Pengaruh Perlakuan Alkalinisasi Serat Alam Kayu Bangkirai (Shorea Laevifolia Endert) pada Sifat Mekanik Komposit dengan Matriks Poliester

Laksono, Andromeda Dwi; Basyaruddin,; Adlina, Nur

doi:10.32487/jst.v5i2.672

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…This is due to the necessary alkali treatment that damages the polyester matrix; this affects the flexural strength value even if the fibre has been alkalised. This is also consistent with studies [21] about the appropriate alkalisation treatment at 5%. Further additions of excessive alkalisation concentrations can eliminate some of the natural composite fibres' lignin, decreasing the composites' mechanical qualities.…”

Section: The Effect Of Altering the Percentage Of Coffee Husk Waste A...supporting

confidence: 92%

The Effect of Coffee Husk Waste Addition with Alkalisation Treatment on the Mechanical Properties of Polypropylene Composites

Melyna

Afridana²

2023

equilibrium

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ABSTRACT. Indonesia is the fourth largest coffee producing country in the world with 762.38 thousand tonnes production in 2020. The coffee bean waste in the form of coffee skins is around 50-60% of the harvest. Coffee skin waste is a type of natural material that has not been widely used. Processing coffee skin waste as a filler in thermoplastic polymers can be a solution to environmental problems. This study using the polypropylene matrix. This study was conducted to determine the effect of adding coffee husk by alkalizing treatment on polypropylene composites on tensile strength, impact strength and flexural strength. The composition of coffee husk used is 20, 30, 40% wt. The coffee husk was first alkalized with 5%, 8%, and 11% KOH to remove lignin. Composite manufactured using manual forming machines. The results of this study indicate that the addition of coffee husk reduces the value of the tensile strength and flexural strength of the polypropylene composite. The addition of 20% wt coffee husk with 5% KOH alkalisastion on the polypropylene composite gave the highest tensile strength value of 5.65 MPa and the highest flexural strength of 28.72 MPa. Alkalisastion treatment with KOH on coffee husk reduces the value of tensile strength and flexural strength in polypropylene composites. The treatment without 0% KOH alkalisastion on coffee husk gave the highest tensile strength value of 13.30 MPa and alkalizing treatment with 5% KOH on coffee husk gave the highest flexural strength value of 28.72 MPa with the addition of 20% wt coffee husk. Alkalisastion treatment with KOH on coffee husk increased the impact strength value on polypropylene composites. Alkalisastion treatment with 11% KOH on coffee husk gave the highest impact strength value of 4.62 kJ/m2 with the addition of 20% wt coffee husk.Keywords: composite, polypropylene, coffee husk, alkalisation

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Section: The Effect Of Altering the Percentage Of Coffee Husk Waste A...supporting

confidence: 92%

The Effect of Coffee Husk Waste Addition with Alkalisation Treatment on the Mechanical Properties of Polypropylene Composites

Melyna

Afridana²

2023

equilibrium

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“…Furthermore, to determine the composition of the manufacture of motorcycle helmet shells with a composition ratio of 10% fiber and 90% resin. OPEFB fiber was given chemical treatment by soaking in 1 % NaOH alkali for 1 day [9], [10]. In its manufacture using the hand lay-up method in the open air.…”

Section: Methodsmentioning

confidence: 99%

Design and manufacturing processes of half face motorcycle palm fiber reinforced composite polymer

Yani

Lubis

Arfis

et al. 2022

J. Phys.: Conf. Ser.

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The Results of palm oil mill processing are palm oil and its derivatives which have high selling value. While the waste is oil palm empty fruit bunches (OPEFB), its utilization is still small. This waste is considered to have good potential to be utilized and developed into composite materials. This study aims to design and manufacture a half-face motorcycle helmet from a polymer composite reinforced OPEFB fiber. The method of making motorcycle helmet by hand lay-up, where polymer composite is applied to a motorcycle helmet mold made of wood with 2 layers on the shell of the helmet. The ratio of OPEFB fiber and polyester resin is based on a mass fraction of 10:90. Obtained a half-face motorcycle helmet with a mass of 1.5 kg and the size of the helmet is for an adult head.

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“…Metode Proses Pembuatan Papan Partikel [13] Produk komposit menggabungkan serat dan resin untuk membuat matriks dengan sifat fisik atau kimia yang sangat berbeda [14]. Komposit terdiri dari dua unsur utama yang biasa disebut dengan matriks dan penguat (reinforcement) [15]. Matriks merupakan bagian dari komposit yang berfungsi sebagai pengikat serat, terdiri dari bahan termoplastik dan termoseting [16].…”

Section: Metode Dan Bahanunclassified

Potensi Serbuk Kayu Ulin dan Serbuk Bambu Sebagai Aplikasi Papan Partikel Ramah Lingkungan - Review

Laksono

Rozikin

Pattara

et al. 2021

JRM

Self Cite

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The wood and bamboo waste from the exploitation and industry are still not fully utilized where they are now being used as raw material for particleboard. The purpose of this narrative review is to find out the concept of particleboard, the mechanism of particleboard, and the potential for wood and bamboo powder in particleboard applications. The method of creating particleboard was using dehydrated sawdust and bamboo then pouring the powder with adhesive. In this narrative review, there are several types of adhesives which are Polyurethane Resin, Phenol-Formaldehyde (PF), Epoxy, Polystyrene Based Resin (PBR), and Unsaturated Polyester (UP). After molding powder and adhesive mixture, it was hot-pressed to make a particleboard product. Finally, the mixture was tested for the physical and mechanical properties of particleboard products based on Indonesian National Standard. The physical and mechanical properties are increases by particleboard with a proportion of 75%-100% teak wood (T. Grandis) and 25%-50% bamboo. It's known that ironwood has characteristics close to that of the teak species. Therefore, the ironwood and bamboo sawdust has the potential to be used as raw material for particleboard. And the recommended method based on the type of adhesive used is UP.

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Pengaruh Perlakuan Alkalinisasi Serat Alam Kayu Bangkirai (Shorea Laevifolia Endert) pada Sifat Mekanik Komposit dengan Matriks Poliester

Cited by 4 publications

References 2 publications

The Effect of Coffee Husk Waste Addition with Alkalisation Treatment on the Mechanical Properties of Polypropylene Composites

The Effect of Coffee Husk Waste Addition with Alkalisation Treatment on the Mechanical Properties of Polypropylene Composites

Design and manufacturing processes of half face motorcycle palm fiber reinforced composite polymer

Potensi Serbuk Kayu Ulin dan Serbuk Bambu Sebagai Aplikasi Papan Partikel Ramah Lingkungan - Review

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