var strAppend ="<button id='btnUEN' class='k-primary' onclick='getCategoryByUEN(" + stronClick +  ")'>"+ name +" </button>"
$("#nav_clacom_1474").append(strAppend);

<button id='btnUEN' class='k-primary' onclick='getCategoriaByUEN('1','TEST AND TEST')'>TEST AND TEST</button>

<button id='btnUEN' class='k-primary' onclick='getCategoriaByUEN('1','TEST'="" AND="" TEST')'="">TEST AND TEST</button>