PC and ABS Material Gloss Control and Detection
PC / ABS material is an engineering plastic with high gloss, high heat resistance. It is widely used in the fields of automobiles, electrical appliances and medical treatment. However, due to its high gloss, in the process of use, manufacturers need to spray, cover, or abrasive sanding and matte treatment.
1. How to control the gloss of PC / ABS material?
(1) Adjustment of compatible agent
PC and ABD have certain compatibility and are not completely compatible, so when producing PC / ABS, it is necessary to add a compatibilizer. Different compatibilizers have different effects on gloss.
(2) Adjustment of lubricant type
Although the amount of lubricant in the PC / ABS alloy system is small, it will also affect its gloss.
(3) Add matting agent
Special matting agent can greatly reduce the gloss of PC / ABS material
(4) Change the injection molding process
The injection molding process conditions (mold temperature) have a certain effect on the gloss of the PC / ABS alloy material. The product with a lower mold temperature has a lower gloss. The product with a higher mold temperature has a higher gloss.
2. How to test the gloss of PC / ABS material?
Gloss is a physical quantity that describes the ability of an object to reflect light. People can easily see the gloss differences by observing the surface gloss with the naked eye. In order to ensure that the gloss of PC / ABS material is within a controllable range, it is necessary to use a gloss detector to measure PC / ABS material. Gloss.
The measuring probe of the gloss detector is composed of a light source transmitter and a receiver. The light source emits a beam of light through the lens L1 to reach the surface of the PC / ABS material under test. The surface of the PC / ABS material under test reflects the light to the lens L2. The lens L2 reflects the beam converge to the photocell located at the light bar B. After the photocell is photoelectrically converted, the electrical signal is sent to the processing circuit for processing and then the instrument displays the gloss data. The PC / ABS material sample surface gloss can be measured by the gloss detector. Through continuous matte treatment, the gloss of the PC / ABS material can be reached within a reasonable range.
As for the choice of gloss detector, Linshang LS192 portable gloss detector is more recommended here. This gloss detector can be used for the gloss measurement of paint, coating, ink, paper, ceramic tiles, stone, metal and electroplated layers. It is a 60-degree angular gloss detector with a gloss measurement range up to 1000GU. The test data is comparable to the German BYK gloss detector. It can measure the glossiness of the measured material in real time without any pressing the button. You can record and store the current data by short pressing the power button during measurement.