与 «POLYETHENE»相关的英语书籍
在以下的参考文献中发现
polyethene的用法。与
polyethene相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Salters GCSE Science: Y11
The discovery of polyethene Reg Gibson and Eric Fawcett were two chemists
working for ICI in the 1930s. They were trying to develop new dyes by reacting
carbon compounds together in high pressure apparatus. They sometimes used ...
2
How it Works: Science and Technology
A Plastic bag production uses a molten film of polyethene that is extruded
through a thin rectangular orifice. A current of film is passed through the film to
expand it into a tube. It is then cut to size and heat sealed at one end to form bags
.
Marshall Cavendish Corporation,
2003
3
An Introduction to Thermogeology: Ground Source Heating and ...
When specifying the dimensions of polyethene pipe, we commonly come across
several key terms. The following terms specify the dimension of the pipe.
Standard polyethene pipe dimensions are 20-, 25-, 32-, 40-, 50-, 63-, 75- and 90-
mm ...
4
New Radiant Science (integrated Science)
2. They are bad conductors of heat and electricity. 3. They may be transparent,
translucent or opaque. 4. They can be moulded into any shape when hot. 4.3
Some Commercially Important Plastics (i) Polyethene (polyethylene) (-CH2-CHr)
n As ...
5
Electricity and Thermal Physics
It will bounce like a glass marble, but will shatter if hit too hard. amorphous, e.g.
Perspex (thermoplastic) or Melamine (thermoset) semicrystalline, e.g. polyethene
elastomer, e.g. rubber Strain Around the glass transition temperature, you can ...
Mark Ellse, Chris Honeywill,
2004
6
Science of Synthesis: Houben-Weyl Methods of Molecular ...
... borohydride 153 Phillips catalysts, for polymerization of ethene, polyethene
synthesis 701, 702 Phosphinates, Æ-hydroxy, hydroxy group deoxygenation, via
conversion into methyl oxalates, then radical reduction using tributyltin hydride
221 ...
Mark S. Baird, Daniel Bellus, Nicola Chessum,
2014
7
Materials for Conservation
Polyethene (Figure 6.1) is made by polymerizing ethene gas. Two main forms are
made: a highly branched, low-density polyethene (LDPE) and a more uniform,
high-density polyethene (HDPE) (Peacock, 2000). When the chains in PE are ...
8
The Age of the Molecule
The simplest carbon polymer is also one of the most familiar - polythene, or more
correctly polyethene - and the constituent monomers are ethene molecules.
Polyethene consists of a string of linked carbon atoms with each carbon joined to
...
9
Chemistry: The Practical Science
H H C C Polymerize H H H H C H H C H C C H H H n Polyethene (polyethylene)
Polyethene, which is more commonly known as polyethylene, is an example of a
polymer(literally, “many units”), a compound composed of large molecules ...
Paul B. Kelter, Michael D. Mosher, Andrew Scott,
2008
Ethene polymerises to form polyethene ... . which is an important plastics material
The first polymerisation of cthcnc was accomplished in 1933 by the use of very
high pressure (1000 atm) and oxygen as the catalyst. A free radical mechanism ...
包含词语«POLYETHENE»的新条目
找出国内和国际出版社所讨论的内容，以及词语
polyethene在以下新条目的上下文中是如何使用的。
Jute department seeks DoE's help to stop polythene bag production
The Department of Jute has sought the Department of Environment's help in stopping the production of polyethene or poly bags and sacks in ... «DhakaTribune, 七月 15»
Of 261 unclaimed bodies
... shadow of this veiled threat, Edhi staff engage in the business side of their work: a man shuffles in, carrying four bright blue polyethene bags. «The News on Sunday, 七月 15»
14-Year-Old Minor Girl Brutally Raped; Bottle Caps, Wood Found …
The outrageous factor which would leave everyone with fearfulness is that doctors found a piece of cloth, polyethene bags, bottle caps, ... «All India Roundup, 六月 15»
Uganda gets tougher on polythene
Kampala City Traders Association (KACITA) has asked its members to surrender all stocks of the banned ploymers and polyethene bags ... «East African Business Week, 六月 15»
Reality Farmville: Now Grow Veggies on your Terrace!
The Horticulture Department will supply all the necessary materials including seeds, manure, crates, polyethene sheets, and water sprinkler at ... «The New Indian Express, 四月 15»
Kaveera ban beset by political interference
This case of mixed messages is typical of the politics sorrounding the ban of polyethene bags, which led to an earlier 2009 ban not being ... «NTV Uganda, 四月 15»
Manufacturers want ban on kaveera halted
... (UPMRA) have petitioned President Yoweri Museveni asking government to halt the ban on use of polyethene bags (kaveera) in the country. «New Vision, 四月 15»
Construction for Visakha Utsav at Beach Despite CM's Warning
“The Beach Road which was seen disfigured with open drains, littered all over with waste, polyethene bags and animal debris in the recent ... «The New Indian Express, 一月 15»
Art-sourcing and the X-mas Tree
... executive housekeeper, The Leela Palace, says they have imported a 12-feet white Christmas Tree made out of polyethene, from Singapore. «The New Indian Express, 十二月 14»
Baby found in garbage bin in Kpando
The woman told hospital officials she traced the sound of the baby's cry to a polyethene bag in which she was tied. The baby is said to be in ... «GhanaWeb, 十二月 14»