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Factors Affecting The Deformation Of Rubber Floor Finished Product Size
- Sep 20, 2018 -

The rubber floor sheet is different from the rubber floor coil, but each link has the potential to affect the product size and the wide-range instability. From the technical side of the analysis, the rubber material in the molecular chain under the action of stress for a long time, will occur molecular chain shift, resulting in stress relaxation, some conditions can even be relaxed to 0, after stress removal, the recovery ability of rubber molecules to reduce or even lose, resulting in permanent deformation.

The higher cross-linking degree can reduce the displacement and stress relaxation of rubber molecule, maintain high recovery ability and reduce compression permanent deformation. Rubber floor sheet products are through high-temperature vulcanization process, vulcanized rubber compression permanent deformation usually at a higher temperature. The post-vulcanization effect of the non-consumable vulcanizing agent causes the deformed rubber molecule to be bound by the newly formed cross-linking bond, and the recovery of the rubber molecule after the stress is removed, resulting in a large permanent deformation. This post-crosslinking effect is different from the degree of cross-linking that is mentioned in the 1th.

The parking time of the rubber floor sheet is generally at least 24 hours to minimize his elasticity, and the cutting edge technology may affect his size difference, so each link must be strictly controlled. Rubber floor in the low-temperature compression environment caused by deformation, for different rubber varieties, the measures taken are different, such as for the natural rubber of easy to knot, can be modified or high temperature vulcanization to produce a certain amount of trans-structure, destroying its low-temperature knot character. For neoprene, ethylene propylene rubber, it is necessary to choose the varieties of refractory, and the use of cold-resistant plasticizer, to reduce its glass temperature. The use of cold-resistant plasticizer for the main foot of the rubber to reduce the glass temperature, sometimes it may be necessary to use some unconventional methods to achieve the goal.