English to Russian Tech/Engineering Engineering: Industrial PTFE Fluoropolymer Resins

Добрый день!
Помогите, пожалуйста, перевести "charge-to-charge bonds" в следующем контексте:

Previous work has pointed out that about 15 mechanical properties plus several electrical and chemical properties of PTFE resins are influenced by molding and sintering conditions. Most notably affected are flex life, permeability, stiffness, resiliency, and impact strength. The five basic factors that influence these end-product properties are:

- Presence of Macroscopic Flaws—Internal bubbles, tears, foreign impurities, shear planes, or poor charge-to-charge bonds.
- Extent of Microporosity—Number and size of microscopically visible voids created by imperfect particle fusion.
- Percent Crystallinity—A percentage based on the weight fraction of a sample consisting of polymer chains fitted in a close-packed, ordered arrangement.
- Molecular Weight—A measure of the average length of polymer chains.
- Degree of Orientation—A measure of the extent of alignment of polymer chains in a given direction.

Заранее спасибо!