Preparation and characterizations of eucommia ulmoides gum/polypropylene blend

Fang, Qinghong; Jin, Xin; Yang, Feng; Ma, Chi; Gao, Yu; Wang, Na

doi:10.1007/s00289-015-1491-4

Cited by 18 publications

(19 citation statements)

References 23 publications

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“…17,18 Therefore, almost no EUG was used alone in the rubber industry. In most cases, EUG was blended with other materials, such as cispolyisoprene, [19][20][21][22] chlorobutadiene rubber, 23 cellulose, 24,25 poly(ε-caprolactone), 26 polylactide, 27 polypropylene, 28 to improve the properties of composites or was used to prepare shape memory materials. [29][30][31][32][33][34][35] How to obtain EUG-based elastomer as a substitute for NR has gradually attracted enough attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

A high toughness elastomer based on naturalEucommia ulmoidesgum

Zhao

et al. 2020

J of Applied Polymer Sci

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Eucommia ulmoides gum (EUG) is a kind of bio-based polymer with similar structure to natural rubber (NR). However, it behaves as hard plastic at room temperature due to crystallization, which makes it not as widely used as NR. Herein, a new bio-based elastomer (HEUG) was prepared by rhodiumcatalyzed hydrogenation of EUG for the first time. 1 H-NMR and 13 C-NMR spectroscopy confirmed the structure of HEUG, and wide angle X-ray diffraction, polarizing light microscopy showed that the crystal was gradually destroyed in the hydrogenation process, finding that when the degree of hydrogenation is more than 16.5%, HEUG transformed from plastic to elastomer at room temperature. Besides, the Synchrotron Radiation experiment showed that HEUG with hydrogenation of 85.9% could be self-reinforced by strain-induced crystallization during stretching, which make it has excellent tensile strength and toughness (21.4 MPa and 68.1 MJ m −3 , respectively). This new bio-based elastomer has the potential to replace NR and has a wide application prospect in rubber industry.

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Section: Introductionmentioning

confidence: 99%

A high toughness elastomer based on naturalEucommia ulmoidesgum

Zhao

et al. 2020

J of Applied Polymer Sci

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“…Epoxidation with different epoxy contents was a common modification method for EUG, and the modification is beneficial to enhancing the interfacial strength between rubber and carbon‐black, which reflected the combined improvement of wet skid resistance and rolling resistance . In addition, the blend of polypropylene with EUG was a simple way to improve the impact strength, because the properties of blend material were transferred from brittleness to ductility. Rubber blending was indispensable to rubber processing, which could ensure rubber's uniformity and high mechanical property.…”

Section: Introductionmentioning

confidence: 99%

Binary Modification of Eucommia ulmoides Gum Toward Elastomer with Tunable Mechanical Properties and Good Compatibility

Zhao

Zhang

et al. 2019

J. Polym. Sci. Part A: Polym. Chem.

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Eucommia ulmoides gum (EUG) was applied in blend rubber with a heavily limited amount because of its duality of rubber and plastic, and an efficient way of triazolinedione (TAD)-based Alder-ene reaction was used to improve the elastic properties of EUG. Binary modification of EUG with two TADs containing hexyl and polyhedral oligomeric silsesquioxane (POSS) groups were conducted to generate the modified EUG elastomers with tunable mechanical properties and good compatibility by varying TAD contents. When the low hexyl (1%) and POSS (0.2%) TADs incorporated, the modified EUGs displayed high tensile strength of 36.57 MPa with the elongation at break of 876%, and thus high toughness of 152.14 MJ m −3 . If high contents of hexyl (20%) and POSS (0.2%) TADs employed, the modified EUGs exhibited excellent elongation at break of 1165% and recovery rate of 60%, and especially its loss factor reached up to 0.83-0.65 at 20-70 C. Therefore, the modified EUGs containing the polar urazole and POSS groups should be a novel elastomer with good compatibility, wear resistance, and damping properties.

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“…EUG is also called balata or gutta‐percha, the main component of which is trans ‐polyisoprene, an isomer of NR. Unlike soft NR, EUG possesses both flexibility and plasticity, which allows it to be used as plastic, elastomer, and shape memory materials via regulating its crosslinking degree . Actually, EUG has been used to develop high‐performance rubber products, including tire, damper, and belt, making use of its excellent dynamic fatigue properties and low heat buildup .…”

Section: Introductionmentioning

confidence: 99%

Role of epoxidized natural Eucommia ulmoides gum in modifying the interface of styrene‐butadiene rubber/silica composites

Wang

Liu

Xia

et al. 2019

Polymers for Advanced Techs

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Eucommia ulmoides gum (EUG) is a renewable and sustainable polymer, which could be used as rubber or plastic by altering its crosslinking density while the complicated extracting process and nonpolar molecular chains limited its application. In this effort, a novel extraction method was introduced, which could simplify the extraction process of EUG. Then, the extracted EUG-chloroform (CHCl 3 ) solution was directly used to prepare epoxidized EUG (EEUG) with an epoxy degree of 40.0% to improve its polarity. The epoxidized natural EUG exhibiting both polar and nonpolar motives had an advantage in working as an interfacial compatibilizer for polymer composites, especially bio-based composites due to its inherent biocompatibility. Accordingly, the role of EEUG in modifying the interface of styrene-butadiene rubber (SBR)/silica composites were explored. The results showed that EEUG in SBR/silica composites acted not only as a compatibilizer but also as a constructure generating better mechanical properties than other compatibilizers, such as silane couplings, Si-69 and KH-550, and epoxidized natural rubber (ENR). The simplified extracting process and the epoxy modification of EUG would extend its application in rubber materials, medical materials, and biopolymer materials.

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Preparation and characterizations of eucommia ulmoides gum/polypropylene blend

Cited by 18 publications

References 23 publications

A high toughness elastomer based on naturalEucommia ulmoidesgum

A high toughness elastomer based on naturalEucommia ulmoidesgum

Binary Modification of Eucommia ulmoides Gum Toward Elastomer with Tunable Mechanical Properties and Good Compatibility

Role of epoxidized natural Eucommia ulmoides gum in modifying the interface of styrene‐butadiene rubber/silica composites

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