NAVY MIL-R-24719-1989 RESINS VINYL ESTER LOW PRESSURE LAMINATING《低气压层压醋酸乙烯酯树脂》.pdf

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1、L MIL-R-ZLI7L9 93 9797906 OLL9013 b I 4 May 1989 MILITARY SPECIFICATION RESINS, VINYL ESTER, LOW PRESSURE LAMINATING This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense.

2、 1. SCOPE 1.1 Scope. This specification covers requirements for epoxy-based, vinyl ester resins suitable for lamination of boat hulls and other Naval applications. 1.2 Classification. Resin shall be of the following grades and classes, as specified (see 6.2). Grade A - General purpose. Grade B - Fir

3、e retardant. Class 1 - For use with glass fiber reinforcement. Class 2 - For use with Aramid fiber reinforcement. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standard. The following specifications and standard form a part of this document to the extent specified herein

4、. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). Beneficial comments (recommendations, additions, deletions) and any perti

5、nent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this doc

6、ument or by letter. AMSC N/A FSC 9330 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. f- 1 THIS DOCUMENT CONTAINS 15 PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- , MIL-R-2Li717.73 .- 7977906 OL1901Li m SPE

7、CIFICATIONS FEDERAL PPP-P-320 - Fiberboard; Corrugated and Solid, Sheet Stock PPP-P-1892 - Paint, Varnish, Lacquer, and Related Materials; (Container Grade), and Cut Shapes. Packaging, Packing and Marking of. MI LI TARY - MIL-L-19140- - Lumber and Plywood, Fire Retardant Treated. MIL-C-19663 - Cloth

8、, Woven Roving, for Plastic Laminate. STANDARD FEDERAL FED-STD-313 - Material Safety Data, Transportation Data and Disposal Data for Hazardous Materials Furnished to Government Activities. (Unless otherwise indicated, copies of federal and military specifications are available from the Naval Publica

9、tions and Forms Center, (ATTN: NPODS), 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) 2.2 Non-.Government Dublications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those liste

10、d in the issue of the DoDISS cited in the solicitation, documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). Unless otherwise specified, the issues of AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) C 581 - Standard Practice for Determining Chemic

11、al Resistance of Thermosetting Resins Used in Glass Fiber Reinforced Structures Intended for Liquid Service. C 582 - Standard Specification for Contact-Molded Reinforced ?%errnosetting Plastic (RTP) Laminates for Corrosion- Resistant Equipment. (DoD adopted) Plastics Under Flexural Load. D 638 D 648

12、 - Standard Test Method for Deflection Temperature of D 790 - Standard Test Methods for Flexural Properties of - Standard Test Method for Tensile Properties of Plastics. (DoD .adopted) I Unreinforced and Reinforced Plastics and Electrical Insulating Materials. (DoD adopted) D 792 - Standard Test Met

13、hods for Specific Gravity (Relative Density) and Density of Plastics by Displacement. (DoD adopted) D 2344 - Standard Test Method for Apparent Interlaminar Shear Strength of Parallel Fiber Composites by Short-Beam Method, (DoD adopted) Temperature of Reacting Thermosetting Resins. D 2471 - Standard

14、Test Method for Gel Time and Peak Exothermic # 2 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-Zq7L9 93 9999906 OLL9OL5 T ASTM (Continued) D 2583 - Standard Test Method for Indentation Hardness of Rigid D 2584 - Standard Test Method for Ign

15、ition JASS of Cured D 2734 - Standard Test Methods for Void Content of Reinforced D 2849 - Standard Methods of Testing Urethane Foam Polyol Raw D 3643 - Standard Test Method for Acid Number of Certain Alkali- E 84 - Standard Test Method for Surface Burning Characteristics Plastics by Means of a Barc

16、o1 Impressor. Reinforced Resins, (DoD adopted) Plastics. (DoD adopted) Materials. Soluble Resins. of Building Materials. (DoD adopted) (DoD adopted) (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Non-Governme

17、nt standards and other publications are normally available from These documents also .the organizations that prepare or distribute the documents. may be available in or through libraries or other informational services.) 2.3 Order of Drecedence. In the event of a conflict between the text of this do

18、cument and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained by the resin manufacturer. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sa

19、mple shall be subjected to first article inspection (see 6.4) in accordance with 4.3. 3.2 Material. The resin shall be an epoxy-based, translucent, thermo- setting vinyl ester resin suitable for hand lay-up laminating of glass or Aramid fiber reinforcement. Grade B resin shall, in addition to the ch

20、aracteristics of grade A resin, be a halogenated (chemically-bound), fire retardant resin. 3.2.1 Cure. When mixed with appropriate accelerator or promoter and catalyst in accordance with the manufacturers instructions (see 3.4), the liquid resin shall cure at room temperature (55 to 95 degrees Fahre

21、nheit (OF) and remain translucent. 3.2.2 Additives. Resin additives shall meet the following requirements specified in 3.2.2.1 through 3.2.2.3. 3.2.2.1 Class 1 resin. Additives which affect the translucency of the glass fiber laminate and preclude visual inspection shall not be used. 3.2.2.2 Thixotr

22、oDic agents. A thixotropic agent of the type and quantity in accordance with the resin manufacturers instructions may be used as necessary to minimize drainage, provided there is no deleterious effect on resin proper- ties. e It may be supplied pre-mixed with the resin by the resin manufacturer. Pro

23、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2.2.3 Tack-free surface. A small quantity of material may be added to the laminate surface coat, as recommended by the manufacturer, in order to obtain an air-curing (non-air inhibited) surface. 3.3 Toxi

24、c Droducts. The material shall have no adverse effect on the health of personnel when used for its intended purpose. this effect shall be referred by the contracting activity to the Naval Medical Command (NAVMEDCOM) who will act as an advisor to the contracting activity. Questions pertinent to 3.3.1

25、 Material safety data sheet (MSDSI. The contracting activity shall be provided a material safety data sheet at the time of contract award. shall be provided in accordance with the requirements of FED-STD-313. shall be included with each shipment of the material covered by this specification (see 6.6

26、). The MSDS The MSDS 3.4 Instructions for use, The resin manufacturer shall provide detailed instructions for use of the material with each container. The instructions shall cover the following: (a) (b) Resin, promoter or accelerator, and catalyst proportions to (c) Additives (see 3.2.2). (d) Mixing

27、 procedures. (e) Specific suitable reinforcements and surface finishes, and (f) (g) Safety precautions. Storage conditions and shelf life. achieve room temperature cure with the specified working life. specific combinations, as applicable. Any other information necessary for proper use. 3.5 Identifi

28、cation. The resin manufacturer shall identify each specific resin system by name or code number and with appropriate grade and class under this specification (see 1.2). 3.6 Shelf life. The resin system supplied shall have a shelf life of not less than 3 months. 3.7 Liquid resin. The uncured resin sh

29、all have the properties specified in table I for first article inspection. shall be within the range shown in table I. Quality conformance inspection results -4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-First article r Quality conformance MIL-R

30、-24719(SH) TABLE I. Liauid vinvl ester resin. 1.02 (grade A) 1.14 (grade B) 350 to 800 (3.5 to 8) As determined As determined As determined Property Specific gravity (min) at 77F (25C) Viscosity range at 77F (25C) cp (dPa) Gel time (minutes) Acid number Styrene content range (percent by weight) f 2%

31、 of actual first article value f 2% of actual first article value Within the range f 15% of first article value f 20% of first article value f 2% of first article value 3.7.1 Cured clear resin coatinp;. When cured under room temperature conditions, the resin shall have the properties specified in ta

32、ble II. TABLE II. Cured vinvl ester resin (1/8-inch thick clear castha),. Property Specific gravity (min) at 77F (25C) Tensile strength (min) lb/in2 (MPa) Flexural strength (min) lb/in2 (MPa) Flexural modulus (min) lb/in2 (GPa) Heat distortion temperature (min) “F (OC) Barco1 hardness (min) Elongati

33、on to failure percent (min) Requirements 1.12 (grade A) 1.24 (grade B) 10,000 (69) 15,000 (103) 450,000 (3.1). 200 (93.3) (grade A) 210 (98.9) (grade B) 30 (grade A) 35 (grade BI 4.0 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.7.2 Glass fiber

34、 reinforced laminate (for class 1 and 2 resins). Laminates of 1/4-inch (6.35 millimeters (mm) thickness, conforming to ASTM C 582 shall meet the requirements of table III. TABLE III. Glass fiber reinforced laminate (for class 1 and 2 resins). Property Tensile strength - room temperature lb/in2 (MPa)

35、 (min) Tensile modulus - room temperature lb/in2 (GPa) (min) lb/in2 (MPa) (min) lb/in2 (GPa) (min) lb/in2 (MPa) (min) Tensile strength 200F (93C) Tensile modulus 200F (93C) Flexural strength - room temperature Flexural modulus - room temperature lb/in2 (GPa) (min) lb/in2 (MPa) lb/in2 (GPa) Flexural

36、strength 200F (93C) Flexural modulus 200F (93OC) Glass content percent (max) Requirement 15,000 (103) 1.4 x lo6 (9.7) 15,000 (103) 1.0 x lo6 (6.89) 23,000 (159) 1.0 x lo6 (6.89) 20,000 (138) 0.75 x lo6 (5.5) 40 3.7.3 Fire resistance (grade B). Unfilled translucent laminates 1/8-inch thick shall have

37、 a maximum flame spread of 50 (see 4.5.6.8). 3.7.4 Chemical resistance, Laminates shall have a maximum recommended use temperature of at least 180F (82 degrees Celsius (OC) after exposure to the following liquids for a period of 1 year: diesel oil, fuel oil, gasoline, hydraulic fluid, jet fuel, kero

38、sene, motor oil, and seawater (see 4.5.6.9). 3.8 m. Laminates conditioned as specified in 4.5.1 shall meet the requirements as specified in table IV. Average values shall meet the minimum requirements in table IV, No individual specimen tested for mechanical strength (see 4.5.6.2, 4.5.6.3, and 4.5.6

39、.7) shall indicate a value lower than 80 percent of the average of the results of the five specimens tested for the property. 4.5.4) shall exceed the maximum percentage specified in table IV. No individual specimen tested for void content (see- Provided by IHSNot for ResaleNo reproduction or network

40、ing permitted without license from IHS-,-,-MIL-R-24719 73 777970b 0119OL 7 TABLE IV. Woven rovinp reinforced vinvl ester laminates. Property Resin content (percent min) Grade A Grade B Void content (percent max) Tensile strength (min) lb/in2 x lo3 (MPa) Tensile modulus (min) lb/in2 x lo6 (GPa) Flexu

41、ral strength (min) lb/in2 x lo3 (MPa) Flexural modulus. (min) lb/in2 x lo6 (MPa) (min) lb/in2 (MPa) Short-beam shear strength Requirement Class 1 43 45 3 42.0 (291) 2.25 (15.6) 45 (313) 2.0 (14.9) 4000 Class 2 50 52 4 54.4 (375) 2.50 (17.4) 27 (186) 2.25 (15.9) 2700 3.8.1 Accelerated water immersion

42、. Laminates subjected to 48 hours immersion in boiling water shall. meet the requirements of table V (see 4.5.7). Wet properties of woven roving: reinforced vinvl ester laminates. TABLE V. Property I Water absorption (percent max) Flexural strength retention (percent min) Flexural modulus retention

43、(percent min) Short-beam shear strength retention (percent min) Requirements Class 1 0.80 (grade A) .60 (grade B) 70 (grade A) 70 (grade B) 90 70 (grade A) 80 (grade B) Class 2 TI 2.5 I 70 (grade A) 70 (grade B) 90 70 (grade A) 80 (grade B) 3.9 WorkmanshiD. The resin as supplied shall remain translu

44、cent (see 3.2.1), be free of visible Contaminants, and contain no lumps or show other signs of partial gelation. 7 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4. QUALITY ASSURANCE PROVISIONS 4.1 ResDonsibilitv for inspection. Unless otherwise s

45、pecified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable

46、for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescr

47、ibed requirements. 4.1.1 ResDonsibilitv for compliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. absence of any inspection requirements in the specifi

48、cation shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of the manufacturing operations, is an acceptable practice to ascertain confor

49、mance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. The 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) First article inspection (see 4.3). (b) Quality conformance inspection (see 4.4). 4.3 First article inmection. First article