Compatibilization of polypropylene/recycled polyethylene terephthalate blends with maleic anhydride grafted polypropylene in the presence of diallyl phthalate

Zhu, Yeling; Liang, Changsheng; Yang, Bo; Xu, Shiai

doi:10.1007/s10965-014-0591-4

Cited by 33 publications

(19 citation statements)

References 49 publications

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“…New absorption peaks observed at 1856 and 1780 cm −1 in the FTIR spectra of the three functionalized PPs are attributed to the symmetric and asymmetric stretching vibration of the carbonyl groups (C=O) of MAH [9,11,24]. The absorption peaks observed at 1722 cm −1 in PP-g-MAH/ DAP and at 1690 cm −1 in PP-g-MAH/TAIC are assigned to the C=O of DAP and TAIC, respectively [25,26]. These results show that MAH has been successfully grafted on PP with the assistance of different co-monomers.…”

Section: Resultsmentioning

confidence: 92%

“…However, St has a limited ability to reduce chain scission of PP molecules, resulting in poor mechanical performance and thus the tearing of PP-g-MAH/St during the testing process. PP-g-MAH/DAP shows better T-peeling and heat-sealing strengths than PP-g-MAH/St, as shown in figure 10, which is due to the higher grafting degree of MAH and the restriction of DAP on chain scission [25]. The coordination between DAP and Ti treated Al foil surface might also contribute to the improvement of T-peeling and heat-sealing strengths [36].…”

Section: Adhesive Performancementioning

confidence: 94%

“…Table 2 shows that the T −5 , T −50 and T rpd values of PP-g-MAH/DAP are 395.6, 463.0 and 466.5°C, with an increase of 4.3, 15.3 and 13.1°C compared to pure PP, respectively. The better thermal stability may be ascribed to the bi-functional groups of DAP that can transfer macroradicals from main chain to side chain and promote the formation of a cross-linked structure, which inhibit PP degradation [25,30]. PP-g-MAH/TAIC has higher T −5 , T −50 and T rpd values than PP-g-MAH/DAP, since more functional groups are introduced on PP by the reaction of TAIC with PP macroradicals, resulting in further increase of cross-linked structures.…”

Section: Thermal Stabilitymentioning

confidence: 99%

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Effect of co-monomer on the adhesive performance of PP-g-MAH between cast polypropylene film and aluminum foil

Shen

2020

Mater. Res. Express

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Three functionalized polypropylenes (PPs) were successfully prepared for use as the inner adhesive layer of aluminum/polymer laminated film by melt grafting of maleic anhydride (MAH) on PP with styrene (St), diallyl phthalate (DAP) and triallyl isocyanurate (TAIC) as co-monomers, respectively. The effects of these co-monomers (St, DAP and TAIC) on the grafting degree of MAH, gel content, thermal property and adhesive performance of MAH grafted PP (PP-g-MAH) were investigated. The results show that the T-peeling and heat-sealing strengths of TAIC-assisted PP-g-MAH (PP-g-MAH/ TAIC) are 28.6 and 70.4 N /15 mm, which are increased by 33.6% and 20.8% compared to DAPassisted PP-g-MAH (PP-g-MAH/DAP), and by 142.4% and 81.0% compared to St-assisted PP-g-MAH (PP-g-MAH/St), respectively. The grafting degree of MAH reaches a maximum of 2.3 wt% in PP-g-MAH/TAIC, which leads to a higher crystallization temperature than PP-g-MAH/DAP and PPg-MAH/St. PP-g-MAH/TAIC also has better thermal stability than the other two functionalized PPs, as TAIC can effectively reduce PP chain scission and promote the formation of a cross-linked structure during the melt grafting.

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Section: Resultsmentioning

confidence: 92%

Section: Adhesive Performancementioning

confidence: 94%

Section: Thermal Stabilitymentioning

confidence: 99%

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Effect of co-monomer on the adhesive performance of PP-g-MAH between cast polypropylene film and aluminum foil

Shen

2020

Mater. Res. Express

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“…Compared to uncompatibilized blend due to the elastomeric nature of SEBS in SEBS‐ g ‐MAH. Zhu et al carried out a research on PP/PET (80/20 wt.) blend with polypropylene grafted maleic anhydride and diallyl phthalate(PP‐g‐MAH/DAP) as a compatibilizer and observed better size distribution, dispersion, better mechanical properties with respect to the uncompatibilized PP/recycled PET blend.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mechanical and Thermal Performance of Polyethylene Terephthalate Recycled Ribbon and Carbon‐Reinforced Compatibilized Polypropylene

Saifullah

Inampudi

Nikzad

et al. 2019

Polymer Engineering & Sci

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Polypropylene (PP) and polyethylene terephthalate (PET) are the two most widely used plastics, which are not compatible with recycling as a blend. In this research work, two different compositions of recycled PP/PET ribbon 65/35 (v/v %) and 78/22 (v/v%) along with 5% (wt%) of polypropylene‐grafted maleic anhydride (PP‐g‐MAH) as compatibilizer were blended, 2– 5 wt% of carbon fiber (CF) was further added for reinforcement. The compositions of these materials are mechanically mixed and extruded by a twin‐screw extruder to make pellets. These pellets are then used to produce standard samples by injection molding for evaluation. The molded samples were tested under tensile, flexural and impact loads to evaluate mechanical properties. Scanning electron microscopy (SEM) was conducted on the fracture surface of the impact‐tested samples to understand polymer blend morphology. Differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) also carried out to check the thermal properties, mainly transition temperatures (Tg) and heat flow. These test results compared, which show substantial improvement in mechanical properties by adding CF and compatibilizer, without much change in transition temperatures. POLYM. ENG. SCI., 60:575–580, 2020. © 2019 Society of Plastics Engineers

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“…HDPE-g-MA and PP-g-MA), ethylene-propylene-diene terpolymer (EPDM-g-MA) and hydrogenated styrene-butadiene-styrene terpolymer (SEBS-g-MA) [20]. The effectiveness of PP-g-MA was previously demonstrated in blends of PS/PP [21], PP/PET [22], HDPE/PP [23] and PA12/PP [24]. Tóth et al [25] reported positive effects of maleic-anhydride grafted polyolefins (PO-g-MA) on tensile and impact properties of PE/crumb rubber system.…”

Section: Introductionmentioning

confidence: 99%

Investigation of compatibilization effects of SEBS-g-MA on polystyrene/polyethylene blend with a novel separation method in melted state

Dobrovszky

Ronkay

2016

Polym. Bull.

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Abstract:Preparing polymer blends is an effective way to tailor the good properties of plastics but the most commonly used polymers are incompatible with each other. Therefore, to reduce the interfacial tension and to achieve finer and stable morphology, a suitable copolymer or compatibilizer has to be added to blends in order to establish new interactions between the phases. However, it is difficult to determine the required amount of compatibilizers in polymer blends. As an outcome of the present research a novel separation method was developed, where the blends are investigated in melted state, utilising centrifugal force to determine the adequacy of compatibilizers. The effectiveness of styrene/ethylene/butylene/styrene block copolymer grafted with maleic anhydride (SEBS-g-MA) was verified by blending two immiscible plastics: polystyrene (PS) and high density polyethylene (HDPE). FTIR measurements were carried out to support the results of optical microscopy regarding the purity of separation. Comparing the results of morphology, rheology and mechanical properties with the novel separation method, it seems that investigation of compatibilization effect in a melted state would be suitable for predicting the adequacy of compatibilizer in blend. The minimum required amount of compatibilizer was also detectable, wherein the stress-strain curves begins to change significantly and the impact properties starting to improve in PS/HDPE blends.Keywords: compatibilization; polymer separation; polymer blend; centrifugal force; polymers in melted state.Acknowledgements: This research was realized in the framework of TÁMOP 4.2.4. A/1-11-1-2012-0001 "National Excellence Program -Elaborating and operating an inland student and researcher personal support system".

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Compatibilization of polypropylene/recycled polyethylene terephthalate blends with maleic anhydride grafted polypropylene in the presence of diallyl phthalate

Cited by 33 publications

References 49 publications

Effect of co-monomer on the adhesive performance of PP-g-MAH between cast polypropylene film and aluminum foil

Effect of co-monomer on the adhesive performance of PP-g-MAH between cast polypropylene film and aluminum foil

Evaluation of Mechanical and Thermal Performance of Polyethylene Terephthalate Recycled Ribbon and Carbon‐Reinforced Compatibilized Polypropylene

Investigation of compatibilization effects of SEBS-g-MA on polystyrene/polyethylene blend with a novel separation method in melted state

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