Fast nondestructive method to evaluate the curative system of rubber goods

Patent metadata

Field	Value
Publication number	US-2025137949-A1
Application number	US-202318495481-A
Country	US
Kind code	A1
Filing date	Oct 26, 2023
Priority date	Oct 26, 2023
Publication date	May 1, 2025
Grant date	—

Abstract

The patent application discloses a method for nondestructively determining information of an element disposed within a polymer body comprising a cure system extending continuously throughout. The method comprises the steps of directing x-rays onto a surface of the body, wherein the x-rays are directed through the body, and wherein target atoms in the cure system of the polymer body emit x-ray fluorescence; and receiving the x-ray fluorescence and determining composition information of the cure system within the body.

First claim

1 - 20 . (canceled)

21 . A method for nondestructively determining information of an element disposed within a polymer body comprising a cure system extending continuously throughout, wherein the method comprises the steps of:
directing x-rays onto a surface of the body, wherein the x-rays are directed through the body, and wherein target atoms in the cure system of the polymer body emit x-ray fluorescence; and receiving the x-ray fluorescence and determining composition information of the cure system within the body.

22 . The method as recited in claim 1 further comprising directing x-rays onto a number of places on the surface, and receiving each respective x-ray fluorescence.

23 . The method as recited in claim 1 , wherein the steps of directing and receiving are conducted over an entire surface of the body.

24 . The method as recited in claim 1 , wherein the cure system in the polymer body comprises a sulfur cure system or a peroxide cure system.

25 . The method as recited in claim 1 , wherein the polymer body comprises rubber materials.

26 . The method as recited in claim 1 , wherein the target atoms comprise sulfur.

27 . The method as recited in claim 1 , wherein the target atoms comprise oxygen.

28 . The method as recited in claim 1 , wherein the cure system in the polymer body comprises a sulfur cure system.

29 . The method as recited in claim 1 further comprising X-ray energy's passing to the target atoms in the cure system of the polymer body.

30 . The method as recited in claim 1 , wherein the step of determining composition information of the cure system within the polymer body comprising basing a standard composition of the cure system.

31 . The method as recited in claim 10 , wherein the standard composition of the cure system comprises sulfur standard.

32 . The method as recited in claim 10 , wherein the standard composition of the cure system comprises oxygen standard.

33 . A method for nondestructively obtaining measurement information of target atoms disposed within polymeric materials comprising a cure system extending continuously throughout, the method comprising the steps of:
directing x-ray energy onto a surface of the polymeric materials, wherein the x-ray energy passes to the target atoms in the cure system to emit fluorescence; and receiving the fluorescence and determining the measurement information of the target atoms therefrom.

34 . The method as recited in claim 13 , wherein the cure system in the polymer body comprises a sulfur cure system or a peroxide cure system.

35 . The method as recited in claim 13 , wherein the target atoms are disposed in the polymeric materials.

36 . The method as recited in claim 13 , wherein the target atoms comprise sulfur.

37 . The method as recited in claim 13 , wherein the target atoms comprise oxygen.

38 . A method for nondestructively examining a cure system of a polymeric materials having the cure system extending therethrough, the method comprising:
directing x-ray energy onto a surface of the polymeric materials, wherein the x-ray energy passes to one or more target atoms in the construction, and wherein the one or more target atoms emit fluorescence; and receiving the fluorescence and from it examining information relating to a percentage of the target atoms within the polymeric materials.

39 . The method as recited in claim 18 , wherein the cure system in the polymer body comprises a sulfur cure system or a peroxide cure system.

40 . The system as recited in claim 18 , further comprising a step of determining the cure system is a sulfur cure system or a peroxide cure system basing on a percentage of the target atoms with the polymeric materials.

Assignees

• Cnpc Usa Corp
• Beijing Huamei Inc
• China Nat Petroleum Corp

Inventors

• Meng Scott
• Dunne Timothy
• Fang Yang
• Liu Huailiang

Classifications

• G01N2223/623

  plastics · CPC title

• G01N23/223 Primary

  by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence · CPC title