Resin pocket

Fig. 7.18. Source of shrinkage stresses (a) rigid inclusion embedded in a matrix (b) resin pockets surrounded by fibers in hexagonal and square arrays. After Hull (1981).

Resin pocket around Ihrough the-thickrtess reinior cements... 

The Resins Pocket Guide is a global information source for plastics resins, additives, reinforcements, and fillers. It includes information on suppliers, products, trade names, and sales offices. Suppliers from over fifty countries are listed with address, telephone, toll-fi-ee telephone, fax, telex, e-mail, and web information provided. Supplier representatives in 146 countries are also included with address, telephone, and fax information. The product listings include information on resins, compounds, additives, reinforcements, and fillers for 189 product categories. Each item under a product category includes supplier name, country, and trade name. 

Visual visually inspect surface for dry plies, wrinkles, and other surface damage. A strongly backlit visual inspection is often used on fiberglass for detection of voids, resin pockets, and cracking. 

Pitch pocket n. An opening between the growth rings containing resin in certain softwoods. Syn resin pocket, pitch streak. 

Resin pocket n. An apparent accumulation of excess resin in a small localized area between laminations in a laminated-plastic article, visible on a cut edge or a molded surface. 

Microcut of a multi-axial laminate, approximately 5.5 mm thick, made from NCF the upper surface reveals a typical structure after peel ply removal (in contrast, the lower surface was in direct contact with the mould) in addition, the microcut reveals some defects such as pores, resin pockets, and wavIness due to the stitching yarn. 

Resin pockets Insufficient compaction imprecise lay-up inappropriate vacuum set-up configuration Deteriorated durability... 

Balsams are sticky, clear exudates from wood and resin pockets in the bark of certain conifers. The most useful one, Canada balsam, has been obtained from Abies balsamea (2). Canada balsam is mainly used in microscopy. It is produced on a small scale from the gum exuded from the blister resin pockets in the winter. A similar product, Oregon balsam, was obtained from Pseudotsuga menziesii (2). Production and value data for Canada balsams are available only up 1965 (6) because of infrequently collected statistics. The amount produced in 1965 was over 51000 pounds. Sandermann (25) discussed the physical and chemical properties of 33 different balsams, their major components, and qualitative tests to distin-... 

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