POLYPROPYLENE(PP)

Outline

Stress crushing characteristics·Transparency·Many properties of the CPP(polypropylene), PE(polyethylene), but similar to the tensile strength than PE (polyethylene), and is excellent.

Characteristic

- Lightweight characteristics

Belongs to the plastic of the proportion of small classes.

- PP distinctive characteristics of hinge

Has repeated that "it is stronger in bending hinge characteristics".

- Food hygiene

FDA hygiene compliance.

- Crushing goes well on the stress.

- Good surface appearance

Surface gloss, relatively difficult to wound.

Applications

Automobile parts, household electrical parts, tableware·Stationery Supplies·Tabletop·Office Supplies· Medical courage·Goods flow container, food packaging film, fiber material, Flat Speakers.

Standards

-PP Sheet

PP	Color	Thickness
	White	2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100
	Green	5, 10, 15, 20

-PP Round Rods

PP Round Rods	Color	Diameter(Φ)
	White	10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 250, 300

Data

PP maximum characteristic of a strong, repeated bending hinge, you can make a seamless part of the joint.

At low temperatures compared to the PE susceptible to shock and ultraviolet light.

Category	Section	Unit	Test method ASTM	PP	HDPE
mecha nical pro per ties	Cut Surrender Strength	kg/cm²	D638	330	250
	Break fracture strength	kg/cm²	D638	310
	Break fracture growth	%	D638	>5100	800
	flexural modulus	kg/cm²	D790	17000	11000
	Surface Strength	Rockel	D785	R100	D65
	impact strength	kg.cm/cm Nunchi	D256	3.8	20
	resistance	mg/1000 times	D1044	40
phy sical pro per ties	Specific gravity			0.91	0.96
	coefficient of linear expansion	x10-5/		11	11
	Thermal conductance	kcal/M.Hr.℃		0.12	0.21
	Absorptivity(24Hr underwater)“	%	D570	<0.01	<0.01
	specific heat	kcal/M.Hr.℃		0.46	0.55
	Continuous use temperature	℃		65
	combustibility		D635	1.9~2.1	2.5~2.6