CN109294280A - 一种低吸油性碳酸钙 - Google Patents

一种低吸油性碳酸钙 Download PDF

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CN109294280A
CN109294280A CN201811306285.6A CN201811306285A CN109294280A CN 109294280 A CN109294280 A CN 109294280A CN 201811306285 A CN201811306285 A CN 201811306285A CN 109294280 A CN109294280 A CN 109294280A
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carbon nanotube
calcium carbonate
short chain
ethyl alcohol
walled carbon
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陆玉萍
刘琳
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Jiangsu Normal University
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Jiangsu Normal University
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/02—Compounds of alkaline earth metals or magnesium
    • C09C1/021—Calcium carbonates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/44—Carbon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06—Treatment with inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/12—Treatment with organosilicon compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/19—Oil-absorption capacity, e.g. DBP values

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
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Abstract

本发明公开了一种低吸油性碳酸钙，以CaCO3和多壁碳纳米管为基质。分散到乙醇中,球磨之后将复合物和乙醇的混合物转移到装有氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的多壁碳纳米管复合CaCO3。本发明通过短链改性使得其表面形成覆膜，特别是氨基化多壁碳纳米管与短链结合，其大幅度提高表面紧密型，大大降低了其吸油性，表面能大幅度降低，有利于与高分子聚合物紧密结合。

Description

一种低吸油性碳酸钙
技术领域
本发明涉及一种低吸油性碳酸钙。
背景技术
碳酸钙是一种功能性无机填料，广泛应用于塑料、橡胶、油墨、涂料、造纸、胶粘剂、密封胶等领域。在密封胶行业，纳米碳酸钙是常见的增稠补强填料，不仅具有普通碳酸钙的性能，更具有超细、超纯、分散性好和表面改性的特点，可提高材料的补强性能、拉伸性能及抗老化性能。在碳酸钙作为塑料填料时，如果吸油量过大，容易将增塑剂吸附到填料中，使其失去增塑树脂的作用，就会使稀释剂、增塑剂的用量大为增加，反而使成本提高。另外吸油量过大，碳酸钙本身会发粘，使过滤、粉碎过程造成困难，能耗增加，碳酸钙的生产成本增加。
发明内容
针对上述现有技术存在的问题，本发明提供一种低吸油性碳酸钙，吸油性低，其表面亲油疏水，利于与高分子聚合物形成紧密结合。
为了实现上述目的，本发明采用的技术方案是：
一种低吸油性碳酸钙，以CaCO3和多壁碳纳米管为基质。
所述的碳酸钙的制备方法如下：
CaCO3和多壁碳纳米管,分散到乙醇中,球磨之后将复合物和乙醇的混合物转移到装有氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的多壁碳纳米管复合CaCO3。
本发明以CaCO3和多壁碳纳米管为基质，经过短链改性形成一种复合骨架的CaCO3，通过短链改性使得其表面形成覆膜，特别是氨基化多壁碳纳米管与短链结合，其大幅度提高表面紧密型，大大降低了其吸油性，表面能大幅度降低，有利于与高分子聚合物紧密结合。
具体实施方式
下面对本发明作进一步说明。
实施例1
100份CaCO3和15份多壁碳纳米管,分散到的100份乙醇中,球磨之后将复合物和乙醇的混合物转移到装有20份氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入20份TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的多壁碳纳米管复合CaCO3。
实施例2
100份CaCO3和30份多壁碳纳米管,分散到的100份乙醇中,球磨之后将复合物和乙醇的混合物转移到装有20份氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入20份TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的多壁碳纳米管复合CaCO3。
实施例3
100份CaCO3和50份多壁碳纳米管,分散到的100份乙醇中,球磨之后将复合物和乙醇的混合物转移到装有20份氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入20份TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的多壁碳纳米管复合CaCO3。
实施例4
100份CaCO3和5份多壁碳纳米管,分散到的100份乙醇中,球磨之后将复合物和乙醇的混合物转移到装有20份氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入20份TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的多壁碳纳米管复合CaCO3。
实施例5
100份CaCO3和15份氨基化多壁碳纳米管,分散到的100份乙醇中,球磨之后将复合物和乙醇的混合物转移到装有20份氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入20份TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的氨基化多壁碳纳米管复合CaCO3。
对比例1
100份CaCO3分散到的100份乙醇中,球磨之后将复合物和乙醇的混合物转移到装有20份氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入20份TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的CaCO3。
对比例2
100份CaCO3和15份沸石分子筛,分散到的100份乙醇中,球磨之后将复合物和乙醇的混合物转移到装有20份氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入20份TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的复合CaCO3。
吸油值指标结果见下表：
吸油值 g/100g
实施例1 23.7
实施例2 30.9
实施例3 31.2
实施例4 10.8
实施例5 12.8
对比例1 36.4
对比例2 32.4
未处理CaCO<sub>3</sub> 37.2
本发明以CaCO3和多壁碳纳米管为基质，经过短链改性形成一种复合骨架的CaCO3，通过短链改性使得其表面形成覆膜，特别是氨基化多壁碳纳米管与短链结合，其大幅度提高表面紧密型，大大降低了其吸油性，表面能大幅度降低，有利于与高分子聚合物紧密结合。特别是实施例1组合实施例5组其吸油值具有很好的降低效果。

Claims (2)

1.一种低吸油碳酸钙，其特征在于，以CaCO3和多壁碳纳米管为基质。
2.根据权利要求1所述的一种低吸油碳酸钙，其特征在于,所述的碳酸钙的制备方法如下：
CaCO3和多壁碳纳米管,分散到乙醇中,球磨之后将复合物和乙醇的混合物转移到装有氨水的的三口烧瓶中,将温度升高到60℃,加热1h,然后加入TEOS，继续搅拌，将得到的浆料过滤,用乙醇洗涤3次,最后得到短链改性的多壁碳纳米管复合CaCO3。
CN201811306285.6A 2018-11-05 2018-11-05 一种低吸油性碳酸钙 Pending CN109294280A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003097529A1 (en) * 2002-03-20 2003-11-27 Nanomaterials Technology Pte Ltd. CaCO3/Si2O • nH2O NANOCOMPOSITE PARTICLES, Si2O • nH2O NANOMATERIAL AND METHOD OF PRODUCING THE SAME
CN101565564A (zh) * 2009-06-05 2009-10-28 石家庄盖尔克斯科技有限公司 一种SiO2包膜的球形纳米碳酸钙及制备方法
CN106590047A (zh) * 2016-10-20 2017-04-26 青阳县永诚钙业有限责任公司 一种表面接枝碳纳米管的改性碳酸钙粉体及其制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003097529A1 (en) * 2002-03-20 2003-11-27 Nanomaterials Technology Pte Ltd. CaCO3/Si2O • nH2O NANOCOMPOSITE PARTICLES, Si2O • nH2O NANOMATERIAL AND METHOD OF PRODUCING THE SAME
CN101565564A (zh) * 2009-06-05 2009-10-28 石家庄盖尔克斯科技有限公司 一种SiO2包膜的球形纳米碳酸钙及制备方法
CN106590047A (zh) * 2016-10-20 2017-04-26 青阳县永诚钙业有限责任公司 一种表面接枝碳纳米管的改性碳酸钙粉体及其制备方法

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