了得網自然科學_聚合物百科詞典3（J-Q）

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聚合物百科詞典3（J-Q）
該商品所屬分類：自然科學 -> 化學
【市場價】	1192-1728元
【優惠價】	745-1080元
【作者】	美
【所屬類別】	圖書自然科學化學高分子化學（高聚物）
【出版社】	哈爾濱工業大學出版社
【ISBN】	9787560344447
【折扣說明】	一次購物滿999元台幣免運費+贈品一次購物滿2000元台幣95折+免運費+贈品一次購物滿3000元台幣92折+免運費+贈品一次購物滿4000元台幣88折+免運費+贈品
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內容介紹

開本：16開

紙張：膠版紙

包裝：平裝

是否套裝：否

國際標準書號ISBN：9787560344447

叢書名：Springer詞典精選原版繫列

作者：[美]

出版社：哈爾濱工業大學出版社

出版時間：2014年03月

內容簡介

《聚合物百科詞典3(J-Q 英文)》收錄了超過7500個高分子材料方面的術語，包含了高分子科學和工程領域常用的化學品的名稱、工藝、結構式和分析方法。鋻於人體與生命科學的不斷發展，附錄增加了生物化學和微生物方面的詞條。每個詞條方便查找，會提供了一個簡潔的定義，以及相互參照的相關術語。為了說明的更清晰，有的詞條可能給出方程式、化學結構和其它圖示。

在線試讀

North Light n (14c) Light from the north sky, generallythrough a window so located as to allow onlylight from the north to enter the room.Because such light is the more constant throughout the day than light from otherdirections, it was and is preferred by artists, colorists,etc.for viewing color.Artificial north light has been simulated with modern lamps and filters for the same purpose.SeeDaylight.
North StandardSee N.S.
Noryl n Poly(phenylene oxide) Trade name for a fam- ily of blends of polyphenylene oxide ( PPO) with muchless costly styrenic polymers.These blends have theprocessability, low water absorption, and good dielec-tric properties associated with polystyrene, while the PPO contributes heat resistance.Glass-reinforcedgrades are available.Manufactured by General Elec-tric, U.S.
Noryl Resinsn Blends of poly-(2,6-dimethyl-1,4-phenyl oxide) with polystyrene or with high impact polystyrene.
Notch Effect n The effect of the presence of speamennotch or its geometry on the outcome of a test such as an impact strength test of plastics.Notching results in local stresses and accelerates failure in both static and cycling testing (mechanical, ozonecracking, etc.).
Notch Sensitivity n The extent to which a material's tendency to fracture under load, particularly an impact load, is increased by the presence of a surface in homo- geneity such as a notch or sharp inside corner, a suddenchange in section thickness, a crack, or a scratch.Lownotch sensitivity is usually assoaated with ductility,while brittle materials exhibit higher notch sensitivity.Most engineers and physical testers consider the notched lzod andCharpy Impact Tests to be asmuch measures of notch sensitivity and they are of pure impact strength.
Notched lzod See Noticed Izod Impact Energy.Notched lzod Impact See Notched Izod Impact Energy.
Notched lzod Impact EnergyThe energy required to break a notched specimen equal to the difference between the energy in the striking member of theIzod-type impact apparatus at the instant of impact and the energy remaining after complete fracture of the speamen.Note: Energy depends on geometry(e.g., width, depth, shape) of the notch, on the cross-sectional area of the specimen and on the place ofimpact (on the side of the notch or on the opposite side).In some tests notch is made on both sides of the specimen.Also called notched Izod impact strength, notched Izod impact, notched Izod.North Light n (14c) Light from the north sky, generallythrough a window so located as to allow onlylight from the north to enter the room.Because such light is the more constant throughout the day than light from otherdirections, it was and is preferred by artists, colorists,etc.for viewing color.Artificial north light has been simulated with modern lamps and filters for the same purpose.SeeDaylight.

North StandardSee N.S.

Noryl n Poly(phenylene oxide) Trade name for a fam- ily of blends of polyphenylene oxide ( PPO) with muchless costly styrenic polymers.These blends have theprocessability, low water absorption, and good dielec-tric properties associated with polystyrene, while the PPO contributes heat resistance.Glass-reinforcedgrades are available.Manufactured by General Elec-tric, U.S.

Noryl Resinsn Blends of poly-(2,6-dimethyl-1,4-phenyl oxide) with polystyrene or with high impact polystyrene.

Notch Effect n The effect of the presence of speamennotch or its geometry on the outcome of a test such as an impact strength test of plastics.Notching results in local stresses and accelerates failure in both static and cycling testing (mechanical, ozonecracking, etc.).

Notch Sensitivity n The extent to which a material's tendency to fracture under load, particularly an impact load, is increased by the presence of a surface in homo- geneity such as a notch or sharp inside corner, a suddenchange in section thickness, a crack, or a scratch.Lownotch sensitivity is usually assoaated with ductility,while brittle materials exhibit higher notch sensitivity.Most engineers and physical testers consider the notched lzod andCharpy Impact Tests to be asmuch measures of notch sensitivity and they are of pure impact strength.

Notched lzod See Noticed Izod Impact Energy.Notched lzod Impact See Notched Izod Impact Energy.

Notched lzod Impact EnergyThe energy required to break a notched specimen equal to the difference between the energy in the striking member of theIzod-type impact apparatus at the instant of impact and the energy remaining after complete fracture of the speamen.Note: Energy depends on geometry(e.g., width, depth, shape) of the notch, on the cross-sectional area of the specimen and on the place ofimpact (on the side of the notch or on the opposite side).In some tests notch is made on both sides of the specimen.Also called notched Izod impact strength, notched Izod impact, notched Izod.

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