
810——(underwater、fast)
Epoxy Curing Agent
With the development of our nation's economic
construction, more and more epoxy resins are needed under
humidity or water. However,epoxy binders compounded by
ordinary epoxy curing agents aren't effective enough.
The epoxy binder compoun-ded by 810-underwater epoxy curing
agent can be solidified and bonded no
t
only in the air but also under moisture or water. Such
bond and the cohesional strength of concrete go beyond
the demands of common water conservancy project, thus
this curing ag-ent is applied to the defect disposal of
buildings like dams, tunnels, water pipelines, pools,
aqueducts, civil air defense projects and the underwater
bond of other ce-ment products. In recent years,it is
widely used in the field of metallurgy,smelting,mining
machine manufactu-re,molding,military antisepsis and underground
cable,etc. This curing agent can be used under conditions
like under water, moisture, dryness,low temperature(under
0 centi-grade) and normal temperature and has good underwater
cohesional strength so it can meet the demands of underwater
construction projects and winter construc-tion. With low
toxicity(LD>5000mg/kg), this curing agent is slightly
poiso-nous or actually nonpoisonous and has the features
of heat and cold resistance. The technological and economic
benefit of its application are both notable.
I.Technological
Standards: (Q/ABEB
002-2000)
Product standards of810-underwater epoxy
curing agent:
Appearance: brown and sticky, translucent
liquid
Amine value:350-410mgKOH/g
Viscosity:3-6Pa·s(25℃)
Specific gravity:1.056-1.150(20℃)
Freezing point:below -14℃
Saturated steam pressure:3.09Pa(25℃)
Toxicity:LD50>5000mg/kg
Polyamine——105
Epoxy Resin Curing Agent
With low toxicity, Polyamine-105
can be solidified under normal temperature and is easy
to use. The epoxy resin made up by this product has a
bright and clean appearance,no blooming,good sealing,low
accessibility,a higher distortion tempe-rature and shear
strength. Its electrical function (like insulation) and
abra-sion performance are particularly excellent.Therefore,
this product is generally used in pouring, laminating,
sealing,bonding and abrasive coating,especially the sealing
of electrical equipment,the sealing and pouring of water
purification f-ilm,the slideway of machine tool as well
a
s
the abrasive and anticorrosive pat-ching material for
mechanical and chemical equipment.
I. Performance:
Q/ABEB 001-2000
Appearance: jasmine,transparent,sticky liquid
Amine value: approx 550 viscosity500-1,000
Toxicity:LD50>3493mg/kg
Steam pressure: 5.012×10-5mmHg(25℃)
Condition of cure:ambient temperature,better
curing performance under medium te-mperature(80℃/3h or
100℃/2h)
sable life: blended with 618# epoxy resin
at 25℃, 30 minutes of usable life
II.Product performance:
Apart from the performance of acid,alkali
and salt fastness as the ordinary epoxy resin products,its
mechanical and electrical functions are as follows:
| formula
Num |
I |
II |
III |
IV |
| 711#epoxy
resin |
100 |
- |
- |
- |
| 618#epoxy
resin |
- |
100 |
100 |
100 |
| 105 |
45 |
30 |
30 |
30 |
| dibutyl
phthalate |
- |
5 |
- |
- |
| condition
of cure |
30℃/3days |
3℃/3days |
30℃/1day
100℃/2h |
30℃/1day+80℃/3h |
| impact
strength kg.cm/cm2 |
17.9 |
14 |
31.3 |
119 |
| Martin's
temperature ℃ |
56.5 |
50 |
102 |
- |
| bending
strength kg/cm2 |
1536 |
870 |
1210 |
- |
| tensile
strength kg/cm2 |
756.3 |
584 |
910 |
2940 |
| compression
strength kg/cm2 |
1318.3 |
1237 |
1150 |
- |
| Brinell
hardness kg/cm2 |
1590 |
1490 |
1546 |
- |
| surface
resistance Ω |
6.3×1014 |
6.0×1015 |
- |
- |
| volume
resistivity Ω.cm |
1.6×1016 |
5.5×1016 |
1.5×1016 |
- |
| dielectric
constant |
3.5 |
3.4 |
3.4 |
- |
| dielectric
loss tangent |
2.9×10-2 |
2.5×10-2 |
4.2×10-2 |
- |
| breakdown
potential KV/mm |
23 |
22 |
27.7 |
- |
Note:
1.N is glass fibre reinforced plastic formed by handpaste
(glue percentage 45%-50%).
2. Formula is a ratio of weight.
The follow is the product performance in
the abrasive coating of machine tool slideway:
| determination
item |
preset
index |
prediction
data |
comparative
product TF-1 (Germany) |
| shearing
kg/cm2 |
>50 |
180.5 |
45 |
| heterogeneous
breaking strength |
>5 |
8.7 |
- |
| impact
strength kg.cm/cm2 |
>2 |
8.2 |
- |
| Brinell
hardness |
>15 |
16.9 |
- |
| abrasion(width) |
<3.5 |
2.0 |
3.7-4.4 |
| friction
factor |
<0.05 |
0.0391 |
0.05-0.08 |
800
Epoxy Resin Curing Agent
As a kind of modified amine curing agent
with low toxicity and volatility, 800 epoxy resin curing
agent can be fully solidified under moisture and low temp-erature.
After its solidification, the product has the features
of heat and cold resistance and good flexibility.This
product can be applied to chemical indu-stry,metallurgy,construction
anticorrosion,mechanic mold,epoxy antisepsis coat-ing,the
production of glass fiber reinforced plastic and adhesion
agent,grouting and blockage of water conservancy and water
electricity.
I. Product performance:
Appearance: brown, sticky liquid
Viscosity:(mpa·s):3000-6000
Amine value:(mgKOH/g):360-420
Toxicity:LD50>3690·mg/kg·bw
810
Epoxy Resin Curing Agent810
Developed by our institute, 810 epoxy resin
curing agent is specially used in the field of anticorrosion.
With low toxicity,good acid and alkali fastness, wi-de
scope of heat resistance and wet fastness, this curing
agent can completely solidify epoxy resin under conditions
like low temperature,humidity, ambient te-mperature with
dryness and under water. With its excellent performance,
the ag-ent is widely used in chemical mine,metallurgy
and smelting,mechanical elec-tric power,construction,water
conservancy and water electricity, various epoxy anti-sepsis
coating, the making of glass fibre reinforced plastic,adhesive
and seal-ing material,grouting and blockage.
I. Technological
standards:
Appearance: brown red,translucent,sticky
liquid
Amine value: 380-450(mgKOH/g)
Viscosity: 3-6pa·s/25℃
Freezing point:below -14℃
Toxicity: LD50>5000·mg/kg(slightly poisonous
or actually non-poisonous)
Condition of cure: ambient 12h-24h
II.Mechanical performance:
Colloid compression strength>83Mpa
Colloid tensile strength>28Mpa
Underwater cohesional strength: The "8"
shape test parts of cement sand mortar is 2.6Mpa; In normal
condition, it is 1.5-2.6Mpa, the tensile strength of sticked
glass cloth : 100-134.8Mpa
Modulus of elasticity:3136Mpa
Metal plane butt tensile strength:Mpa
| materials
bonded |
average
plane butt tensile strength |
| 45#steel/45#steel |
23.92 |
| |
23.18 |
| red
copper/red copper |
25.81 |
| stainless
steel/stainless steel |
26.08 |
| 48#steel/45#steel |
(underwater)17.56 |
| 48#steel/45#steel |
(810
stored for one year) 25.09 |
Constant temperature heat test:After 360
hours at 60℃ and 95% relative humidi-ty, the agent shows
no decline of tensile strength, which proves its good
heat-resistance.
Circulating freeze-thaw test: Freezed in
fridge at -20±2℃ and thawed at ambie-nt temperature (about
35℃)for 864 hours, the agent has no decline of tensile
strength after 69 circulating tests, which indicates its
good cold-resistance.
50
Modified Amine Epoxy Curing Agent
This agent,one of our new amine curing products,
has a
lower
freezing point,a higher boiling point and good fluidity
and it is easy to use.Its performance is superior to xylylene
amine and ethylenediamine. An ideal epoxy resin curing
age-nt with low toxicity, this product is applied to the
manufacture of glass fiber reinforced plastic,the inside
antisepsis coating of gaint equipment, plastic mo-ld and
sealing material of electric equipment.
Main
Physical Constant of A50 Modified Amine
| specific gravity:1.054
|
diopter:1.5603
|
| viscosity:16CP
|
freezing
point:<-14℃ |
A60
Epoxy Resin Curing Agent
As a kind of modified amine curing agent
with low toxicity, A60 curing agent has a light color,
low viscosity, easy operation and medium curing speed.
Meanwhile, it also has a long molecular chain, a high
boiling point, low volatility and to-xicity and the toughness
and electrical performance of the condensate are exce-llent.
Appearance:jasmine,transparent liquid
Viscosity:mpa·s ≥100
Amine value:mgKOH/g 430-480
Toxicity:LD50 > 3106mg/kg·bw(low toxicity)
Being an epoxy resin curing agent of ambient
temperature, A60 curing agent is used to compound epoxy
coating,antisepsis coating,adhesion agent and to produce
glass fiber reinforced plastic, casting mold and the sealing
material of elec-tronics and electrical equipment. The
normal dosage is 20%-28% of epoxy resin.
Conditions of cure: 48 hours at normal temperature
(60℃ is preferable),solidified for 4 hours
A70
Epoxy Resin Curing Agent
As a modified amine epoxy resin curing agent
with low viscosity, A70 curing ag-ent has the features
of low toxicity, strong toughness,shiny appearance, good
sealing performance and long application period. It is
applied to various kinds of pouring sealants for electronic
and electrical equipments,accumulator and ca-pacitor,etc.
It is the most preferable material for epoxy pouring material
and can be used in the manufacture of coating and glass
fibre reinforced plastic.
Appearance:jasmine to brown yellow,transparent
liquid
Viscosity:(mPa·s)50-100
Amine value:(mgKOH/g) 480-550
100g E51 epoxy resin with 30-80g A70(reducing
the dosage if adding other accessory ingredients)
Application period(100g):ambient temperature(25℃),over
1h (25℃),24-48h或60℃ 4h
Time and conditions of cure: ambient temperature
(25℃),24-48h or 60℃ 4h
T31
Modified Epoxy Curing Agent
Modified by phenol aldehyde, T31 modified
curing agent has lower volatility and toxicity and takes
the place of traditional ethylenediamine. It can solidify
epoxy resin under the conditions of room,normal or low
temp-erature, moisture,dryness and conditions of low demand
of formula dosage. With excellent physical and chemic-al
performance, it has performance of insulation, wat-er
proof,oil resistance,acid-alkali resistance, abras-ive
fastness and chemical resistance. The agent is wi-dely
used not only in the production of antisepsis co-ating
in the the fields of aerospace and war indust-ry,machine,vehicle
and ship,petroleum and chemical,metallurgy and smelting,
con-struction but also in the manufacture of glass fibre
reinforced plastics and plastic mold products. Moreover,
it is used in on-the-spot construction,the pro-duction
of sealing agent of adhesion agent material,grouting and
pouring, etc.
I. Technological Standards:
Appearance: brown,red,transparent liquid
Amine value:500±50(mgKOH/g)
Viscosity:1000-5000(mpa·S25℃)
Condition of cure:4h-24h
