New developped PVC extrusion profile for power socket rail
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Due to the four factors of PVC plastic different profile brightness degree of dim
by：CSSSLD
2021-02-03
PVC plastic different profile in nowadays has been widely used in the construction industry, it is a multipurpose industrial pipe material, in the process of PVC plastic special-shaped material production, often meet with plastic material surface brightness shortage phenomenon, this is how to return a responsibility?
What factors affect the surface of PVC plastic different profile brightness?
Changshu well below da plastic products factory to introduce the four major influence factors of PVC plastic different profile surface brightness!
1, the dosage of active calcium carbonate surface brightness of plastic material of
packed in plastic different profile production is necessary, it can reduce cost, but also can improve some performance of the plastic material, such as section size after heating rate reduce and improve the rigidity, etc. Active calcium carbonate is relatively commonly used in the production of plastic material of a kind of packing, how much the amount of it affect the surface brightness of plastic material.
when the dosage of active calcium carbonate is 15 kg, the test of the plastic material performance, surface brightness is good. When the dosage increased to 20 kg, while the profile test of the performance, but the surface brightness decreases obviously, this is because the active calcium carbonate oil absorption value is higher, after joining the amount too much, active calcium carbonate to absorb the lubricant in plastic material formula, which reduces the surface brightness of plastic material.
2, the dosage of the PE wax on the surface brightness of plastic material of
PE wax is a relatively common external lubricant. During processing, under the pressure, it is easy to squeeze from the mixed materials, move the analysis to the surface, PE molecular orientation arrangement, polar groups to the metal surface, by physical adsorption and chemical bonds to form a lubricant molecular layer, therefore, it can reduce the friction on the surface of the polymer and equipment, to improve the surface brightness plastic material.
when the dosage of PE wax is 0. 2, the material performance testing qualified, but poor surface brightness. And when the dosage increased to 0. 4 pieces, plastic profile extrusion good plasticizing and test of the performance, surface brightness. But when will continue to increase the dosage to zero. 6, plastic profile extrusion is difficult, poor material plasticizing, performance testing is unqualified. This is because the lubricant to join too, form a layer of isolation film, mixed material and equipment will appear between the skid phenomenon, plasticizing due shear stress, material is not not good plasticizing, so plastic material performance test is unqualified, surface brightness down instead. Therefore, a reasonable dosage of lubricant is the key to ensure the plastic material properties and the surface brightness.
3, the dosage of the ACR impact on material surface brightness
ACR as a processing aid can improve the rigid PVC processing performance. It's join between the resin can be improved and the mechanical friction coefficient, make the hard PVC by sliding wall body into the wall body, increase the shear stress, material to get good plasticizing, which will have a good surface brightness.
when the dosage of ACR in the recipe is 0. Five copies. Plastic material surface brightness is poorer, the physical properties of the test is not qualified. This is because the ACR dosage is too little, can't make PVC well into the wall body, the material can not get enough of the shear stress, not good plasticizing, therefore, the physical properties of plastic material and surface brightness are poor. When the ACR with force big mouth, it is material can get enough shear stress, good plasticizing, therefore, plastic material physical properties and surface brightness are improved. But the dosage of ACR was not the more the better, as the addition of ACR can accelerate material plasticizing process. If material plasticizing early, before extrusion die die, there will be a part of the material decomposition, it also can make the material surface brightness. So, find out the appropriate dosage of ACR, make its good teamwork with other additives, will greatly improve the material surface and internal performance.
4, the influence of the mould surface quality of the plastic material surface brightness
mould is one of the core equipment of plastic profile extrusion production, mold surface quality directly affect the plastic material surface brightness, especially the surface quality of finished mould. Because hot after entering into the parison shape touch through vacuum adsorption and cooling to finalize the design for the products. Due to the effect of vacuum adsorption, within the finalize the design mode, type billet surface on the moving stock mould surface. If the stock mould surface polishing quality is bad, it is bound to cause the surface quality of plastic material. In addition, stock mould in use process, because of the improper maintenance or material corrosion, can also cause roughness decreased, which will inevitably affect the surface quality of the plastic material. So, mould surface quality is an important factors affecting plastic material surface brightness.
1, the dosage of active calcium carbonate surface brightness of plastic material of
packed in plastic different profile production is necessary, it can reduce cost, but also can improve some performance of the plastic material, such as section size after heating rate reduce and improve the rigidity, etc. Active calcium carbonate is relatively commonly used in the production of plastic material of a kind of packing, how much the amount of it affect the surface brightness of plastic material.
when the dosage of active calcium carbonate is 15 kg, the test of the plastic material performance, surface brightness is good. When the dosage increased to 20 kg, while the profile test of the performance, but the surface brightness decreases obviously, this is because the active calcium carbonate oil absorption value is higher, after joining the amount too much, active calcium carbonate to absorb the lubricant in plastic material formula, which reduces the surface brightness of plastic material.
2, the dosage of the PE wax on the surface brightness of plastic material of
PE wax is a relatively common external lubricant. During processing, under the pressure, it is easy to squeeze from the mixed materials, move the analysis to the surface, PE molecular orientation arrangement, polar groups to the metal surface, by physical adsorption and chemical bonds to form a lubricant molecular layer, therefore, it can reduce the friction on the surface of the polymer and equipment, to improve the surface brightness plastic material.
when the dosage of PE wax is 0. 2, the material performance testing qualified, but poor surface brightness. And when the dosage increased to 0. 4 pieces, plastic profile extrusion good plasticizing and test of the performance, surface brightness. But when will continue to increase the dosage to zero. 6, plastic profile extrusion is difficult, poor material plasticizing, performance testing is unqualified. This is because the lubricant to join too, form a layer of isolation film, mixed material and equipment will appear between the skid phenomenon, plasticizing due shear stress, material is not not good plasticizing, so plastic material performance test is unqualified, surface brightness down instead. Therefore, a reasonable dosage of lubricant is the key to ensure the plastic material properties and the surface brightness.
3, the dosage of the ACR impact on material surface brightness
ACR as a processing aid can improve the rigid PVC processing performance. It's join between the resin can be improved and the mechanical friction coefficient, make the hard PVC by sliding wall body into the wall body, increase the shear stress, material to get good plasticizing, which will have a good surface brightness.
when the dosage of ACR in the recipe is 0. Five copies. Plastic material surface brightness is poorer, the physical properties of the test is not qualified. This is because the ACR dosage is too little, can't make PVC well into the wall body, the material can not get enough of the shear stress, not good plasticizing, therefore, the physical properties of plastic material and surface brightness are poor. When the ACR with force big mouth, it is material can get enough shear stress, good plasticizing, therefore, plastic material physical properties and surface brightness are improved. But the dosage of ACR was not the more the better, as the addition of ACR can accelerate material plasticizing process. If material plasticizing early, before extrusion die die, there will be a part of the material decomposition, it also can make the material surface brightness. So, find out the appropriate dosage of ACR, make its good teamwork with other additives, will greatly improve the material surface and internal performance.
4, the influence of the mould surface quality of the plastic material surface brightness
mould is one of the core equipment of plastic profile extrusion production, mold surface quality directly affect the plastic material surface brightness, especially the surface quality of finished mould. Because hot after entering into the parison shape touch through vacuum adsorption and cooling to finalize the design for the products. Due to the effect of vacuum adsorption, within the finalize the design mode, type billet surface on the moving stock mould surface. If the stock mould surface polishing quality is bad, it is bound to cause the surface quality of plastic material. In addition, stock mould in use process, because of the improper maintenance or material corrosion, can also cause roughness decreased, which will inevitably affect the surface quality of the plastic material. So, mould surface quality is an important factors affecting plastic material surface brightness.
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