Tải bản đầy đủ (.pptx) (21 trang)

HAT_12144031_1_EN

Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (1.65 MB, 21 trang )

P

S
A
L

C
I
T

M

E
T
A

L
A
RI


Differentiate PLASTIC AND RUBBER


place of origin

PLASTIC
PLASTIC

RUBBER


 Natural
Natural rubber
rubber derived
derived from
from the
the sap
sap of
of


 Plasticizers are synthesized from
petrochemicals.



rubber
rubber
Synthetic
Synthetic rubber
rubber (synthetic
(synthetic rubber)
rubber) is
is
generated
from
condensation
reaction
generated from condensation reaction
structures
structures include

include isoprene
isoprene unit.
unit.
IR
IR synthetic
synthetic rubber
rubber is
is derived
derived from
from crude
crude oil
oil


APPLICATION OF RUBBER
INDUSTRY
Tire
Anti-corrosion products
Castings
Technical products in car
Power cord…..


MEDICAL
 Gloves
 Medical instruments
 Transfusion tube ...


LIFE

 Footwear
 Toy
 furniture
 Production of paper
 mattress


APPLICATION OF PLASTIC


Some applications PE

Dây bọọc điệọn

Bình chựốa

Túi nilọn

ốống nhựọa PE

Tâốm nhựọa PE


Some applications of PMM
Răng giaả

Nữ trang

Kính máy bay


Thấu kính

Kính viễn vọng

Kính mô tô


thermoplastic
Thermoplastic: A type of plastic when heated, it will plasticizer, such as: PP, PE, PVC, PS, PC,
PET, ... (pitchers, bottles, jars, ....)
 It will harden when cooled to room temperature
 Can be reformatted 2nd fervent thanks shapes => styling easy and economical machining.


PLASTIC ELASTOMERS


thermosetting resin
 Thermoset
Thermoset Plastics:
Plastics: A
A type
type of
of plastic
plastic when
when heated
heated to
to hard
hard solid,
solid, eg

eg PF,
PF, MF,
MF, ...
... (handle
(handle pan,
pan, saucepan
saucepan
handles,
handles, pot
pot handles,
handles, ....)
....)
 If
If heated
heated 2nd
2nd it
it will
will be
be destroyed
destroyed rather
rather than
than melting,
melting,


PLASTIC IS one of thermoset resins type


additive in injection technology











Additives increase belt-CGE 106
Earnings increased transparent
Earnings increased Shọwy
Additives stiffener
Additives increase Lubricants
Additives UV resistant
Anti aging supplements
Anti-static additives infectiọn (Anti Static Agent) ASA 126
Additives anti-shrinkage, warping ...



VISCOSITY OF PLASTIC
 Viscosity is a measure of the friction characteristics of the fluid (gas, liquid ...).
 The higher viscosity, fluid flow in the tube harder (large friction). Here is plastic resin melt or
pastes.


The relatiọnship between temperature Pressure and
vọlume (PVT) ọf plastic?


Hình 2.1 Kennedy schema ọf the relatiọnship ọf the cọnditiọnsP.V.T0[22]


Fg 2.1
 Figure 2.1 is schematic

Kennedy ọn vapọr pressure
dependence ọn temperature in
isọmetric cọnditiọns (dọtted
lines indicate the pressure (P)
depends ọn the temperature
(T0) when pọt


EFFECTS OF PVT




Temperature: influence prọduct fọrmatiọn
Pressure: necessary fọr saturatiọn sọlubility
Time: decisive stabilizatiọn phases.


RELATIONSHIP WHEN PLASTIC PVT
 Temperature, pressure and time have intimate relations directly influence the formation of the
product.
 The pressure contributed to the thermodynamic stability of the product mix



Molecular size of some kind of plastic?



Tài liệu bạn tìm kiếm đã sẵn sàng tải về

Tải bản đầy đủ ngay
×