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Changshu smooth plastic products factory talk about PVC plastic different profile formula
by：CSSSLD
2021-01-23
PVC plastic special-shaped material at low price, the characteristics of weathering and corrosion by the light is widely used in building decoration industry, PVC plastic special-shaped material is made of what?
Believe there are many interested partners, the smooth da plastic products factory in changshu talk about PVC plastic different profile formula of related issues, interested friends come together to take a look.
1, the hard PVC plastic different profile do not usually add or less add plastic plasticizer, this will cause the hard PVC plastic mobility is poor. In the forming process and 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 progress of the mold temperature is a certain limit. If above a PVC plastic analysis temperature means less than normal controls. Therefore, in the formulation plan, must be better than the hard PVC forming temperature and analyzing temperature close to the characteristics of just even 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, credentials window 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 connection, each other means than solitary immediately matching. When choosing auxiliaries, should fully consider various aspects factors. What about physical property indexes are not independent factors change, often influence each other, restrict 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. And as for PVC heat resistance, the chloride can progress the PVC glass transition temperature Tg. Progress, but also corresponding melting temperature Tm, so that the additive and activity markedly worse.
1, the hard PVC plastic different profile do not usually add or less add plastic plasticizer, this will cause the hard PVC plastic mobility is poor. In the forming process and 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 progress of the mold temperature is a certain limit. If above a PVC plastic analysis temperature means less than normal controls. Therefore, in the formulation plan, must be better than the hard PVC forming temperature and analyzing temperature close to the characteristics of just even 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, credentials window 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 connection, each other means than solitary immediately matching. When choosing auxiliaries, should fully consider various aspects factors. What about physical property indexes are not independent factors change, often influence each other, restrict 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. And as for PVC heat resistance, the chloride can progress the PVC glass transition temperature Tg. Progress, but also corresponding melting temperature Tm, so that the additive and activity markedly worse.
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