Need to create email button on a form that sends the form fields (or form) to QB User directly.

If the email address is a field on the record, then you can use my post just above this one to "jiggle" a toggle field (ie a checkbox field) on the record and sent an email Notification to the email address.

If the intended recipient is  not a Quick Base user then be sure to set the Type of email Notification to "Open".