im going through a divorce with my with i brought here from china in 2010 ,do you know when the 10 year support clause in the immigration start

The affidavit of support support requirements begin when your spouse becomes a lawful permanent resident. This would be the date she entered the United States with an immigrant visa or adjusted her status in the United States. The affidavit of support remains in effect until one of the following occurs: (1) your spouse becomes a citizen; (2) has worked or can receive credit for 40 quarters of coverage under the Social Security Act; (3) is no longer a resident and has departed the United States; (4) is in removal and is granted adjustment of status on a new basis; or (5) dies. You can read more about the affidavit of support at http://myattorneyusa.com/sponsoring-for-immigrant-visas-or-adjustment-of-status.