Limonene needed in recycling foamed polystyrene was extracted from the ear of schizonepeta tenuifolia using ligroin.
本文研究从荆芥穗中提取回收聚苯乙烯所需的柠檬烯，其方法是溶剂萃取。
The optimum conditions for the technological process of recovering styrene monomer from foamed polystyrene were found.
通过实验对发泡聚苯乙烯热解回收苯乙烯单体的工艺流程提出了优化操作条件。
Mixing the polymer into mortar can improve the interface bonding performance between mortar and foamed polystyrene block.
在砂浆中掺加高分子聚合物，以提高砂浆与发泡聚苯板的界面结合性能。
This paper introduces the production technology, properties and applications of foamed polystyrene concrete mainly with discarded foamed polystyrene plastics and cement.
本文介绍了以废弃的聚苯乙烯泡沫塑料和水泥为主的聚苯乙烯泡沫混凝土的生产工艺、性质及应用。
The experimental study on the structural and material property of masonry walls constructed by the composite hollow concrete small blocks with foamed polystyrene is presented in this paper.
本文研究的对象为由江苏省建设厅资助的由南京工业大学承接的带有聚苯层的复合混凝土小型空心砌块，主要的研究内容为这种砌块的基本性质和力学性能。
Styrene is an important material for many chemical productions in industry. Foamed polystyrene has been used to produce disposable table ware, and there are also some arguments about its USES.
苯乙烯是重要的化工原料，可以生产多种产品，其中一次性泡沫包装和饭盒用途较大并存在着较大的争议。
So, polystyrene foamed plastic and polyurethane hard foam to the flame retardant function to ensure the whole system how much the fire prevention safety?
那么，聚苯乙烯泡沫塑料和聚氨酯硬质泡沫材料的阻燃机能达到何等程度才能保证整个体系的防火安全？
Polystyrene foamed plastic and polyurethane hard foam is the influence of the thermal insulation system of fire prevention safety factors of the functioning of the hub.
聚苯乙烯泡沫塑料和聚氨酯硬质泡沫是影响外保温体系防火安全机能的枢纽因素。
Whether to need in the existing technology premise too much progress polystyrene foamed plastic and polyurethane hard foam flame retardancy index?
是否需要在现有的技术前提下过多地进步聚苯乙烯泡沫塑料和聚氨酯硬质泡沫的阻燃性指标？
Another kind is thermoplastic polystyrene foamed plastic thermosetting and rigid polyurethane foams primarily organic heat preservation material, usually identified as combustible materials.
另一类是以热塑性聚苯乙烯泡沫塑料和热固性聚氨酯硬泡为主的有机保温材料，通常认定为可燃性材料。
Polystyrene foamed plastics and GR6 used to cover the surface of grain bulk for insulation heat were tested.
本试验选用聚苯乙烯泡沫塑料和GR6作为隔热材料进行粮面压盖隔热保冷试验。
The reclamation and recycle of polystyrene foamed plastic waste not only can control pollution but also solve the problems of chemical energy sources.
将废弃的聚苯乙烯泡沫塑料回收利用既可解决它所带来的污染，又可缓解化工能源不足问题。
In this paper the recycle of polystyrene foamed plastic waste was studied.
本文对废旧聚苯乙烯泡沫塑料的再生利用进行了研究。
This article introduces the characteristics and development of light concrete mode from waste foamed plastics of polystyrene and other mixers, and analyzes its production cost.
文中介绍了利用废聚苯乙烯泡沫与其它掺合料制作轻质砼的试验及性能，并对其生产成本作了分析。
The heat insulating layer may be polystyrene particle layer, foamed polyurethane layer, foamed glass layer, polystyrene board, etc.
保温层可以是胶粉聚苯颗粒保温层、聚氨酯发泡层、泡沫玻璃、聚苯板等。
The heat insulating layer may be polystyrene particle layer, foamed polyurethane layer, foamed glass layer, polystyrene board, etc.
保温层可以是胶粉聚苯颗粒保温层、聚氨酯发泡层、泡沫玻璃、聚苯板等。
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