1、MIL-A-1253 80 W 9999906 OLL0098 b = / -=. / , MIL-A- 81253 (WP) 1 March 1965 MATERIAL SPECIFICATION ADHESIVE, MODIFIED BPOXY RESIN WITH POLYAMINE ClJRSNG AGENT This specification has been approved by the Bureau of Naval Weapons, Department of the Navy i. SCOPE 1.1 Scope. This specification covers on
2、e kind of low viscosity, modified epoxy resin. 2, APPLICABLE DOCUMENTS 2.1 The following documents, of the issue in effect on date of invi- tation for bids or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS ! Military MIL-P-116 Preservation, Met
3、hods of STANDARDS Military MIL-STD-129 Marking for Shipment and Storage (When requesting any of the above documents, give the title and complete designation of the item shown above. Copies of this specification and other unclassified specifications, standards, and publications required by con- tract
4、ors in connection with specific procurement functions may be obtained from the Commanding Officer, Navy Supply Depot (CDS), .5801 Tabor Avenue, Philadelphia, Pennsylvania, 19120.) 2.2 Other pUbliCatiOnS. The following documents form a part of this specification to the extent specified herein. Unless
5、 otherwise indicated, the issue in effect on date of invitation for bids or request for proposal, shall apply. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-l253 80 m 777770b 0220079 m PUBLICATIONS American Societv for Testing. and Materials
6、ASTM D 1078-58 ASTM D 1002-53T Method Test for Distillation Range of Lacquer Solvents and Diluents Method of Test for Strength Properties of Adhesives in Shear by Tension Load- ing (Metal to Metal) Method of Test for Specific Gravity of Industrial Aromatic Hydrocarbons and Related Materials Method o
7、f Test for Kinematic Viscosity Method of Test for Epoxy Content of Epoxy Resins Method of Test for Color of Transparent Liquids (Gardner Color Scale) Method of Test for Density of Paint, Varnish, Lacquer, and Related Products (Application for copies should be addressed to the American Society for Te
8、sting and Materials, 1916 Race Street, Philadelphia, Pennsylvania, 19103,) ASTM D 891-59 ASTM D 445-61 ASTM D 1652-62 ASTM D 1544-58 ASTM D 1475-60 30 REQUIREMENTS I 3.1 Preproduction samples. Unless otherwise specified in the contract or order, preproduction samples of the adhesive shall be manufac
9、tured using -the methods and procedures proposed for the production. The sample will be tested as specified . in Section 4 herein and is for the purpose of determining that, prior to starting production, the contractors production methods are capable of yielding items that comply with the technical
10、requirements of the contract. After satisfactorily passing all the preproduction tests specified herein, no changes in raw materials and processing of materials for production shall be made without prior written approval of the procuring activity. 3.2 Data requirements. No data is required by this s
11、pecification or by applicable documents referenced in Section 2 unless specified in the contract or order (see 6.2). 2 w I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-81253 80 9994906 OLL0100 O W 3.3 Material. The material shall be made fro
12、m a low-viscosity modified epoxy resin and an aliphatic polyamine such as triethylenetetramine. 3.4 Resin physical and chemical properties. 3.4.1 Viscosity. The resin viscosity shall be no less than 2100 cen- tipoises (cps) nor greater than 3600 cps when tested at 25 f 2 degrees Centigrade (C). 3.4.
13、2 Epoxy value. The resin epoxy value shall be no less than 0,40 equivalents per 100 grams (gm) nor more than 0.43 equivalents per 100 gm. 3.4,3 Color. The resin color value shall be a maximum of three on the Gardner Color Scale, 3.4.4 Weight per gallon. The resin wieght per gallon value shall be no
14、less than 9.3 pounds per gallon (lbs/gal) nor more than 9,6 lbs/gal, 3,5 Triethylenetetramine properties 3.5.1 Boiling range. The boiling range at 760 millimeters of mercury shall be no less than 260 nor more than 290 degrees C. 3.5.2 Specific gravity. The specific gravity shall be no less than 0,97
15、6 nor more than 0.982 at 25/25 degrees C. 3,6 Tensile shear. The tensile shear value of the cured resin shall be a minimum individual value of 3250 pounds per square inch, 3.7 Workmanship. The material shall be uniform in .quality and shall be free from impurities and other defects that could advers
16、ely affect its use, 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified, the supplier may uti
17、lize his own facilities or any commercial laboratory acceptable to the Government. The Government reserves the right to perform any of the inspections set forth in the specification where 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- _ . _ MIL-A
18、-BI253 0 9799906 OIIIIOIIOII 2 W , MIL-A-81253 (WP) such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.2 Classification of inspections. Inspection of the adhesive shall be classified as follows: a. Preproduction inspection (see 4.4) b. Quality
19、 conformance inspection (see 4.5) 4.3 Sampling 4.3.1 Preproduction samples, A preproduction sample of sufficient quantity of the resin and curing agent manufactured in accordance with 3.1 shall be subjected to the preproducgisn3ests detailed in 4.4 at an activity designated by the procuring activity
20、. Further production of the adhesive by the supplier, prior to the approval of the preproduction sample, shall be at the suppliers risk. 4.3.2 Quality conformance inspection sampling. Unless otherwise specified, sufficient material shall be taken from each lot to perform the tests as specified in 4.
21、5. 4.3.3 inspection lot. An inspection lot of resin and curing agent shall consist of all the material presented for acceptance at one time, and pro- duced in a single manufacturing run under homogeneous conditions of manufacture. 4.4 Preproduction inspection. The preproduction sample shall satis- f
22、actorily pass the quality conformance inspections detailed in 4.5. 4.5 Quality conformance inspection 4.5.1 Visual examination. Each container in a lot shall be visually examined to determine compliance with 3.7 and Section 5. 4.5.2 Viscosity test. The viscosity of the modified epoxy resin shall be
23、determined in accordance with ASTM D 445-61. 4,5.3 Epoxy value test. The epoxy value of the modified epoxy resin shall be determined in accordance with ASTM D 1652-62. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-81253 0 777770b OZLO102 4 W
24、MIL-A-81253 (WP) 4.5.4 Color test. The color value of the modified epoxy resin shall be determined in accordance with ASTM D 1544-58. 4.5.5 Weight per gallon test, The weight per gallon of the modified epoxy resin shall be determined in accordance with ASTM D 1475-60. 4.5.6 Boiling range test. The b
25、oiling range shall be determined in accordance with ASTM D 1078-58 with the following exceptions: a. All-glass condenser substituted for metal condenser b. Thermometer 2C is used; temperature to include -5 degrees C to 300 degrees C; 76 millimeters immersion; 1 degree C graduations. Platinum resista
26、nce thermometer may be used as alternate. 4,5,7 Specific gravity test. The specific gravity shall be determined in accordance with ASTM D 891-59. 4,5.8 Tensile shear strength test. The specimens for the tensile shear . test shall be made by mixing 10 parts by weight of triethylenetetramine with 100
27、parts by weight of the modified epoxy resin and cured for no less than 2 hours nor more than 8 hours at 100 f 5 degrees C. The tensile shear value of the cured adhesive shall be determined in accordance with ASTM D 1002-53T, using 1-inch steel strips with l/2-inch overlap. i 4.6 Acceptance criteria
28、4.6,l Preproduction. Failure of any sample to meet any of the require- ments of this specification shall be cause for rejection ofthe lot. 4,6.2 Quality conformance. Failure of any sample to meet any require- ment of this specification shall be cause for rejection of the lot. 5. PREPARATION FOR DELI
29、VERY 5.1 Preservation, packaging and packing. Unless otherwise specified by the procuring activity, the preservation, packaging and packing shall be in accordance with MIL-P-116, method III. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- _ NIL-A-81
30、253 80 W 7977906 01L0103 6-5 5.2 Marking. Each container shall be marked in accordance with MIL-STD-129.- Marking shall includs but not be limited to, the foliowing information: a. Manufacturers name and location b. Material trade name c. Net weight or volume d. Lot number, batch number and date of
31、manufacture e. Shelf life or storage limitations f. Number and revision letter of this specification 6. NOTES 6.1. Intended use. The material purchased in accordance with this specification is intended to be used as an adhesive in rocket motor systems. 6.2 Ordering data. Procurement documents should
32、 specify, but not be limited to, the following information: a. Title, number and revision letter of this specification b. Minimum lot size, if applicable c. Whether preproduction sample is required d. Piace of delivery e. Size of container f. Request for test data ,- e Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
