000			03399nam a22003257a 4500
003			OSt
005			20250708135812.0
008			250708b |||||||| |||| 00| 0 eng d
040			_aTUPM _bEnglish _cTUPM _dTUPM _erda
050			_aBTH TP 949 _bB86 2025
100			_aBumanglag, Angel Iyanla P. _eauthor
245			_aUtilization of chicken eggshells as an alternative material for sintra board/ _cAngel Iyanla P. Bumanglag, Sandra Mae G. De Serra, Vanessa Unice T. Gonzales, Kyle Angelo B. Languayan, and Jenina Franchezka F. Lardizabal.--
260			_aManila: _bTechnological University of the Philippines, _c2025.
300			_axi, 91pages: _c29cm.
336			_2rdacontent
337			_2rdamedia
338			_2rdacarrier
500			_aBachelor's thesis
502			_aCollege of Industrial Technology.-- _bBachelor of technology major in print media technology: _cTechnological University of the Philippines, _d2025.
504			_aIncludes bibliographic references and index.
520			_aThe project study, “Utilization of Chicken eggshell as an Alternative Material for Sintra board”, aims to produce chicken eggshell based boards that can become a substitute to the typical Sintra board. The use of chicken eggshells as an innovative & eco-friendly alternative to PVC can help reduce excessive plastic usage in the printing industry. Chicken eggshells can be widely found in the Philippines; in this regard, the eggshells used in this study were collected within Metro Manila and Cavite. The eggshells were gathered and processed in stages, including washing, sun drying, crushing, grinding, sifting, powderizing, mixing, molding, curing, and sanding. Epoxy resin and cornstarch were used as the primary binding agents and microsphere as additive to make the board lightweight. Three different formulations of the eggshell-based Sintra board were produced, each measuring 8.3" x 11.7" (A4 size) with a thickness of 3 millimeters. The formulations underwent ASTM standard tests to evaluate the quality of the material. Formulation A (FA), composed of Eggshell (35%), Epoxy Resin (50%), Cornstarch (5%), and Microsphere (10%), received the highest ratings in terms of tensile strength, flexural strength, peel adhesion, chemical resistance, and performance in the thermal expansion test. The same formulation demonstrated quality performance in sticker application and UV printing, and was presented to the survey respondents as a finished product for evaluation. The project was evaluated by 35 respondents composed of PMT students and PMT professors of the Technological University of the Philippines and printing professionals that are within Metro Manila. The project study was rated with an overall mean of 4.65 with a descriptive rating of “Highly Acceptable.” This study succeeded to produce a standard and performance-tested chicken eggshell based Sintra board as an eco-friendly alternative to common Sintra board, contributing to the ongoing search for environmentally friendly materials in the printing industry.
650			_aEggshell-based
650			_aPrinting substrate
650			_aSintra board
700			_aDe Serra, Sandra Mae G. _eauthor
700			_aGonzales, Vanessa Unice T. _eauthor
700			_aLanguayan, Kyle Angelo B. _eauthor
700			_aLardizabal, Jenina Franchezka F. _eauthor
942			_2lcc _cBTH CIT _n0
999			_c30210 _d30210