Effects of blowing agent content and injection moulding conditions on selected properties and surface quality of polypropylene moulded parts

Bociąga, E.; Palutkiewicz, P.

doi:10.14314/polimery.2012.038

Cited by 15 publications

(26 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Пористу структуру з малими порами одержують в готовому виробі завдяки якнайшвидшому його охолодженні і затвердженні. В циліндрі екструдера з пороутворювачем до розкладання відбуваються ті ж процеси, що й з полімером, тобто нагрівання, стиснення, гомогенізація і транспортування [1,[4][5][6].…”

Section: аналіз літературних даних та постановка проблемиunclassified

“…Інертні гази та низькокиплячі рідини вводять під тиском безпосередньо в зону дозування циліндра екструдера за допомогою спеціальних дозаторів [1,6,7]. Натомість деякі рідини і тверді тіла змішуються з полімером у традиційний спосіб -перед завантаженням сировини в бункер екструдера або вводяться у полімер ще в процесі його виготовлення.…”

Section: аналіз літературних даних та постановка проблемиunclassified

See 1 more Smart Citation

Efficiency evaluation of manufacturing thin porous shells by extrusion

Томаш

Красінський

Суберляк

et al. 2015

EEJET

View full text Add to dashboard Cite

Section: аналіз літературних даних та постановка проблемиunclassified

Efficiency evaluation of manufacturing thin porous shells by extrusion

Томаш

Красінський

Суберляк

et al. 2015

EEJET

View full text Add to dashboard Cite

“…Blowing agents used in the extrusion process can be divided into physical and chemical [1,2,6,9], however this classification is traditional and not exactly accurate.…”

Section: Aspects Of Cellular Extrusionmentioning

confidence: 99%

“…Porophors used in the cellular extrusion of plastics may have exothermic or endothermic decomposition characteristics [1,2,4]. Porophors used to date usually have exothermic decomposition characteristics.…”

Section: Aspects Of Cellular Extrusionmentioning

confidence: 99%

See 1 more Smart Citation

Porophors Used in the Extrusion Process

Garbacz¹,

Dulebová²

2013

ChChT

View full text Add to dashboard Cite

The high density polyethylene (HDPE) modification by selected agents which are blowing agents during extrusion process, including the determination of modification effect on the selected physical properties and properties of the surface of HPDE extrusion products have been studied. The paper presents specification of the cellular extrusion process of thermoplastics with endothermic chemical blowing agents. The rotational speed of extruder, melt flow rate (MFR) and microscopic structure have been examined.

show abstract

The influence of injection molding parameters and blowing agent addition on selected properties, surface state, and structure of HDPE parts

Bociąga

Palutkiewicz

2012

Polymer Engineering & Sci

Self Cite

View full text Add to dashboard Cite

The investigation of the influence of injection molding parameters (injection velocity, mold temperature and injection temperature, and additionally, as a result of these three parameters change, injection time, hold time, and cooling time) and blowing agent percentage on selected properties of HDPE molded parts such as weight, density, mechanical properties (tensile strength and elongation at maximum force), surface state (gloss and color), and structure was the aim of this work. The examination showed, that the mold temperature has the main influence on properties and surface state of molded parts from solid and foam HDPE. The weight, density, mechanical properties and gloss of molded parts increased with the increase in mold temperature. The mold temperature also influences significantly the number and size of pores in molded parts. The addition of blowing agent in a quantity of 2% is sufficient to obtain parts with favorable mechanical properties and good surface quality. POLYM. ENG. SCI., 53:780-791, 2013. FIG. 8. The change of the tensile strength of molded parts from HDPE: without blowing agent in function of the injection velocity v w and the mold temperature T f (T w ¼ 2308C) (a); the mold temperature T f and the injection temperature T w (v w ¼ 45 mm/s) (b), with 2% addition of blowing agent in function of the injection velocity v w and the mold temperature T f (T w ¼ 2308C) (c); the mold temperature T f and the injection temperature T w (v w ¼ 45 mm/s) (d), with 4% addition of blowing agent in function of the injection velocity v w and the mold temperature T f (T w ¼ 2308C) (e); the mold temperature T f and the injection temperature T w (v w ¼ 45 mm/s) (f).

show abstract

Effects of blowing agent content and injection moulding conditions on selected properties and surface quality of polypropylene moulded parts

Cited by 15 publications

References 0 publications

Efficiency evaluation of manufacturing thin porous shells by extrusion

Efficiency evaluation of manufacturing thin porous shells by extrusion

Porophors Used in the Extrusion Process

The influence of injection molding parameters and blowing agent addition on selected properties, surface state, and structure of HDPE parts

Contact Info

Product

Resources

About