CN111434711A - 一种导电橡胶 - Google Patents

一种导电橡胶 Download PDF

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CN111434711A
CN111434711A CN201910029828.2A CN201910029828A CN111434711A CN 111434711 A CN111434711 A CN 111434711A CN 201910029828 A CN201910029828 A CN 201910029828A CN 111434711 A CN111434711 A CN 111434711A
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parts
conductive
carbon black
rubber
conductive rubber
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CN111434711B (zh
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王婷
陈宏�
姜云平
秦锴
于淼
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Beijing Research and Design Institute of Rubber Industry
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Beijing Research and Design Institute of Rubber Industry
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/06—Copolymers with styrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/001—Conductive additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Health & Medical Sciences (AREA)
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  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
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Abstract

本发明涉及一种导电橡胶。本发明的导电橡胶包含以下重量份数的组分：丁苯橡胶70‑90、天然橡胶10‑30、炭黑20‑60、导电炭黑2‑10、石墨0.5‑2、氧化锌3‑5、硬脂酸1‑3、防老剂2‑5、环保芳烃油12‑25、硫黄1.5‑2.5、N‑环已基‑2‑苯并噻唑次磺酰胺1‑3、N‑环己基硫代邻苯二甲酰亚胺0.1‑0.5。本发明的有益效果在于，所制备的导电橡胶具有良好的导电性能和力学性能，能够满足橡胶产品的要求。

Description

一种导电橡胶
技术领域
本发明属于橡胶领域，特别涉及一种导电橡胶。
背景技术
随着高分子材料应用领域的逐渐拓宽，对功能性高分子材料性能的要求也在增加。复合型导电高分子材料是高分子材料与导电填料通过分散、层压复合以及形成表面导电膜等方式构成的功能高分子材料。其中，分散复合型导电高分子材料是将导电材料以不同方式和加工工艺均匀填充到聚合物基体中去而形成的材料，导电材料的性能指标对最终产品的导电性能及其他性能均有较大影响。
目前，在导电橡胶中的非金属填料主要有：炭黑、石墨、碳纤维、石墨烯、碳纳米管等碳质粒子。通过加入炭黑导电，不仅添加份数较高，使得导电橡胶的加工性能变差及力学性能下降，而且难以获得理想的导电性能。石墨烯虽然具有出色的力学性能与电学性能，但由于其粒子比表面积大及片层间存在范德华力的作用，当加入橡胶基体时，易团聚，制约了石墨烯的导电效果，而且成本较高。
本发明的目的在于解决现有导电橡胶填料填充份数较高导致加工性能不好、力学性能下降、成本较高的问题。
发明内容
为解决上述技术问题，本发明提供了一种导电性能和力学性能较好的导电橡胶。
一种导电橡胶，该导电橡胶包含以下重量份数的组分：
丁苯橡胶 70-90
天然橡胶 10-30
炭黑 20-60
导电炭黑 2-10
石墨 0.5-2
氧化锌 3-5
硬脂酸 1-3
防老剂 2-5
环保芳烃油 12-25
硫黄 1.5-2.5
N-环已基-2-苯并噻唑次磺酰胺 1-3
N-环己基硫代邻苯二甲酰亚胺 0.1-0.5。
所述炭黑为超耐磨碳黑N100系列或中超耐磨碳黑N200系列中的一种或两种的混合。
所述导电炭黑的电阻率为0.5-2.5Ω·m。
所述防老剂为防老剂4020和防老剂RD的混合，两者的重量份数比为1-2:1。
本发明的有益效果在于，采用上述配方制备的导电橡胶，具有良好的导电性能和力学性能，能够满足橡胶产品的要求。
具体实施方式
下面结合实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。下列实施例中未注明具体条件的实验方法，通常按照常规条件。
实施例1
表1 实施例1配方
材料名称 重量份
丁苯橡胶 70
天然橡胶 30
炭黑N234 60
导电炭黑 2
石墨 2
氧化锌 5
硬脂酸 3
防老剂4020 2
防老剂RD 1
环保芳烃油 15
硫黄 2.0
N-环已基-2-苯并噻唑次磺酰胺 1.85
N-环己基硫代邻苯二甲酰亚胺 0.2
实施例2
表2 实施例2配方
材料名称 重量份
丁苯橡胶 90
天然橡胶 10
炭黑N115 20
导电炭黑 10
石墨 0.5
氧化锌 5
硬脂酸 3
防老剂4020 2
防老剂RD 1
环保芳烃油 15
硫黄 2.0
N-环已基-2-苯并噻唑次磺酰胺 1.85
N-环己基硫代邻苯二甲酰亚胺 0.2
实施例3
表3 实施例3配方
材料名称 重量份
丁苯橡胶 80
天然橡胶 20
炭黑N234 25
炭黑N115 15
导电炭黑 5
石墨 1
氧化锌 5
硬脂酸 3
防老剂4020 2
防老剂RD 1
环保芳烃油 15
硫黄 2.0
N-环已基-2-苯并噻唑次磺酰胺 1.85
N-环己基硫代邻苯二甲酰亚胺 0.2
表4 硫化胶性能
项目 实施例1 实施例2 实施例3
拉伸强度/MPa 24.46 21.30 22.96
拉断伸长率/% 494 432 447
100%定伸应力/Mpa 3.35 2.77 2.76
300%定伸应力/MPa 15.75 12.90 13.01
体积电阻率/(Ω·cm) 2×10<sup>5</sup> 1.1×10<sup>4</sup> 3×10<sup>4</sup>
表面电阻率/Ω 5.5×10<sup>6</sup> 4×10<sup>4</sup> 7×10<sup>5</sup>

Claims (3)

1.一种导电橡胶，其特征在于，所述的导电橡胶包含以下重量份数的组分：
丁苯橡胶 70-90
天然橡胶 10-30
炭黑 20-60
导电炭黑 2-10
石墨 0.5-2
氧化锌 3-5
硬脂酸 1-3
防老剂 2-5
环保芳烃油 12-25
硫黄 1.5-2.5
N-环已基-2-苯并噻唑次磺酰胺 1-3
N-环己基硫代邻苯二甲酰亚胺 0.1-0.5；
所述炭黑为超耐磨碳黑N100系列或中超耐磨碳黑N200系列中的一种或两种的混合。
2.根据权利要求1所述的一种导电橡胶，其特征在于：所述导电炭黑的电阻率为0.5-2.5Ω·m。
3.根据权利要求1所述的一种导电橡胶，其特征在于：所述防老剂为防老剂4020和防老剂RD的混合，两者的重量份数比为1-2:1。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112321911A (zh) * 2020-11-24 2021-02-05 江苏凯嘉橡胶科技股份有限公司 一种预埋线圈及其制备方法和应用

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112321911A (zh) * 2020-11-24 2021-02-05 江苏凯嘉橡胶科技股份有限公司 一种预埋线圈及其制备方法和应用
CN112321911B (zh) * 2020-11-24 2022-10-28 江苏凯嘉橡胶科技股份有限公司 一种预埋线圈及其制备方法和应用

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