更高的回收/回收再生率。
升级较低分子量的缩聚物聚合物。
缩聚物合金的相容性
提高拉伸强度。
增强抗水解稳定性。
Appearance外观 | Clear powder清粉状 |
Solids (%)固含 | >99 |
Tg (ºC)玻璃化温度 | 60 |
Epoxy equivalent weight (g/mol)环氧当量 | 445 |
推荐用量
Plastic塑料 | Application用于 | Recommended Dosage推荐用量 (% w/w) |
Polyesters (PET)聚酯 | Fiber (staple and filament) 纤维（短纤维和长丝） | 0.1 to 0.7 |
Injection/blow molding bottle 注塑/吹塑瓶 | 0.1 to 0.8 | |
Sheet, tape and profile extrusion 片材，胶带和型材挤出 | 0.2 to 1.0 | |
Film and bottle blow molding 薄膜和瓶吹塑 | 0.2 to 1.0 | |
Strapping打包带 | 0.2 to 1.0 | |
Compatibilization PET/PA-nylon 聚酯与尼龙相容 | 0.4 to 1.5 | |
Foam发泡 | 0.4 to 1.5 | |
Polyesters (PETG, PBT, PLA, PBAT,PBS,others) 聚酯（PETG，PBT，PLA，PBAT,PBS其他） | Injection Molding注射成型 | 0.1 to 0.3 |
Fiber纤维 | 0.1 to 0.7 | |
Profile extrusion型材挤出 | 0.2 to 1.0 | |
Sheet and film片材和薄膜 | 0.2 to 1.0 | |
Branching分枝 | 0.5 to 1.5 | |
Foam发泡 | 0.4 to 1.5 | |
Polyamides (nylon, PA 6, other) 聚酰胺（尼龙，PA 6，其他） | Injection Molding注射成型 | 0.1 to 0.3 |
Profile extrusion型材挤出 | 0.4 to 1.0 | |
Sheet, film and tape 片材，薄膜，胶带 | 0.4 to 1.5 | |
Branching分枝 | 0.5 to 1.5 | |
Compatibilization polyester/PA-nylon 增容聚酯/ PA尼龙 | 0.5 to 1.5 | |
Polycarbonates (PC) 聚碳酸酯（PC） | Injection molding注射成型 | 0.1 to 0.3 |
Hydrolytic stabilization水解稳定 | 0.4 to 1.5 | |
Sheet and film片材和薄膜 | 0.4 to 1.5 | |
Branching分枝 | 0.5 to 1.5 | |
Other condensation thermoplastics (TPU, POM) 其他冷凝热塑性塑料（TPU，POM） | Melt strength熔体强度 | 0.3 to 1.0 |
Stabilization稳定 | 0.2 to 1.0 |
剂量方法
Operation操作 | Procedure步骤 |
1. Dry blending 干混 | a) Flake or masterbatch can be dry-blended with pre-dried and cold (<40°C) plastic pellets or flakes with the aid of a low shear mixer such as a tumble mixer or conical mixer. 可以使用低剪切混合器（如滚筒式混合器或锥形混合器）将片状或母料与预干燥和冷（<40°C）塑料颗粒或薄片干混 |
b) CXP4445 can be mixed with other materials in a high shear mixer below 50°C. 可以在低于50℃的高剪切混合器中与其他材料混合。 | |
2. Addition of CXP4445 on a single screw extruder, twin screw extruder or kneader 在单螺杆挤出机，双螺杆挤出机或knea上添加 CXP4445 | a) Dry-blend prepared as in (1) can be volumetrically, gravimetrically or flood fed directly into mixing zone of the extruder 如（1）中制备的干混物可以体积计量，重量分析或直接进料到挤出机的混合区 |
b) Gravimetric feed metering systems can be used to feed flake or masterbatch product form in a parallel stream with the plastic directly into the feeding zone of the extruder. Belt and disc feeders are particularly recommended. Twin-Screw Feeders Non intermeshing spiral screw with 6mm clearance between the screw and the tube recommended. Eliminate agglomeration at the throat or feed zone by maintaining tube temperature below 80°C. 重量进料计量系统可用于将平行流中的薄片或母粒产品形式直接进入挤出机的进料区。 特别推荐皮带和圆盘给料机。 双螺杆给料机推荐使用螺杆和管之间6mm间隙的非啮合螺旋螺杆。 通过保持管温度低于80℃消除在喉部或进料区聚集 | |
c) Volumetric Feeders: well calibrated feeders with variation of less than 0,5% are recommended. Clearance of 3 to 5 mm between the screw and tube is also required to reduce fines. Eliminate agglomeration at the throat or feed zone by maintaining tube temperature below 80°C .体积给料机：建议使用良好校准的变送量小于0.5％的进料器。 螺杆和管之间的间隙为3至5毫米也需要减少细粉。 通过保持管温度低于80℃消除在喉部或进料区聚集。 | |
d) Side feed systems and other types of forced dosing extruders may be employed with all solid product forms, except for fine powder, to feed the products downstream. Residence time recommendations are given below in reference to downstream feeds. 除了细粉末之外，侧进料系统和其它类型的强制加料挤出机可以与所有固体产品形式一起使用，以在下游进料产品。 以下参考下游饲料给出停留时间建议。 | |
e) Direct gravimetric/volumetric addition of the chain extender in any form to the plastic melt may be carried out through any suitable downstream venting or degassing port. 任何形式的扩链剂直接重量/体积添加到塑料熔体可以通过任何合适的下游排气口或脱气口进行。 | |
3. Addition during injection molding and combined injection-blow molding operations 在注塑成型和组合注塑吹塑成型操作期间添加 | a) Dry-blends prepared as in (1) can be volumetrically, gravimetrically or flood fed directly into the mixing zone of the injection molder.如（1）中制备的干混合物可以体积计量，重量分析或直接进料到注射成型机的混合区域 |
b) Flakes not recommended for direct addition to injection molding equipment.片状不建议直接加入注塑设备。 | |
c) Separate gravimetric feed metering systems can be used to feed masterbatches of CXP4445 in a parallel stream with the plastic directly into the feeding zone of the injection molder. Belt and disk feeders are particularly recommended. Twin-Screw no intermeshing spiral screw with 6mm clearance between the screw and the tube recommended. 单独的重量计量计量系统可用于将 CXP4445的母料与塑料直接进入注射成型机的进料区。 特别推荐皮带和圆盘给料机。 双螺杆无啮合螺旋螺钉，螺杆和管之间6mm间隙推荐。 | |
d) Volumetric Feeders: Well calibrated feeders with variation of less than 0,5% are recommended, Clearance of 3 to 5 mm between the screw and tube is also required to reduce fines. Eliminate agglomeration at the throat or feed zone by maintaining temperatures below 100°C for MB polymer carriers or 80°C for wax carriers. 体积给料机：建议使用良好校准的变送量小于0.5％的进料器，螺杆和管之间的间隙为3至5 mm也需要减少细粉。 通过将MB聚合物载体的温度保持在低于100℃，对蜡载体保持温度低于80℃，可消除喉部或进料区的附聚。 |
加工条件
CXP4445不应在高于320°C的加工温度。
挤出机压力效应
在反应性挤出或反应性注射成型工具中使用CXP4445显着增加了分子量，这导致熔体粘度的增加，从而提高了设备中观察到的压力。下表列举了将CXP4445加入到大型挤出机中时在PET中观察到的模具压力的大幅增加。 预计其他塑料类似增长。
Extrude variable 拉伸变量 | PET Control控制 | 0,50% CXP4445 | 1,00% CXP4445 | 1,50% CXP4445 |
Pressure die压模 | 1 | 1.25-1.45 | 1.55-1.80 | 1.80-2.00 |
Pressure screen 压力筛 | 1 | 1.25-1.45 | 1.90-1.80 | 1.80-2.00 |
Motor power draw 电机功率 | 1 | 1.05-1.08 | 1.13-1.12 | 1.12-1.15 |
在模具和前屏幕系统中的压力增加可以比用于较高使用水平的典型操作压力高25％至100％。瞬时压力变化和尖峰是由于熔体粘度的瞬间变化很大。 在恒定温度下，熔体粘度的变化通常是由于可变的进料速率和/或混合不良。
压力和功率的变化随着进料速度的波动而计算如下表所示。
Extrude variable 拉伸变量 | Steady feed within 5% of target value 稳定饲料在目标值的5％以内 | Steady feed within 10% of target value 稳定饲料在目标值的10％以内 | Steady feed within 20% of target value 稳定饲料在目标值的20％以内 |
Pressure die压模 | ± 2.0% | ±4.3% | ±9.0% |
Pressure screen 压力筛 | ±2.5% | ±4.5% | ±9.2% |
Pressure draw压差 | ±0.4% | ±0.8% | ±1.75% |
降低 CXP4445的进料速度。
降低转速。 这对单螺杆挤出机和挤压双螺杆挤出机的压力降低，并且将减少对供给双螺杆挤出机的不适
缓慢升高温度，从模头开始，然后从最后到达区域。
在控制压力下，慢慢增加 CXP4445进料。
为了稳定运行，请参阅“挤出机压力效应”一节中给出的建议
CXP4445是一种多功能聚合物，专为在分解聚合物中恢复分子量和IV（特性粘度）而设计。
CXP4445可以提升低质量的回收利用，可在加工过程中使用，以提高聚酯或聚酰胺的熔体强度。CXP4445还具有高环氧官能度，这允许与缩合热塑性塑料快速反应，从而导致更高的分子量。
