行业验证制造数据 · 2026

硅橡胶

基于 CNFX 目录中多个工厂资料的聚合洞察,硅橡胶 在 橡胶和塑料制品制造 行业中通常会围绕 Hardness 到 Tensile Strength 进行能力评估。

技术定义与核心装配

一个典型的 硅橡胶 通常集成 Polymer Base 与 Reinforcing Filler。CNFX 上列出的制造商通常强调 Polysiloxane Polymers 结构,以支持稳定的生产应用。

A synthetic elastomer composed of silicone polymers with exceptional temperature resistance, flexibility, and chemical stability.

技术定义

Silicone rubber is a high-performance elastomeric material derived from silicone polymers (polysiloxanes) containing silicon-oxygen bonds in their backbone. It exhibits outstanding thermal stability across a wide temperature range (-60°C to 230°C), excellent electrical insulation properties, UV resistance, ozone resistance, and biocompatibility. Unlike organic rubbers, silicone rubber maintains its flexibility and mechanical properties in extreme environments due to its inorganic polymer structure.

工作原理

Silicone rubber functions through its cross-linked polymer network structure. The silicone polymer chains (typically polydimethylsiloxane) are vulcanized using heat or catalysts to create covalent bonds between chains, forming a three-dimensional elastomeric network. This cross-linking provides elastic recovery while the silicon-oxygen backbone gives thermal and chemical stability. The material deforms under stress due to chain uncoiling and returns to its original shape when stress is removed, with the cross-links preventing permanent deformation.

技术参数

Hardness
Measurement of material stiffness using durometer scaleShore A
Tensile Strength
Maximum stress material can withstand while being stretched before breakingMPa
Elongation at Break
Percentage increase in length before material rupture under tension%
Temperature Range
Operating temperature range where material maintains properties°C
Tear Strength
Resistance to propagation of a cut or nick in the materialkN/m

主要材料

Polysiloxane Polymers Silica Fillers Cross-linking Agents

组件 / BOM

Polymer Base
Primary elastomeric matrix providing flexibility and elasticity
材料: Polydimethylsiloxane or modified polysiloxane
Reinforcing Filler
Improves mechanical strength, tear resistance, and hardness
材料: Fumed silica or precipitated silica
Cross-linking Agent
Forms covalent bonds between polymer chains during vulcanization
材料: Peroxide or platinum catalyst
Processing Additives
Facilitates manufacturing, improves flow, and prevents sticking
材料: Internal release agents, plasticizers
Pigments/Colorants
Provides visual identification and aesthetic appearance
材料: Inorganic pigments or FDA-approved colorants

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Hydrocarbon fluid immersion exceeding 72 hours at 150°C Volume swell exceeding 25% causing seal extrusion and compression set >80% Fluorinated silicone formulation with 0.5% vinyl content for crosslink density optimization
Ozone concentration >50 ppm at 100°C under 20% strain Surface crack propagation at 0.1 mm/hour leading to tensile strength loss >40% Antiozonant additive package with 2 phr N-phenyl-N'-isopropyl-p-phenylenediamine

工程推理

运行范围
范围
-60°C to 230°C continuous, 300°C intermittent for 1000 hours
失效边界
Tensile strength degradation to 50% of initial value at 250°C after 500 hours exposure
Siloxane bond scission via thermal-oxidative degradation at Arrhenius activation energy of 125 kJ/mol
制造语境
硅橡胶 在 橡胶和塑料制品制造 中会按材料、工艺窗口和检验要求共同评估。

别名与俗称

Silicone Elastomer High-Temperature Rubber Polysiloxane Rubber Silicone Gum

行业别名与关键词

该产品在 CNFX 数据库中的搜索词、别名和技术称呼。

应用匹配与尺寸矩阵

运行限制
pressure:Up to 10 MPa (100 bar) depending on hardness and geometry
flow rate:Not applicable (solid elastomer)
temperature:-60°C to 230°C (continuous), up to 300°C (intermittent)
slurry concentration:Not applicable (solid elastomer)
兼容性
Potable water systemsFood-grade applicationsHigh-temperature steam lines
不适用:Concentrated acids or solvents (e.g., ketones, aromatic hydrocarbons)
选型所需数据
  • Hardness (Shore A scale)
  • Operating temperature range
  • Required compression set resistance

可靠性与工程风险分析

失效模式与根因
Thermal degradation
原因:Exposure to temperatures exceeding silicone's continuous service limit (typically 200-250°C), causing molecular chain scission, loss of elasticity, and embrittlement
Chemical swelling/attack
原因:Contact with incompatible fluids such as concentrated acids, alkalis, solvents, or oils that penetrate the polymer matrix, causing dimensional changes, softening, or loss of mechanical properties
维护信号
  • Visible surface cracking, crazing, or discoloration (yellowing/browning)
  • Audible squeaking or increased friction noise during dynamic movement
工程建议
  • Implement temperature monitoring and ensure operating conditions stay within manufacturer's specified range, particularly avoiding localized overheating
  • Conduct compatibility testing with process fluids and establish material substitution protocols for incompatible chemical environments

合规与制造标准

参考标准
ISO 3302-1:2014 - Rubber, vulcanized or thermoplastic - Tolerances for products - Part 1: Dimensional tolerancesASTM D2000 - Standard Classification System for Rubber Products in Automotive ApplicationsDIN 7715-1:2019 - Rubber seals - Material requirements for seals in sanitary pipework - Part 1: Vulcanized rubber
制造精度
  • Thickness: +/-0.1mm (for sheets up to 3mm)
  • Hardness: +/-5 Shore A (for typical 40-80 Shore A range)
质量检验
  • Tensile Strength & Elongation Test (ASTM D412)
  • Hardness Test (ASTM D2240 - Shore A scale)

生产该产品的制造商

具备该产品生产能力的中国制造商与相关工厂资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

供应链相关产品与组件

压缩/过渡段

挤出螺杆中将物料压缩并从固态过渡到熔融状态的部分。

查看规格 ->
输送带/输送链

输送系统中用于在工位间连续移动和传送模具的移动表面或链接系列。

查看规格 ->
冷却单元

自动模具喷涂与冷却系统中的一个组件,负责在喷涂操作后快速降低模具温度。

查看规格 ->
切割转子

用于造粒设备中,将聚合物线材切割成均匀颗粒的旋转刀片组件。

查看规格 ->

常见问题

What temperature range can silicone rubber withstand?

Silicone rubber typically operates effectively from -60°C to 230°C, with specialized formulations capable of withstanding temperatures up to 300°C for short periods.

How does silicone rubber compare to natural rubber in chemical resistance?

Silicone rubber offers superior chemical resistance to oils, solvents, and ozone compared to natural rubber, making it ideal for harsh industrial environments where chemical exposure is common.

What are the primary applications for silicone rubber in manufacturing?

Silicone rubber is widely used in gaskets, seals, insulation, medical devices, automotive components, and industrial machinery parts due to its durability, flexibility, and temperature stability.

我可以直接联系工厂吗?

CNFX 是开放目录,不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。

CNFX Industrial Index v2.6.05 · 橡胶和塑料制品制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 硅橡胶

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