牌号简介 About |
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说明:TECNOBOND PE/MLP是一种由顺丁烯二酸酐通过一种新的连续工艺改性的聚乙烯,具有很高的接枝效率,能够保证极低的游离顺丁烯二酸酐含量,没有交联材料,并且顺丁烯二酸酐在聚乙烯链中完全随机分布。用途:交联聚乙烯(PEX)是一种不腐蚀、有弹性、耐应力和耐化学物质的材料;铝具有最小的热膨胀、良好的耐高温、耐压力和尺寸稳定性。PEX和铝的结合提供了许多优势。不幸的是,聚乙烯不粘在铝上。Tecnobond PE-MLP是以交联聚乙烯(PEX)为基材,以铝为阻挡层的复合管(多层管)中的高性能粘合层。Tecnobond PE-MLP通过聚合物链扩散到其他材料(缠绕链)以及两种材料均为半结晶的共结晶,保证了对PEX的良好粘附性。Tecnobond PE-MLP对铝层的粘附主要是由于结合层极性基团与金属基体之间的化学作用。 Description: TECNOBOND PE/MLP is a PE modified by maleic anhydride through a new continuous process at high grafting efficiency suitable to assure a very low content of free maleic anhydride, the absence of cross-linked material and a completely random distribution of maleic anhydride inside the polyethylene chains . Applications: Cross-linked polyethylene (PEX) is a non- corrosion, elastic, resistant to stress and chemicals material; aluminium has a minimal thermal expansion, good resistance to high temperature and pressure and dimension stability. The combination of PEX and aluminium provides many advantages. Unfortunately PE does not adheres to aluminium. TECNOBOND PE-MLP is used as high performance adhesive layer in the composite pipe applications (multilayer pipe) based on cross-linked polyethylene (PEX) and containing aluminium as barrier layer. TECNOBOND PE-MLP guaranties a very good adhesion to PEX as by a diffusion of polymer chains into the other materials (entangled chains) and a co-crystallization of two materials being both semi-crystalline. The adhesion of TECNOBOND PE-MLP to aluminium layer is essentially due to a chemical interaction between polar groups of tie layer and metal substrate. |
技术参数 Technical Data | |||
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物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
密度 Density |
0.910 | g/cm³ | ASTM D1505 |
熔体质量流动速率 Melt Flow Rate |
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190℃,2.16kg 190℃,2.16kg |
2.0 到 3.0 | g/10min | ASTM D1238 |
马来酸酐含量 Maleic anhydride content |
0.3 到 0.5 | wt% | 内部方法 |
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
维卡软化温度 Vicat Softening Temp |
80.0 | ℃ | ASTM D1525 |
备注 | |||
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