Low-Shrinkage, High-Hardness, and Transparent Hybrid Coatings:  Poly(methyl methacrylate) Cross-Linked with Silsesquioxane

John H. Harreld; Akira Esaki; Galen D. Stucky

doi:10.1021/cm030185j

Low-Shrinkage, High-Hardness, and Transparent Hybrid Coatings: Poly(methyl methacrylate) Cross-Linked with Silsesquioxane

Chemistry of Materials ◽

10.1021/cm030185j ◽

2003 ◽

Vol 15 (18) ◽

pp. 3481-3489 ◽

Cited By ~ 54

Author(s):

John H. Harreld ◽

Akira Esaki ◽

Galen D. Stucky

Keyword(s):

Methyl Methacrylate ◽

High Hardness ◽

Hybrid Coatings ◽

Poly Methyl Methacrylate

Download Full-text

UV-photopolymerisation of poly(methyl methacrylate)-based inorganic–organic hybrid coatings and bulk samples reinforced with methacrylate-modified zirconium oxocluster

Polymer ◽

10.1016/j.polymer.2008.08.005 ◽

2008 ◽

Vol 49 (20) ◽

pp. 4332-4343 ◽

Cited By ~ 33

Author(s):

Francesco Graziola ◽

Fabrizio Girardi ◽

Matthias Bauer ◽

Rosa Di Maggio ◽

Mauro Rovezzi ◽

...

Keyword(s):

Methyl Methacrylate ◽

Hybrid Coatings ◽

Poly Methyl Methacrylate ◽

Organic Hybrid

Download Full-text

Machining of Poly Methyl Methacrylate (PMMA) and Other Olymeric Materials

10.4018/978-1-7998-7864-3.ch016 ◽

2022 ◽

pp. 363-379

Author(s):

Fredrick M. Mwema ◽

Job Maveke Wambua

Keyword(s):

Methyl Methacrylate ◽

Removal Rate ◽

High Hardness ◽

Polymeric Materials ◽

High Strength ◽

Depth Of Cut ◽

Machining Parameters ◽

High Fracture ◽

Poly Methyl Methacrylate ◽

Optical Applications

Polymers have been adopted industrially in the manufacture of lenses for optical applications due to their attractive properties such as high hardness, high strength, high ductility, high fracture toughness, and also their low thermal and electrical conductivities. However, they have limited machinability and are therefore classified as hard-to-machine materials. This study conducts a critical review on the machining of various polymers and polymeric materials, with particular focus on poly (methyl methacrylate) (PMMA). From the review it was concluded that various machining parameters affect the output qualities of polymers and which include the spindle speed, the feed rate, vibrations, the depth of cut, and the machining environment. These parameters tend to affect the surface roughness, the cutting forces, delamination, cutting temperatures, tool wear, precision, vibrations, material removal rate, and the mechanical properties such as hardness, among others. A multi-objective optimization of these machining parameters is therefore required, especially in the machining of PMMA.

Download Full-text