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℃）。
