An experimental comparative study between polypropylene and laminated lower limb prosthetic socket
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Polypropylene
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This specification establishes requirements and test methods for materials, impact strength, appearance, surface flame spread, and windload resistance of siding products manufactured from polypropylene material. The use of polypropylene recycled plastic in this product shall conform to the specified requirements. The siding shall be made principally of polypropylene compound, prepared from polypropylene homopolymer or copolymer. The polypropylene compound shall be compounded so as to provide the heat stability and weather exposure stability required for the siding market application.
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Growth in polypropylene usage as a cost effective replacement of engineering polymers polypropylene - structure, properties, applications chemical coupling agents for filled and GR-PP composites stabilization of flame retarded polypropylene effects of processing and microstructuring in recycled polypropylene and its blends impact behaviour of polypropylene, its blends and composites plastomers as polypropylene impact modifiers talc filled polypropylene glass fibre reinforced polypropylene functionalization of polypropylene using twin screw extruders engineered interphases in polypropylene composites mega-coupled polypropylene composites of glass fibres characterization of long term creep-fatigue behaviour for glass reinforced polypropylene.
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Talc
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Abstract An investigation of the effect of sample dimensions on the oxidation of polypropylene is described. The results are used to select testing conditions. Two examples of the utility of the method are presented. First, a control method for uninhibited polypropylene and, secondly, an investigation of the synergistic effect between 2,6‐di‐t‐butyl‐p‐cresol and dilaurylthiodipropionate.
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This specification establishes requirements and test methods for materials, impact strength, appearance, surface flame spread, and windload resistance of siding products manufactured from polypropylene material. The use of polypropylene recycled plastic in this product shall conform to the specified requirements. The siding shall be made principally of polypropylene compound, prepared from polypropylene homopolymer or copolymer. The polypropylene compound shall be compounded so as to provide the heat stability and weather exposure stability required for the siding market application.
Polypropylene
Thermal Stability
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In this book the reader can explore how additives and fillers have been employed as a mean to improve polypropylene properties: mechanical,fluid and resistance to photodegradation. This book explores common properties, advantages and drawbacks of polypropylene, and the means that researchers have been studying as a manner of solve the main disadvantages of polypropylene by the use of additives such as nanoparticles, blend compatibilizers, hindered amine light stabilizers (HALS). These materials have been proved succesful to mantain polypropylene as a top choice in the field of thermoplastics.
Polypropylene
Photodegradation
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For increasing the toughness of polypropylene and expanding its applications,the modification mechanism polypropylene is discussed in this paper, and the inorganic particles (calcium carbonate)and organic plastic materials (polyethylene St) are used to modify the polypropylene in this article.The characterization of the polypropylene modified by calcium carbonate and St-modified shows much better toughness and mechanical strength than the pure polypropylene.
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Characterization
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In this paper,various behavior of homo-polypropylene and co-polypropylene were studied,including thermo-oxidant aging,stress white,post shrinkage after different treatment conditions,and dyeing.After thermo-oxidant aging,the impact strength of homo-polypropylene decreased remarkably,however,that of co-polypropylene increased up to 200 % at first,and then decreased slowly.The resistance to stress whitening of homo-polypropylene was better than that of co-polypropylene.After heat treatment and boiled in water,the post shrinkage of polypropylene with high crystallinity was lower than that of polypropylene with low crystallinity.When the blackness of polypropylene was larger,the hue was more bluish.
Polypropylene
Shrinkage
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This specification establishes requirements and test methods for materials, impact strength, appearance, surface flame spread, and windload resistance of siding products manufactured from polypropylene material. The use of polypropylene recycled plastic in this product shall conform to the specified requirements. The siding shall be made principally of polypropylene compound, prepared from polypropylene homopolymer or copolymer. The polypropylene compound shall be compounded so as to provide the heat stability and weather exposure stability required for the siding market application.
Polypropylene
Thermal Stability
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This specification establishes requirements and test methods for materials, impact strength, appearance, surface flame spread, and windload resistance of siding products manufactured from polypropylene material. The use of polypropylene recycled plastic in this product shall conform to the specified requirements. The siding shall be made principally of polypropylene compound, prepared from polypropylene homopolymer or copolymer. The polypropylene compound shall be compounded so as to provide the heat stability and weather exposure stability required for the siding market application.
Polypropylene
Thermal Stability
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Бұл зерттеужұмысындaКaно моделітурaлы жәнеоғaн қaтыстытолықмәліметберілгенжәнеуниверситетстуденттерінебaғыттaлғaн қолдaнбaлы (кейстік)зерттеужүргізілген.АхметЯссaуи университетініңстуденттеріүшін Кaно моделіқолдaнылғaн, олaрдың жоғaры білімберусaпaсынa қоятынмaңыздытaлaптaры, яғнисaпaлық қaжеттіліктері,олaрдың мaңыздылығытурaлы жәнесaпaлық қaжеттіліктерінеқaтыстыөз университетінқaлaй бaғaлaйтындығытурaлы сұрaқтaр қойылғaн. Осы зерттеудіңмaқсaты АхметЯсaуи университетіндетуризмменеджментіжәнеқaржы бaкaлaвриaт бaғдaрлaмaлaрыныңсaпaсынa қaтыстыстуденттердіңқaжеттіліктерінaнықтaу, студенттердіңқaнaғaттaну, қaнaғaттaнбaу дәрежелерінбелгілеу,білімберусaпaсын aнықтaу мен жетілдіружолдaрын тaлдaу болыптaбылaды. Осы мaқсaтқaжетуүшін, ең aлдыменКaно сaуaлнaмaсы түзіліп,116 студенткеқолдaнылдыжәнебілімберугежәнеоның сaпaсынa қaтыстыстуденттердіңтaлaптaры мен қaжеттіліктерітоптықжұмыстaрaрқылыaнықтaлды. Екіншіден,бұл aнықтaлғaн тaлaптaр мен қaжеттіліктерКaно бaғaлaу кестесіменжіктелді.Осылaйшa, сaпa тaлaптaры төрт сaнaтқa бөлінді:болуытиіс, бір өлшемді,тaртымдыжәнебейтaрaп.Соңындa,қaнaғaттaну мен қaнaғaттaнбaудың мәндеріесептелдіжәнестуденттердіңқaнaғaттaну мен қaнaғaттaнбaу деңгейлерінжоғaрылaту мен төмендетудеосытaлaптaр мен қaжеттіліктердіңрөліaйқын aнықтaлды.Түйінсөздер:сaпa, сaпaлық қaжеттіліктер,білімберусaпaсы, Кaно моделі.
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