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已有28722人申请团购
产品系列: 防腐胶粘剂

参考价格:15 | 发布于:2010-4-6

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产品信息
产品名称:共聚物底胶
产品品牌:迈强
规格型号:优等
生产厂家:山东全民塑胶有限公司
产品产地:
产品简介:

 
 
     
         
             
              一、简介与用途: 
                 二三层胶是目前国内外选用聚乙烯塑料对埋地输油、输气、给排水钢质管 道2PE外防腐结构的底胶层,3PE外防腐结构的中间粘接层。我公司依据中石油天然气行业标准SY/T0413-2002生产的二三层胶为当前国内专利新工艺,新技术。自投放市场以来,深得广大用户好评,并为多项优良工程奠定下坚实的基础。实践证明该产品各项技术指标优良,质量稳定,与各种聚乙烯塑料和环氧煤粉末涂层粘接良好,匹配优异。  
             
         
     
 
 
   
 
 
     
         
             
              二、产品特性:  
            1. 其活性基团能和环氧树脂形成化学键结合,并能和钢基材形成极性的分子间力结合,其聚烯烃主体能和聚乙烯层形成均相熔融结合,因此形成极高的粘接强度。 
            2.具有良好的物理机械性能、电绝缘性能、抗蠕变性能。  
            3.具有热塑性塑料相同的加工工艺性能,可挤出包覆、侧向缠绕,也可制成粉末进行喷涂作业。 三、技术指标:   
             
                 
                     
                         
                          序号   
                         
                         
                          项目  
                         
                         
                          单位  
                         
                         
                          指标  
                         
                         
                          实测值  
                         
                         
                          检测标准  
                         
                     
                     
                         
                          01  
                         
                         
                          外观  
                         
                         
                          ∕  
                         
                         
                          均匀颗粒  
                         
                         
                          均匀颗粒  
                         
                         
                          ∕  
                         
                     
                     
                         
                          02  
                         
                         
                          密度  
                         
                         
                          g/cm 3   
                         
                         
                          0.92  ~0.95  
                         
                         
                          0.94  
                         
                         
                          GB/T4472-84  
                         
                     
                     
                         
                          03  
                         
                         
                          熔体指数(190℃,2.16kg)   
                         
                         
                          g/10min  
                         
                         
                          ≥0.5  
                         
                         
                          1.25  
                         
                         
                          GB/T3682-89  
                         
                     
                     
                         
                          04  
                         
                         
                          维卡软化点   
                         
                         
                          ℃   
                         
                         
                          ≥90  
                         
                         
                          109  
                         
                         
                          GB/T1633-79  
                         
                     
                     
                         
                          05  
                         
                         
                          脆化温度   
                         
                         
                          ℃   
                         
                         
                          ≤-50  
                         
                         
                          -65  
                         
                         
                          GB/T5470-85  
                         
                     
                     
                         
                          06  
                         
                         
                          拉伸强度   
                         
                         
                          MPa  
                         
                         
                          ≥18  
                         
                         
                          29  
                         
                         
                          GB/T1040-79  
                         
                     
                     
                         
                          07  
                         
                         
                          断裂伸长率   
                         
                         
                          %  
                         
                         
                          ≥600  
                         
                         
                          800  
                         
                         
                          GB/T1040-79  
                         
                     
                     
                         
                          08  
                         
                         
                          体积电阻率   
                         
                         
                          Ω&|m i d|dot;m  
                         
                         
                          ≥1×10 13   
                         
                         
                          4.2  ×10 13   
                         
                         
                          GB/T1410-89  
                         
                     
                     
                         
                          09  
                         
                         
                          电气强度   
                         
                         
                          Mv/m  
                         
                         
                          ≥25  
                         
                         
                          32  
                         
                         
                          GB/T1408.1-89  
                         
                     
                     
                         
                          10  
                         
                         
                          剥离强度   
                         
                         
                          25  ℃  
                         
                         
                          N/cm  
                         
                         
                          ≥100  
                         
                         
                          165  
                         
                         
                          GB/T2792-81  
                         
                     
                     
                         
                          50  ℃  
                         
                         
                          N/cm  
                         
                         
                          ≥70  
                         
                         
                          165  
                         
                         
                          GB/T2792-81  
                         
                     
                 
             
              四、使用工艺:  
            1. 二三层胶外观通常是均匀的白色塑料颗粒,具有热塑性塑料的工艺性能,可用通用塑料成型设备加工。  
            2.二三层胶适用于2PE 、3PE防腐结构的挤出缠绕工艺和挤出包覆工艺。也可制成粉末用于粉末喷涂。  
            3.二三层胶挤出加工推荐工艺参数:  
            温度:加料段150℃-170℃、机头190℃-200℃、压缩段170℃-180℃、适配器200℃-230℃、均化段180℃-200℃、口模190℃-230℃  
            挤出机螺杆转速:应根据挤出机的螺杆结构、螺杆长径比、口模系数、熔膜延伸长度(口模与钢管距离)、配套设备、加工速度等条件设定和调整。  
            4.二三层胶用于2PE防腐结构时,推荐钢管加热温度在200℃-230℃间调整。  
            5.二三层胶用于3PE防腐结构时,钢管加热温度应根据配套环氧粉末的凝胶化时间确定。推荐钢管加热温度在150℃-200℃间调整。  
            五、包装、运输、储存:  
            1.包装选用纸塑复合袋,25㎏/袋。  
            2.运输、储存及使用过程中:防潮、防油污、防酸碱、防阳光暴晒,注意明火。  
            3.保质期限12个月。