理学研究生英语

502
polymeΒιβλιοθήκη Baidu ,or macromolecule,
Adhesive
characterized by its high molecular
weight，so as it named.
The application of adhesives
Application of adhesives
Problem
Application
Adhesive for construction repairing
How to slove this problem？
In construction repairing ,sometimes only cement and sand can’t provide enough viscosity, so people usually add some adhesive to the cement to improve the bonding ability .
Epoxy adhesive 环氧树脂胶粘剂
Base resin 基体树脂
Curing agent 固化剂
Filler 填料
Topic of my project thesis
“To develop a kind of epoxy adhesive which can cure at room temperature and remain excellent
Application
Adhesive for automobile
How to fix the windscreen?
Polyurethane adhesive is a kind of commonly used adhesive for automobile.Actually ,more than 20 kind of adhesives were needed for more than 40 position for every automoblie on average .
Application
Adhesive for everyday life
transparent adhesive tape
pressure-sensitive adhesive, acrylic ester
glue stick
polyvinyl alcohol
Main components of adhesive
Many problems restrict the application of adhesives,among which the following ones are most remarkable：
Can’t stand in hightemperature Heating needed in curing process
How I plant to carry it out
Three main parts in my research
part
part
part
A
B
C
modification of epoxy
Curing agent
Special filling material
Thank You!
performance at high temperature.”
RT curing
Complete Curing at room temperature in no more than 7 days.
Heat resistant
Exhibit excellently at up to 200—300℃ in long term.
Application
Adhesive for aerospace
Heat resistant layer
To prevent the aeroplane from being burned by the haet caused by friction , adhesive is applied to fix a heat resistant layer on the surface of the plane .
A corner of Polymer
Reporter: Date:April 7th,2011
The family of polymer
Plastic bottles Plastic
Rubber
Tires from Michelin
Coating
Dulux paint
polymer
Fiber
flak jacket