Polymethyl methacrylate (PMMA)

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Product Details:

Storage Store in a cool, dry place away from direct sunlight and heat sources
Shelf Life Indefinite if properly stored
HS Code 39069090
Purity >99%
Poisonous Non-poisonous
Taste Odorless, tasteless
Molecular Weight Varies (Typically ~100,000 g/mol as polymer)
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Polymethyl methacrylate (PMMA) Price And Quantity

Thermal Conductivity 0.19 W/mK
Hardness (Rockwell) M 90105
UV Resistance Excellent; does not yellow easily
Processing Temperature 200C 250C (extrusion/molding)
Glass Transition Temperature ~105C
Water Absorption ~0.3% (24h, 23C)
Flammability Flammable, burns with a blue flame
Impact Strength ~16 kJ/m (Notched Izod)
Tensile Strength ~5075 MPa
Light Transmission >92%
Flexural Strength ~90120 MPa

Polymethyl methacrylate (PMMA) Product Specifications

Taste Odorless, tasteless
Poisonous Non-poisonous
Molecular Weight Varies (Typically ~100,000 g/mol as polymer)
Refractive Rate ~1.49
Appearance Transparent or translucent solid
Grade Industrial, Optical, Medical
Storage Store in a cool, dry place away from direct sunlight and heat sources
Shelf Life Indefinite if properly stored
Purity >99%
HS Code 39069090
Usage Used where clarity, strength, and weather resistance are required
CAS No 9011-14-7
EINECS No 202-818-5
Smell Odorless
Solubility Insoluble in water, soluble in organic solvents (e.g., acetone, chloroform)
Application Optical lenses, displays, automotive parts, signage, medical devices, barriers, lighting, glazing
Molecular Formula (C5O2H8)n or (C5H8O2)n
Properties High transparency, excellent weather resistance, impact resistance, good UV stability, lightweight, non-toxic, electrical insulator
Shape Granules, Sheets, Pellets, Blocks
Melting Point 160C - 200C
Product Type Polymer (Thermoplastic)
Structural Formula [-CH2-C(CH3)(COOCH3)-]n
Ph Level Neutral (pH 7 in aqueous extract)
Ingredients Polymethyl methacrylate
Density 1.20 Gram per cubic centimeter(g/cm3)
Physical Form Solid (Granules, Sheets, Pellets, Powder)

Thermal Conductivity 0.19 W/mK
Hardness (Rockwell) M 90105
UV Resistance Excellent; does not yellow easily
Processing Temperature 200C 250C (extrusion/molding)
Glass Transition Temperature ~105C
Water Absorption ~0.3% (24h, 23C)
Flammability Flammable, burns with a blue flame
Impact Strength ~16 kJ/m (Notched Izod)
Tensile Strength ~5075 MPa
Light Transmission >92%
Flexural Strength ~90120 MPa

Product Description

Polymethylmethacrylate (PMMA)

Typical specification

Characteristic	Test method	Item	Standard
Melt Flow Rate (230C/3.8 kg)	ASTM D 1238	G/10 MIN	3.7
Specific Gravity	ASTM D792	-	1.19
Mold Shrinkage	ASTM D955	%	0.2-0.6
Water Absorption (24 hr immersion)	ASTM D570	% WEIGHT GAIN	0.3
Tensile Strength at maximum	ASTM D638	PSI	10.200
Tensile Elongation at Break	ASTM D638	%	6
Tensile Modulus	ASTM D638	PSI	450.000
Flexural Strength at maximum	ASTM D790	PSI	15.000
Rockwell Hardness, Scale M	ASTM D785	-	93
HDT (High Deformation Temperature) (0.455 MPA; annealed)	ASTM D648	F	221
HDT (High Deformation Temperature) (1.82 MPA; annealed)	ASTM D648	F	216
Vicat Softening Point (50C/hr; 10N)	ASTM D1525	F	232
Vicat Softening Point (50C/hr; 50N)	ASTM D1525	F	219
Thermal Conductivity	ASTM C177	BTU/HRFT2F/IN	1.3
Flammability	ASTM UL94	CLASS	HB
Refractive Index (Nd at 72 F)	ASTM D542	-	1.49
Luminous Transmittance (0.125 in/3.2 mm)	ASTM D1003	%	92
Haze (0.125 in/3.2 mm)	ASTM D1003	%	<1

Exceptional Optical and Mechanical Properties

PMMA stands out due to its high light transmission rate, surpassing 92%, and sturdy mechanical performance with notable tensile and flexural strength. Its refractive index of about 1.49 makes it ideal for demanding optical applications, providing both clarity and toughness for displays, lenses, and windows.

Superior Weather and UV Resistance

One of PMMAs defining features is its excellent resistance to UV light, which prevents yellowing and material degradation over time. This property ensures reliability in outdoor and exposed environments, maintaining transparency and mechanical integrity in barriers, signage, and automotive components.

Safe, Versatile, and Reliable Solutions

PMMA is an odorless, non-toxic polymer suitable for various applications, including medical devices and food contact situations. Its solid form factor (sheets, pellets, granules) and neutral pH facilitate safe handling and long-term storage, offering indefinite shelf life when protected from heat and direct sunlight.

FAQs of Polymethyl methacrylate (PMMA):

Q: How is PMMA typically processed into finished products?

A: Polymethyl methacrylate is commonly processed using extrusion or molding techniques at temperatures between 200C and 250C. These methods allow the material to be shaped into sheets, pellets, or other forms, depending on the intended application.

Q: What are the main benefits of using PMMA in optical and medical applications?

A: PMMAs high transparency, excellent impact strength, and resistance to UV degradation make it ideal for optical lenses, displays, lighting components, and medical devices. It maintains clarity over time and is safe for use due to its non-toxic, odorless, and tasteless nature.

Q: When should PMMA be chosen over glass or other plastics?

A: PMMA is preferred in applications requiring lightweight materials with high optical clarity, reliable weather resistance, and strong impact strength. Its resistance to yellowing and durability make it suitable for outdoor signage, automotive glazing, and protective barriers where glass or other plastics may not perform as well.

Q: Where can PMMA be stored to preserve its quality?

A: PMMA should be stored in a cool, dry place, away from direct sunlight and heat sources. Proper storage helps maintain its transparency, mechanical properties, and extends shelf life indefinitely.

Q: What is the process for recycling or disposing of PMMA?

A: PMMA can be mechanically recycled, but should not be incinerated due to its flammable nature and blue flame combustion. It is insoluble in water but dissolves in organic solvents. Always dispose of PMMA in accordance with local regulations to minimize environmental impact.

Q: What safety measures should be taken while handling PMMA?

A: While PMMA is non-poisonous and safe to handle, it is flammable and should be kept away from open flames or high heat sources. When processing, ensure proper ventilation to avoid inhaling any fumes from organic solvents.

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