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Performance Characteristics Of ADC Blowing Agents

Edit:Weifang Yaxing Chemical Co.,Ltd   Date:Sep 04, 2017

Performance characteristics of ADC Blowing Agents
ADC foam agent full name of one-component polyurethane foam sealant, commonly known as blowing agent, styrofoam, PU sealant, I will tell you about the performance of ADC Blowing Agents.
ADC Blowing Agents generally dry time in about 10 minutes (room temperature 20 ℃ environment), the whole dry time with the ambient temperature and humidity are different, under normal circumstances, the summer dry time about 4-6 hours, about zero in winter It takes 24 hours or more to be dry. Under normal conditions of use (and in the case of a coating on its appearance), it is estimated that the service life is not less than ten years, in the temperature range of -10 ℃ ~ 80 ℃ curing foam to maintain good flexibility and bonding force. After curing the foam has a filling, bonding, sealing and other functions. Another flame retardant ADC Blowing Agents to achieve B and C-class flame retardant.
ADC Blowing Agents can be injection molding and extrusion molding. However, because the CPE contains a large number of chlorine atoms, the molding process should be added in the CPE a certain proportion of heat stabilizer, antioxidants and light stabilizer to protect its composition and performance stability. The low chlorine content of the CPE can also be used for rotational molding and blow molding.
At present, ADC Blowing Agents in the plastic products industry is mainly used for PVC, HDPE and MBS modifier. In the PVC resin mixed with a certain percentage of CPE, can be used general PVC processing equipment extrusion molding tube, plate, wire insulation coating, profile, film, shrink film and other products; can also be used to coat, compression mold Plastic, laminates, adhesives, etc .; used as PVC, PE modifier, can improve product performance, so that the flexibility of PVC, toughness and low temperature performance have been improved, embrittlement temperature can be reduced to -40 ℃; , Heat resistance and chemical stability is also better than other modifiers; as PE modifier, its products can be printed, flame retardant and flexibility to improve the PE foam density increases.
ADC Blowing Agents full name single component polyurethane foam sealant commonly known as blowing agent, styrofoam, PU sealant, aerosol technology and polyurethane foam technology is the product of cross-combination. So in our daily life, how do we judge the quality of ADC foam is good or bad, do you know the performance of polyurethane foam agent?
First, ADC performance requirements of blowing agent
General dry time in about 10 minutes (room temperature 20 ℃ environment), the whole dry time with the ambient temperature and humidity are different, under normal circumstances, the summer dry time about 4-6 hours, about zero in winter it takes 24 hours Or longer to be dry. Under normal conditions of use (and in the case of a coating on its appearance), it is estimated that the service life is not less than ten years, in the temperature range of -10 ℃ ~ 80 ℃ curing foam to maintain good flexibility and bonding force. After curing the foam has a filling, bonding, sealing and other functions. Another flame retardant ADC Blowing Agents to achieve B and C-class flame retardant.
Second, determine the quality of ADC Blowing Agents good or bad method
1, such as gun-type ADC Blowing Agents, see the gun effect, playing foam, the bubble out of the bubble to be smooth, not too thin can not be too thick, too thin foam is not large, and will collapse, too thick for the bubble Hair dry, easy to shrink the bubble;
2, the ADC Blowing Agents hit the newspaper, playing a layer, the next day to see whether this layer of foam at both ends of the tilt, such as Alice, Ming foam shrink, Alice higher, more severe shrinkage; The bubble is good;
3, cut the foam, look at the cells, cells evenly fine as a good bubble, such as a large cell, and the density is bad for the defective;
4, look at the foam surface of ADC Blowing Agents, good foam surface was groove-like, smooth but glossy is not very bright; poor foam surface smooth, with folds;
5, see ADC foam agent foam size, good foam foam full rounded; poor foam foam small, and showing collapse;
7, to see the adhesion of ADC Blowing Agents, good foam adhesive strength, poor adhesion is poor, poor adhesion of the bubble, the foam is flexible, the bubble is good;