ABS modified formula

First, flame retardant modification
1, ABS flame retardant modification

Formula composition

Parts by mass

Resin ABS

100

Stabilizer CaSt

0.8

Flame retardant perchlorocyclopentane

40

BaSt

0.5

Sb203

20

Lubricant HSt

0.4

Process conditions:
Stirring time 5 ~ 10min, extrusion temperature 200 ~ 240 ° C, extruder screw L / D ≥ 25: 1; screw speed 60 ~ 80 r / min.
Material properties:

Oxygen Index

≥27%

Combustion performance is self-extinguishing

UL-94 V-0

Tensile Strength

28.8~30.1MPa

Bending strength

34～37MPa

Elongation

2% to 3%

Notched impact strength

11~13 kJ/m2

Heat distortion temperature

78～85°C


2, transparent ABS flame retardant modification

Formula composition

Parts by mass

Resin transparent ABS

90

Flame retardant tetrabromobisphenol A

18

MBS

10

Antimony pentoxide

8

Stabilizer Jingxi-8831

0.3


Process conditions:
Mix and stir for 5 min in a high speed mixer
Material properties:

Oxygen Index

≥25%

UL-94

V-2

Tensile Strength

42～45MPa

Bending strength

50～55MPa

Elongation

2.5% to 3.5%

Notched impact strength

25~28kJ/m2

Heat distortion temperature (1.82MPa)

72～78°C


3, high strength and high toughness flame retardant ABS

Formula composition

Parts by mass

ABS resin

62.6

Flame retardant 1

21.3

PETG Plastic (26002)

11

Lubricant (EBS)

0.8

Toughener ABS high rubber powder (HR181)

4

Antioxidant 1010

0.3


Process conditions:
Mixing in a medium speed mixer for 3 to 7 minutes, the temperature of the extruder barrel is 160 °C in one zone, 180 °C in the second zone, 200 °C in the third zone, 210 °C in the four zones, 220 °C in the five zones, and the conveying time of the mixture in the screw. 1 to 2 minutes.
Material properties:

Tensile Strength

44MPa

Flexural modulus

2.28GPa

Simply supported beam notched impact strength

230kJ/m2

Heat distortion temperature (1.80MPa)

74 ° C


Second, ABS enhanced modification
1. Glass fiber reinforced modified ABS

Formula composition

Parts by mass

Resin ABS

100

Toughener PB

8

Reinforcing agent glass fiber

30

Lubricant HSt

0.5

Coupling agent KH-550

0.8


Process conditions:
High-speed stirring for 10 to 15 minutes, L/D ≥ 28 of the extruder; extruder barrel temperature of 190 to 220 ° C; screw rotation speed of 120 to 160 r / min.
Material properties:

Tensile Strength

85～l00MPa

Bending strength

108～132MPa

Elongation

1.5 to 18%

Notched impact strength

64～69.3J/m

Heat distortion temperature (1.84MPa)

101.6~110°C

Rockwell hardness

75- 85M

2, glass fiber and calcium carbonate hybrid enhanced modified ABS

Formula composition

Parts by mass

Resin ABS

65

Filler calcium carbonate (10~14um in diameter)

20

Reinforcing agent short glass fiber (10~14um in diameter)

15

Other additives

Moderate amount


Process conditions:
Extrusion barrel temperature: 200 ° C in one zone, 220 ° C in the second zone, 225 ° C in the third zone, 230 ° C in the four zones.
Material properties:

Tensile Strength

56.2MPa

Tensile modulus

10.2GPa

In the ABS engineering plastics with short glass fiber reinforced modification, the addition of calcium carbonate particles can further improve the stiffness (modulus) without affecting the strength. When engineering requires higher strength, stiffness and cheaper engineering plastics, glass fiber and calcium carbonate hybrid reinforced modified ABS engineering plastics can be used.



3. Glass fiber reinforced modified ABS/PET composite material

Formula composition

Parts by mass

Resin ABS

100

Compatibilizer SMA

8

PET

43

Lubricant EBS

0.5

Reinforcer glass fiber (10um diameter)

45

Antioxidant 1010

0.5

Mineral filler glass beads

20

Antioxidant 168

1.0


Process parameters:
The speed of the mixer is controlled to be 500-700 r/min, the mixing temperature is about 60 ° C, the mixing time is 5-8 min, and the extrusion temperature is 195-260 ° C.
Material properties:

Tensile Strength

108.6MPa

Bending strength

143.3MPa

Flexural modulus

8.84GPa

Simple unnotched impact strength

41kJ/m2

Simply supported beam notched impact strength

8.6kJ/m2

Heat distortion temperature

92°C


Third, ABS filling modification
1. Calcium carbonate filled modified ABS

Formula composition

Parts by mass

Resin ABS

100

Toughener SEBS

5.0

Filler CaCO3

50

Lubricant ZnS

0.5

Coupling agent TIS

0.8

HSt

0.5

Dispersant PE wax

0.8


Process parameters:
The mixture was heated and stirred for 5 minutes, and the extrusion temperature was 190 to 210 ° C, and the screw rotation speed was 60 to 100 r/min.
Material properties:

Tensile Strength

≥50MPa

Bending strength

≥70MPa

Notched impact strength (23 ° C)

≥7kJ/m2

Heat distortion temperature

≥80°C


Process parameters:
The heating temperature is 90-110 ° C, the stirring time is 5-10 min, the extruder L/D ≥ 25, the temperature of each section of the barrel is 170 ° C in one zone, 185 ° C in the second zone, 195 ° C in the third zone, 205 ° C in the fourth zone. The five zones are 210 ° C; the head temperature is 200 ° C; the screw speed is 60 ~ 120 r / min.
Material properties:

Tensile Strength

32～42MPa

Bending strength

48～52MPa

Notched impact strength (23 ° C)

5 to 7 kJ/m2

Heat distortion temperature

72～78°C



Annealed Steel Bar is produced by annealing which is one kind of heat treatment to get proper hardness for machining. Our advantages and more services of annealed steel bar includes:

1) Wide range of diameters from 10mm to 300mm

2) Customized Length from 100mm to 12000mm

3) Good surface roughness: 0.4um to 1.5um

4) Good straightness: 0.5mm/m to 2mm/m

5) Good roundness: 80% of diameter tolerance

6) Diameter tolerance: -0.02mm to -0.06mm/h9, h10, h11

7) Matched further processing: Grinding, polishing, straightening

8) Anti-rusty package

9) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing

10) Fast delivery time

Annealed Steel Bar

Annealed Bar,Scm420 Equivalent,4140 Annealed Hardness,Annealed Steel Properties

SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.lerenspecialsteel.com