Data on polypropylene plastics, specifications for polypropylene plastics

Commonly used such as Sinopec's PPV30G

Melt flow rate ---16

Tensile yield strength --- 33 32 31MPa

Flexural modulus--- 1350 1300 1250MPa, Rockwell hardness--- 85 85 80r

Thermal performance.

Heat deflection temperature--- 85 85 80

Other features. Isometric index--- 94-97 94-97 94-97% powder ash.

Cleanliness --- 5 10 20

General performance. Crystallinity 50-70%.

Melting point 164-170

Decomposition temperature" 300

Density molding shrinkage.

Long-term use temperature 100-120

Glass transition temperature -10

This week, the overall operating rate of plastic weaving enterprises above designated size was stable at 48%, 7% lower than the same period last year. During the week, the performance of factory order follow-up was average, the inventory of raw materials decreased, and the inventory of finished products did not change much. It is expected that the first factory will start in a narrow range.

What data? Processing temperature? Crystallinity? Ingredients? Or experimental data?

There are too many grades of polypropylene, and each data is different, and what kind of data do you need?

Summary. Hello dear, happy to serve you.

Polypropylene is a thermoplastic resin made by propylene polymerization, which is a white waxy material with a transparent and light appearance.

Polypropylene is divided into three types: isometric polypropylene, random polypropylene and intercommodative polypropylene according to the methyl arrangement. [1] It is widely used in the production of fiber products, medical equipment, automobiles, chemical containers and other products, and is also used in the packaging of food and medicine.

Hope it helps.

Polypropylene plastic specifications.

Hello dear, it's a pleasure to serve you, polypropylene is a thermoplastic resin made by propylene polymerization, which is a white waxy material with a transparent and light appearance. According to the methyl arrangement, polypropylene can be divided into three types: isometric polypropylene, random polypropylene coarse and simplified polypropylene. [1] It is widely used in the production of fiber products, rock stalls, medical equipment, automobiles, chemical containers and other products, and is also used in the packaging of food and medicine.

What is the melt flow index?

Good. The polypropylene melt flow index is.

Polypropylene is plastic.

Polypropylene plastic is a thermoplastic resin made of propylene polymerization, often referred to as PP plastic. In terms of methyl arrangement, it can be divided into three types, namely, incommodal polypropylene, random polypropylene, and isometric polypropylene. It is usually a translucent colorless solid, non-toxic and odorless.

The structure is regular and highly crystalline, resulting in a high melting point of 167. Corrosion resistance, heat resistance, solvent resistance, oil resistance, weak acid resistance, weak alkali resistance, etc., the products can be sterilized with steam is a prominent advantage.

In addition, it also has high hardness and rigidity, low density, light weight, high creep resistance, stress relaxation ability, excellent self-lubricating trouser slip, wear resistance, and fatigue, which is incomparable with other engineering plastics. However, it is not resistant to low temperatures, has poor impact resistance, and is prone to aging.

Applications of polypropylene:

1. Woven products.

PP resin consumed in woven products has always accounted for a high proportion in China, and it is the largest market for the consumption of polypropylene in China, mainly used for the packaging of grain, fertilizer and cement. China is the world's largest producer and consumer of plastic woven products, and it is the world's most potential plastic knitting production market and consumer market.

2. Injection molded products.

Injection molded products are mainly used in small household appliances, daily necessities, toys, washing machines, automobiles and turnover boxes. In recent years, the proportion of consumption in the field of injection molding has risen rapidly, from 17% in 2006 to 22% in 2011, ranking second only to plastic weaving.

The above content reference: Encyclopedia - polypropylene.

Although polyethylene and polypropylene materials can be made into plastics, there is still a certain gap between them in terms of use and composition. Most of the polypropylene plastics we can come into contact with are products with relatively regular structure and large crystallization strength, which have played a great role in many fields and still have a very good competitive advantage compared with polyethylene plastics. Attack to accompany teasing.

a) Characteristics of polypropylene plastic.

Polypropylene plastic is a tasteless, non-toxic material to the human body, its strength, stiffness and hardness are very good, but also because of its characteristics, its bending resistance and fatigue resistance are very large. Moreover, the electrical properties and high-frequency insulation of polypropylene plastic are also very good, and it is less affected by the outside world when it is used, even in the case of poor humidity and temperature, it can also play its own characteristics well. In addition, it is very resistant to corrosion, so it is processed into a lot of insulating parts and tableware and other products.

2) The role of polypropylene plastics.

Polypropylene plastic has good flexibility, while low-density polypropylene plastic has good transparency and softness, and high-density polypropylene plastic is relatively hard. Therefore, we can see more household products such as handbags, buckets, oil drums, beverage bottles, and plastic bowls for meals made of polypropylene plastic in our lives.

Some types of polypropylene plastics can be processed and mixed to make outdoor products and daily necessities with very good performance. For example, car bumpers, woven bags, and plastic films.

There is a type of polypropylene plastic that is transparent when it is not colored, and it has a strong hardness, and even has a crisp sound of metal when beaten. Therefore, they are often made into pipe-type trembling products such as plates, pipes, doors and windows, and wire sheaths.

3) Characteristics of polypropylene plastic molding.

It has good fluidity, but the scope of shrinkage and enlargement is relatively large, and it is prone to shrinkage porosity and deformation.

It cools relatively quickly, special attention should be paid to the temperature when molding, and the temperature of the mold should be 50 degrees Celsius when the plastic will have good smoothness, and when the temperature rises to more than 90 degrees Celsius, it is prone to bending and deformation.

Polypropylene plastic has a very good practicability, and it has been warmly welcomed and used in engineering, packaging, automobiles, household appliances and pipes. Moreover, its excellent performance has been recognized and praised by people, and the development speed and development form in the market are also very worthy of people's attention to auction.

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1. Woven products: PP resin consumed by woven products has always accounted for a high proportion in China, and is the largest market for polypropylene consumption in China, mainly used for the packaging of grain, fertilizer and cement.

2. Injection molded products: Injection molded products are mainly used in small household appliances, daily necessities, toys, washing machines, automobiles and turnover boxes. In recent years, the proportion of consumption in the field of injection molding has risen rapidly, from 17% in 2006 to 22% in 2011, second only to plastic weaving.

3. Film products: polypropylene film mainly includes BOPP, CPP, ordinary packaging film and finger noise microporous film, etc., BOPP has many excellent characteristics such as light weight, high mechanical strength, non-toxic, transparent, moisture-proof, etc., and is widely used in packaging, electrical, electronic appliances, tape, label film, film, composite and many other fields, among which the packaging industry is the most used.

4. Fiber products: Polypropylene fiber refers to a fiber product made of polypropylene as raw material through melt spinning. Because polypropylene fiber has many excellent properties, it is increasingly widely used in the three major fields of decoration, industry and clothing, and has become the second largest variety of synthetic fibers.

Plastic is not a single ingredient, it is formulated from many materials. In addition, in order to improve the performance of plastics, various auxiliary materials such as fillers, plasticizers, lubricants, stabilizers, colorants, antistatic agents, etc., can become plastics with good performance.

Plastic additives, also known as plastic additives, are some compounds that must be added to polymers (synthetic resins) when they are molded to improve their processing performance or to improve the properties of the resin itself.

For example, plasticizers added to reduce the molding temperature of PVC resin and make the product soft; For example, in order to prepare foam plastics with light weight, vibration resistance, heat insulation and sound insulation, foaming agents should be added; The thermal decomposition temperature of some plastics is very close to the molding processing temperature, and it cannot be molded without adding heat stabilizers. Therefore, plastic additives occupy a particularly important position in plastic molding and processing.