5, breed of resinous of not saturated polyester and its modified are not saturated polyester colophony has the following variety by GB classification (2-10) seeing a table.

Watch 2-10 colophony classifies schedule

Type

Brief specification

General

G

IG

General mechanical strength

General mechanical strength, dan Naiyan sex compares G model good

Heat-resisting

HE

HM

Be able to bear or endure high fever sex and general mechanical strength

Hear resistance and general mechanical strength wait in

Be able to bear or endure chemical

CEE

CE

CM

Be able to bear or endure well chemical sex and general mechanical strength

Be able to bear or endure well chemical sex and general mechanical strength

Be able to bear or endure mediumly chemical sex and general mechanical strength

Heat-resisting

SE

SM

Tall anti-flammability, general mechanical strength

From extinguish sex, general mechanical strength

Use characteristic function and concerned modified method with respect to each breed, (1) general colophony is general polyester colophony is adjacent benzene colophony commonly, use adjacent benzene namely the commonly used material such as 2 alcohol of 2 acid anhydride, third, glycol synthesizes anhydride of 2 formic acid, suitable fourth benzene, dissolve next in cross-linking monomer styrene. General polyester colophony basically is used at hand paste and eject to shape. Watch 2-11 is listed and general colophony is pouring the basic function of body and glass reinforced plastics, offer reference.

Watch 2-11 general colophony is pouring the basic function of body and glass reinforced plastics

Characteristic

Pouring body

Glass reinforced plastics

Relative to density

Refractive index (ND)

1.1 ～ 1.46

1.53 ～ 1.57

1.6 ～ 1.8

Mechanical intensity

Tensile strength / MPa

The model measures drawing flexibility / GPa

Reduce intensity / MPa

Flexural strength / MPa

Impact strength / (KJ/m²Impact strength / (KJ/m

Rupture percentage elongation / %

Ba Ke

50 ～ 100

2 ～ 4

90 ～ 190

50 ～ 100

10 ～ 50

1 ～ 3

45 ～ 50

220 ～ 290

-

140 ～ 250

200 ～ 400

150 ～ 300

O.9 ～ 1

50 ～ 60

Heat up function

Heat is out of shape temperature / ℃

Thermal conductance / [W/(m? K) ]

Hot coefficient of expansion / ×10<st1:chmetcnv w:st="on" tcsc="0" numbertype="1" negative="True" hasspace="False" source"> of Value="6" Unitname=" ℃^{- 6}℃^{- 1}

Specific heat capacity / [KJ/(kg? ℃ ) ] 50 ～ 80

O.2

80 ～ 100

2.3

100 ～ 200

O.2 ～ O.3

-

3.O

Electric function

Dielectric constant (50Hz)

Dielectric constant (5MHz)

Tangent of horn of interpose report loss is worth

Puncture voltage / (KV/mm)

3.O ～ 4.36

2.8 ～ 4.1

O.02 ～ O.04

18 ～ 22

4.5

O.013 ～ 0.025

16 ～ 28