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Acrylic – PMMA

Name: اکریلیک (PMMA) در صنعت پلاستیک خواص، کاربرد و مزایا و معایب
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Acrylic – PMMA

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Acrylic – PMMA

category : polymer
tag : polymer
Production date : 24 اسفند 1403
Dimensions :
type : اکرولیک – PMMA
comments count : 0
price : 3,223 Toman
off : 5%

Product Description

Acrylic (PMMA): Properties, Applications, and Technical Overview

What is Acrylic (PMMA)?

Acrylic, also known as Polymethyl Methacrylate (PMMA), is a transparent thermoplastic often used as a lightweight and shatter-resistant alternative to glass. It is one of the most widely used engineering plastics due to its excellent optical clarity, weatherability, and versatility.

Acrylic is sold under trade names like Plexiglas, Acrylite, Lucite, and Perspex, and it can be found in forms such as sheets, rods, tubes, and films.

Advantages of Acrylic

Acrylic offers numerous benefits that make it a preferred material across multiple industries:

Feature	Description
Weather Resistance	Excellent resistance to UV rays and outdoor elements.
High Optical Clarity	Up to 92% light transmission—more than most glasses.
Chemical Resistance	Good resistance to acids and alkalis.
Impact Resistance	10 times more impact resistant than regular glass.
Thermal Stability	Performs well under high temperatures.
UV Resistance	Does not yellow easily under sunlight exposure.
Hardness	High surface hardness for scratch resistance.
Aesthetic Appeal	Glossy, smooth finish ideal for decorative purposes.

Disadvantages of Acrylic

While acrylic has several strengths, it's important to consider its limitations:

Limitation	Description
Solvent Sensitivity	Weak resistance to strong solvents like acetone.
Environmental Stress Cracking	Susceptible to cracking under mechanical stress.
Limited Flexibility	Not suitable for high-flex applications.
Heat Limitations	Softens around 100–110°C, not ideal for very high heat.

Main Applications of Acrylic

Acrylic is used extensively in both consumer and industrial sectors:

Industry	Application
Automotive	Light covers, dashboards, instrument panels
Medical & Sanitary	Dental prosthetics, medical devices, incubators
Lighting & Optics	LED diffusers, light guides, lenses
Construction	Windows, skylights, safety barriers
Household Goods	Furniture, kitchenware, decorative items
Retail & Signage	Store displays, signboards, menu holders
Art & Design	Frames, sculptures, installations

Available Product Forms

Acrylic comes in various shapes and formats suitable for different machining and fabrication needs.

Product Type	Description
Acrylic Sheet	Flat sheets in multiple thicknesses, clear or colored
Acrylic Rod	Round solid rods, transparent or pigmented
Acrylic Tube	Hollow tubes for fluid and design applications
Welding Rod	Used for joining acrylic components

Technical Specifications of Acrylic

Property	Value
Density	1.18–1.20 g/cm³
Light Transmission	Up to 92%
Heat Distortion Temp.	95–105°C
Tensile Strength	65–75 MPa
Flexural Strength	90–110 MPa
Hardness (Rockwell)	M90–M100
Coefficient of Expansion	7.7 x 10⁻⁵ /°C
Refractive Index	~1.49

FAQs about Acrylic (PMMA)

Is acrylic plastic stronger than glass?

Yes. Acrylic is up to 10 times more impact-resistant than standard glass, making it much safer for certain applications.

Can acrylic sheets be used outdoors?

Absolutely. Acrylic has excellent UV resistance and weatherability, making it perfect for outdoor signage and glazing.

Is acrylic food-safe?

Yes, many acrylic grades are FDA-approved and can be used in food display and packaging.

What’s the difference between acrylic and polycarbonate?

Acrylic is more optically clear and scratch-resistant but less impact-resistant than polycarbonate.

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