|
|

|
 |
|
|
|
Featured Article
-
Renewable Additives for Adhesives and Sealants
(January 23, 2012)
This article provides an overview of renewable additive materials that are being used and developed for use in biobased adhesives and sealants. The drivers and barriers are also reviewed in an effort...
All Articles
-
Selecting Acrylic Emulsion PSA Dispersion Particle Size Distribution
(Jan 9, 2012)
Until recently the lack of control in emulsion polymerisations has meant that most acrylic PSA formulation knowledge came from solution polymerisation. But recent improvements have meant better...
(2 Member Reactions)
-
Acrylic / Polyurethane Hybrid Waterborne Sealants
(Dec 28, 2011)
This article will first review the advantages of acrylic / polyurethane hybrid waterborne sealant formulations, and the routes to producing a polyurethane / acrylic base polymer system. The article...
(1 Member Reaction)
-
Choosing Tackifiers for PSAs
(Dec 19, 2011)
Glass transition temperature and storage modulus are two essential properties in controlling a pressure sensitive adhesive's performance. Elastomers often don't initially have properties that fit in...
(1 Member Reaction)
-
Plasticization of Polyurethane Adhesives and Sealants
(Dec 13, 2011)
This article will first examine the reasons that external plasticizer modification may not be necessary with polyurethane adhesives and sealants. It will then review the possible value that can be...
(3 Member Reactions)
-
Dehydrogenation Cure Silicones
(Nov 16, 2011)
To date there are no encapsulants that adequately protect UV LEDs without breaking down. Silicones are popular as LED encapsulants, but conventional addition cure formulations form organic crosslinks...
-
Degradation by Hydrolysis
(Nov 9, 2011)
This article will focus on the moisture induced degradation of the bulk adhesive when the degradation is permanent. This is a mechanism known as hydrolysis. It is dependent on the chemical nature of...
-
SEBS for High Performance Hot Melts
(Oct 19, 2011)
The conflict between needs that must be met when designing a hot melt adhesive can lead to a compromise that falls short of meeting any of them comprehensively. For example,...
-
POSS – Nanoreinforcement of Structural Adhesives
(Oct 10, 2011)
This article reviews that status of POSS for use in adhesive systems, primarily epoxy and polyurethane, although POSS has found advantages in other systems as well. The unique physical properties of...
-
Keeping Low-isocyanate Emission Polyurethane Adhesives Flowing
(Sep 14, 2011)
The diisocyanates used to produce polyurethane adhesives can be toxic, and so it's important to reduce the amount that users are exposed to. Polyurethane prepolymers can help achieve this, but usually...
-
Moving more with Less CO2 - Bonding in the Automotive Industry
(Sep 7, 2011)
The motor car has been with us for more than 120 years and today it is hard to imagine life without the motor car. It has transformed our way of life, our landscape, and our outlook. Worldwide it has...
-
Exploiting VAE Technology offers Water-based Adhesive Advantage
(Aug 24, 2011)
How poly(vinyl acetate ethylene) (VAE) emulsions are made has a critical role to play in the properties and cost of the adhesives that they're used to make. While batch reactors are more flexible,...
-
Halogen-Free Flame Retardants for Adhesives
(Aug 12, 2011)
This article examines the external events that are leading to the development of new fire resistant materials and the types of solutions that are seeing commercial acceptance. Flame retardant...
(1 Member Reaction)
-
Low-formaldehyde and Formaldehyde-free Adhesives
(Jul 18, 2011)
Much has been made of recent, more severe changes in formaldehyde regulations as they apply to adhesives. These have been well-covered in previous SpecialChem articles and editorials. However, the...
(1 Member Reaction)
-
Fumed Silica Filler – Why so Popular?
(Jun 20, 2011)
This article will explore why fumed silica is so widely used and valued by the formulator. The origin and various types of fumed silica will be described. The property modifications that are...
(4 Member Reactions)
-
Brightening Solar Encapsulant Performance
(Jun 8, 2011)
In 1990, the solar power industry was hit by concerns about its future due to the "EVA browning crisis". Poly(ethylene-vinyl acetate) (EVA) encapsulants used to protect photovoltaic (PV) cells were...
(2 Member Reactions)
-
The Need for Green Plasticizers in Adhesives and Sealants
(May 23, 2011)
This reviews the requirements for plasticizers in adhesive and sealant formulations and identifies problems that result from conventional plasticizers. The article will then examine the development...
(1 Member Reaction)
-
Making Acrylic Tape Adhesives Stronger
(May 9, 2011)
Some of the technologies used to increase acrylic pressure sensitive adhesives' bond strength have themselves brought problems, in particular causing corrosion. Polar monomers exploited to increase...
(2 Member Reactions)
-
Epoxy Adhesives That Cure Below Freezing Temperatures
(Apr 18, 2011)
This article reviews epoxy adhesive formulations that can be used when cold weather application and cure are required. Curing agents for conventional epoxy resins are discussed as are epoxy acrylate...
(2 Member Reactions)
-
Formulating Anisotropically Conductive Adhesives for Ever-smaller Electronics
(Apr 4, 2011)
While anisotropically conductive adhesives have been in existence for some time, innovation continues apace as higher-resolution displays and slimmer electronics shrink the space between electrodes....
-
Organosilanes – The Original Chemical Bridge
(Mar 21, 2011)
The article reviews the use of organosilanes as adhesive promoters – both as primers and as internal additives in adhesives. The unique chemical structure of the organosilane molecule is examined and...
(1 Member Reaction)
|
|

|