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Changshu smoothly da plastic products factory about PVC plastic different profile formula problem
by：CSSSLD
2021-01-23
PVC plastic different profile is one of the common engineering plastics, mainly used in construction, automotive and other industries, such as price, weather resistance, easy processing characteristics to win customers recognition.
PVC plastic different profile is how to produce?
Believe many people will be interested, changshu well below da plastic products factory is PVC plastic different profile the introduction, the formulation of relevant issues of interest to take a look together!
1, rigid polyvinyl chloride (PVC) : don't usually like plastic different profile plus or less and plastic plasticizer, this will cause the hard PVC plastic mobility is poor. And in the process of extrusion forming requirements of plastic in the viscous flow state, in order to make the plastic has a certain level of activity, must advance molding temperature. But the extrusion temperature there is a certain limit. If more than a PVC plastic analysis can't normal temperature control. In the formulation plan, consider hard PVC forming temperature and analyzing temperature close to the characteristics of just choose reasonable formula to complement the defect.
2, evaluation formula and should be given priority to with finished product physical property indexes, is the difference of physical property indexes and rely on finished products using situation and conditions, for example the credential frame in the case of indoor and outdoor use, luster, the difference of size range, the required property index is different also.
3, PVC plastic: formula of each component has a certain relationship between each other. When choosing auxiliaries, should fully consider various aspects factors. About the physical index is not independent factors change, often influence each other. As to the progress of PVC resistance to blow, adding rubber or elastic polymer is useful, but cause modulus, rigidity and heat resistance of landing. For progress of PVC heat resistance, its chloride can progress the PVC glass transition temperature Tg. Melting temperature Tm also changed accordingly, so that the processability and active change obviously.
1, rigid polyvinyl chloride (PVC) : don't usually like plastic different profile plus or less and plastic plasticizer, this will cause the hard PVC plastic mobility is poor. And in the process of extrusion forming requirements of plastic in the viscous flow state, in order to make the plastic has a certain level of activity, must advance molding temperature. But the extrusion temperature there is a certain limit. If more than a PVC plastic analysis can't normal temperature control. In the formulation plan, consider hard PVC forming temperature and analyzing temperature close to the characteristics of just choose reasonable formula to complement the defect.
2, evaluation formula and should be given priority to with finished product physical property indexes, is the difference of physical property indexes and rely on finished products using situation and conditions, for example the credential frame in the case of indoor and outdoor use, luster, the difference of size range, the required property index is different also.
3, PVC plastic: formula of each component has a certain relationship between each other. When choosing auxiliaries, should fully consider various aspects factors. About the physical index is not independent factors change, often influence each other. As to the progress of PVC resistance to blow, adding rubber or elastic polymer is useful, but cause modulus, rigidity and heat resistance of landing. For progress of PVC heat resistance, its chloride can progress the PVC glass transition temperature Tg. Melting temperature Tm also changed accordingly, so that the processability and active change obviously.
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