Surface protecting resin member and liquid set
A surface protecting resin member includes a cured product of a composition containing an acrylic resin having a hydroxyl value within the range of 40 mgKOH/g to 280 mgKOH/g, a polyol having a hydroxyl value within the range of 40 mgKOH/g to 300 mgKOH/g, a multifunctional isocyanate, and a fluorotelomer alcohol represented by the following general formula CF 3 (CF 2 ) n —(CH 2 ) m —OH, where n is an integer of 1 or more and m is an integer within the range of 1 to 4.
1. A surface protecting resin member comprising:
a cured product of a composition containing:
an acrylic resin having a hydroxyl value within a range of 40 mgKOH/g to 280 mgKOH/g;
a polyol having a hydroxyl value within a range of 40 mgKOH/g to 300 mgKOH/g;
a multifunctional isocyanate; and
a fluorotelomer alcohol represented by the following general formula:
CF 3 (CF 2 ) n —(CH 2 ) m —OH
where n is an integer of 1 or more and m is an integer within a range of 1 to 4,
wherein a mass ratio of the fluorotelomer alcohol to a total solid content in the composition is within a range of 1 mass % to 20 mass %.
2. The surface protecting resin member according to claim 1 , wherein a mass ratio of the fluorotelomer alcohol bonded to the multifunctional isocyanate in the cured product to a total amount of the fluorotelomer alcohol in the composition is 60 mass % or more.
3. The surface protecting resin member according to claim 1 , wherein n in the general formula is within a range of 4 to 19.
4. The surface protecting resin member according to claim 3 , wherein n in the general formula is within a range of 4 to 6.
5. The surface protecting resin member according to claim 1 , wherein the acrylic resin has a side chain containing a fluorine atom.
6. The surface protecting resin member according to claim 5 , wherein a molar ratio of the side chain containing a fluorine atom to all side chains of the acrylic resin is 7% or more.
7. The surface protecting resin member according to claim 1 , wherein the polyol has hydroxy groups bonded to each other via a carbon chain having 6 or more carbon atoms.
8. The surface protecting resin member according to claim 1 , further containing a particle.
9. The surface protecting resin member according to claim 1 , wherein:
the surface protecting resin member has a dynamic friction coefficient μ1 within a range of 0.8 to 1.5 in an environment of a temperature of 23° C. and a humidity of 55%, and
a ratio of a dynamic friction coefficient μ2 of the surface protecting resin member in an environment of a temperature of 23° C. and a humidity of 55% after a wear resistance test to the dynamic friction coefficient μ1, [μ2/μ1], is within a range of 0.8 to 1.2, the wear resistance test being a test in which a surface of a surface protecting resin member is rubbed back and forth 50 times with steel wool (#0000) under a load of 200 g.
10. A liquid set for producing a surface protecting resin member comprising:
the liquid set selected from:
a liquid set containing liquid A1 containing an acrylic resin having a hydroxyl value within a range of 40 mgKOH/g to 280 mgKOH/g, liquid A2 containing a polyol having a hydroxyl value within a range of 40 mgKOH/g to 300 mgKOH/g, and liquid B1 containing a multifunctional isocyanate; and
a liquid set containing liquid A containing an acrylic resin having a hydroxyl value within a range of 40 mgKOH/g to 280 mgKOH/g and a polyol having a hydroxyl value within a range of 40 mgKOH/g to 300 mgKOH/g and liquid B2 containing a multifunctional isocyanate,
wherein at least one of the liquid A1, the liquid A2, and the liquid B1, or at least one of the liquid A and the liquid B2 contains a fluorotelomer alcohol represented by the following general formula:
CF 3 (CF 2 ) n —(CH 2 ) m —OH
where n is an integer of 1 or more and m is an integer of 1 or more and 4 or less.
11. The liquid set according to claim 10 , wherein the liquid B1 contains the fluorotelomer alcohol.
12. The liquid set according to claim 10 , wherein the liquid B2 contains the fluorotelomer alcohol.
13. The liquid set according to claim 10 , wherein a mass ratio of the fluorotelomer alcohol to a total solid content in the liquid set is within a range of 1 mass % to 20 mass %.
14. The liquid set according to claim 10 , wherein n in the general formula is within a range of 4 to 19.
15. The liquid set according to claim 14 , wherein n in the general formula is within a range of 4 to 6.
16. The liquid set according to claim 10 , wherein the acrylic resin has a side chain containing a fluorine atom.
17. The liquid set according to claim 16 , wherein a molar ratio of the side chain containing a fluorine atom to all side chains of the acrylic resin is 7% or more.
18. The liquid set according to claim 10 , wherein the polyol has hydroxy groups bonded to each other via a carbon chain having 6 or more carbon atoms.
19. The liquid set according to claim 10 , wherein at least one of the liquid A1, the liquid A2, and the liquid B1, or at least one of the liquid A and the liquid B2 contains a particle.
20. A surface protecting resin member comprising:
a cured product of a composition containing:
an acrylic resin having a hydroxyl value within a range of 40 mgKOH/g to 280 mgKOH/g;
a polyol having a hydroxyl value within a range of 40 mgKOH/g to 300 mgKOH/g;
a multifunctional isocyanate; and
a fluorotelomer alcohol represented by the following general formula:
CF 3 (CF 2 ) n —(CH 2 ) m —OH
where n is an integer of 1 or more and m is an integer within a range of 1 to 4,
wherein the acrylic resin has a side chain containing a fluorine atom, and a molar ratio of the side chain containing a fluorine atom to all side chains of the acrylic resin is 7% or more.