It depends on the interest rate and terms of this specific loan. Also your capabilities to pay it on time even if you lose all the funds invested on Bitcoin is important to consider since it’s not guaranteed that you will be in profit by the time you will need to repay the loan.

Overall, I don’t disagree to the idea of doing it since it’s for investment purposes. You just need to balance and consider everything before you do that loan because it might cause you financial problem later on if you didn’t manage the repayment of the loan.