Curing kinetics and optimal cure schedules for underfill materials

Hsu, D. T.; Kim, H.K; Shi, Frank G.; Tong, Hui; Chungpaiboonpatana, S.; Davidson, C.L.; Adams, Judith

doi:10.1016/s0026-2692(99)00143-3

Cited by 12 publications

(5 citation statements)

References 7 publications

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“…[18] The factors such as better bonding between particles and matrix, high modulus, long service life, less moisture absorption, and low stress have to be considered in order to study the biowaste filled polymer composites. [19,20] In biowaste filled polymer composites the bonding between the surfaces of fillers and matrix is very much essential because the mechanical resistance of polymer composites depends mainly on interfacial properties, also the stress concentration occurs in this region due to the difference between the properties of fillers and matrix. [21] As a result, the prepared composites show poor mechanical, thermal, and wear properties.…”

Section: Introductionmentioning

confidence: 99%

Raw and chemically treated bio‐waste filled (Limonia acidissima shell powder) vinyl ester composites: Physical, mechanical, moisture absorption properties, and microstructure analysis

Setty

Goud²,

Rangappa

et al. 2020

Vinyl Additive Technology

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The rapid growth of environmentally sustainable and eco-friendly materials tends to the utilization of biowastes as filler in polymer matrix composites. The particulate composite with improved wettability of fillers and advanced approach can evolve polymer composites that exhibit promising applications in packaging, automobile, marine, construction, and aerospace. In the present work, one of the biowaste fillers were synthesized from Limonia acidissima shells via a top-down approach (pulverizing) and the surfaces were chemically modified using sodium hydroxide (NaOH) before they were used as fillers in vinyl ester polymer composites by different weight percentage (0, 5, 10, 15, and 20 wt%). The prepared particulate composites were characterized by mechanical properties, moisture absorption behavior, and morphology. At different filler loading the tensile strength, tensile modulus, flexural strength, flexural modulus, impact strength, hardness, density, and moisture intake tests were performed. The results reveal that the properties increased for composites filled with alkaline treated fillers for the same filler loading and found to be higher at filler loading of 15 wt%. The morphological analysis confirms the better interfacial bonding between alkali-treated particles and matrix due to the removal of non-cellulose materials from the surface of the particles.

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Section: Introductionmentioning

confidence: 99%

Raw and chemically treated bio‐waste filled (Limonia acidissima shell powder) vinyl ester composites: Physical, mechanical, moisture absorption properties, and microstructure analysis

Setty

Goud²,

Rangappa

et al. 2020

Vinyl Additive Technology

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show abstract

“…The mechanical properties of bio fillers filled composite varied considerably depending on the strength, stiffness of fiber composite, physical, chemical, composition of material, type of raw fibers or particulates, and growth environment. In studying bio filled polymer composites, the factors that have to consider are good adhesion between filler and matrix, high modulus, low stress, low moisture absorption, high durability, and long life time . Popa et al emphasized that the interface between the filler or reinforcing material and the polymeric matrix is essential in polymeric composites.…”

Section: Introductionmentioning

confidence: 99%

A comparative investigation of bio waste filler (wood apple‐coconut) reinforced polymer composites

2013

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During the last century natural fibers are used as reinforcement in polymer composite has been continuously growing in the composite industry. This polymer matrix composite has wide range of application in hostile environment where it is exposed to external attacks such as solid particle erosion. The mechanical properties of different polymer composites are also most important characteristics. An attempt has been made to compare the mechanical and tribological properties of the both biowaste wood apple and coconut shell particulate polymer matrix composite. The results show that maximum flexural strength is obtained 78.19 MPa for wood apple shell and 68.25 MPa for coconut shell at 15 wt% filler content. The wood apple particulate composite shows best erosion and mechanical properties than coconut particulate composite.

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“…13 It has to be significantly above the maximum test temperature to avoid relaxation. At temperatures above T g , the ability of the adhesive to maintain compression on the conductive particles is reduced or lost (i.e., the adhesive relaxes).…”

Section: Resultsmentioning

confidence: 99%

Curing kinetics of anisotropic conductive adhesive film

Chan

Uddin

Alam

et al. 2003

Journal of Elec Materi

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Polymer-based conductive-adhesive materials have become widely used in many electronic packaging interconnect applications, such as chip-on-glass, chip-on-flex, etc. Among all the conductive-adhesive materials, anisotropic conductive adhesive film (ACF) is an attractive interconnect material because of its fine pitch capability. Anisotropic conductive-adhesive film is a thermosetting, epoxy matrix impregnated with a small amount of electrically conductive particles. During component assembly, the epoxy resin is cured to provide mechanical connection, and the conducting medium provides electrical connection in the z direction. The thermal cure process is critical to develop the ultimate electrical and mechanical properties of the ACF. In this paper, the curing reaction of ACF was studied with a differential scanning calorimeter (DSC) under isothermal conditions in the range of 120-180°C. An autocatalyzed kinetic model was used to describe the curing reaction. The rate constant and the reaction orders were determined and used to predict the progress of the curing reaction. A good agreement is found between the proposed kinetic model and the experimental reaction-rate data. The reaction-rate constants were correlated with the isothermal temperature by the Arrhenius equation. The glass-transition temperature also has been studied as a function of cure degree and moisture absorption.

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Curing kinetics and optimal cure schedules for underfill materials

Cited by 12 publications

References 7 publications

Raw and chemically treated bio‐waste filled (Limonia acidissima shell powder) vinyl ester composites: Physical, mechanical, moisture absorption properties, and microstructure analysis

Raw and chemically treated bio‐waste filled (Limonia acidissima shell powder) vinyl ester composites: Physical, mechanical, moisture absorption properties, and microstructure analysis

A comparative investigation of bio waste filler (wood apple‐coconut) reinforced polymer composites

Curing kinetics of anisotropic conductive adhesive film

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