CN107140993A - 一种改性结合剂 - Google Patents

一种改性结合剂 Download PDF

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Publication number
CN107140993A
CN107140993A CN201710568595.4A CN201710568595A CN107140993A CN 107140993 A CN107140993 A CN 107140993A CN 201710568595 A CN201710568595 A CN 201710568595A CN 107140993 A CN107140993 A CN 107140993A
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bonding agent
glucose
catalyst
modified
carbon
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Inventor
涂军波
李金雨
温军英
唐冰杰
连伟康
王义龙
陈永强
张连进
魏军从
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North China University of Science and Technology
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North China University of Science and Technology
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

本发明属于耐火材料结合剂领域，涉及一种新型改性结合剂。葡萄糖作为结合剂在使用过程中残炭率较低，且热稳定性不高，所以通过一定的技术手段改善其使用特性。其技术方案是：将葡萄糖与催化剂按照一定比例混合，得到改性葡萄糖。本发明制备的改性结合剂经高温埋碳处理，会部分原位生成碳纳米管，不仅提高了结合剂的残炭率和抗氧化性能，而且成本低廉，环境友好。

Description

一种改性结合剂
技术领域
本发明属于耐火材料结合剂领域，尤其涉及到一种改性结合剂。
背景技术
在耐火材料中，有些原料之间润湿性较差，很难直接结合，这就需要结合剂的加入。传统耐火材料中，酚醛树脂以其结合能力强、制品强度大、碳化后残炭率高等优点被广泛用作结合剂。但是，酚醛树脂一方面价格较高，是产品成本提升；另一方面在固化、干燥的过程中会有刺激性气体氨气、甲醛等产生，污染环境而且在使用过程中环境温度影响较大，温度较低时，酚醛树脂粘度大，必须加热才能使用，生产上不方便。为了解决这些问题，发明专利CN101077523A探索得到一种新型结合剂-葡萄糖。相比于酚醛树脂，葡萄糖成本低廉，环境友好，在使用过程中不产生刺激性气体，而且，省去了树脂固化的过程，缩短了生产时间，提高了生产效率。但是，葡萄糖在使用过程中由于热分解温度较低，碳化后残炭率较低，使得制品强度较低，热稳定性差，因此对葡萄糖的改性研究具有现实意义。
发明内容
为了解决葡萄糖作为结合剂在使用过程中热分解温度低、残炭率低的问题，本发明在于提供一种残炭率高、热稳定性好且环保的改性结合剂。
为了达到上述目的，本发明采用的技术方案是：取适量葡萄糖，外加1%-3%过渡金属催化剂，将催化剂加入到葡萄糖中，搅拌均匀，即得到改性结合剂。
由于采用上述方案，葡萄糖添加催化剂后，作为结合剂在使用过程中，催化剂吸附葡萄糖裂解产生的碳氢气体，原位生成碳纳米管，使葡萄糖炭化后的无定形碳转化为石墨化碳，提高葡萄糖的残炭率；由于石墨化碳的形成，其热稳定性提高。葡萄糖熔点低，在使用过程中可低温融化，随温度升高不断聚合而产生强度，且不产生刺激性气体，环境友好，缩短了制品的生产周期。
具体实施例1
取葡萄糖适量，催化剂1%，将催化剂加入到葡萄糖中，搅拌分散均匀，得到改性结合剂，在150MPa下压制成型，经1000℃埋碳气氛碳化处理3h。
经检测，碳化后的结合剂中有石墨化碳纳米管生成，改性结合剂的残炭率提高了6%，热分解温度提高15%。
具体实施例2
取葡萄糖适量，催化剂3%，将催化剂加入到葡萄糖中，搅拌分散均匀，得到改性结合剂，在150MPa下压制成型，经1400℃埋碳气氛碳化处理3h。
经检测，碳化后的结合剂中有石墨化碳纳米管生成，改性结合剂的残炭率提高了10%，热分解温度提高40%。

Claims (4)

1.一种改性结合剂，其特征在于在葡萄糖中加入催化剂，混合均匀，得到改性结合剂，改性结合剂经碳化处理后，原位生成碳纳米管。
2.权利要求1所述的改性结合剂，其特征在于催化剂的种类为过渡金属氧化物，如氧化钴、一氧化镍，二氧化锰等；催化剂质量指标为：百分含量＞95%，粒度1-10μm。
3.权利要求1所述的改性结合剂，其特征在于催化剂添加量为1-3%。
4.权利要求1所述的改性结合剂，其特征在于碳化温度为1000-1400℃。
CN201710568595.4A 2017-07-13 2017-07-13 一种改性结合剂 Pending CN107140993A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108675807A (zh) * 2018-06-21 2018-10-19 华北理工大学 一种改性聚乙烯吡咯烷酮及其制备方法
CN108715545A (zh) * 2018-06-21 2018-10-30 华北理工大学 一种连铸中间包干式料及其制备方法

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US20050096280A1 (en) * 2002-03-13 2005-05-05 W.R. Grace & Co.-Conn. Beneficiated water reducing compositions
CN101077523A (zh) * 2007-06-22 2007-11-28 河北理工大学 一种中间包干式工作衬的制备方法
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CN105217598A (zh) * 2015-10-10 2016-01-06 浙江大学 一种以蔗糖为碳源制备碳纳米管的制备方法

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US20050096280A1 (en) * 2002-03-13 2005-05-05 W.R. Grace & Co.-Conn. Beneficiated water reducing compositions
CN101077523A (zh) * 2007-06-22 2007-11-28 河北理工大学 一种中间包干式工作衬的制备方法
CN102530915A (zh) * 2011-12-23 2012-07-04 中钢集团洛阳耐火材料研究院有限公司 一种改善酚醛树脂碳化结构的方法
CN103351167A (zh) * 2012-12-28 2013-10-16 上海利尔耐火材料有限公司 一种环保型中间包干式工作衬的制备方法
CN105217598A (zh) * 2015-10-10 2016-01-06 浙江大学 一种以蔗糖为碳源制备碳纳米管的制备方法

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（苏）格拉兹阔娃: "《爆炸物燃烧的催化作用》", 28 February 1982, 国防工业出版社 *
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108675807A (zh) * 2018-06-21 2018-10-19 华北理工大学 一种改性聚乙烯吡咯烷酮及其制备方法
CN108715545A (zh) * 2018-06-21 2018-10-30 华北理工大学 一种连铸中间包干式料及其制备方法

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