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PURSUIT OF CUSTOMER SATISFACTION, WE STRIVE TO ACHIEVE, YOUR INSPIRATION AND DESIGN,OURCOMMITMENT TO INTEGRITY AND QUALITY

Pursuit of customer satisfaction, we strive to achieve, your inspiration and design

Our commitment to integrity and quality

PRODUCT

 

PP (polypropylene)

Polypropylene (PP), commonly known as 100% plastic.
 
According to crystallinity classification: isotactic PP (crystallinity up to 95%, molecular weight 8-150000)
 
Atactic PP (non-crystalline at room temperature, molecular weight 0.3-1 million, less application)
 
 
 
Polypropylene (PP) Characteristics and Applications
 
 
 
1, polypropylene characteristics:
 
(1) Physical properties:
 
a, non-toxic, odorless, tasteless, translucent or transparent particles (powder milky white);
 
b. Density: 0.90 to 0.91 g/cm3;
 
c, water stability: the water absorption in water 24h is only 0.01%;
 
d, molecular weight: between 8 to 150,000;
 
e, good formability, high shrinkage, thick-walled products easy to sag;
 
f, good gloss, easy to color.
 
(2) Mechanical properties:
 
a, high crystallinity, structural regularity: strength and hardness, elasticity are higher than HDPE;
 
b. At room temperature and low temperature: high structural regularity and poor impact strength (when the molecular weight increases, the impact strength also increases);
 
c, anti-bending fatigue: If using PP injection one-piece living hinge, it can withstand 7x107 fold bending without damage;
 
d. Dry friction coefficient: The dry friction coefficient of PP is comparable to that of PA6 (under oil lubrication, it is inferior to PA6).
 
(3) Thermal properties:
 
a. Melting point: 164-170°C
 
b. Heat resistance: Can be disinfected and sterilized at a temperature of 100°C or more, and is not deformed at 150°C without external force.
 
c, embrittlement temperature: -35 °C (cold resistance is not as good as polyethylene).
 
(4) Chemical stability:
 
a. Chemical stability: In addition to being eroded by concentrated sulfuric acid and concentrated nitric acid, it is relatively stable to other chemical reagents.
 
b, softening and swelling: low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons can make PP softening and swelling;
 
(The chemical stability increases with the increase of crystallinity. This property is suitable for making various chemical pipelines and fittings with good anti-corrosion effect).
 
(5) Electrical performance:
 
a、High-frequency insulation performance: excellent (almost no water absorption, insulation performance is not affected by humidity);
 
b, dielectric coefficient: 2.0 to 2.5 (heated electrical insulation products);
 
c, breakdown voltage: 40KV/mm;
 
d, arc resistance: 130s (high static, easy to contact with copper aging).
 
(6) Weather resistance:
 
a, photoaging: PP sensitive to ultraviolet (UV);
 
b. Thermo-oxidative aging: Heat and oxygen accelerate PP aging.
 
 
 
2, polypropylene use:
 
 
 
(1) Film products: PP film products are transparent and shiny, with low permeability to water vapor and air:
 
a, blown film;
 
b. cast film (CPP);
 
c. Biaxially oriented film (BOPP).
 
(2) injection molding products: can be used for automotive, electrical, mechanical, instrumentation, radio, textile, defense and other engineering accessories, daily necessities, turnover boxes, medical and health equipment, building materials.
 
(3) Extrusion products: Pipes, profiles, monofilaments, fishing ropes can be used. Packing straps, tying ropes, woven bags, fibers, composite coatings, sheets, plates, etc. Blow molding hollow products, such as various small containers.
 
(4) Others: Low foaming, calcium plastic board, synthetic wood, laminated board, synthetic paper, high foaming can be used as structural foam.
 
 
 
Modification of isotactic PP (molecular weight 8 to 150,000)
 
 
 
Polypropylene can be modified, filled, reinforced, blended, copolymerized, crosslinked.
 
1. Adding calcium carbonate, talcum powder, inorganic minerals and other fillers can increase rigidity, hardness, heat resistance and dimensional stability;
 
2, adding glass fiber, asbestos fiber, mica, glass beads, etc. can improve the tensile strength, and can improve the creep resistance, low temperature impact resistance;
 
3, adding elastomers and rubber can improve the impact properties, transparency and so on;
 
4, adding carbon fiber (CF) can increase the strength, especially bending modulus.
 
 
 
Material and description:

 

product

product description

Application

Highly transparent PP

High transparency, general impact

Various transparent bottles

High transparency, high impact

Disposable syringe, food box

High transparency, high impact

CD box, window

 

 

 

Enhanced PP

20% barium sulfate (BaSO4) enhanced, high gloss

Appearance of small household appliances: rice cooker assembly, coffee machine, bread machine, electric hot water bottle, microwave oven container; medium-strength structural parts, pump housing cover, pump impeller (ultrasonic, heat-spinning), electrical skeleton, pedals, skates

30% barium sulfate (BaSO4) enhanced, high gloss

20% Talc Reinforced, High Rigidity

30% Talc Reinforced, High Rigidity

20% calcium carbonate (CaCO3) reinforced, high rigidity shoes

30% calcium carbonate (CaCO3) reinforcement, high rigidity

20% glass bead (GS) reinforcement, high surface hardness, scratch resistance

30% glass beads (GS) reinforcement, high surface hardness, scratch resistance

10% glass fiber reinforced, high rigidity

10% glass fiber reinforced, high rigidity

30% glass fiber reinforced, high rigidity, toughening, cold resistance

 

Flame retardant PP

Flame retardant V-0, environmentally friendly, non-filled

Heater before and after the shell, switch parts, capacitor shell, Christmas tree, lamp winding skeleton, electronic appliances

 
Parts, Outdoor Lighting, High Temperature Resistance Area

Flame retardant V-0, environmental protection, non-filled, toughened

Flame retardant V-0, environmental protection, filled type

Anti-UV UV, Flame Retardant V-0

High heat resistance (RTI*140°C*) halogen-free, phosphorus-free, flame-retardant, enhanced

 

Low temperature shock PP

-10°C withstands unconventional impact PP, non-flame retardant

Ice skate parts, handle parts, high-latitude electrical parts, flame-retardant parts, toilet tanks

-20°C withstands unconventional impact PP, non-flame retardant

-30°C withstands unconventional impact PP, non-flame retardant

-20°C withstands unusual impact PP, flame retardant

 

Weather resistant PP

Anti-outdoor (UV)+thermo-oxidative aging, high and low temperature impact

Radome, air-conditioning outdoor unit housing, outdoor billboards, lighting components, indoor and outdoor lighting accessories

Non-filled, anti-UV and thermal oxygen aging

Filled, Anti-UV, Thermal Oxygen Aging

Anti-static, non-filled, anti-UV + thermo-oxidative aging

Filled, Anti-UV, Thermal Oxygen Aging + Light Shielding Stage

 

Note: 1. If you need other specifications, please contact Auto Technology Development Center;
 
    2, in addition to indicate the color, the rest can be dyed according to the requirements;
 
    3, glass fiber reinforced class, according to the requirements of the choice of long fiber or chopped fiber.

PP products

PP products

PP products