Q:Characteristics of rigid polyurethane foam made of polyurethane raw material

Polyurethane rigid foam is prepared by hard foam polyether polyol (polyurethane rigid foam combination polyether, also known as white material) and polymerized MDI (also known as black material). Mainly used in the preparation of rigid polyurethane foam, widely used in refrigerators, cold storage, spraying, solar energy, thermal pipelines, construction and other fields. According to the use of the field, divided into rigid foam polyether polyol, polyether, wood cyclopentane system hard foam polyether polyol, polyether, flame retardant polyether water. The wood is mainly used for imitation wood product polyether, polyether and water is mainly used for all water pipe foam, flame retardant polyether products for preparation of flame retardant high requirements.

Q:What are the common raw materials used in plastic bottles? What are the main features?

PP bottles are non-toxic, transparent, and have certain heat resistance and impact resistance. They are generally loaded with fruit juice and shampoo. They can be hot filled (very important for fruit juice drinks). They can not be sterilized by pressure cookers, and their transparency is poor.

Q:What is Ms plastic material?

Transparent polymers were synthesized from methyl methacrylate (MMA) and styrene (SM) as the main raw materials.

Q:What does plastic material include?

The main raw material of plastics is oil and natural gas, that is, carbon hydrogen compounds. First, the appropriate large molecules in petroleum and natural gas are extracted, first split into monomers, and then polymerized into polymers to become plastic.

Q:PE plastic bellows raw material formula (PE and PP ratio, as well as other filling)?

The additives are mostly organic additives, and they are usually analyzed by infrared, nuclear magnetic resonance and mass spectrometry. Fillers are mostly calcium carbonate, kaolin and other fillers, play a role in strengthening and reducing costs, and can be qualitatively and quantitatively analyzed by thermogravimetric analysis and fluorescence spectroscopy. After sample pretreatment, a single component, for unknown components need to go through a variety of instruments integrated spectrum, the final reduction formula, get the whole component analysis report.

Q:What is the essential difference between plastic raw materials and engineering plastics?

Plastics can be divided into two major categories: General Plastics and engineering plastics. They are usually granular or powder in order to be easy to process before they are madeGeneral plastics refer to common plastics with large output, wide use, good formability and low price. Such as PVC, polyethylene, polypropylene, polystyrene and so on. Products made of plastic film, pipe, woven bags and plastic daily necessities. The yield and consumption of general-purpose plastics account for more than 80% of all plastics.Engineering plastics refer to plastics that meet the needs of industrial parts. Relatively speaking, they yield large, wide range of applications. Mainly ABS, polycarbonate, nylon, POM, modified polyphenylene ether, thermoplastic polyester and so on. Products have TV casing, plastic gears, optical materials, gaskets and so on.There is also a special engineering plastics, in addition to its characteristics of engineering plastics, its comprehensive performance is higher, long-term use temperature above 150 degrees celsius. It also has special functions and special uses. Mainly used in high-tech industries, such as atomic energy, rockets, satellites, aerospace, automotive, electronic and sports equipment, and other structural materials. Commonly used special engineering plastics are fluorine plastic, silicon resin, polyimide, peek, liquid crystal polymer and so on.

Q:What is the disposable transparent plastic cup?

PMMA: commonly known as acrylic, transparent material, its surface hardness is slightly lower, easy to wipe flowers. It is suitable for making transparent insulation parts and general strength parts

Q:What plastic material is resistant to high temperature?

PPS is a kind of special engineering plastics with excellent comprehensive performance. Dimensional stability of PPS has excellent temperature resistance, corrosion resistance, radiation resistance, flame retardant, balanced and excellent physical and mechanical properties and excellent electrical properties and other characteristics, are widely used as structural polymer materials, by filling after modification, widely used in special engineering plastics. At the same time, it can be made into various functional films, coatings and composite materials. It has been successfully applied in the fields of electronics, electrical appliances, aeronautics and Astronautics, automobile transportation and so on. Domestic enterprises have actively developed and formed a certain production capacity, which changed the situation of relying solely on imports in the past. However, there are still some problems in China's PPS technology, such as low variety of products, high functional products, and urgent expansion of production capacity, which will be the focus of the next development of PPS.

Q:ABS plastic storage conditions

Plastic materials generally react with light and oxygen for a long time to become yellow and brittle

Q:What is the difference between PP raw material and modified PP?

Sort:(1) according to the characteristics of resin when heating and cooling, classification: 1. Thermosetting plastics, two, thermoplastics(2) according to the use of plastics classification: general plastic, engineering plastics, special plastic raw materialsModified PPThe concept of modified plastic PP, refers to the base of the general plastics and engineering plastics, after filling, blending and enhancement processing method of modification, improve the performance of flame retardant plastic products, strength, impact resistance, toughness.Classification: PP modified plastic products are mainly a variety of flame retardant resins, toughening resin, plastic alloy, functional masterbatch etc..