溶液,40份对苯二酚置于四口烧瓶中,并将四口烧瓶置于数显测速恒温磁力搅拌器中,于温度为78℃,转速为500r/min条件下,恒温搅拌反应4h后,将四口烧瓶中温度降至62℃,再向四口烧瓶中加入乙二醛溶液体积0.3倍的乙烯脲,于温度为62℃,转速为500r/min条件下,恒温搅拌反应60min后,将四口烧瓶中温度降至52℃,接着向四口烧瓶中加入乙二醛溶液体积0.2倍的硅烷偶联剂KH-570,于温度为52℃,转速为500r/min条件下,恒温搅拌反应50min,将四口烧瓶中温度降至42℃,于温度为42℃,转速为500r/min条件下,继续恒温搅拌反应30min,即得碱性酚醛树脂;将玉米芯置于烘箱中,于温度为110℃条件下,干燥至恒重,得干燥玉米芯,接着将干燥玉米芯置于粉碎机中粉碎,过100目的筛,得玉米芯粉,按重量份数计,将20份玉米芯粉,30份蔗糖,20份亚麻油置于密闭容器其中,随后充入高压二氧化碳,于温度为160℃,压力为6MPa条件下,处理40min后,得混合料,接着置于液氮中极冷,得预处理玉米芯粉;按重量份数计,将80份高密度聚乙烯,20份改性酚醛树脂,8份聚丙烯酸锌树脂,8份碳酸氢钠,10份发泡剂,10份交联剂,8份硅烷偶联剂,20份预处理玉米芯粉,20份聚二甲基硅氧烷,8份片状锌粉置于混练机中,于温度为120℃条件下,混炼60min后,得混炼料,再将混炼料挤出成型,得成型坯料,随后将成型坯料置于烘箱中,于温度为180℃条件下,加热处理60min,即得发泡保温珍珠棉。所述发泡剂为偶氮二甲酰胺。所述硅烷偶联剂为硅烷偶联剂KH-550。
对比例:常州某包装材料有限公司生产的发泡珍珠棉。
将实例1至7所得发泡珍珠棉和对比例产品进行性能检测,具体检测方法如下:
检测上述珍珠棉的极限氧指数和导热系数,具体检测结果如表1所示:
表1:性能检测表
检测内容 | 实例1 | 实例2 | 实例3 | 实例4 | 实例5 | 实例6 | 实例7 | 对比例 |
氧指数 | 33 | 25 | 26 | 22 | 24 | 25 | 24 | 16 |
导热系数/W/(m·K) | 0.021 | 0.037 | 0.031 | 0.038 | 0.040 | 0.032 | 0.035 | 0.043 |
由表1检测结果可知,本发明所得发泡保温珍珠棉具有优异的阻燃性能和保温性能。
Claims (6)
1.一种发泡保温珍珠棉,其特征在于:是由以下重量份数的原料组成:60~80份高密度聚乙烯,10~20份改性酚醛树脂,5~8份聚丙烯酸锌树脂,5~8份碳酸氢钠,8~10份发泡剂,8~10份交联剂,5~8份硅烷偶联剂,10~20份预处理玉米芯粉,10~20份聚二甲基硅氧烷,5~8份片状锌粉,5~8份磷脂;
所述发泡保温珍珠棉的制备步骤为:
(1)按原料组成称量各组分原料;
(2)将高密度聚乙烯,改性酚醛树脂,聚丙烯酸锌树脂,碳酸氢钠,发泡剂,交联剂,硅烷偶联剂,预处理玉米芯粉,聚二甲基硅氧烷,片状锌粉和磷脂混炼,挤出成型,加热,即得发泡保温珍珠棉。
2.根据权利要求1所述一种发泡保温珍珠棉,其特征在于:所述改性酚醛树脂的制备过程为:按重量份数计,将30~40份乙二醛溶液,10~20份氢氧化钠溶液,30~40份对苯二酚恒温搅拌反应,降温,加入乙二醛溶液体积0.2~0.3倍的乙烯脲搅拌反应,降温,加入乙二醛溶液体积0.1~0.2倍的硅烷偶联剂KH-570搅拌反应,降温,即得碱性酚醛树脂。
3.根据权利要求1所述一种发泡保温珍珠棉,其特征在于:所述发泡剂为偶氮二甲酰胺,二亚硝基五亚甲基四胺或4,4'-氧代双苯磺酰肼中的任意一种。
4.根据权利要求1所述一种发泡保温珍珠棉,其特征在于:所述交联剂为预处理玉米芯粉的制备过程为:将玉米芯干燥,粉碎,过100目的筛,得玉米芯粉,按重量份数计,将10~20份玉米芯粉,20~30份蔗糖,10~20份亚麻油混合,随后充入高压二氧化碳,冷却,得预处理玉米芯粉。
5.根据权利要求1所述一种发泡保温珍珠棉,其特征在于:所述硅烷偶联剂为硅烷偶联剂KH-550或硅烷偶联剂KH-560中的任意一种。
6.据权利要求1所述一种发泡保温珍珠棉,其特征在于:所述磷脂为牛奶磷脂,大豆磷脂或蛋黄磷脂中的任意一种。
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