POM Sheet

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MOQ: Default
Port: Hangzhou
Packaging: Customizable
Lead Time: Default
Size: Default Size
Color: Default Color

Place of Origin: Guangzhou, China (Mainland)
Brand Name: Ninge
Model Number: plastic sheet
Material: heat resistant plastic sheet
Thickness: Customized
Size: Custom Size
Item: for heat resistant plastic sheet
free sample: available
Color: Black /white /red
Certificate: ISO9001
Feature: Eco-Friendly
Density: 1.5g/cm3
shape: Sheet
warranty: yes
Package: wooden box
Tensile Strength: Strong

POMC sheet :thickness :8-120M

Size:600*1200/1000*2000mm

Acetal Delrin Sheet

Acetal resins (polyoxymethylene or POM) are engineering thermoplastics based on formaldehyde polymerization technology. Acetal resins have high tensile strength, stiffness, resilience, fatigue endurance, a low coefficient of friction against metals, acetals and other plastics and moderate toughness. The Acetal sheet has high resistance to organic solvents, excellent dimensional stability, a low coefficient of friction and outstanding abrasion resistance among thermoplastics.

Acetals’ resistance to creep is excellent. Moisture, lubricants and solvents including gasoline and gasohol have little effect on this property, which is important in parts incorporating self-threading screws or interference fits. Good electrical properties qualify these materials for electrical applications requiring long-term stability. Acetal copolymers retain much of their toughness through a broad temperature range and are among the most creepresistant of the crystalline thermoplastics. A low moisture absorption characteristic permits molded parts to serve reliably in environments involving humidity variations.

Category: POM (Polyoxymethylene)

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Description:

POM sheet or poly oxy methylene (POM) is a name of popular plastics which are widely used in the engineering world. POM sheets are also known as acetal, polyacetal, and polyformaldehyde.

POM sheets and plates are counted among stiffest of all thermoplastics. They’re generally produced by different chemical firms with slightly different formulas such as; Ramtal, Delrin, Celcon, Duracon, Kepital, and Host form.

Types of Poly Oxy Methylene

The POM sheets are divided into two types;

Homopolymer POM – the process of direct polymerization results in homopolymer. It comprises of higher crystallinity and often results in higher stiffness.

Copolymer POM – Copolymer is created when formaldehyde is converted to trioxane. This procedure is totally polymerized together with a co-monomer, to a POM copolymer (e.g. Host shape).

It has high chemical resistance, it regularly brings about less warm debasement while generation, and in the field.

Best features of POM sheets

The best features pf POM sheets are given below;

The POM sheet is determined by its hardness, high firmness, high quality, low rubbing, unbending nature to −40 °C, and fantastic dimensional security.
Since it has a high crystalline creation, so it looks murky white, but on the other hand, it’s accessible in another assortment of colors. The most extreme thickness of POM is 1.410– 1.420 g/cm3.
POM sheet is versatile for its diversified engineering applications. Its function works in CNC machining, and POM sheets are also available with an enhanced bearing grade material.

Properties of POM

The few highlighting properties of POM sheets are;

Good resilience
Low water absorption
High stiffness
Low wear

Features

Excellent dimensional stability
Continuous use temperature of 180°F
Porosity free
Consistent properties in wet or moist environments
Very low moisture absorption
Excellent electrical properties
Easy to machine to close tolerances
Natural and Black are FDA & USDA compliant

Applications

Bushings and bearings
Rollers and gears
Valves and manifolds
Scraper blades
Wear strips and pads
Jigs and fixtures
Electrical components
Parts which operate in water between 60 to 90C

Certifications

ASTM POM 0211, D6778
FDA21 CFR 177.2470

PROPERTIES	STANDARD	UNIT	RESULT
mechanical property
Density	ASTM D792	g/cm3	1.43
Tensile strength	ASTM D638	Mpa	100
ultimate elongation	ASTM D638	%	10
bending strength	ASTM 790	Mpa	150
bending modulus	ASTM 790	Mpa	4500
hardness	ASTM D2240	D	85
Impact strength	ASTM D256	J/M	100
Thermal properties
Melting poing	DSC	℃	190
working Temp.	ASTM D648	℃	140
Permanent Temp.	–	℃	120
Short-period Temp.	–	℃	150
Pyroconductivity	DIN 52612-1	W/(K-M)	0.31
dilatation coefficient	ASTM D696	10-5-1/K	6
electrical property
dielectric strength	ASTM D150	KV-mm	22
dielectric loss coefficient	ASTM D150	–	0.005
Volume resistance	ASTM D257	Ω.cm	1014
surface resistance	ASTM D257	Ω	1016
dielectric constant	ASTM D149	–	3.9
Chemical properties
Water absorption	23℃ 60%RH	%	0.35
Acid resistance	23℃ 60%RH		+
Alkali resistance			+
Resistance to acid and alkali water			+
Chloric acid alkali resistance			0
Resistant to aromatic compounds			+
The ketone resistance	23℃ 60%RH		+
Water resistance	23℃ 60%RH		+
Others properties
combustibility	UL 94		HB
paste	–		+
Non-toxic harmless	EEC 90/128 FDA		+
friction coefficient	DIN 53375		–
uvioresistant	–		0