Flame-retardant seamless belt, method of manufacturing flame-retardant seamless belt, and image-forming apparatus having flame-retardant seamless belt
A manufacturing method and seamless technology, applied in transportation and packaging, belts, and other household appliances, etc., can solve the problems of complex structure of image forming devices, high environmental dependence, and difficult copying voltage, etc., to achieve reduced environmental dependence, Excellent flame retardancy, easy resistance effect
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Embodiment 1
[0081] The anion-containing salt described in the above chemical formula 1, i.e. bis(trifluoromethanesulfonyl)imide lithium, is mixed with a polyester thermoplastic elastomer (thermoplastic polyurethane elastomer P90BD, manufactured by Toyobo) in a weight ratio of 10%. Polyesters and polyethers) were blended and then dry-blended, put into the hopper of a twin-screw extruder, and kneaded at a set temperature of 210° C. to obtain a conductive masterbatch. The measured value of the resin temperature at this time was 230°C.
[0082] Melamine (MC640: manufactured by Nissan Chemical) was mixed with thermoplastic polyurethane elastomer P90BD in a weight ratio of 50%, and then dry-blended, put into the hopper of a twin-screw extruder, and mixed at a set temperature of 210°C. Refining to obtain flame retardant masterbatch. The measured value of the resin temperature at this time was 230°C.
[0083] With respect to 100 parts by weight of polyurethane elastomer P90BD, the content of li...
Embodiment 2
[0106] Conductive masterbatch and flame retardant masterbatch were prepared by the same method as in Example 1. Except that the bis(trifluoromethanesulfonyl)imide lithium in the material used for making the belt is matched by 2.5 parts by weight relative to the thermoplastic polyurethane elastomer P90BD100 parts by weight, all other materials are mixed according to the method of Example 1. After smelting, it is formed into a flame-retardant seamless belt. Belt inner diameter, average thickness, and width are also the same as in Example 1.
[0107] Volume resistivity: 10 to the 7.2th power (Ω·cm)
[0108] In-plane deviation: 0.4
[0109] Environment dependency: 2.4
[0110] Surface roughness: R Z = 1.1 μm
[0111] Display image: good
[0112] Flame retardancy: ○
Embodiment 3
[0114] The belt obtained in Example 1 is electrostatically coated with an electrostatic coating device on its outer peripheral surface to obtain a coating layer. It is a coating material prepared by diluting with water and adding a leveling agent. The coating layer has a thickness of 5 μm.
[0115] Volume resistivity: 10 to the 9.4th power (Ω·cm)
[0116] In-plane deviation: 0.4
[0117] Environment dependency: 1.6
[0118] Surface roughness: R Z = 1.6μm
[0119] Image display: good (The toner transfer efficiency in the image display test was improved due to the effect of the coating layer, and the toner transfer residue was reduced. Also, the efficiency of cleaning the residual toner by the cleaning belt was improved.)
[0120] Flame retardancy: ○
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Abstract
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