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亞克力的加工工藝

亞克力可以采用澆鑄、注塑、擠出、熱成型、激光雕刻、激光切割等工藝。
澆鑄成型
澆鑄成型用于成型有機玻璃板材、棒材等型材，即用體本體聚合方法成型型材。澆鑄成型后的制品需要進行后處理，后處理條件是60℃下保溫2小時，120℃下保溫2小時。
注塑成型
注塑成型采用懸浮聚合所制得的顆粒料，成型在普通的柱塞式或螺桿式注塑機上進行。工藝參數(shù)包括螺桿式注塑機、柱塞式注塑機、料筒溫度后部180℃～200℃;中部 190℃～230℃;前部 180℃～210℃;噴嘴溫度180℃～210℃或210℃～240℃;模具溫度℃ 40℃～80℃;注射壓力80MPa～120MPa 或80MPa～130MPa;保壓壓力MPa 40MPa～60MPa;螺桿轉(zhuǎn)速-1.20rp.m～30rp.m;注塑制品也需要后處理消除內(nèi)應(yīng)力，處理在70～80℃熱風(fēng)循環(huán)干燥箱內(nèi)進行，處理亞克力棒時間視制品厚度，一般均需4小時左右。
熱成型
熱成型是將有機玻璃板材或片材制成各種尺寸形狀制品的過程，將裁切成要求尺寸的坯料夾緊在模具框架上，加熱使其軟化，再加壓使其貼緊模具型面，得到與型面相同的形狀，經(jīng)冷卻定型后修整邊緣即得制品。加壓可采用抽真空牽伸或用對帶有型面的凸模直接加壓的方法。采用快速真空低牽伸成型制品時，宜采用接近下限溫度，成型形狀復(fù)雜的深度牽伸制品時宜采用接近上限溫度，一般情況下采用正常溫度。

部分型號部分物性表

LDPE (low density polyethylene LDPE /MB-6005/ Australia Marplex #)
Use: other
Characteristic notes: smoothness, anti caking
Important parameters: density: 0.92 g/cm3
Manufacturer: Marplex, Australia
LDPE (low density polyethylene LDPE /L402/ Japan Sumitomo #)
Use: other
Characteristic notes: characteristics: shrinkage, thermal stability
Important parameters: melt flow rate: 3.5 g/10min density: 0.92 g/cm3
Manufacturer: Sumitomo Chemical Industry Co., Ltd., Japan
LDPE (low density polyethylene LDPE #) /BF115/ Hyundai
Use: film grade
Important parameters: melt flow rate: 0.25 g/10min density: 0.92 g/cm3, notched impact strength: 200 tensile strength: 17 MPa, elongation at break: 600% hardness: 52 VEKA softening point: 94 degrees.
Manufacturer: Korea modern petroleum chemical company
LDPE (low density polyethylene LDPE #) /BF310/ Hyundai
Use: film grade
Feature remark: Type: Film
Important parameters: melt flow rate: 0.75 g/10min density: 0.924 g/cm3 notch impact strength: 190 tensile strength: 19 MPa breaking elongation: 600%
Manufacturer: Korea modern petroleum chemical company
LDPE (low density polyethylene LDPE #) /BF410/ Hyundai
Use: film grade
Feature remark: Type: Film
Important parameters: melt flow rate: 2 g/10min density: 0.924 g/cm3, notched impact strength: 65 tensile strength: 13 MPa, elongation at break: 650% hardness: 52 VEKA softening point: 95 degrees.
Manufacturer: Korea modern petroleum chemical company
LDPE (low density polyethylene LDPE #) /BF500/ Hyundai
Use: film grade
Feature remark: Type: Film
Important parameters: melt flow rate: 3 g/10min density: 0.92 g/cm3, notched impact strength: 60 tensile strength: 12 MPa, elongation at break: 550% hardness: 49 VEKA softening point: 90 degrees.
Manufacturer: Korea modern petroleum chemical company
LDPE (low density polyethylene LDPE #) /BF511/ Hyundai
Use: film grade
Feature remark: Type: Film
Important parameters: melt flow rate: 4 g/10min density: 0.924 g/cm3, notched impact strength: 50 tensile strength: 11 MPa, elongation at break: 350% hardness: 51 VEKA softening point: 93 degrees.
Manufacturer: Korea modern petroleum chemical company
LDPE (low density polyethylene LDPE #) /BF515/ Hyundai
Use: film grade
Feature remark: Type: Film
Important parameters: melt flow rate: 4 g/10min density: 0.924 g/cm3, notched impact strength: 50 tensile strength: 11 MPa, elongation at break: 550% hardness: 51 VEKA softening point: 93 degrees.
Manufacturer: Korea modern petroleum chemical company
LDPE (low density polyethylene # LDPE) /303/ Korea China
Use: other
Characteristic notes: features: extrusion foaming processing, softness, impact absorbability
Important parameters: melt flow rate: 6 g/10min density: 0.919 g/cm3, tensile strength: 9 MPa, elongation at break: 450% hardness: 46 VEKA softening point: 88 C embrittlement temperature: -76 C.
Manufacturer: Korea Hwa comprehensive chemical company
LDPE (low density polyethylene # LDPE) /5314/ Korea China
Use: film grade
Characteristics: features: machinability, excellent mechanical properties
Important parameters: melt flow rate: 1.3 g/10min density: 0.923 g/cm3, notched impact strength: 120 tensile strength: 13 MPa, elongation at break: 650% VEKA softening point: 90 degrees.
Manufacturer: Korea Hwa comprehensive chemical company
LDPE (low density polyethylene # LDPE) /5317/ Korea China
Use: film grade
Characteristic notes: characteristics: machinability, excellent mechanical properties
Important parameters: melt flow rate: 2.3 g/10min density: 0.923 g/cm3, notched impact strength: 80 tensile strength: 12 MPa, elongation at break: 700% VEKA softening point: 89 degrees.
Manufacturer: Korea Hwa comprehensive chemical company
LDPE (low density polyethylene # LDPE) /5321/ Korea China
Use: film grade
Characteristic notes: features: excellent machinability and mechanical properties
Important parameters: melt flow rate: 3 g/10min density: 0.921 g/cm3, notched impact strength: 75 tensile strength: 11 MPa, elongation at break: 700% VEKA softening point: 88 degrees.
Manufacturer: Korea Hwa comprehensive chemical company
LDPE (low density polyethylene LDPE /700A HS/ America #) RTP
Use: other
Characteristic note: heat stabilizer, low density, thermal stability
Important parameters: density: 0.918 g/cm3 tensile strength: 10 MPa flexural modulus: 210 MPa
Manufacturer: RTP company, USA
LDPE (low density polyethylene LDPE # Dow /1321/ Singapore)
Use: other
Characteristic notes: characteristics: blowing film
Important parameters: melt flow rate: 0.2 g/10min density: 0.921 g/cm3
Manufacturer: Dow Chemical Pacific (Singapore) private limited company
LDPE (low density polyethylene LDPE # Dow /6821/ Singapore)
Use: other
Characteristic notes: characteristics: blowing film
Important parameters: melt flow rate: 0.7 g/10min density: 0.922 g/cm3
Manufacturer: Dow Chemical Pacific (Singapore) private limited company
LDPE (low density polyethylene LDPE # /C180BK/ Ube)
Use: other
Important parameters: melt flow rate: 0.2 g/10min density: 0.938 g/cm3
Manufacturer: Japan Ube
LDPE (low density polyethylene LDPE # /C600VD/ Ube)
Use: other
Important parameters: melt flow rate: 0.2 g/10min density: 0.93 g/cm3
Manufacturer: Japan Ube
LDPE (low density polyethylene # LDPE) /1938Z900/ SABIC of Saudi Arabia
Use: other
Feature remark: product trademark: SABIC
Important parameters: melt flow rate: 38 g/10min density: 0.919 g/cm3 VEKA softening point