LSP（液态缩聚）提高 PET 回收材料（纤维、瓶片、薄膜、低 IV 聚合物）的质量，生产高档 PET 纤维、PET 包装条、PET 颗粒、PET 薄膜、回收瓶到瓶、纤维到 纤维，提高资源的回收利用率和质量。
LSP PET 塑料液态聚合回收生产线, 用于 IV 改进
LSP（液态缩聚）提高了PET回收材料（纤维，瓶片，薄膜，低IV聚合物）的质量，生产出高级PET纤维，PET包装带，PET颗粒，PET薄膜，将瓶子回收到瓶子，将纤维回收到 纤维，提高回收利用率和资源质量。
创新结构
反应器创新结构设计，增大聚合反应面积，提高PET熔体的流动性，缩短反应时间。
智能控制
采用全新智能控制系统，操作和实时监控比以往更加便捷，可预测维护，提高生产效率。
高能效
采用变频设备，自动调节运行频率。多级温控系统最大程度降低所需加热能耗，降低整个系统的运行成本。
LSP 优异的IV改善效果
反应器具有良好的均质特性，可将不同的原料混合成均匀的熔体。
适用材料
PET薄膜、片材、废料、穿孔废料或织物纤维、涤纶织物、废纱等。
通过反应器的缓冲，整个生产系统更可控，提高产量，避免更换过滤器过程中的时间损失。
LSP是固态聚合（SSP）的极其有效的替代品，因为不需要能量来冷却聚合物然后再加热。 此外，熔融相中的反应时间比固相中的反应时间快得多，这也有助于LSPLINE™系统的更好的经济性。
由于再生材料来源复杂，成分难以保证，说明生产过程中熔体的波动。 为了稳定IV，反应器以一定速度运行，以使内部熔体充分混合。
去除杂质
因为PET在高真空状态下进行再聚合，所以原料和助剂中包含的低分子材料将在高温下蒸发。
分子链增长
原料中仍然有大量的羟基和羧基分子，催化体系仍然有效。 在一定的温度和真空状态下仍会发生聚合反应，分子链和Ⅳ会增加。
LSP 多重过滤系统
挤出后的第一熔体过滤器可以过滤无机杂质，并促进进一步的反应。
反应期间
在高真空条件下，低聚物和分解的气体从熔体中分离出来，并进入真空系统。
反应后
高粘度熔体通过最后的熔体过滤器和无机杂质仍然保留在熔体中的物质将被过滤。
LSP 高品质产品
高纯度
经过多次过滤和均质后，回收的聚酯熔体具有更高的纯度和IV，最终产品的颜色更加均匀。
高强度
在高温和真空聚合反应下，分子链和IV不断增加，并且所生产的聚酯产品的强度也更好。
LSP反应器创新
均质粘度反应器的内部结构类似于最终聚合锅的连续聚合单元，均采用卧式聚合锅。卧式反应器内部结构分为盘式和笼式两种，盘式反应器表面积较小，成膜效率较低，且有中心轴，容易产生挂料现象；笼式反应器表面积较大，成膜效率较高，且无中心轴连接，不存在挂料现象。我公司采用自主研发的笼式反应器，成膜效果好，聚合效率高，可缩短反应时间。
无轴设计
独特的无轴设计使熔融成膜反应更加顺畅，避免了材料积聚的风险。
反应面积更大
反应面积越大，净化效果越好，IV增加效果更好，反应后纯度更高。
反应时间短
创新的筛孔设计可使熔体流动更加顺畅，从而使液位控制更加稳定，并且可以将液位控制在非常低的水平，从而缩短了熔体反应时间，并改善了最终产品的颜色。
FAQ
Q1. What is LSP liquid-phase viscosity enhancement technology? How does it differ from traditional SSP solid-phase viscosity enhancement?
A: LSP (Liquid State Polymerization) liquid-phase viscosity enhancement technology directly performs viscosity enhancement treatment in the molten state of PET. Compared to traditional SSP (Solid State Polymerization) solid-phase viscosity enhancement, which takes more than ten hours, ACERETECH's LSP system can significantly increase the IV value (intrinsic viscosity) in just a few tens of minutes. This technology effectively removes impurities, reduces acid value, and improves particle transparency, making it a more efficient choice for producing high-performance R-PET fibers, packaging straps, and bottle-grade chips.
Q2. Can the R-PET pellets produced by the ACERETECH LSP PET recycling line directly meet food-grade standards?
A: Yes. ACERETECH's LSP system has excellent decontamination capabilities, effectively removing volatile organic compounds (VOCs) from the PET melt. This equipment is specifically designed for the production of high-quality R-PET, and its output pellets have excellent color stability (L value) and extremely low acetaldehyde content, meeting the stringent requirements of food-grade packaging, filament fibers, and high-performance engineering plastics.
Q3. What are the capacity and energy efficiency performance of this LSP PET recycling and granulation system?
A: Our LSP PET recycling line achieves integrated continuous production from waste materials to high-performance pellets. By eliminating the cooling and reheating processes in the traditional SSP process, LSP technology significantly reduces unit energy consumption (kWh/ton). The system supports customized configurations, with capacities ranging from 500kg/h to 3000kg/h, helping recycling companies increase the added value of R-PET while significantly reducing operating costs (OPEX).
Q4. How does the LSP system precisely control the IV value (intrinsic viscosity) of R-PET?
A: ACERETECH's LSP system precisely controls the increase in IV value by accurately adjusting the vacuum degree in the reaction tank, the melt residence time, and the stirring speed. Whether producing high-toughness strapping (High IV) or fine denier filaments (Stable IV), the system provides a very narrow IV value distribution range, ensuring the stability and consistency of downstream product production.
Q5. Why is investing in LSP equipment more competitive than traditional equipment in the R-PET market in 2026?
A: With increasing global demands for reduced carbon footprints and a circular plastics economy, the demand for high-quality R-PET is surging. LSP technology, with its extremely short processing time, lower energy consumption, and superior product quality, is rapidly replacing traditional recycling processes. Investing in ACERETECH's LSP production line will not only shorten the return on investment (ROI) period but also allow companies to meet sustainability regulations (such as the EU plastics tax) while securing a leading position in the high-end R-PET supply market.
