描述

Pmma注射材料颗粒

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注射材料颗粒

产品细节

pmma注射材料颗粒

PMM的工艺处理

（1）塑料处理

由于透明PMM塑料中存在任何杂质，可能会影响产品的透明度，因此与储存和运输有关

在进料和进料过程中，必须注意密封，确保原料清洁。尤其是原材料中含有水，这会导致原材料在加热后发生变化

因此，它必须干燥，注射成型时，必须使用干燥料斗进料。需要注意的一点是，在干燥过程中，最好对输入空气进行过滤、除湿和除尘，以确保其不会污染原材料

PMM具有一定程度的吸水性，吸水率为0.3-0.4%，注塑成型时的湿度必须低于0.1%，通常为

0.04%。水分的存在会导致熔体中出现气泡、气泡线和透明度降低。所以要进行干燥处理。干燥温度80-90℃，时间3小时以上

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Pmma Injection Material Pellets

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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 Injection Material Pellets

Product Details

pmma injection material pellets

Process treatment of PMM

(1) Plastic treatment

Since there is any impurity in the transparent PMM plastic, it may affect the transparency of the product, so it is related to storage and transportation.

In the process of feeding and feeding, you must pay attention to sealing to ensure that the raw materials are clean. Especially the raw materials contain water, which will cause the raw materials to change after heating.

Therefore, it must be dried, and when injection molding, a drying hopper must be used for feeding. One thing to note is that during the drying process, the output

The incoming air should preferably be filtered, dehumidified, and dust removed to ensure that it does not pollute the raw materials.

PMM has a certain degree of water absorption, with a water absorption rate of 0.3-0.4%, and the injection molding must be at a humidity below 0.1%, usually

0.04%. The presence of moisture causes bubbles, gas lines, and reduced transparency in the melt. So to

Carry out drying treatment. The drying temperature is 80-90℃, and the time is more than 3 hours.

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