Synthesis of fiber crosslinking cationic latex and its effect on surface properties of paper

Yan, Xiuhua; Ji, Yongxin; He, Ting

doi:10.1016/j.porgcoat.2012.08.003

Cited by 25 publications

(14 citation statements)

References 17 publications

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“…Internal sizing chemicals used in papermaking at the wet end are Alkyl ketene dimer (AKD) [14][15][16], alkyl succinic anhydride (ASA) [17] and rosin [18]. Surface sizing agents consist of mainly modified starches and other chemicals, such as waterborne polyurethane [19,20], styrene/acrylic type polymers [21][22][23]. Surface sizing agents are amphiphilic molecules having both hydrophilic (water-loving) and hydrophobic (waterrepelling) ends.…”

Section: Theory Of Sizingmentioning

confidence: 99%

The water resistance of corrugated paper improved by lipophilic extractives and lignin in APMP effluent

et al. 2015

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In this article, quantitative determination of compositions (hemicellulose and lignin) in the APMP (alkaline peroxide mechanical pulping) effluent was done. The MTBE (methyl tert-butyl ether) extracts of the APMP effluent (extractives) were analyzed by GC/MS (gas chromatography-mass spectrometry). The result of GC/MS showed that fatty acids (C14-C28) and their esters, sterols were the main components of extractives. Based on the qualitative and quantitative determination of compositions in APMP effluent and the mechanism of surface sizing, APMP effluent combined with starch and Al 2 (SO 4 ) 3 was used as corrugated paper surface sizing agent; the water resistant mechanism of which was explored. Combined effects of lignin (extractives) and Al 3? played a major role in hydrophobic properties of corrugated paper, the Cobb values of corrugated paper sized by which were 35.2 and 39.8 g/m 2 , respectively. The water contact angles were 126.6°and 115.6°at 120 s, respectively. No previous studies or article on APMP effluent improving the water resistance of corrugated paper have been reported.

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Section: Theory Of Sizingmentioning

confidence: 99%

The water resistance of corrugated paper improved by lipophilic extractives and lignin in APMP effluent

et al. 2015

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“…For instance, a water-borne epoxy resin added at the size press with starch has shown promise for increasing the strength and stiffness of low basis weight paper (Li et al 2012b). Alternatively, promising strength improvements have been achieved by the addition of latex products at the size press (Yan et al 2013).…”

Section: Surface Sizingmentioning

confidence: 99%

Prospects for Maintaining Strength of Paper and Paperboard Products While Using Less Forest Resources: A Review

Hubbe¹

2013

BioResources

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Paper production requires large amounts of cellulosic fiber, whereas the world's forested lands and croplands have a finite capacity to supply such resources. To deal with likely future pressure on forest resources, as well as to hold down costs of materials, publications examined in the preparation of this review suggest that the paper industry will need to implement several concurrent strategies. In particular, the industry can be expected to view recycling as a central part of its activities. Basis weights of various paper-based products can be expected to decrease over the coming decades, and more of the fiber content will be replaced with fillers such as calcium carbonate. Such trends will place intense demands upon chemical-based strategies to enhance the bonding within paper and paperboard. Based on the literature, further progress in reducing the amount of new forest resources used to meet a given set of paper product requirements will require a combined approach, taking into account various fiber attributes, nanostructures, novel concepts in bond formation, and advances in the unit operations of papermaking.

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“…1(b); however, it was difficult to avoid forming mono-stearamide, as shown in Fig. 2(a) (Yan et al 2013). Thus, the stearamide gained after the first step was a mixture of bis-stearamide and mono-stearamide.…”

Section: Resultsmentioning

confidence: 97%

The Impact of Synthesis Conditions on the Structure and Properties of Di-(Stearylamidoethyl) Epoxypropyl Ammonium Chloride

Xu¹,

Xu²,

Wang³

et al. 2013

BioResources

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Both alkylketene dimer (AKD) and alkenyl succinic anhydride (ASA) are widely used neutral papermaking sizing agents. However, AKD has the issue of sizing hysteresis, while ASA requires on-site emulsification. In addition, both reagents are readily hydrolyzed. Di-(stearylamidoethyl) epoxypropyl ammonium chloride (DSEAC) has been applied as a fabric softener, but it is a potential sizing agent which leads to good sizing without sizing hysteresis. It could be synthesized by a two-step process starting from stearic acid and diethylenetriamine. During the process, the stearamide structure obtained from the first step plays a key role in the second process as well as sizing. This paper focuses on the impact of the synthetic process of the first step on the structure and sizing properties of DSEAC. Single factor experimental results demonstrated that the optimal temperature should be 160 °C while the optimal reaction time should be less than 3.5 hours. Orthogonal analysis experiments indicated that the optimal synthetic process was maintaining 100 °C for 30 min, and then increasing the temperature to 160 °C for 3.5 hours. Dosages of the catalysis and antioxidant were 0.5% and 0.6% of stearic acid, respectively.

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Synthesis of fiber crosslinking cationic latex and its effect on surface properties of paper

Cited by 25 publications

References 17 publications

The water resistance of corrugated paper improved by lipophilic extractives and lignin in APMP effluent

The water resistance of corrugated paper improved by lipophilic extractives and lignin in APMP effluent

Prospects for Maintaining Strength of Paper and Paperboard Products While Using Less Forest Resources: A Review

The Impact of Synthesis Conditions on the Structure and Properties of Di-(Stearylamidoethyl) Epoxypropyl Ammonium Chloride

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