For uncharged polyvinyl chloride (U-PVC), since there is no plasticizer, there is no DEHP to ooze, but stabilizers are usually added to the machining process. At present, most of them are lead salt stabilizers, lead is a toxic substance, which will seep it out during use, endanger human health, and cannot be ignored. There is currently non-lead salt stabilizer, but the cost is high, and it has not been promoted.
HDPE anti-seepage film: High density polyethylene geomembrane is an anti-seepage anti-corrosion material, which is widely used in various projects of various anti-seepage and anti-corrosion requirements. High-quality high-density polyethylene native resin, main component is high-density polyethylene, about carbon black, micro antioxidant and heat stabilizer, anti-aging material, ultraviolet absorber, no additional additives, fillers, and expansion agents, three-layer total Squeeze technology. The resin used is a native polyethylene resin designed for the application of a flexible anti-graft film. . Features of the anti-seepage geomembrane:. Geomembrane.
In order to avoid the occurrence of precipitation, we can take the following measures: First, coordinate the use of various lubricants (low, medium, high melting points, internal and outer and outer and outer and outer and outer, mutual supplements, compensation; To minimize the amount of lubricant, minimize the amount of lubricant while ensuring fluidity and plasticization; the third is the choice of stabilizers, try to select high quality. If you don't understand, you can find our platform; fourth, add a small amount of ultrafine silica to improve precipitation.
Calcium zinc stabilizers can be used as non-toxic stabilizers for food packaging, medical devices, drug packaging, but have relatively low stability, and have a large transparency of calcium stable doses. Calcium zinc stabilizers typically use polyols and antioxidants to improve their performance, recently used calcium zinc composite stabilizers in China.
In general, the stability effect of the rare earth thermal stabilizer is better than that of the metal soap stabilizer, which has a good long-term thermostability, with other stabilizers, good tolerance, no fluid pollution, stable storage, non-toxic Environmental friendly. In addition, the rare earth element has a unique coupling effect to the CaCO3 to promote the polyvinyl chloride plasticization effect, and the amount of CaCO3 can be increased, reducing the use of the processing aid ACR, effectively reducing costs. The stability of rare earth on polyvinyl chloride is its unique synergistic effect. Suitable mating of rare earths and certain metals, ligands, and conservation agents can greatly improve stability.
Factory cold regeneration technology is a stabilizer (foam asphalt and cement), new material (gravel or stone), new material (gravel or stone), milling material, transferred to the site concentrated stabilizer (foam or stone), milling material To the paver, paving, compaction, regenerative material as a new road structure layer, improve the road structure intensity.
Henan XPS indoor decorative line sales plastic Sales PVC and vinyl chloride copolymers, and the heat stabilizer must be added during processing.
Light Stabilizer UV-1577 supplier Due to the different tensile speed, temperature and heat experience, the stress strain curve of the same polymer is significantly different. When the temperature is high, the thermal exercise of the macromolecular segment has exacerbated, and the change is large. For example, at room temperature, brittle polystyrene alsocomes a tough material near TG.
2-(4,6-Diphenyl-1,3,5-Triazin-2-Yl)-5-[(Hexyl)Oxy]-Phenol manufacturer When the stretching speed is improved, the segment movement does not follow the external force. In order to make the material yield, a larger external force is required, that is, the yield strength of the material is improved. In order to further improve the stretching speed, the material will eventually break the brittle breakage under higher stress.
The processing modifier should be added before the wax addition and the stabilizer. The impact modifier can be added to the heat mixer with the resin, especially for modifiers having thermal decomposition tendencies, such as CPE. The processing modifier ACR is a finer powder, and the dust is large during the stirring process, which is easy to lose with exhaust. Therefore, it is generally selected to be high in high mixed post-material temperatures, and the viscosity is added, and the loss is minimized. Liquid additives should be added slowly during the stirring process. In summary, the additives of the additive should be used as much as possible to play the effect of additives, avoiding the mutual elimination of additives, improving the effects of mutual supplement, achieving the best results.
Only small light stabilizers are suitable for LDPE because many light stabilizers are not compatible with the desired protective concentration.
UV Absorber UV 1577 factory They can flow quickly. At first, diphenyl ketone and benzole were used to protect the LDPE material. The development of organic nickel improves the life of the film. However, the use of nickel organic matter is reduced because they have a negative impact on the initial color of the environment and film.
1. Health and non-toxic, health protection. Polypropylene is an environmentally friendly material, which is completely composed of carbon and hydrogen, and does not add other harmful heavy metal stabilizers. The health performance of materials has also passed the inspection of national authorities, which can be used for domestic water transportation.
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