有哪些信誉好的足球投注网站- 1、本文档共26页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
查看更多
CYTEC Why Did My Product Turn Yellow
Why Did My Product Turn Yellow? And
Other Questions You Should Never Need
To Ask
G. Vitarelli, L. Davis, P. Arnaboldi, S. Samuels
Cytec Industries
Pan European Conference on Rotational
Molding, Euro Disney, May 2002
? Where is color change expected?
? Why do plastics form or change color?
? What creates or causes color in plastics?
? What can You do to stop or limit color?
? Who can help?
Pan European Conference- Paris - 05. 2002
?2002 Cytec Industries Inc., All Rights Reserved
Color in Polyolefins
? YELLOWING
? PINKING
? BLACK SPECKS
? FADING
? COLOR CHANGE
Pan European Conference- Paris - 05. 2002
?2002 Cytec Industries Inc., All Rights Reserved
Resin
? Polymer
? Density
? Melt index
? Catalyst
Pan European Conference- Paris - 05. 2002
?2002 Cytec Industries Inc., All Rights Reserved
Additives
? Antioxidant (AO)
? Ultraviolet Light Stabilizer (UV)
? Antacid
? Modifier
? Pigment
Pan European Conference- Paris - 05. 2002
?2002 Cytec Industries Inc., All Rights Reserved
Color From Primary AO
? AO + AO
? AO + NOx + HALS
? AO + metal ion (from pigment or catalyst)
? AO from cardboard box
? PINKING or YELLOWING
Pan European Conference- Paris - 05. 2002
?2002 Cytec Industries Inc., All Rights Reserved
Color from Coupling of BHT
OH O
O
O
Pan European Conference- Paris - 05. 2002
?2002 Cytec Industries Inc., All Rights Reserved
Color from Oxidative Coupling of AO
OH
CO2R
O
CO2R
CO2R
O
O
CO2R
CO2R
O
Oxidative
Coupling
Red color
Base
AO 1010 R=neopentyl
AO 1076 R=C18H37
Pan European Conference- Paris - 05. 2002
?2002 Cytec Industries Inc., All Rights Reserved
Antioxidants Resistant to
Discoloration
OH
R
3
AO 1790
OH
R 3
AO 1741
N
N
N
O
O O
R=
Pan European Conference- Paris - 05. 2002
?2002 Cytec Industries Inc., All Rights Reserved
NOx Catalyzes Oxidation of Phenols
R
OH
R R
O
R
NO
O
R R+NOx -NO
O
R R
2
O
R
R
O
R
R
Pan European Conference- Paris - 05. 2002
?2002 Cytec Industries Inc., All Rights Reserved
Oxidation of Nondiscoloring AO by
NOx
R
OH
R
R
R
O
R
NO
R
O
R R
您可能关注的文档
- cigarette smoke extract induces oxidative stress and apoptosis in human lung fibroblasts.pdf
- Circumstellar discs around solar-mass stars in NGC 6611.pdf
- Cisco7018---机架标准.pdf
- CitectSCADA 7.20 Service Pack 1 - Release Notes.pdf
- CLAA070VA01.pdf
- Class Description.pdf
- Classical Mechanics without Absolute Space.pdf
- Classification of Color Edges in Video into Shadow-Geometry.pdf
- Classification of operator algebraic conformal field theories.pdf
- Clear Water Bay, Kowloon.pdf
文档评论（0）