Influence of Styrene–Maleic Anhydride Copolymers on the Stability of Quinacridone Red Pigment Suspensions

Zhou, Yu; Yu, Dan; Xi, Ping; Chen, Shui Lin

doi:10.1081/dis-120023821

Cited by 16 publications

(6 citation statements)

References 7 publications

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“…The increase of UMP dosage resulted in lower dyeuptake and more brilliant colors, and dyeing acrylic yarns with UMP (40%, o.w.f) could reach the maximum K/S value. The K/S value of acrylic yarns reduced after adding adhesives, compared to the cationic dyes, the light fastness was improved significantly [58].…”

Section: Dyeing Acrylic Yarns With Cationic Umpmentioning

confidence: 93%

Preparation, Characterization and Application of Ultra-Fine Modified Pigment in Textile Dyeing

Wang¹,

Yin²

2013

Eco-Friendly Textile Dyeing and Finishing

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Water-based pigment systems are environment-friendly pathways. Pigments are dispersed into water with the aid of auxiliaries, such as dispersants, emulsifiers, anti-setting agents, etc. Water-based pigment has been widely applied in coloration for textiles, paints, architecture, wood and so on [ , ]. "ut the unmodified pigment dispersion that contains pigments with large particle size is unstable and also suffers from the problems as precipitation and floating color. "nd then the color, fastness, handle and uniformity of the fabrics dyed with the unmodified pigment dispersion are influenced.Ultra-fine modified pigment UMP is referred to nanometer or micrometer pigment particle by physical and/or chemical modifications in a composite disperse system with attaching functional groups for pigment dispersion. These functional groups often have contribution to appear the vivid color for the chromophoric groups in the pigment particle by selectively reflecting and absorbing certain wavelengths of visible light [ ]. The UMP dispersion usually shows relative stability and higher color strength K/S value which closely approaches to that of dyes [ ]. When UMP is used to color, the finely divided, insoluble particle remains throughout the coloration process [ ]. Without the binder or less the amount of binder added in printing paste, the good handle will be achieved. "nd the better fastness is attained with the stronger attraction between the UMP and the fiber [ , ]. The UMP systems are divided into nonionic pigment dispersion, anionic pigment dispersion and cationic pigment dispersion according to the charged particles. Compared to the nonionic pigment dispersion, the pigment dispersion with ionic dispersant may produce the stronger combining power to the fabric [ , ].The cationic disperser has been widely used in many fields. It had been reported in Japanese patents that cationic disperser was applied in electrodeposits coat. "eing prepared with cationic disperser, the cationic pigment dispersion is able to decrease the migration of the pigment, and favorable dyeing deepness and color fastness are also obtained when such pigment is applied to pretreated cotton fabric and terylene-cotton fabric in pad dyeing [ ]. The cationic surfactant is grafted onto the acrylic acid copolymer to attain disperser which is then applied to the anthraquinone pigment to prepare ink for ink-jet printing on paper [ ]. In addition, there are many applications of cationic disperser in other fields, such as papermaking, image thermomigration, ink-jet printing paper, inorganic nano-scale powder and preparing hydrophilic ethylene copolymer dispersion. Moreover, pigment dyeing by exhaust process is possible by imparting substantivity with cationic reagents to induce the necessary affinity between pigments and fibers. The chemical modification of fiber with cationic reagents has been carried out to improve the dyeing properties [ , ].In this chapter, the preparation of UMP, such as dispersing process, grinding process, ultrasonic wave process, microe...

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Section: Dyeing Acrylic Yarns With Cationic Umpmentioning

confidence: 93%

Preparation, Characterization and Application of Ultra-Fine Modified Pigment in Textile Dyeing

Wang¹,

Yin²

2013

Eco-Friendly Textile Dyeing and Finishing

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“…maleic acid, sodium salt]. In their studies of influence of SMA copolymer on the stability and flocculation of quinacridone redpigment suspension, Zhou et al 37 observed that the SMA copolymer improved the dispersion, and the system with an intrinsic viscosity of 0.2438 Lg À1 gave the best dispersing ability. Apart from pigment dispersion, alkali-modified SMA copolymers have also been used for dispersion in suspension ion and emulsion copolymers.…”

Section: Dispersibility Of Tio 2 Particlesmentioning

confidence: 97%

Synthesis and characterization of alkali‐modified styrene‐maleic anhydride copolymer for dispersion of TiO₂

Kumari

Nigam²,

Agarwal

et al. 2006

J of Applied Polymer Sci

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A copolymer of styrene and maleic anhydride was synthesized by free radical polymerization at 80°C using N,N‐dimethylformamide (DMF) as solvent and benzoylperoxide as initiator. The monomer feed ratio of styrene to maleic anhydride was varied in the range of 1 : 1 : to 3 : 1. The polymer yield was found to decrease with increase in styrene in the feed. The molecular weight of copolymers which were formed by taking styrene to maleic anhydride ratio of 1 : 1, 2 : 1, and 3 : 1, as determined by Ostwald Viscometery were about 1862, 2015, and 2276 respectively. The acid values of abovementioned three copolymers were found to be 480, 357, and 295, respectively. The typical viscosity values of 20% solids in ammonical solution of copolymers formed by taking feed ratios of Sty : MAn as 1 : 1 and 2 : 1 were 26 and 136 cp, respectively. For the feed ratio 3 : 1, a gel was formed. The synthesized copolymers were hydrolyzed by alkalis, namely, NaOH, KOH, and NH4OH. The dispersing ability of hydrolyzed styrene‐maleic anhydride (SMA) copolymers for dispersion of titanium dioxide was studied. The modified SMA copolymers were found to be effective dispersants for TiO2. Among the three alkalis studied, the Sodium salts of SMA were found to give better dispersion. The copolymer having a 1 : 1 feed ratio showed the best dispersing ability for TiO2 particles among the three ratios studied. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 3194–3205, 2007

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“…Copolymerizing S with the highly reactive maleic anhydride (MA) produces alternating polystyrene/maleic anhydride (PSMA) copolymers that are commonly used as additives in blends or composites to achieve desirable interfacial effects and as dispersants in the soluble form. 2 The PSMA copolymers for these applications tend to be low in molecular weight. As part of higher molecular weight PS, MA has been incorporated as side chains via acylation 3 and grafting reactions.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, the well‐known Merrifield resins1 are divinylbenzene‐crosslinked copolymers of S and chloromethylstyrene for organic synthesis. Copolymerizing S with the highly reactive maleic anhydride (MA) produces alternating polystyrene/maleic anhydride (PSMA) copolymers that are commonly used as additives in blends or composites to achieve desirable interfacial effects and as dispersants in the soluble form 2. The PSMA copolymers for these applications tend to be low in molecular weight.…”

Section: Introductionmentioning

confidence: 99%

Hydrophilic polystyrene/maleic anhydride ultrafine fibrous membranes

Cécile

Hsieh

2009

J of Applied Polymer Sci

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Polystyrene/maleic anhydride (PSMA) was synthesized to reach a viscosity-average molecular weight of 700 kDa and fabricated into ultrafine fibrous membranes consisting of fibers with an average diameter of 300 nm. These ultrafine PSMA fibers were rendered insoluble in organic solvents by reactions with hydrazine and ethylenediamine (ED). The highly efficient incorporation of diamines into the fibrous membranes was easily achieved by brief immersions in either dilute (0.5 wt %) hydrazine for 1 min or ED ether solution for 2 min. Heating at 150 C for 5 min produced crosslinked PSMA with very little or no solubility in acetone with the retention of the fibrous membrane structure. The ED-crosslinked membranes were particularly stable to both bases and acids as well as hydrophilic solvents, had a 46 water contact angle, and absorbed 22 times the amount of water as the as-spun fibrous membrane. This postfiber-formation crosslinking approach was robust, highly efficient, and fast and required very little crosslinking reagent.

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Influence of Styrene–Maleic Anhydride Copolymers on the Stability of Quinacridone Red Pigment Suspensions

Cited by 16 publications

References 7 publications

Preparation, Characterization and Application of Ultra-Fine Modified Pigment in Textile Dyeing

Preparation, Characterization and Application of Ultra-Fine Modified Pigment in Textile Dyeing

Synthesis and characterization of alkali‐modified styrene‐maleic anhydride copolymer for dispersion of TiO₂

Hydrophilic polystyrene/maleic anhydride ultrafine fibrous membranes

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Influence of Styrene–Maleic Anhydride Copolymers on the Stability of Quinacridone Red Pigment Suspensions

Cited by 16 publications

References 7 publications

Preparation, Characterization and Application of Ultra-Fine Modified Pigment in Textile Dyeing

Preparation, Characterization and Application of Ultra-Fine Modified Pigment in Textile Dyeing

Synthesis and characterization of alkali‐modified styrene‐maleic anhydride copolymer for dispersion of TiO2

Hydrophilic polystyrene/maleic anhydride ultrafine fibrous membranes

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Product

Resources

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Synthesis and characterization of alkali‐modified styrene‐maleic anhydride copolymer for dispersion of TiO₂