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bookmark | plastics shrinkage rate Complete Guide
Date: 2023-09-05 20:42
Views: 3219
Source: Internet
shrinkage rate plastics products cooling solid demolding formed rear, its dimensions and mold dimensions 间之误差 percentage, can 依ASTM D955 methods 测. in plastics mold design 时, must 先考虑 shrinkage rate, 以免造 formed formed product dimensions 误差, formed product defect.
| plastics molding processing temperature degree, mold temperature degree and injection shot molding process generally plastics shrinkage rate | |||||||||
| in 文名称 | 英文 | density | glass fiber content | 线 property thermal expansion coefficient | 平均 ratio hot | hot rate | processing temperature degree | mold temperature degree | shrinkage rate |
| [g/cm3] | [%] | 10-5/k-1 | [KJ/(kg x K)] | W.m-1.k-1 | [℃] | [℃] | [%] | ||
| polystyrene (PS) | PS | 1.05 | 6~8 | 1.2~1.3 | 0.16 | 180-280 | 10 | 0.3-0.6 | |
| polystyrene (PS), in. high impact property | HI-PS | 1.05 | 1.21 | 170-260 | 5-75 | 0.5-0.6 | |||
| polystyrene (PS) - propylene 晴 | SAN | 1.08 | 1.3 | 180-270 | 50-80 | 0.5-0.7 | |||
| propylene 晴- butadiene - styrene | ABS | 1.06 | 1.4 | 210-275 | 50-90 | 0.4-0.7 | |||
| 苯烯晴- styrene - acrylic | ASA | 1.07 | 1.3 | 230-260 | 40-90 | 0.4-0.6 | |||
| low density polyethylene (PE) | LDPE | 0.954 | 13~20 | 1.9~2.1 | 0.35 | 160-260 | 50-70 | 1.5-5.0 | |
| high density polyethylene (PE) | HDPE | 0.92 | 11~13 | 2.3-2.5 | 0.44 | 260-300 | 30-70 | 1.5-3.0 | |
| polypropylene (PP) | PP | 0.915 | 6~10 | 0.84-2.5 | 0.24 | 250-270 | 50-75 | 1.0-2.5 | |
| polypropylene (PP) -GR | PPGR | 1.15 | 30 | 1.1-1.35 | 260-280 | 50-80 | 0.5-1.2 | ||
| poly 异丁烯 | IB | 150-200 | |||||||
| polymethylpentene (TPX) | PMP | 0.83 | 280-310 | 70 | 1.5-3.0 | ||||
| soft polyvinyl chloride (PVC) | PVC-soft | 1.38 | 7~25 | 0.85 | 0.15 | 170-200 | 15-50 | >0.5 | |
| hard polyvinyl chloride (PVC) | PVC-rigid | 1.38 | 5~18.5 | 0.83-1.05 | 0.16 | 180-210 | 30-50 | 0.5 | |
| poly fluorine ethylene | PVDF | 1.2 | 250-270 | 90-100 | 3.0-6.0 | ||||
| PTFE | PTFE | 2.12-2.17 | 10 | 1.02~1.08 | 0.27 | 320-360 | 200-230 | 3.5-6.0 | |
| fluorine ethylene propylene copolymer | FEP | 2.15 | 3.0-4.0 | ||||||
| poly methacrylic acid 甲脂（ propylene ） | PMMA | 1.18 | 4.5 | 1.39~1.46 | 0.19 | 210-240 | 50-70 | 0.1-0.8 | |
| polyoxymethylene (POM) | POM | 1.42 | 10 | 1.47-1.5 | 0.23 | 200-210 | >90 | 1.9-2.3 | |
| poly oxygen or poly oxidation 亚苯 | PPO | 1.06 | 1.45 | 250-300 | 80-100 | 0.5-0.7 | |||
| poly oxygen -GR | PPO-GR | 1.27 | 30 | 1.3 | 280-300 | 80-100 | <0.7 | ||
| 醋 acid fiber 素 | CA | 1.27-1.3 | 1.3-1.7 | 180-320 | 50-80 | 0.5 | |||
| 醋 acid -丁 acid fiber 素 | CAB | 1.17-1.22 | 1.3-1.7 | 180-230 | 50-80 | 0.5 | |||
| 丙 acid fiber table/sheet 素 | CP | 1.19-1.23 | 1.7 | 180-230 | 50-80 | 0.5 | |||
| poly carbon acid 醋 | PC | 1.2 | 1.3 | 280-320 | 80-100 | 0.8 | |||
| poly carbon acid 脂-GR | PC-GR | 1.42 | 10-32 | 1.1 | 300-330 | 100-120 | 0.15-0.55 | ||
| polyurethane acid ester | TPU | 10~20 | 1.76 | 0.3 | |||||
| polyethylene (PE) for 苯二甲 acid ester | PET | 1.01 | 0.14 | ||||||
| polyethylene (PE) for 苯二甲 acid ester -GR | PET-GR | 1.5-1.57 | 20-30 | 260-290 | 140 | 1.2-2.0 | |||
| poly for acid | PBT | 1.3 | 240-260 | 60-80 | 1.5-2.5 | ||||
| poly for acid -GR | PBT-GR | 1.52-1.57 | 30-50 | 250-270 | 60-80 | 0.3-1.2 | |||
| nylon 6 （ poly acid amine 6） | PA 6 | 1.14 | 6 | 1.6~1.8 | 0.31 | 240-260 | 70-120 | 0.5-2.2 | |
| nylon 6 -GR | PA 6-GR | 1.36-1.65 | 30-50 | 1.26-1.7 | 270-290 | 70-120 | 0.3-1 | ||
| nylon 6 /6 | PA 66 | 1.15 | 9 | 1.7 | 0.25 | 260-290 | 70-120 | 0.5-2.5 | |
| nylon 6 /6-GR | PA66-GR | 1.20-1.65 | 30-50 | 1.4 | 280-310 | 70-120 | 0.5-1.5 | ||
| nylon 11 | PA 11 | 1.03-1.05 | 2.4 | 210-250 | 40-80 | 0.5-1.5 | |||
| nylon 12 | PA 12 | 1.01-1.04 | 1.2 | 210-250 | 40-80 | 0.5-1.5 | |||
| polyether 砜 | PES | 5.5 | 1.12 | 0.18 | |||||
| polyether 矾 | PSO | 1.37 | 310-390 | 100-160 | 0.7 | ||||
| poly 硫化亚苯 | PPS | 1.64 | 40 | 370 | >150 | 0.2 | |||
| thermoplastic property poly amine 脂 | PUR | 1.2 | 1.85 | 195-230 | 20-40 | 0.9 | |||
| 酚甲 aldehyde resin GP | PF | 1.4 | 1.3 | 60-80 | 170-190 | 1.2 | |||
| 三 poly amine aldehyde GP | MF | 1.5 | 1.3 | 70-80 | 150-165 | 1.2-2 | |||
| 三 poly amine aldehyde | MPF | 1.6 | 1.1 | 60-80 | 160-180 | 0.8-1.8 | |||
| poly resin | UP | 2.0-2.1 | 0.9 | 40-60 | 150-170 | 0.5-0.8 | |||
| ring oxygen resin | EP | 1.9 | 30-80 | 8 | 1.05-1.9 | 0.17 | ca.70 | 160-170 | 0.2 |
| oxygen 丁橡胶 | 24 | 1.7 | 0.21 | ||||||
| 天然橡胶 | 1.92 | 0.18 | |||||||
| poly 乙丁烯 | 1.95 | ||||||||
modified engineering plastics molding shrinkage （ASTM D955）
| 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 |
| PA/ABS series molding shrinkage | ||
| 名称 and 描述 | molding shrinkage % | 备注 |
| 10% glass fiber reinforced PA/ABS | 0.3-0.6 | PA/ABSG10 |
| 20% glass fiber reinforced PA/ABS | 0.2-0.5 | PA/ABSG20 |
| 30% glass fiber reinforced PA/ABS | 0.1-0.3 | PA/ABSG30 |
| 20% glass fiber reinforced flame retardant PA/ABS | 0.2-0.5 | Z-PA/ABSG20 |
| resistant impact PA/ABS | 0.5-0.8 | PA/ABS |
| high impact PA/ABS | 0.8-1.0 | PA/ABS |
| 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 |
| 40% glass fiber reinforced PP | 0.3-0.5 | PPG40 |
| 20% glass beads filling PP | 1.2-1.6 | PPM20 |
| 30% glass beads filling PP | 1.0-1.2 | PPM20 |
| 15% glass fiber reinforced flame retardant PP | 0.5-0.7 | Z-PPG15 |
| 20% glass fiber reinforced flame retardant PP | 0.3-0.5 | Z-PPG20 |
| 30% glass fiber reinforced flame retardant PP | 0.2-0.4 | Z-PPG30 |
| 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 |
| 20% glass fiber reinforced PP9 | 0.5-0.8 | PP9 |
| 30% glass fiber reinforced high heat resistant PP | 0.4-0.7 | PP10 |
| 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 |
| PBT/ABS series molding shrinkage | ||
| 名称 and 描述 | molding shrinkage % | 备注 |
| 20% glass fiber reinforced PBT/ABS | 0.3-0.5 | PBT/ABSG20 |
| 30% glass fiber reinforced PBT/ABS | 0.2-0.4 | PBT/ABSG30 |
| 20% glass fiber reinforced flame retardant PBT/ABS | 0.2-0.4 | Z-PBT/ABSG20 |
| 30% glass fiber reinforced flame retardant PBT/ABS | 0.2-0.4 | Z-PBT/ABSG30 |
| general purpose injection molding grade PBT/ABS | 0.8-1.2 | PBT/ABS |
| general purpose flame retardant grade PBT/ABS | 0.7-1.1 | PBT/ABS |
| PBT series molding shrinkage | ||
| 名称 and 描述 | molding shrinkage % | 备注 |
| 10% glass fiber reinforced PBT | 0.8-1.2 | PBTG10 |
| 15% glass fiber reinforced PBT | 0.7-1.0 | PBTG15 |
| 20% glass fiber reinforced PBT | 0.4-0.7 | PBTG20 |
| 25% glass fiber reinforced PBT | 0.3-0.6 | PBTG25 |
| 30% glass fiber reinforced PBT | 0.3-0.5 | PBTG30 |
| 50% glass fiber reinforced PBT | 0.1-0.3 | PBTG50 |
| 30% glass fiber reinforced impact modified PBT | 0.3-0.5 | PBTG30 |
| 10% glass fiber reinforced flame retardant PBT | 0.7-0.9 | Z-PBTG10 |
| 20% glass fiber reinforced flame retardant PBT | 0.4-0.6 | Z-PBTG20 |
| 30% glass fiber reinforced flame retardant PBT | 0.3-0.5 | Z-PBTG30 |
| generally toughened PBT | 1.4-1.8 | PBT |
| in and other toughened PBT | 1.2-1.6 | PBT |
| ultra- toughened PBT | 1.0-1.5 | PBT |
| PTFE generally wear resistant modified PBT | 1.5-2.0 | PBT |
| flame retardant grade PBT | 1.2-1.7 | Z-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 |
（ 源公众号: injection molding plastics Knowledge ）
