HG/T 3660-1999 Determination of melt viscosity of hot melt adhesives HG/T3660-1999 Standard download decompression password: www.bzxz.net

ECS83.180
Chemical Industry Standard of the People's Republic of China
HG/T3658~36601999
Adhesives, adhesive tapes and
Determination methods
19990616 Issued
2000-06-01 Implementation
State Petroleum and Chemical Industry Bureau Issued
No.: 3885-1999
HG/T3660-1999
This standard is equivalent to the Japanese industry standard 15K82-184 melt adhesive viscosity test method> This standard is formulated with the main difference from TIS K 6952: The meter used in this standard is not the same model. This standard is issued by the People's Republic of China and the former Ministry of Chemical Industry. The product is supervised by the National Adhesive Standardization Technical Committee. The unit that issued this standard is: Institute of Industrial Products of Haimeng School: The authors of this standard are: Lu Zhiyun, Suo Renfen. The National Adhesive Standardization Academic Committee is responsible for the interpretation of this standard. 13
Chemical Industry Standard of the People's Republic of China
Determination of Melt Viscosity of Hot Melt Adhesives
Tesilng Methods for Melt Viscosity otIot-melt Adheaives1 Standard
IG/T36601999
This standard specifies the determination of the melt viscosity of hot melt adhesives at 1U (: Other test temperatures may also be agreed upon as needed. This standard uses the Brkel type single-flow viscosity meter and the simple rotary viscosity meter to determine the melt viscosity of hot melt adhesives according to different test pressures:
The maximum viscosity specified in this standard can reach 2GCPa+52 Reference standards
The clauses included in the following standards are included as the clauses of this standard through reference in this standard. When the standard is published, the versions shown are all valid, and the existing standards are often revised. The parties involved in the standard flow will discuss and make pressure tests. The possibility of a new version of the standard. (B/T2918—Standard environment for sample conditioning and test age 3 Principles
The viscosity is determined by the stationary viscosity meter. The refining period of the hot refining adhesive is Newtonian. This principle is different from the corresponding shear response method.
Heat a certain amount of hot material under given conditions. When the temperature of the smelting adhesive reaches the test humidity, select the appropriate precision and speed, start the material meter, and record the viscosity value. 4 Instruments
4.1 Brukril type rotary viscosity meter (A method>; set sieve type rotary viscosity meter (I method). 4.2 Stainless steel or glass needs to be able to:
A method: use 2 20mL into 502mm steel glass container. Method, use a photosensitive or glued bottom container with an inner diameter of Amn and a separation of more than 35mm. 4.3 Oil: Turbulence fluctuation range = 3℃,
4.4 Temperature meter: The standard value is C.
5 Conditioning of the sample and the temperature and humidity of the test 5.1 The test group shall be carried out at 23±2 and relative humidity (0±5%) before the test according to [F2318] 2: The above condition adjustment can be agreed upon according to the need: 5.2 The test shall be carried out in the same temperature and temperature as 5. 6 Operation steps
6.1 Ada: Bruker (Trankiteld 6.1.1 Place the viscometer or glass sample into the oil. Control the oil density within [50°C]. Approved by the National Petroleum and Chemical Industry Weekly on June 16, 1999 and implemented on June 21, 2006. G/T3660-1999. 5.1.2 Place enough sample that has been heated to near the test value into the sample. Heat the sample until it melts. Insert the viscometer into the test rod to measure the viscosity. After 5°C and 3°C, select a suitable rotor and adjust the viscometer to a horizontal position. Insert the rotor into the center of the sample and make the liquid level reach the rotor mark. 6.4 After the viscosity reaches (18°C - 1°C), start the viscometer. 6.1.5 Select the speed to make the indication 15% of the moment, and measure the material density for 1a. After the pointer rotates 3in. for about 1s, record the pointer reading after the pointer rotates 3in. 6.1.6 Measure the test column three times, and use a new test column for each test. 6.2B Method:
6.2.1 Place the test column in the container attached to the viscometer, add oil, and control the viscosity at 1R℃. 6.2.2 After the sample is melted, use the viscometer to measure the temperature and wait until the temperature reaches 8±1). 6.2.3 According to the specific viscosity ratio of the test column, select the rotor and speed, adjust the viscosity to the horizontal position, and start the viscometer so that the indication value is within the range of %. Record the value of the viscosity pointer. 6.2.4 Measure each sample three times, and use a new sample before each test. 7. Calculate the viscosity by the following formula. Multiply the effective values ​​measured by the three test pieces by the rotation speed of the viscometer used, and then calculate the arithmetic average of the samples (the effective degree of the whole sample). R=K.5
Formula:
Viscosity.z.
The conversion coefficient derived from the rotation speed of the viscometer rotor; the indicated value read on the viscometer calibration.
In the A method, when the plate is 51-L (large rack) and the sample size is 3m., the indicated value should be corrected by the coefficient in the table: Table 1 Repair coefficient
1) When the volume is 2C>m, it is not allowed to rotate directly. A1 B Test report
The test report should include the following:
a) Sample source, type, manufacturing date, batch number, test period:
) Sample temperature, function and time of adjustment:
) Test force method (4 method)
d) Analyzer model, rotation, rotation, rotation;
) Test station (starting point and test temperature):
) Other contents of the report. www.bzxz.net
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