Compatibilization of an immiscible blend of <scp>EPDM</scp> and <scp>POM</scp> with an Ionomer

Bragaglia, Mario; McNally, Tony; Lamastra, Francesca Romana; Cherubini, Valeria; Nanni, Francesca

doi:10.1002/app.50423

Cited by 8 publications

(9 citation statements)

References 89 publications

(167 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peaks that occurred at 629 and 1235 cm −1 were also associated with the rocking of CH bonds. [ 44 ] The fingerprint region (500–1500 cm −1 ) of IR spectrum in Figure 1 also clearly showed all the characteristic peaks of pure POM. [ 45–47 ] The incorporation of SWN into the POM nanocomposites did not influence the FTIR spectrum, which there was not any peak shifting, appearance of new peak or disappearance of old peak observed.…”

Section: Resultsmentioning

confidence: 94%

“…The characteristic peaks at 2920 and 2979 cm −1 can be appointed to the asymmetric and symmetric stretching vibration of CH bonds respectively, whereas CH bending vibration was observed at 1383 and 1469 cm −1. [ 44 ] The appearance of peaks at 889 and 1088 cm −1 was due to the symmetric and asymmetric stretching vibration of COC bonds respectively. Besides, the peak at 1235 cm −1 referred to the bending vibration of COC bonds, whereas the peak identified at 629 cm −1 belonged to the bending vibration of OCO bonds.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Use of synthetic wollastonite nanofibers in enhancing mechanical, thermal, and flammability properties of polyoxymethylene nanocomposites

et al. 2022

View full text Add to dashboard Cite

This study investigates the mechanical, thermal, and flammability properties of synthetic wollastonite nanofibers (SWN) reinforced polyoxymethylene (POM) nanocomposites. SWN has been added into the POM nanocomposites in the range of 0.5-3 phr via melt blending. The mechanical properties were investigated through tensile and impact tests with scanning electron microscopy and energy dispersive X-ray analysis. The thermal characterization was performed by thermogravimetry analysis and differential scanning calorimetry. Flame retardancy of nanocomposites was studied through cone calorimetry analysis and limiting oxygen index test. The tensile strength of nanocomposites improved by 5.88% at 1 phr SWN content, whereas Young's modulus increased with increasing content. The thermal stability of nanocomposites was enhanced as indicated by the higher initial degradation temperature, which rose about 22 C at 1 phr SWN content. The POM/SWN nanocomposites exhibited better mechanical strength despite their lower crystallinity due to the substantial reinforcing effect of SWN. The flame retardancy of nanocomposites improved, as indicated by the reduction of peak heat release rate from the cone calorimetry test. This study shows that SWN has simultaneously enhanced the mechanical strength, thermal stability, and flame retardancy of POM nanocomposites and has the potential in automotive applications.flame retardancy, mechanical properties, nanocomposites, polyoxymethylene, thermal properties, wollastonite | INTRODUCTIONPolyoxymethylene (POM) also known as polyacetal, is a widely used engineering thermoplastics with high commercial value. [1][2][3] POM comprises formaldehyde ( CH 2 O ) repeating units without bulky side groups, which gives high crystallinity due to its high flexibility and mobility. The high crystallinity of POM contributes to the high mechanical strength, stiffness, and dimensional stability, making it capable of being an alternative to metallic materials for a wide range of applications, such as automotive, electrical, and electronic, precise machinery, construction, and household appliances. [4][5][6][7] However, POM does have limitations on the thermal

show abstract

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Use of synthetic wollastonite nanofibers in enhancing mechanical, thermal, and flammability properties of polyoxymethylene nanocomposites

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Compound mixing was carried out using a two‐wing rotor laboratory Banbury mixer ( Brabender Plasti‐Corder Lab Station 2100 GmbH & Co. KG, Duisburg, Germany ) at 80°C for 15 min, using a rotor speed of 30 rpm. Carbon black ( Super P, Timcal Ltd., Bodio, Switzerland ) was added as reinforcing filler, dicumyl peroxide (DCP, Sigma Aldrich ) as curing agent and butylated hydroxytoluene ( Sigma Aldrich ) as antioxidant and scorch retarder 45 . Rubber compound sheets were obtained by means of a laboratory two‐roll mill.…”

Section: Methodsmentioning

confidence: 99%

“…Carbon black (Super P, Timcal Ltd., Bodio, Switzerland) was added as reinforcing filler, dicumyl peroxide (DCP, Sigma Aldrich) as curing agent and butylated hydroxytoluene (Sigma Aldrich) as antioxidant and scorch retarder. 45 Rubber compound sheets were obtained by means of a laboratory two-roll mill. The sheets were hot pressed at 5 bar and 160 C for 30 min to obtain vulcanized samples.…”

Section: Rubber Compound Mixingmentioning

confidence: 99%

Towards sustainable rubber compounds: The use of waste raw materials

Bragaglia

Paleari

Berrocal

et al. 2023

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

This article aims to realize a sustainable rubber compound made in large percentage of secondary raw materials. Waste chewing gum (WCG) has been studied as source of rubber and added in 25% by weight in an ethylene propylene diene monomer based compound in view of a circular economy and eco‐friendly rubber manufacturing. Biobased CaCO3 extracted from waste eggshells was used as extender agent and waste cooking oil from potato chips frying was employed as processing aid. The rubber extracted from WCG resulted to be polyisobutylene (PIB) whereas the main component of the WCG is polyvinyl acetate (PVAc). The addition of the WCG modifies the rheological properties of the rubber compound leading to a better filler–filler and filler–matrix interaction. On the other hand, the presence of both PVAc and PIB leads to lower mechanical properties (max torque 6 vs 10 dNm in curing test) but also higher elongation at break (600% vs 500%). The WCG also increases the self‐adhesion of the rubber and decreases the glass transition temperature allowing for the use of these compounds at lower temperatures thanks to its good tack behavior.

show abstract

“…Generally, there are two ways to improve the toughness of the POM resin. [9][10][11][12][13] One is chemical reaction method, which is to increase the content of comonomer or add a third comonomer during polymerization. [14][15][16] However, by polymerizing mechod the cost of industrial production is very high, and the toughness or notch impact strength of POM composites cannot be greatly improved.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the mechanical, thermal and electrical properties of polyoxymethylene composites modified by thermoplastic polyurethane elastomer and carbon fiber

Jiang¹,

Fang²,

et al. 2023

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

As we all know, adding thermoplastic polyurethane elastomer(TPU) into Polyoxymethylene(POM) by melt blending can not only improve its toughness, but also improve the brittleness and cracking of POM products at low temperatures. However, there are some problems in the use of above POM/TPU modified material. For example, after adding TPU, the strength and rigidity of POM resin will be significantly reduced, and its antistatic performance is not very good. In this paper, we use melt-extrusion blending method to improve the strength, rigidity and antistatic properties of toughened POM material by adding CF. In addition, the aggregation and properties of the blends are studied by DSC, FTIR, PLM, DMA and mechanical tests, surface resistivity. Mechanical analysis show us that the tensile strength, flexural modulus increase significantly with the increase of CF content, and the notched impact strength of the POM/TPU/CF materials are all better than that of the pure POM resin. It can also be found that after adding 2% to 8% CF, the surface resistivity of the composites gradually decreases with the increase of CF content, and CF forms a conductive network in the POM matrix. The anti-static test shows that when the CF content is 6% the surface resistivity of POM/TPU/CF blend is 109Ω, and when the CF content is 8% which can reach to 104Ω.

show abstract

Compatibilization of an immiscible blend of EPDM and POM with an Ionomer

Cited by 8 publications

References 89 publications

Use of synthetic wollastonite nanofibers in enhancing mechanical, thermal, and flammability properties of polyoxymethylene nanocomposites

Use of synthetic wollastonite nanofibers in enhancing mechanical, thermal, and flammability properties of polyoxymethylene nanocomposites

Towards sustainable rubber compounds: The use of waste raw materials

Investigation on the mechanical, thermal and electrical properties of polyoxymethylene composites modified by thermoplastic polyurethane elastomer and carbon fiber

Contact Info

Product

Resources

About