CN106349760A - 一种高阻燃性复合碳酸钙及其制备方法 - Google Patents
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Abstract
本发明公开了一种高阻燃性复合碳酸钙及其制备方法,包括以下原料:碳酸钙、不饱和聚酯树脂、氢氧化镁、高岭土、苯乙烯、有机硅改性丙烯酸树脂、甘油、纯苯、异丁醇、改性剂、水适量;其制备方法包括以下步骤:(1)制得预混料待用;(2)制得混合液;(3)制得改性剂;(4)将预混料、混合液和改性剂混合,搅拌均匀,研磨、烘干、粉碎成超细粉末即得。本发明通过将碳酸钙与苯乙烯、不饱和聚酯树脂、氢氧化镁、有机硅改性丙烯酸树脂等综合性能较佳的材料进行组合,改进生产工艺,采用改性剂等有效地增加了组合物的高阻燃性能;其生产工艺简单,生产周期短,质量稳定,生产成本低,应用价值较高。
Description
技术领域
本发明涉及工业填料领域,尤其涉及一种高阻燃性复合碳酸钙及其制备方法。
背景技术
碳酸钙是一种无机化合物,CaCO3俗称:灰石、石灰石、石粉、大理石等,是由钙离子和碳酸根离子结合生成的,是一类重要的功能性无机填料,工业上用途甚广,具有价格低廉、储量丰富、性能稳定、易加工、无毒等优点,能够显著的改善材料的加工性能、物理性能以及降低生产成本等等,广泛应用于塑料、橡胶、涂料、造纸等领域。
在碳酸钙的应用领域中,大多产品属于聚合物的范畴,然而,碳酸钙粒子表面分布有强亲水性的羟基,表现为碱性,和有机高聚物基质材料的界面性质不同,相容性差,难以在基质材料中分散均匀以及和基质材料形成强的结合力,造成两材料之间的界面缺陷,使复合材料某些力学性能下降。因此需要改变传统碳酸钙产品的性能,改善其应用性能以满足新材料、新技术发展的需要,是碳酸钙工业急需解决的问题。
发明内容
本发明的目的在于,提供一种高阻燃性复合碳酸钙及其制备方法,通过将综合性能较佳的材料进行组合,改进生产工艺,采用改性剂等有效地增加了组合物的高阻燃性能。
为了实现上述目的,本发明采用的技术方案如下:
一种高阻燃性复合碳酸钙及其制备方法,包括以下重量份的原料:碳酸钙50~80份、不饱和聚酯树脂2~4份、氢氧化镁1~3份、高岭土1~3份、苯乙烯3~5份、有机硅改性丙烯酸树脂4~6份、甘油2~3份、纯苯1~1.5份、异丁醇1~2份、改性剂5~8份、水适量;其中所述改性剂由以下重量份的原料制成:纳米二氧化硅30~50份、铁钛粉2~4份、碳纤维3~5份、硅丙乳液2~5份、硫酸钡1~3份、亚硫酸钠3~5份、异佛尔酮2~4份;
其制备方法包括以下步骤:
(1)将碳酸钙、不饱和聚酯树脂、氢氧化镁、高岭土混合均匀加入砂磨机内,研磨至300~400目,得预混料待用;
(2)将苯乙烯、有机硅改性丙烯酸树脂、甘油放入混料机中,升温至75~85℃,混合搅拌半小时,然后加入纯苯、异丁醇,继续升温至120~140℃,搅拌均匀,得混合液;
(3)将纳米二氧化硅、铁钛粉、碳纤维、硅丙乳液加适量水搅拌,并升温至75~85℃,搅拌均匀后加入硫酸钡、亚硫酸钠、异佛尔酮,继续加热至120~140℃,混合搅拌均匀,得改性剂;
(4)将步骤(1)得到的预混料、步骤(2)得到的混合液和步骤(3)得到的改性剂混合,搅拌均匀,研磨、烘干、粉碎成超细粉末即得。
本发明的有益效果为:
本发明通过将碳酸钙与苯乙烯、不饱和聚酯树脂、氢氧化镁、有机硅改性丙烯酸树脂等综合性能较佳的材料进行组合,改进生产工艺,采用改性剂等有效地增加了组合物的高阻燃性能;本发明生产工艺简单,生产过程环保无污染,实现了资源和能源的充分利用,生产周期短,质量稳定,生产成本低,应用价值较高。
具体实施方式:
以下以具体实施例来说明本发明的技术方案,但本发明的保护范围不限于此:
实施例1:
一种高阻燃性复合碳酸钙及其制备方法,包括以下重量份的原料:碳酸钙50份、不饱和聚酯树脂2份、氢氧化镁1份、高岭土1份、苯乙烯3份、有机硅改性丙烯酸树脂4份、甘油2份、纯苯1份、异丁醇1份、改性剂5份、水适量;其中所述改性剂由以下重量份的原料制成:纳米二氧化硅30份、铁钛粉2份、碳纤维3份、硅丙乳液2份、硫酸钡1份、亚硫酸钠3份、异佛尔酮2份;
其制备方法包括以下步骤:
(1)将碳酸钙、不饱和聚酯树脂、氢氧化镁、高岭土混合均匀加入砂磨机内,研磨至300~400目,得预混料待用;
(2)将苯乙烯、有机硅改性丙烯酸树脂、甘油放入混料机中,升温至75℃,混合搅拌半小时,然后加入纯苯、异丁醇,继续升温至140℃,搅拌均匀,得混合液;
(3)将纳米二氧化硅、铁钛粉、碳纤维、硅丙乳液加适量水搅拌,并升温至85℃,搅拌均匀后加入硫酸钡、亚硫酸钠、异佛尔酮,继续加热至120℃,混合搅拌均匀,得改性剂;
(4)将步骤(1)得到的预混料、步骤(2)得到的混合液和步骤(3)得到的改性剂混合,搅拌均匀,研磨、烘干、粉碎成超细粉末即得。
实施例2:
一种高阻燃性复合碳酸钙及其制备方法,包括以下重量份的原料:碳酸钙80份、不饱和聚酯树脂4份、氢氧化镁3份、高岭土3份、苯乙烯5份、有机硅改性丙烯酸树脂6份、甘油3份、纯苯1.5份、异丁醇2份、改性剂8份、水适量;其中所述改性剂由以下重量份的原料制成:纳米二氧化硅50份、铁钛粉4份、碳纤维5份、硅丙乳液5份、硫酸钡3份、亚硫酸钠5份、异佛尔酮4份;
其制备方法包括以下步骤:
(1)将碳酸钙、不饱和聚酯树脂、氢氧化镁、高岭土混合均匀加入砂磨机内,研磨至300~400目,得预混料待用;
(2)将苯乙烯、有机硅改性丙烯酸树脂、甘油放入混料机中,升温至85℃,混合搅拌半小时,然后加入纯苯、异丁醇,继续升温至120℃,搅拌均匀,得混合液;
(3)将纳米二氧化硅、铁钛粉、碳纤维、硅丙乳液加适量水搅拌,并升温至75℃,搅拌均匀后加入硫酸钡、亚硫酸钠、异佛尔酮,继续加热至140℃,混合搅拌均匀,得改性剂;
(4)将步骤(1)得到的预混料、步骤(2)得到的混合液和步骤(3)得到的改性剂混合,搅拌均匀,研磨、烘干、粉碎成超细粉末即得。
以上实施例仅用以说明本发明的技术方案,而非对本发明保护范围的限制,尽管参照较佳实施例对本发明作了详细地说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的实质和范围。
Claims (1)
1.一种高阻燃性复合碳酸钙及其制备方法,其特征在于,包括以下重量份的原料:碳酸钙50~80份、不饱和聚酯树脂2~4份、氢氧化镁1~3份、高岭土1~3份、苯乙烯3~5份、有机硅改性丙烯酸树脂4~6份、甘油2~3份、纯苯1~1.5份、异丁醇1~2份、改性剂5~8份、水适量;其中所述改性剂由以下重量份的原料制成:纳米二氧化硅30~50份、铁钛粉2~4份、碳纤维3~5份、硅丙乳液2~5份、硫酸钡1~3份、亚硫酸钠3~5份、异佛尔酮2~4份;
其制备方法包括以下步骤:
(1)将碳酸钙、不饱和聚酯树脂、氢氧化镁、高岭土混合均匀加入砂磨机内,研磨至300~400目,得预混料待用;
(2)将苯乙烯、有机硅改性丙烯酸树脂、甘油放入混料机中,升温至75~85℃,混合搅拌半小时,然后加入纯苯、异丁醇,继续升温至120~140℃,搅拌均匀,得混合液;
(3)将纳米二氧化硅、铁钛粉、碳纤维、硅丙乳液加适量水搅拌,并升温至75~85℃,搅拌均匀后加入硫酸钡、亚硫酸钠、异佛尔酮,继续加热至120~140℃,混合搅拌均匀,得改性剂;
(4)将步骤(1)得到的预混料、步骤(2)得到的混合液和步骤(3)得到的改性剂混合,搅拌均匀,研磨、烘干、粉碎成超细粉末即得。
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CN112898942A (zh) * | 2021-01-23 | 2021-06-04 | 广西碳酸钙产业化工程院有限公司 | 一种赋予单组份脱醇型硅酮密封胶良好阻燃性能专用重质碳酸钙及其制备方法 |
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