Influence of compatibilizers on the surface hardness, water uptake and the mechanical properties of poly(propylene) wood flour composites prepared by reactive extrusion

Nitz, Hansjörg; Reichert, Peter; Römling, Hartmut; Mülhaupt, Rolf

doi:10.1002/(sici)1439-2054(20000301)276:1<51::aid-mame51>3.0.co;2-z

Cited by 58 publications

(37 citation statements)

References 6 publications

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“…Here again, mechanical property requirements include impact strength, flexural modulus, and ultimate strength. [9][10][11][12] These and other researchers [13][14][15] found that the addition of SEBS-g-MA not only improved the tensile strength of WPCs but also it improved impact strength; however, the modulus decreased. Note that the impact strength of PPbased WPCs is very sensitive to the wood flour content.…”

Section: Introductionmentioning

confidence: 89%

Synergistic effect of coupling agents on polypropylene‐based wood–plastic composites

Yeh¹,

Kim²,

Gupta³

2012

J of Applied Polymer Sci

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In this study, polypropylene grafted with maleic anhydride (PP-g-MA) and styrene ethylene-co-butylene styrene block copolymer grafted with maleic anhydride (SEBS-g-MA) were used as coupling agents for polypropylene-based wood-plastic composites containing 50 wt % wood flour. Adding up to 5 wt % PP-g-MA to the composite increased the tensile strength of the woodplastic composite (WPC) by almost 100% and the reversed-notch Izod impact strength by more than 100%; the modulus remained essentially unchanged. By contrast, the same amount of SEBS-g-MA had a greater effect on the impact strength but a smaller influence on the tensile strength; in addition, the modulus was reduced. On using a combination of 2 wt % PP-g-MA and 1 wt % SEBS-g-MA, the impact strength of the composite could be increased significantly, but the tensile strength and modulus were not reduced to any appreciable extent relative to the use of PP-g-MA alone. Because WPCs are building products where minimizing costs is extremely important, this finding has important commercial implications.

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Section: Introductionmentioning

confidence: 89%

Synergistic effect of coupling agents on polypropylene‐based wood–plastic composites

Yeh¹,

Kim²,

Gupta³

2012

J of Applied Polymer Sci

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“…[25][26][27] One other effect is the lack of adhesion between the PE and WF that gives rise to capillaries (pores) in the WPC structure. [25][26][27] One other effect is the lack of adhesion between the PE and WF that gives rise to capillaries (pores) in the WPC structure.…”

Section: Water Absorptionmentioning

confidence: 99%

Comparative study of maleated and glycidyl methacrylate functionalized terpolymers as compatibilizers for low‐density polyethylene–wood flour composites

Altun

Doğan

Bayramlı

2012

J of Applied Polymer Sci

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Two types of terpolymers, maleic anhydride (MA) and glycidyl methacrylate (GMA) functionalized, are used as compatibilizer in low-density polyethylene-wood flour composites. The type and amount of compatibilizer on the tensile, impact, morphological, and water absorption properties of composites are investigated. The effect of preimpregnation with a compatibilizer solution is also studied. The MA functionalized compatibilizer increases the mechanical properties of composites, when it is used either directly or with preimpregnation. GMA functionalized compatibilizer is not as effective as MA functionalized compatibilizer giving rise to small improvements in properties. An important point is doubling of the modulus with MA preimpregnated compatibilizer. With both compatibilizers the water absorption value of composites are reduced and the preimpregnation with both compatibilizers do not change the total amount of absorbed water with respect to the non-preimpregnated ones.

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“…As a matter of fact, Oksman and Lindberg [11] as well as the team of Liao [12] studied the mechanical behavior of composites based on polyethylene and wood flour samples [11,12]. On the other hand, Zaini et al [13], Nitz et al [14], and Kaci et al [15,16] investigated the mechanical behavior of polypropylene/wood flour composites. Some authors examined also the mechanical behavior of PS/PEHD/ wood flour [17].…”

Section: Introductionmentioning

confidence: 99%

Thermal, dielectric and mechanical study of poly(vinyl chloride)/olive pomace composites

Djidjelli¹,

Benachour²,

Boukerrou³

et al. 2007

Express Polym. Lett.

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Abstract.Composites from PVC and chemically treated olive pomace have been prepared. The effect of the incorporation of virgin and benzylated olive pomace in the poly(vinyl chloride) matrix on dielectric, mechanical and thermal stability properties, of /olive pomace composites was studied. The mechanical properties of the benzylated composites were improved. Furthermore, the thermal characterization of the different samples carried out by thermogravimetric analysis revealed an increase in the onset temperatures of decomposition for the treated composites. The dielectric investigation indicated that the samples containing olive pomace treated with the benzyl chloride can be used in electrical applications as insulators.

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Influence of compatibilizers on the surface hardness, water uptake and the mechanical properties of poly(propylene) wood flour composites prepared by reactive extrusion

Cited by 58 publications

References 6 publications

Synergistic effect of coupling agents on polypropylene‐based wood–plastic composites

Synergistic effect of coupling agents on polypropylene‐based wood–plastic composites

Comparative study of maleated and glycidyl methacrylate functionalized terpolymers as compatibilizers for low‐density polyethylene–wood flour composites

Thermal, dielectric and mechanical study of poly(vinyl chloride)/olive pomace composites

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