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The application of polypropylene
by：CSSSLD
2021-01-23
Article/VIP
polypropylene injection tooling mixing in pp material, nano calcium carbonate has obvious induced effect to the crystallization of pp, had heterogeneous nucleation effect, increase the crystallinity of pp. Nano-sized calcium carbonate particle size small, large specific surface area and a lot of surface atomic number, crystal particles small, make the PP. Because of nano-sized calcium carbonate and polymer interface bonding strength is high, so as to improve the impact strength of PP and mechanical properties of polymer. Experimental results show that with the increase of filling amount, melting absorption showed a trend of first fall later. Nano-sized calcium carbonate in less than 3. 5%, its good dispersibility in the matrix, to improve, the crystallinity of PP. When the content is more than 3. After a 5%, due to the reunion phenomenon aggravate, inorganic particles heterogeneous nucleation effect is abate, as a result, the crystallinity of PP. For ordinary calcium carbonate, although has induced effect to the crystallization of PP, but the particles in PP matrix interface bonding strength is poor, therefore, with the increase of ordinary calcium carbonate content, mechanical properties of the materials decreased. The comprehensive mechanics performance of the PP/nanometer calcium carbonate materials can significantly better than that of PP and PP micron grade calcium carbonate composite materials.
PVC PVC is currently one of the largest general plastic dosage, with the development of the blending modification technology, its application field is more and more widely. Traditional toughening modification of PVC resin is usually in adding rubber elastomer, but in jiangdu material precious rigidity, heat resistance, dimensional stability. Improved performance with nanometer calcium carbonate, the mechanical properties of PVC. Research shows that when the dosage of nanometer calcium carbonate was gradually increased, the tensile strength of the system increases, 58, there was a maximum when the dosage of 10% 123% of pure PVC, to impose its dosage, system tensile strength decreased. Notched impact strength of nanometer calcium carbonate are also join system has a larger increase.
silicone nano calcium carbonate on the properties of silicone rubber is mainly the influence of moisture content, particle size and surface state. Under normal circumstances, the water can meet the requirements of nanometer calcium carbonate, even if there is a small amount of water, but can be by kneading process, to a certain temperature and pressure relief dehydration, make it meet the requirements. The size of the calcium carbonate particle size on the tensile strength of silicone rubber and tore off the influence of tensile elongation. Calcium carbonate particle size is smaller, and the greater the surface area of siloxane molecular chain, the more powerful, the effect on the tensile strength and elongation at failure of silicone rubber. Surface state and influence of silicone rubber are the important factors of tensile strength and elongation at failure, nanometer calcium carbonate by fatty acid surface treatment, surface due to the hydrophilic lipophilic property, wetting good dispersion with silicone rubber, nanometer calcium carbonate dispersed evenly in the silicone rubber, not only enhance the effect, and improve the rheological properties of silicone rubber, and the calcium carbonate particle size is smaller, the better the thixotropy of the system.
nano calcium carbonate filler in the polymer, itself has the function of reinforcing filler, significantly improve the application performance of polymer has been the consensus of people, mainly in plastic products improve mechanical performance, thermodynamic properties, improve the processing performance.
more wonderful sharing: 【 Injection molding processing VIP 】 Polymer modification and application of direct hits.
or copy the link: http://www. csssld。 cn//html/2016/Trade_0326/183。 HTML
nantong on plastic products factory's official website: http://www. csssld。 Cn / /
source network trimmer/injection molding processing and VIP
polypropylene injection tooling mixing in pp material, nano calcium carbonate has obvious induced effect to the crystallization of pp, had heterogeneous nucleation effect, increase the crystallinity of pp. Nano-sized calcium carbonate particle size small, large specific surface area and a lot of surface atomic number, crystal particles small, make the PP. Because of nano-sized calcium carbonate and polymer interface bonding strength is high, so as to improve the impact strength of PP and mechanical properties of polymer. Experimental results show that with the increase of filling amount, melting absorption showed a trend of first fall later. Nano-sized calcium carbonate in less than 3. 5%, its good dispersibility in the matrix, to improve, the crystallinity of PP. When the content is more than 3. After a 5%, due to the reunion phenomenon aggravate, inorganic particles heterogeneous nucleation effect is abate, as a result, the crystallinity of PP. For ordinary calcium carbonate, although has induced effect to the crystallization of PP, but the particles in PP matrix interface bonding strength is poor, therefore, with the increase of ordinary calcium carbonate content, mechanical properties of the materials decreased. The comprehensive mechanics performance of the PP/nanometer calcium carbonate materials can significantly better than that of PP and PP micron grade calcium carbonate composite materials.
PVC PVC is currently one of the largest general plastic dosage, with the development of the blending modification technology, its application field is more and more widely. Traditional toughening modification of PVC resin is usually in adding rubber elastomer, but in jiangdu material precious rigidity, heat resistance, dimensional stability. Improved performance with nanometer calcium carbonate, the mechanical properties of PVC. Research shows that when the dosage of nanometer calcium carbonate was gradually increased, the tensile strength of the system increases, 58, there was a maximum when the dosage of 10% 123% of pure PVC, to impose its dosage, system tensile strength decreased. Notched impact strength of nanometer calcium carbonate are also join system has a larger increase.
silicone nano calcium carbonate on the properties of silicone rubber is mainly the influence of moisture content, particle size and surface state. Under normal circumstances, the water can meet the requirements of nanometer calcium carbonate, even if there is a small amount of water, but can be by kneading process, to a certain temperature and pressure relief dehydration, make it meet the requirements. The size of the calcium carbonate particle size on the tensile strength of silicone rubber and tore off the influence of tensile elongation. Calcium carbonate particle size is smaller, and the greater the surface area of siloxane molecular chain, the more powerful, the effect on the tensile strength and elongation at failure of silicone rubber. Surface state and influence of silicone rubber are the important factors of tensile strength and elongation at failure, nanometer calcium carbonate by fatty acid surface treatment, surface due to the hydrophilic lipophilic property, wetting good dispersion with silicone rubber, nanometer calcium carbonate dispersed evenly in the silicone rubber, not only enhance the effect, and improve the rheological properties of silicone rubber, and the calcium carbonate particle size is smaller, the better the thixotropy of the system.
nano calcium carbonate filler in the polymer, itself has the function of reinforcing filler, significantly improve the application performance of polymer has been the consensus of people, mainly in plastic products improve mechanical performance, thermodynamic properties, improve the processing performance.
more wonderful sharing: 【 Injection molding processing VIP 】 Polymer modification and application of direct hits.
or copy the link: http://www. csssld。 cn//html/2016/Trade_0326/183。 HTML
nantong on plastic products factory's official website: http://www. csssld。 Cn / /
source network trimmer/injection molding processing and VIP
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