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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 /F2135/ Asahi #)
Use: film grade
Feature notes: minimum thickness of 35 microns
Important parameters: melt flow rate: 3.5 g/10min density: 0.921 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene # high-pressure polyethylene) /CX7065/ Brazil Triunfo
Use: other
Feature notes: acceptable food contact
Important parameters: melt flow rate: 6.5 g/10min density: 0.918 g/cm3 tensile strength: 9.5 MPa breaking elongation: 300% VEKA softening point: 83 C
Manufacturer: Brazil Triunfo company
LDPE (low density polyethylene # high-pressure polyethylene) /LD104/ Yanshan petrochemical
Use: other
Important parameters: melt flow rate: 2 g/10min density: 0.925 g/cm3, notched impact strength: 2 tensile strength: 10 MPa, elongation at break: 400% hardness: 46 VEKA softening point: 95 degrees.
Manufacturer: Sinopec Beijing Yanhua Petrochemical Limited by Share Ltd
LDPE (low density polyethylene # high-pressure polyethylene) /LD361/ Yanshan petrochemical
Use: film grade
Important parameters: melt flow rate: 0.5 g/10min notch impact strength: 4 tensile strength: 14 MPa fracture elongation: 550% hardness: 35 VEKA softening point: 80 C
Manufacturer: Sinopec Beijing Yanhua Petrochemical Limited by Share Ltd
LDPE (low density polyethylene # high-pressure polyethylene) /811E/ West Lake
Use: other
Characteristic notes: the acceptability of food contact, general use
Important parameters: melt flow rate: 20 g/10min density: 0.916 g/cm3, tensile strength: 9 MPa, elongation at break: 300% bending modulus: 172 MPa VEKA softening point: 85 C embrittlement temperature: -45 C.
Manufacturer: West Lake Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /EP310/ West Lake
Use: film grade
Characteristic notes: excellent optical and machining properties
Important parameters: melt flow rate: 2.2 g/10min density: 0.9235 g/cm3 tensile strength: 22 MPa breaking elongation: 750%
Manufacturer: West Lake Chemical Co., Ltd.
LDPE (low density polyethylene # LDPE) /F-20 plastic Antiblock/ Schulman
Use: other
Characteristic notes: dispersible tablets, low density
Important parameters: melt flow rate: 8 g/10min density: 1.04 g/cm3
Manufacturer: Schulman plastics company
LDPE (low density polyethylene # LDPE) /White 8350 EC1/ Schulman plastics
Use: other
Important parameters: melt flow rate: 8 g/10min density: 1.52 g/cm3
Manufacturer: Schulman plastics company
LDPE (low density polyethylene # high-pressure polyethylene) /EC808AA/ West Lake
Use: other
Characteristic notes: moisture proof and heat seal
Important parameters: melt flow rate: 7 g/10min density: 0.917 g/cm3 tensile strength: 10 MPa breaking elongation: 400% flexural modulus: 207 MPa
Manufacturer: West Lake Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /LD369/ Yanshan petrochemical
Use: film grade
Important parameters: melt flow rate: 0.5 g/10min notch impact strength: 7 tensile strength: 16 MPa fracture elongation: 600% hardness: 30 VEKA softening point: 70 C
Manufacturer: Sinopec Beijing Yanhua Petrochemical Limited by Share Ltd
LDPE (low density polyethylene LDPE #) /5082/ America flintcomb ash
Use: other
Characteristic notes: excellent adhesion, excellent fluidity
Important parameters: melt flow rate: 14 g/10min density: 0.916 g/cm3 tensile strength: 9 MPa breaking elongation: 600% hardness: 42 VEKA softening point: 85 C
Manufacturer: American flint Hill resources
LDPE (low density polyethylene LDPE /F1906/ Asahi #)
Use: film grade
Feature notes: minimum thickness of 40 microns
Important parameters: melt flow rate: 0.6 g/10min density: 0.919 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /M1710/ Asahi #)
Use: other
Characteristic notes: good impact resistance at low temperature
Important parameters: melt flow rate: 0.4 g/10min density: 0.918 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene # LDPE) /470/ Carmel olefins
Use: other
Characteristic notes: better thermal sealing performance
Important parameters: melt flow rate: 5 g/10min density: 0.92 g/cm3 tensile strength: 10.5 MPa breaking elongation: 500% VEKA softening point: 92 C
Manufacturer: Israel, Carmel olefins
LDPE (low density polyethylene # LDPE) /670/ Carmel olefins
Use: other
Characteristic notes: good thermal sealing
Important parameters: melt flow rate: 8 g/10min density: 0.917 g/cm3 tensile strength: 10.5 MPa breaking elongation: 500% hardness: 45 VEKA softening point: 89 C
Manufacturer: Israel, Carmel olefins
LDPE (low density polyethylene # LDPE) /PCG00/ SABIC of Saudi Arabia
Use: film grade
Characteristic notes: low melt flow rate and excellent mechanical properties, thin film application
Important parameters:
Manufacturer: Saudi Basic Industry Company
LDPE (low density polyethylene # high-pressure polyethylene) /EF608/ West Lake
Use: other
Characteristic notes: good processing performance, good dispersion
Important parameters: melt flow rate: 9.5 g/10min density: 0.919 g/cm3 tensile strength: 15 MPa breaking elongation: 730% VEKA softening point: 88 C
Manufacturer: West Lake Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /TX8079/ Brazil Triunfo
Use: other
Characteristic notes: good processing, super high molecular weight
Important parameters: melt flow rate: 0.3 g/10min density: 0.923 g/cm3 tensile strength: 11 MPa breaking elongation: 590% VEKA softening point: 95 C
Manufacturer: Brazil Triunfo company
LDPE (low density polyethylene # high pressure polyethylene) /F312/