Overview
Wet strength agents are chemical additives that impart temporary or permanent wet strength to paper products. These resins work by forming chemical bonds with cellulose fibers that maintain integrity when wet. The most common type is polyamide-epichlorohydrin (PAE) resin, accounting for about 80% of the wet strength chemicals market. Modern formulations are designed to meet specific performance requirements while addressing environmental concerns regarding absorbable organic halides (AOX).
Physical and Chemical Properties
Commercial wet strength agents typically appear as viscous amber liquids with solids content ranging from 12-25%. They exhibit cationic charge characteristics that facilitate adsorption onto negatively charged cellulose fibers. The curing process is temperature-dependent, with full wet strength development typically requiring heated drying. Most formulations function optimally in the pH range of 6-9, though some specialty products are designed for acidic or alkaline papermaking systems.
Main Applications
Primary applications include towel and tissue products (15-30% wet strength retention), liquid packaging boards, and specialty papers like tea bags and filter media. The food packaging sector represents a growing market segment with strict regulatory requirements. In industrial applications, wet strength agents are crucial for filter papers used in automotive and aerospace applications. The medical field utilizes them for surgical drapes and other disposable products requiring fluid resistance.
Safety and Storage
While most commercial wet strength agents have low acute toxicity, proper handling precautions are essential. Storage tanks should be constructed of stainless steel or polyethylene to prevent resin degradation. Manufacturers typically recommend a maximum shelf life of 3-6 months. Freezing can cause irreversible damage to the resin structure, while excessive heat may accelerate self-crosslinking reactions.
B2B Procurement Guide
When sourcing wet strength agents, consider the paper grade (kraft, recycled, etc.), machine speed, and drying conditions. Technical specifications should include charge density, viscosity, and AOX content for environmental compliance. Leading manufacturers often provide application specialists to assist with dosage optimization (typically 0.1-1.5% on dry fiber). Bulk purchasing (ISO tank containers) can reduce costs by 15-25% compared to drum shipments.
Related Manufacturers
- 主营：整体式蜂窝陶瓷蓄热体、板片式蜂窝陶瓷蓄热体、蜂窝沸石、湿强剂、催化剂
- 主营：聚乙烯亚胺、聚乙烯胺、PEI、湿强剂、氮丙啶交联剂、碳化二亚胺交联剂、压敏胶水固化剂、保护膜胶水固化剂、聚乙烯蜡乳液、印花催化剂、长效交联剂、绒毛手感剂、干滑手感剂、油滑手感剂、防真植物防粘剂、螺杆清洗料、抗水解剂、耐水解剂、碳化二亚胺抗水解剂、皮革交联剂、粉滑手感剂、丝滑手感剂、尼龙抗水解剂、聚氨酯抗水解剂、弱粘剂、聚乳酸抗水解剂
- 主营：氧化铁脱硫剂、脱硫设备、沼气脱硫设备、湿强剂、气体中硫化氢的脱除
- 主营：膨胀剂、胶黏剂、消除剂、湿强剂、清除剂、消泡剂、粘合剂、减水剂、纸盒胶水、纸塑胶水、液体引气剂、甲醛灭除剂、砂浆悬浮剂、水泥悬浮剂、抗涂鸦涂层、粉体引气剂、蛋糕盒胶水、甲醛吸附剂、粉末引气剂、甲醛捕捉剂、石膏缓凝剂、砂浆引气剂、甲醛净化包、卷烟专用胶水、蛋糕底盒胶水、混凝土引气剂
- 主营：干强剂、中性施胶剂、表面施胶剂、湿强剂、造纸分散剂、淀粉降粘剂、纸张脱墨剂、纸张挺硬剂、石膏增强剂
- 主营：全氟聚醚二醇、全氟三丁胺、聚硅氮烷、阳离子湿强剂、特种硅油、特种硅树脂
- 主营：粘缸剂、造纸柔软剂、树脂控制剂、湿强熟化剂、毛布清洗剂、改良剂、杀菌剂、抑垢剂、烘缸剥离剂、除胶剂、螯合剂
- 主营：表面施胶剂、苯丙表胶、乳液施胶剂、湿强解离剂、中性施胶剂、浆内施胶剂、AKD施胶剂、高分子乳化剂、固体表面施胶剂、纸塑模具防水剂、蜡粉、烷基烯酮二聚体、蜡乳液、松香胶、抗掉毛掉粉剂、纤维增强剂、干强剂、抗水剂、挺硬剂、拉力增强剂、增白剂、聚丙烯酰胺树脂、涂布润滑剂、涂布分散剂、丁苯乳液
- 主营：漂白粉、茶皂素、噻霉酮、湿强剂、浮选油、草酸铵、戊二醛、苯甲醇、磺化油、漂粉精、氟化钠、三甘醇、碳酸钙、白僵菌、松醇油、碳酸钡、黄糊精、雷米邦a、号全精炼、杀菌剂bit、三乙醇胺、牛骨发酵、快干水泥、多聚甲醛、次氯酸钠、羟基乙叉
- 主营：甘氨酸、水苏糖、阻燃剂、湿强剂、硫酸锌、硫酸锆、硫酸锂、硫酸锶、硫酸锰、铝酸锌、1680-21-3、牛磺酸、褪黑素、磷酸铁、丙酸铵、苏云金、碳酸镁、麝香酮、肉桂醛、磷酸铝、王浆酸、椰油胺、赖氨酸、增塑剂、浸膏粉、乙氧基
- 主营：造纸化学品、造纸添加剂、纸张添加剂、湿强剂、除臭剂、拉力剂、增强剂、干强剂、瓦楞纸固体施胶剂、硬挺剂、防水剂、瓦楞纸、AKD中性胶、解胶剂、助留剂、膨松剂、脱油剂、迷信纸、脱油脱蜡剂、消泡剂、絮凝剂、脱蜡剂、脱墨剂、柔软剂、助滤剂
- 主营：湿强剂、过氧化尿素、干强剂、除臭剂
- 主营：四氯乙烯、丙酸、2.6-二甲基苯酚、溶剂增湿剂、碳酸乙烯酯、邻甲酚、有机合成中间体、甲基膦酸二甲酯、增塑剂、亚铁氰化钾、锂电池电解液、化学分析试剂、合成材料阻燃剂、泡沫塑料、环氧活性稀释剂、无色粘稠状液体、聚苯醚
- 主营：多聚甲醛、己二酸、三乙胺、湿强剂、16己二胺、对苯二胺、丙烯酰胺、二丙二醇丁醚、二甲基甲酰胺、乙二醇甲醚、二乙二醇丁醚、二乙烯三胺、环氧氯丙烷
- 主营：四氢呋喃、甲基丙烯酸甲酯、二乙胺、湿强剂、三乙胺、MIBK、丙二醇甲醚PM、正丁醇、异丙醇、乙醇、二甲基乙酰胺DMAC、吗啉、乙腈、丙烯酸异辛酯、甲基丙烯酸羟乙酯、丙烯酸、甲基丙烯酸、乙酸乙酯、辛醇、醋酸丁酯、二氯甲烷