描述

PMMA板铸造级/PMMA废颗粒/塑料回收PMMA

PMMA塑料材料

优良的透明度和优异的耐老化性

PMMA具有重量轻、成本低、易于成型的优点

PMMA板铸造级/PMMA废颗粒/塑料回收PMMA

产品细节

PMMA板铸造级/PMMA废颗粒/塑料回收PMMA

PMMA加工条件

PMMA适合通过注射成型、挤出、挤出吹塑（仅限冲击改性丙烯酸树脂）、热成型和铸造进行加工
如果使用通风筒，则无需预干燥，但如果使用普通筒，则必须干燥处理PMMA，建议在70-100°C下预干燥颗粒8小时。如果处理潮湿颗粒，则会形成表面缺陷和气泡

注射成型

熔体温度：200-250°C

模具温度：40-80°C

由于流动性差，需要较高的注射压力，可能需要缓慢注射以获得正确的流动

。可以通过在80°C下加热来消除内应力

挤出

挤出温度：180-250°C

建议使用20-30的长径比

PMMA可通过所有塑料焊接工艺进行焊接，如热刀焊接、热气焊接、超声波焊接或旋转焊接

由于其透明度和刚度，PMMA也被用作3D打印材料，但与PLA相比，它需要稍高的温度，更容易包裹。PMMA长丝有多种颜色可供选择

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PMMA Board Cast Grade/ Pmma Waste Pellets / Plastic Recycle PMMA

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PMMA Plastic Material
Excellent transparency and outstanding aging resistance
PMMA has the advantages of light weight, low cost and easy molding.

PMMA Board Cast Grade/ Pmma Waste Pellets / Plastic Recycle PMMA

Product Details

PMMA Board Cast Grade/ pmma waste pellets / plastic recycle PMMA

PMMA Processing Conditions

PMMA is suitable for processing by injection molding, extrusion, extrusion blow molding (impact modified acrylics only), thermoforming and casting.
Pre-drying is not necessary if a vented cylinder is used but if a normal cylinder is used then PMMA must be processed dry and it is advisable to pre-dry the granules for up to 8 hours at 70-100°C. Surface defects and blisters will form if damp granules are processed.

Injection Molding

·Melt temperature : 200-250°C

·Mold temperature : 40-80°C

·High injection pressures are needed because of poor flow properties and it may be necessary to inject slowly to get the correct flow

·Internal stresses can be eliminated by heating at 80°C

Extrusion

·Extrusion temperature : 180-250°C

·A degassing screw with an L/D ratio of 20-30 is recommended

PMMA can be welded by all the plastics welding processes such as hot‐blade, hot‐gas, ultrasonic or spin welding.

Due to its transparency and stiffness, PMMA is also used as 3D Printing materialbut it requires slightly high temperature and a bit more prone to wrap as compared to PLA. PMMA filaments are available in wide array of colors.

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