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1 – 10 of 231
Article
Publication date: 1 January 1972

P.G. Garrett

Although the technique of electron curing has been well developed, there are very few suitable coatings available.

Abstract

Although the technique of electron curing has been well developed, there are very few suitable coatings available.

Details

Pigment & Resin Technology, vol. 1 no. 1
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 12 August 2019

Abdelrahman Moukhtar Naser, Hamada Abd El - Wahab, Mohamed Abd El Fattah Moustafa El Nady, Abdelzaher E.A. Mostafa, Long Lin and Ahmed Galal Sakr

This paper aims to investigate the best methods of utilisation of reclaimed asphalt pavements (RAP) in Egypt, to determine the effect of using 100% RAP instead of using virgin…

196

Abstract

Purpose

This paper aims to investigate the best methods of utilisation of reclaimed asphalt pavements (RAP) in Egypt, to determine the effect of using 100% RAP instead of using virgin aggregates and asphalt; investigate the effect of thermoplastic elastomer polymer as asphalt modifier; and also improve the mechanical and physical characteristics and consequently improving the quality of asphalt paving, increasing service life of asphalt-paving and reducing costs.

Design/methodology/approach

Nano acrylate terpolymers were prepared with different % (Wt.) of and were characterised by Fourier transforms infrared (FTIR), for molecular weight (Mw), by thermo gravimetric analysis (TGA) and by transmission electron microscopy (TEM). A 4% (Wt.) of the prepared nanoemulsion terpolymer was mixed with virgin asphalt as a polymer modifier, to improve and reuse of the RAP. The modified binder was tested. The tests conducted include penetration, kinematic viscosity, softening point and specific gravity. Application of Marshall mix design types; hot mix asphalt (HMA), warm mix asphalt (WMA) and cold in place recycled (CIR). Four different mix designs used; control mix contained virgin asphalt by HMA, and the other three mix designs were polymermodified asphalt sample by HMA, WMA and CIR.

Findings

The research results showed that using 4 Wt.% of the prepared nanoemulsion terpolymer to produce hot mix asphalt (HMA) and warm mix asphalt (WMA) achieved higher stability compared to the control mix and cold in place recycled (CIR).

Research limitations/implications

This paper discusses the preparation and the characterisation of nanoemulsion and its application in RAPs to enhance and improve the RAP quality.

Practical implications

Nano-acrylate terpolymer can be used as a new polymer to modify asphalt to achieve the required specifications for RAP.

Originality/value

According to the most recent surveys, Europe produced 265 tonnes of asphalt for road applications in 2014, while the amount of available RAP was more than 50 tonnes. The use of RAP in new blended mixes reduces the need of neat asphalt, making RAP recycling economically attractive.

Article
Publication date: 1 November 1983

Americus

Acrylic resins are formulated into protective coatings in several ways. Most important volumewise are waterborne formulations based either on pure acrylics or on acrylic‐vinyl…

Abstract

Acrylic resins are formulated into protective coatings in several ways. Most important volumewise are waterborne formulations based either on pure acrylics or on acrylic‐vinyl copolymers. Second most important are solvent‐based enamels and lacquers widely used for product finishes particularly in the automotive and appliance industries. An innovation of a decade or so ago is proving popular in this area, namely two component coatings based on hydroxyl‐containing acrylics and di‐ or polyisocyanates. These combine many of the good features of acrylics and urethanes and provide hard thermoset coatings. Yet they cure at temperatures as low as ambient.

Details

Pigment & Resin Technology, vol. 12 no. 11
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 December 2001

W.I.A. El‐Dougdoug and M.M. Azab

A series of polymeric surfactants based on butylacrylates (M1) as hydrophobe, and amide oxime of oxypropylated acrylates (M2‐4 and 6) as hydrophiles, were prepared by…

Abstract

A series of polymeric surfactants based on butylacrylates (M1) as hydrophobe, and amide oxime of oxypropylated acrylates (M2‐4 and 6) as hydrophiles, were prepared by copolymerization of butyl acrylate (M1) and amide oxime of oxypropylated acrylate (M2‐4 and 6) with different molar ratios in presence of benzoyl peroxide as initiator to afford [(P2), (P4) and P6)]a‐i, respectively as nonionic copolymeric surfactants, in suitable yield. These derivatives were purified and characterized by microanalysis, IR and 1H NMR spectral studies. Surface active properties, corrosion inhibitions and biodegradability were evaluated.

Details

Pigment & Resin Technology, vol. 30 no. 6
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 1 August 1978

J.K. Haken

The analysis of acetate acrylic and acrylic copolymers systems is described. Much useful information is rapidly obtained by infra‐red spectrophotometry and pyrolysis gas…

Abstract

The analysis of acetate acrylic and acrylic copolymers systems is described. Much useful information is rapidly obtained by infra‐red spectrophotometry and pyrolysis gas chromatography, however quantitative analyses generally require the polymer material to be cleaved by chemical means with subsequent identification of the fragments by gas chromatography.

Details

Pigment & Resin Technology, vol. 7 no. 8
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 9 January 2019

Nikita Mhadeshwar, Kunal Wazarkar and Anagha S. Sabnis

This paper aims to prepare acrylic functional ricinoleic acid monomer and incorporate it in conventional miniemulsion polymerization. Subsequently, paints were formulated to study…

Abstract

Purpose

This paper aims to prepare acrylic functional ricinoleic acid monomer and incorporate it in conventional miniemulsion polymerization. Subsequently, paints were formulated to study the variation in final coating properties.

Design/methodology/approach

Synthesis process involved the esterification of ricinoleic acid with 2-hydroxy methyl methacrylate in the presence of FASCAT-4100 catalyst. The final product of the reaction, methacrylated ricinoleic acid (MRA), was confirmed using Fourier-transform infrared spectroscopy and 1H-nuclear magnetic resonance spectroscopy and determining acid and iodine value. Further, MRA was incorporated in various concentrations (1, 2 and 3 Wt.%) along with methyl acrylate and butyl acrylate in conventional miniemulsion polymerization and paints were formulated thereof.

Findings

It was observed that with the addition of MRA monomer, flexibility of emulsion films increased as indicated by glass transition temperature and elongation value (percentage). Moreover, with the addition of MRA monomer, improvement in mechanical and chemical properties of the coatings was observed.

Research limitations/implications

Even a low concentration MRA monomer (as low as 3 per cent) caused a significant reduction in the glass transition temperature of emulsion films. Thus, it can be efficiently used in applications such as adhesives and elastomeric coatings.

Originality/value

The acrylic functional monomer derived from ricinoleic acid is unique and not yet incorporated in miniemulsion polymerization. The synthesized monomer can be used in coatings where low Tg emulsions are required.

Article
Publication date: 17 February 2021

Botros Meglaa, Magda Tawfik, Fatma Morsy, Samya Elsherbiny and Hisham Essawy

Automotive coating materials are very important items for this industry. However, their performance is limited by the use of excessive amounts of solvents in their formulations…

Abstract

Purpose

Automotive coating materials are very important items for this industry. However, their performance is limited by the use of excessive amounts of solvents in their formulations, whereas the emission of volatile organic solvents is against the widely ascending principle of green chemistry. Thus, this study aims to overcome this global problem to save the environment without affecting the properties and performance of the coating.

Design/methodology/approach

High solid content paint formulation for automotive applications has been designed with low amount of volatile organic solvents with the aid of a functionalized hyperbranched modifier.

Findings

It was found that the presence of a hyperbranched additive allows a high solid content to be designed and facilitate the processing, which indicates its liability to compensate the role played by excessive solvents amounts. In addition, the mechanical properties and physical characteristics of the modified coatings showed outstanding performance and preservation of clarity in comparison with the commercial counterparts.

Practical implications

A high solid content coating with facile processing and improved performance leads to cheaper price beside the positive impact on the environment considering the limited emission of volatile organic contents.

Social implications

Limitation of the used volatile organic compounds in any industry helps to save the health of humans and keep the environment unaffected.

Originality/value

The use of functionalized hyperbranched additive to automotive coatings is a very promising additive for automotive coatings with optimized characteristics.

Article
Publication date: 1 April 1979

Gordon Keith

Developments in acrylic polymer technology over the past few years have led to the possibility today of formulating total paint systems for wood using water based all‐acrylic…

Abstract

Developments in acrylic polymer technology over the past few years have led to the possibility today of formulating total paint systems for wood using water based all‐acrylic coatings.

Details

Pigment & Resin Technology, vol. 8 no. 4
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 September 1986

A new microencapsulation technology has been developed which could prove to change the paint industry in dramatic ways. The invention, entitled Polymeric Encapsulation Process, or

Abstract

A new microencapsulation technology has been developed which could prove to change the paint industry in dramatic ways. The invention, entitled Polymeric Encapsulation Process, or PEP, represents in the inventor's words, ‘a mechanism for in situ microencapsulation of discrete water insoluble solid particles by conventional emulsion polymerisation techniques.’

Details

Pigment & Resin Technology, vol. 15 no. 9
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 January 1995

BIP of Oldbury in the West Midlands and part of T&N plc for over 30 years, celebrates its centenary this year. Now two sister companies, BIP Plastics and BIP Speciality Resins…

Abstract

BIP of Oldbury in the West Midlands and part of T&N plc for over 30 years, celebrates its centenary this year. Now two sister companies, BIP Plastics and BIP Speciality Resins share the 11 hectare site straddling Tat Bank Road and bordered by Popes Lane and Rood End Road.

Details

Pigment & Resin Technology, vol. 24 no. 1
Type: Research Article
ISSN: 0369-9420

1 – 10 of 231