Shanghai Daoqin Plastics Co., Ltd.

molding shrinkage （MoldingShrinkage） is parts mold in cooling to room temperature rear, room temperature dimensions shrink small value for its cooling dimensions separation rate. due to shrinkage not only is resin hot cold shrink, but also also and formed factors has 关, therefore molding rear parts shrinkage rate is molding shrinkage. polymer/macromolecule in commonly used concept.

 

  below/following is commonly used plastics shrinkage rate

 

  PA6 series molding shrinkage

 

名称 and 描述     molding shrinkage % 备注

15% glass fiber reinforced PA6 0.5-0.8    PA6G15

20% glass fiber reinforced PA6 0.4-0.6    PA6G20

30% glass fiber reinforced PA6 0.3-0.5    PA6G30

40% glass fiber reinforced PA6 0.1-0.3    PA6G40

50% glass fiber reinforced PA6 0.1-0.3    PA6G50

25% glass fiber reinforced flame retardant PA6 0.2-0.4    Z-PA6G25

30% glass fiber reinforced flame retardant PA6 0.2-0.4    Z-PA6G30

30% glass fiber reinforced flame retardant PA6 0.2-0.4    Z-PA6G30

无卤 flame retardant PA6       0.8-1.2    Z-PA6

30% mineral filled flame retardant PA6 0.5-0.8    Z-PA6M30

30% glass beads filling PA6 0.8-1.2    PA6M30

30% glass fiber (GF) material composite/compounding filling PA6 0.3-0.5    PA6M30

40% glass fiber (GF) material composite/compounding filling PA6 0.2-0.5    PA6M40

30% mineral filled PA6 0.6-0.9    PA6M30

40% mineral filled PA6 0.4-0.7    PA6M40

PA6 generally injection molding grade    1.4-1.8    PA6

PA6 fast speed molding       1.2-1.6    PA6

PA6 generally toughened       1.0-1.5    PA6

PA6 in and other toughened       0.9-1.3    PA6

PA6 ultra- toughened    0.9-1.3    PA6

MoS2 filling wear resistant PA6     1.0-1.4    PA6

 

  PA66 series molding shrinkage

 

名称 and 描述     molding shrinkage % 备注

15% glass fiber reinforced PA66      0.6-0.9    PA66G15

20% glass fiber reinforced PA66      0.5-0.8    PA66G20

25% glass fiber reinforced heat resistant 油PA66   0.4-0.7    PA66G25

30% glass fiber reinforced PA66      0.4-0.7    PA66G30

30% glass fiber reinforced hydrolysis resistant PA66   0.3-0.6    PA66G30

40% glass fiber reinforced PA66      0.2-0.5    PA66G40

50% glass fiber reinforced PA66      0.1-0.3    PA66G50

25% glass fiber reinforced flame retardant PA66      0.2-0.4    Z-PA66G25

30% glass fiber reinforced flame retardant PA66      0.2-0.4    Z-PA66G30

30% mineral filled flame retardant PA66      0.2-0.4    PA66M30

无卤 flame retardant PA66      0.8-1.2    Z-PA66

30% mineral filled flame retardant PA66      0.4-0.7    Z-PA66M30

30% glass beads filling PA66      0.8-1.2    PA66M30

30% glass fiber (GF) material composite/compounding filling PA66      0.2-0.5    PA66M30

30% mineral filled PA66      0.6-0.9    PA66M30

40% mineral filled PA66      0.4-0.7    PA66M40

generally injection molding grade PA66  1.5-1.8    PA66

fast speed molding PA66      1.5-1.8    PA66

generally toughened PA66      1.2-1.7    PA66

in and other toughened PA66      1.2-1.6    PA66

ultra- toughened PA66  1.2-1.6    PA66

MoS2 filling wear resistant PA66   1.2-1.6    PA66

 

  PP series molding shrinkage

 

名称 and 描述     molding shrinkage % 备注

20% slip powder filling PP      1.0-1.5    PPM20

30% slip powder filling PP      0.8-1.2    PPM30

40% slip powder filling PP      0.8-1.0    PPM40

20% slip powder filling toughened PP      1.0-1.2    PPM20

20% carbon acid filling PP      1.2-1.6    PPM20

10% glass fiber reinforced PP   0.7-1.0    PPG10

20% glass fiber reinforced PP   0.5-0.8    PPG20

30% glass fiber reinforced PP   0.4-0.7    PPG30

20% glass beads filling PP   1.2-1.6    PPM20

30% glass beads filling PP   1.0-1.2    PPM20

bromine flame retardant grade PP      1.5-1.8    PP

无卤 flame retardant grade PP      1.3-1.6    PP

high flow high property PP  1.5-2.0    PP

generally toughened PP  1.5-2.0    PP

in and other toughened PP  1.4-1.9    PP

ultra- toughened PP      1.3-1.8    PP

heat resistant aging PP1 1.5-2.0    PP1

heat resistant aging PP2 1.5-2.0    PP2

heat resistant aging PP3 1.5-2.0    PP3

impact resistant resistant 侯PP4    1.5-2.0    PP4

high impact resistance resistant 侯PP5    1.5-1.8    PP5

20% slip powder filling PP6     1.0-1.2    PP6

30% slip powder filling PP7     0.9-1.1    PP7

40% slip powder filling PP8     0.8-1.0    PP8

 

  PC series molding shrinkage

 

名称 and 描述     molding shrinkage % 备注

10% glass fiber reinforced PC   0.3-0.5    PCG10

20% glass fiber reinforced PC   0.3-0.5    PCG20

25% glass fiber reinforced PC   0.2-0.4    PCG25

30% glass fiber reinforced PC   0.2-0.4    PCG30

20% glass fiber reinforced flame retardant PC   0.2-0.4    Z-PCG20

25% glass fiber reinforced flame retardant PC   0.2-0.4    Z-PCG25

30% glass fiber reinforced flame retardant PC   0.2-0.4    Z-PCG30

20% glass fiber reinforced flame retardant PC   0.2-0.4    Z-PCG20

30% glass fiber reinforced flame retardant PC   0.1-0.3    Z-PCG30

20% glass beads filling PC   0.3-0.6    PCM20

 

  PC/ABS series molding shrinkage

 

名称 and 描述     molding shrinkage % 备注

20% glass fiber reinforced PC/ABS  0.2-0.4    PC/ABSG20

bromine flame retardant PC/ABS 0.3-0.6    Z-PC/ABS

无卤 flame retardant PC/ABS 0.4-0.7    Z-PC/ABS

resistant grade PC/ABS     0.4-0.7    PC/ABS

35%PC   0.4-0.6    PC/ABS

65%PC   0.4-0.7    PC/ABS

85%PC   0.4-0.7    PC/ABS

 

PC/PBT series molding shrinkage

 

名称 and 描述     molding shrinkage % 备注

10% glass fiber reinforced PC/PBT  0.5-0.8    PC/PBTG10

20% glass fiber reinforced PC/PBT  0.4-0.6    PC/PBTG20

30% glass fiber reinforced PC/PBT  0.3-0.5    PC/PBTG30

30% glass fiber reinforced flame retardant high heat resistant PC/PBT      0.3-0.5    Z-PC/PBTG30

high impact high heat resistant PC/PBT  0.6-1.0    PC/PBT

 

  ABS series molding shrinkage effect/influence plastics products shrinkage rate factors

 

名称 and 描述     molding shrinkage % 备注

20% glass fiber reinforced ABS       0.2-0.4    ABSG20

25% glass fiber reinforced ABS       0.2-0.4    ABSG25

30% glass fiber reinforced ABS       0.1-0.3    ABSG30

20% glass fiber reinforced flame retardant ABS       0.1-0.3    Z-ABSG20

generally flame retardant grade ABS   0.4-0.7    Z-ABS

generally injection molding grade ABS   0.4-0.7    ABS

resistant grade ABS   0.4-0.7    ABS