Полипропилен pp пластиковые гранулы/Смола инъекционная оценка виргинские PP гранулы

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Характеристики

Product Description:

Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications including packaging and labeling, textiles (e.g., ropes, thermal underwear and carpets), stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes. An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids.
Polypropylene has a relatively slippery "low energy surface" that means that many common glues will not form adequate joints. Joining of polypropylene is often done using welding processes.
In 2013, the global market for polypropylene was about 55 million tonnes. Polypropylene is the world's second-most widely produced synthetic plastic, after polyethylene.

 

Polypropylene (PP) products use grade :  

1). Film Grade
- Biaxial Orientation Stretching Polypropylen (BOPP) : mainly used in the production of high-stiffness, hightransparence packaging film. It is also widely used in the production of printing and laminated film, Matt film, pearlized film, synthetic paper, cigarette film, etc
- Casting Polypropylene(CPP): It is also widely used as the packing for clothing, stationery, food, medicine, cosmetics, textiles, etc.

2). Injection Molding Grade
- PP Impact Copolymer : widely used in the production of industrial products, such as dashboard, auto interior decorations, auto bumpers, interior and exterior parts of washing machine, accumulator containers and tanks. can also be used to make household articles, such as bottle caps, cookware, furniture, toys, toolkits, travel cases, bags and various packaging containers.
- PP Random Copolymer: widely used in the production of medical appliances with high transparence, such as medical syringes, medical infusion bottles, medical centrifuge tubes and sample tubes. It is used in the production of food containers, stationery, packaging materials and houseware.
- PP Homopolymer: widely used in the production of small electrical household appliances, such as electric kettles, electric utensils, electric irons, air heaters, electric hair dryers, electric toasters and electric hand dryers.

 

3). Pipe Grade
PP Pipe Grade mainly used in the production of pipes used in building water supply systems, heating systems and chemical piping systems. Finished Products by light weight, corrosion resistance, long service life,thermal retardation and recyclable processing scrap.

4). Fiber Grade
PP Fiber Grade widely used in the production of bulked continuous filament (BCF), fine and superfine staple fiber, cigarette filter tow and superfine non-woven fabric in high-speed and ultrahigh-speed spinning and spunbonded non-woven fabric production.

5). Yarn Grade
PP Yarn Grade widely used in the production of woven bags, colored stripe cloth for sunlight shading or covering use, carpet backing (base fabric), container bags, tarpaulin and ropes.

6). Coating Grade
PP Coating Grade is mainly used for coating woven bags, tarpaulin, colored stripe cloth and pipes.

7). Powder Grade
PP powder grade is mainly used to produce general-purpose products such as ropes, woven bags, packaging tapes, toys, daily necessities and non-woven fabric.

 

 

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Polypropylene Granules

PP(Polypropylene)granules is a nontoxic, odorless, odorless, tasteless, creamy, high crystalline polymer with a density of only 0.90 --" 0.91g /cm3, "one of the lightest plastics available. It is particularly stable for water, with a water absorption rate of 0.01% and a molecular weight of about 81,150,000. Good molding performance, but due to large shrinkage rate (1%~2.5%), thick wall products are easy to sag, it is difficult to meet the requirements for some parts with high dimensional precision, and the surface of products is glossy.

Name	Polypropylene PP Granules
Feature	Colorless, odorless, non-toxic, translucent solid substance
Characteristics	Thermoplasticity, light specific gravity, chemical resistance
Application	Widely used in the textile, packaging,electrical household appliances, automobile and real estate industries.

 

PP H9018	Test Condition	Text Method	Value	Unit
Basic Properties
Melt Flow Index		GB/T 3682-2000	54	g/10 min
Isotactic Index		GB/T 2412-2008	≥97	%
Ash Content		GB/T 9345.1-2008	≤0.04	%
Mechanical Performance
Tensile Strength		GB/T 1040.2-2006	≥39.1	MPa
Flexural Modulus		GB/T9341-2008	≥1819	MPa
Thermal Performance
Vicat Softening Point		GB/T 1633-2000	≥152	°C
Charpy impact strength		GB/T 1043.1-2008	≥2.4	kJ/m²
Rockwell Hardness	R	GB/T 3398.2-2008	≥104

 

PP Polypropylene is a polymer formed by addition polymerization of polypropylene. It is a white waxy material with a transparent and light appearance. The chemical formula is (C3H6)n, the density is 0.89~0.91g/cm3, It is flammable, with a melting point of 189ºC, softening at about 155ºC, and the use temperature range is -30~140ºC . It is resistant to corrosion by acids, alkalis, salt solutions and a variety of organic solvents below 80°C, and can be decomposed under high temperature and oxidation. 

PP Features
1. The relative density is small, only 0.89-0.91, which is one of the lightest varieties in plastics.
2, good mechanical properties, in addition to impact resistance, other mechanical properties are better than polyethylene, molding processing performance is good.
3. It has high heat resistance and the continuous use temperature can reach 110-120 °C.
4, good chemical properties, almost no water absorption, and does not react with most chemicals.
5, the texture is pure, non-toxic.
6, electrical insulation is good.

Specification:

Number	Project		Unit	H40S	Test value	Test Methods
1	Melt mass-flow rate(MFR)	Nominal value	g/10min	37	37.3	GB/T 3862
		Deviation		±37
2	Isotactic index		%	>=96.0	97.51	GB/T 2412
3	Particle appearance	Color grain	Pc/kg	<=5	0	SH/T 1541-2006
		Black grain	Pc/kg	0	0
		Large and small grains	g/kg	<=100	0.1
		Snake skin grains and trailing grains	Pc/kg	report	25
4	Impurities and others		Pc/kg	no	no	SH/T 1541-2006
5	Ash		%	<=0.030	0.014	GB/T 9345.1
6	Tensile properties	Tensile modulus of elasticity(Et)	MPa	>=1200	1250	GB/T 1040
		Tensile yield stress(σ y)	MPa	>=30.0	30.9
		Tensile stress atbreak(σ B)	MPa	>=8.0	20.7
		Nominal tensile strain at break(ε tB)	%	>=200	566
Test conclusion	Qualified

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