二级碳纤维布技术简介 (Grade II Carbon Fiber Cloth Technical Profile)
特点 (Features)
二级碳纤维布以高强度碳纤维丝束(12K小丝束编织)为核心,抗拉强度≥3000 MPa,弹性模量≥200 GPa,伸长率≥1.5%,具备轻量化(200g/㎡厚度0.111mm,300g/㎡厚度0.167mm)和耐腐蚀性(耐酸碱/盐雾环境)。其表面呈灰白色或浅灰色,光泽度较低,丝束均匀但略粗糙,无断经/脱纬缺陷,且不可弯折(弯曲易断裂)。
优点 (Advantages)
- 经济高效:成本较一级布低20%-30%,适用于常规加固场景,性价比突出;
- 施工便捷:自重轻(仅为钢的1/4),单层粘贴即可提升承载力,无需复杂设备;
- 耐久性强:耐疲劳性优异(循环荷载下性能稳定),使用寿命超20年;
- 多功能适配:支持潮湿基面施工,兼容环氧树脂/聚氨酯等多种浸渍胶。
用途 (Applications)
- 建筑加固:混凝土梁/柱抗弯/抗剪加固(承载力提升25%-40%),砌体结构补强;
- 桥梁修复:桥墩/板梁裂缝修复(抗拉强度≥3000 MPa),抗震节点增强;
- 工业设备:储罐/管道防腐加固(耐化学腐蚀),重型机械底座防震;
- 体育器材:高尔夫球杆/赛艇轻量化部件(减重30%同时增加强度)。
Grade II Carbon Fiber Cloth Technical Profile
Features
Grade II carbon fiber cloth features high-strength carbon fiber tow (12K small tow woven), with tensile strength ≥3000 MPa, elastic modulus ≥200 GPa, and elongation ≥1.5%. It is lightweight (200g/㎡ thickness 0.111mm, 300g/㎡ 0.167mm) and corrosion-resistant (acid/alkali/salt fog resistance). The surface is gray-white/light gray with low gloss, uniform tow but slightly rough texture, free from broken warp/weft, and non-bendable (prone to fracture when bent).
Advantages
- Cost-effective: 20%-30% lower cost than Grade I, ideal for routine reinforcement;
- Easy installation: Lightweight (1/4 of steel), single-layer application for load enhancement;
- Durability: Fatigue resistance under cyclic loads, service life >20 years;
- Multi-functional: Wet-surface adhesion compatible with epoxy/polyurethane resins.
Applications
- Building reinforcement: Concrete beam/column bending/shear strengthening (25%-40% load capacity increase), masonry repair;
- Bridge restoration: Pier/slab crack repair (≥3000 MPa tensile strength), seismic node reinforcement;
- Industrial equipment: Tank/pipeline anti-corrosion (chemical resistance), heavy machinery vibration damping;
- Sports equipment: Golf clubs/sailboat components (30% weight reduction + strength gain).
注:施工需严格遵循单向铺贴(纤维方向与受力方向一致),搭接长度≥100mm,配套使用浸渍胶(如B-7000型)并控制固化温度(15-35℃)。


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