CN105699207A - Method for detecting heat resistance of hot melt adhesive for sealing - Google Patents
Method for detecting heat resistance of hot melt adhesive for sealing Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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Abstract
The invention relates to a method for detecting heat resistance of a hot melt adhesive for sealing, comprising the steps: 1), setting a heat resistance temperature standard for the hot melt adhesive to conform to actual highest transport and storage ambient temperature, and continuously increasing the temperature and holding the temperature for 2 h to simulate an actual ambient temperature rise process and to measure accurate heat resistance temperature; 2), setting each peeling and cutting direction and weight of a counterweight used in this direction to simulate stress conditions of the actual transport and storage process; 3), setting the size and shape of each cardboard and the position and usage of the hot melt adhesive to be sprayed, ensuring conformity to actual stress, and ensuring testing accuracy. The method for detecting the heat resistance of the hot melt adhesive is standardized herein, and it is possible to monitor quality performance of the hot melt adhesive more stably, ensure product sealing quality and solve the quality problems of product adhesive failure and loosening due to high temperature in summer.
Description
Technical field
The present invention relates to a kind of PUR, particularly relate to a kind of joint sealing PUR heat resistance detection method。
Background technology
Joint sealing PUR is typically all with thermoplastic polymer for base material, is easily generated creep and heat-resisting has certain limitation。In conventional use procedure, there is Bales Off phenomenon after transport storage a period of time in the poor PUR joint sealing finished product of thermostability, especially when ambient temperature is higher, and detection method that this is not stocked up preferably, as therefore high-volume carton Bales Off quality accident occurs, for product quality impact greatly。
The PUR heat resistanceheat resistant method for testing performance and the standard that originally use are to deposit at 45 DEG C 3 days, tear rear sealing glue position and do not break apart, and more than 70% can break paper。And this detection method of practical application can not accurately judge the heat resistance of PUR, because storing environment with actual shipment, joint sealing stressing conditions is not inconsistent, it is impossible to bonding dynamics carries out objective evaluation, and the detection time is partially long, poor accuracy。
Summary of the invention
It is an object of the invention to provide a kind of new joint sealing PUR heat resistance detection method, it is possible to more stably monitor the capability and performance of PUR, it is ensured that finished product joint sealing quality, solve to come unglued the quality problems of Bales Off because of high temperature stock's finished product summer。
The object of the invention to solve the technical problems realizes by the following technical solutions。According to a kind of joint sealing PUR heat resistance detection method that the present invention proposes, detect project and method step thereof including three below:
1) heat resisting temperature detection method is laterally peeled off:
Preparing 6 block length rectangular paperboards, one end, cardboard color printing face spraying hot-melt adhesive, with another block cardboard base stock face and the bonding of this cardboard one end, totally 3 pairs of the first cardboards；After placing 4 hours, being fixed on little testboard by every pair of first cardboard one end, the other end puts 200g iron block counterweight and unsettled；Putting in 40 DEG C of baking ovens and be stepped up temperature, every time constant temperature 2h after rising temperature, the temperature come off is this PUR and laterally peels off heat resisting temperature by observed and recorded second。
2) heat resisting temperature detection method is longitudinally peeled off:
Prepare 6 block length rectangular paperboards, one end, cardboard color printing face spraying hot-melt adhesive, be completely superposed stickup with another block cardboard base stock face and this cardboard, totally 3 pairs of cardboards；After placing 4 hours, being pulled open by two blocks of cardboards from the other end of cardboard viscose glue, middle doubling is the second cardboard, and one end S type hooks, and the 200g counterweight of other end buckle hooks；Putting in 40 DEG C of baking ovens and be stepped up temperature, every time constant temperature 2h after rising temperature, the temperature come off is this PUR and longitudinally peels off heat resisting temperature by observed and recorded second。
3) longitudinal shear heat resisting temperature detection method:
Preparing 6 block length rectangular paperboards, one end, cardboard color printing face spraying hot-melt adhesive, with another block cardboard base stock face and the bonding of this cardboard one end, totally 3 pairs of the 3rd cardboards；After placing 4 hours, one end S type hooks, and the 1000g counterweight of other end buckle hooks；Putting in 40 DEG C of baking ovens and be stepped up temperature, every time constant temperature 2h after rising temperature, the temperature come off is this PUR longitudinal shear heat resisting temperature by observed and recorded second。
Joint sealing PUR heat resistance detection method of the present invention, described detection environment is by improving constantly temperature constant temperature 2 hours。
Joint sealing PUR heat resistance detection method of the present invention, three described project testing requirement PUR heat resisting temperature standards are more than 60 DEG C。
Joint sealing PUR heat resistance detection method of the present invention, the described test simultaneously carrying out three groups of parallel sample, one group of temperature minimum in three groups of test record temperature is for test result。
Joint sealing PUR heat resistance detection method of the present invention, described step 1) in, specifically include:
Carton qualified for adhesivity is cut into the length × wide rectangle cardboard for 16cm × 5cm, cuts 6 pieces, wherein 3 pieces of cardboard (color printing one side) 2.5cm, 5cm place, one end one lines of each picture；
A length × wide strip hot melt glue for 5cm × 3mm sprayed quickly, uniformly by setting-out place glue rifle at above-mentioned cardboard (color printing one side) one end 2.5cm cut, one of base stock one side without setting-out mark cardboard is quickly clung PUR, the one end identifying cardboard during bonding without setting-out overlaps with there being setting-out mark 5cm place, cardboard one end, then unclamps after being pressed in rapidly viscose glue place 6 seconds with the iron block of about 1kg；
Repetitive operation 2 times, glues three pairs of the first cardboards and does Duplicate Samples。After above-mentioned three couple glued the first board sample room temperature is placed 4 hours, one end cardboard stationary fixture of every pair of first cardboard is fixed on little testboard, then puts 200g iron block counterweight (twining with rubber band) and unsettled at the other end 2cm place of every a pair first cardboards。
Joint sealing PUR heat resistance detection method of the present invention, described step 2) in, specifically include:
Carton qualified for adhesivity being cut into the length × wide rectangle cardboard for 10cm × 5cm, cuts 6 pieces, 3 pieces of cardboards (color printing one side) are standby with 2.5cm, 5cm place, one end one line of each picture wherein；
A length × wide strip hot melt glue for 5cm × 3mm sprayed quickly, uniformly by setting-out place glue rifle at above-mentioned cardboard (color printing one side) one end 2.5cm cut, one of base stock one side without setting-out mark cardboard is quickly clung PUR, during bonding, two blocks of cardboards are completely superposed, then unclamp after being pressed in rapidly viscose glue place 6 seconds with the iron block of about 1kg。
Repeat aforesaid operations, glue three pairs of cardboards and do Duplicate Samples。After three pairs of cardboard room temperatures glued shelve 4 hours, from the other end of cardboard viscose glue, the cardboard that two pieces are completely superposed slowly is pulled open, it is the second cardboard from the 5cm setting-out place doubling of one end, cardboard viscose glue place, an aperture is made a call in the second cardboard both sides of the edge (about 1cm place) are each after doubling, one end S type hooks, and the 200g counterweight of other end buckle hooks。
Joint sealing PUR heat resistance detection method of the present invention, described step 3) in, specifically include:
Carton qualified for adhesivity being cut into the length × wide rectangle cardboard for 10cm × 5cm, cuts 6 pieces, 3 pieces of cardboards (color printing one side) are standby with 2.5cm, 5cm place, one end one line of each picture wherein。
A length × wide strip hot melt glue for 5cm × 3mm sprayed quickly, uniformly by setting-out place glue rifle at above-mentioned cardboard (color printing one side) one end 2.5cm cut, one of base stock one side without setting-out mark cardboard is quickly clung PUR, identify one end of cardboard without setting-out during bonding to overlap with there being setting-out mark 5cm place, cardboard one end, then unclamp after being pressed in rapidly viscose glue place 6 seconds with above-mentioned iron block。
Sealing three pairs of the 3rd cardboards by aforesaid operations, at every pair of the 3rd each aperture of making a call in cardboard edges at two ends (about 1cm) place, one end S type hooks, and the 1000g counterweight of other end buckle hooks。
By technique scheme, the present invention has the advantage that and provides the benefit that:
1) the specification of the present invention detection method of PUR heat resistance, it is possible to more stably monitor the capability and performance of PUR, it is ensured that finished product joint sealing quality, solves to come unglued the quality problems of Bales Off because of high temperature stock's finished product summer。
2) the method accuracy of the present invention is high, reproducible, easy and simple to handle quickly。
Accompanying drawing explanation
The transverse direction that Fig. 1 is detection method peels off heat resisting temperature detection diagram。
The transverse direction that Fig. 2 is detection method peels off heat resisting temperature detection diagram。
The transverse direction that Fig. 3 is detection method peels off heat resisting temperature detection diagram。
1: cardboard stationary fixture, 2: the first cardboards, 3: the first gluing places of coincidence,
4:200 gram of iron block counterweight, 5: the second cardboards, 6: the second gluing places of coincidence,
7:200 gram of counterweight, 8: the three cardboards, the viscous place of 9: the triple rubber alloies,
10:1000 gram of counterweight。
Detailed description of the invention
Below by way of concrete preferred embodiment, the present invention is described in further detail, but the present invention is not limited in below example。
The joint sealing of present invention PUR heat resistance detection method, comprises the following steps:
1) setting PUR heat resisting temperature standard, transport storage ambient temperature the highest with reality is consistent, and by improving constantly temperature constant temperature 2 hours, simulates actual environment temperature elevation process, it is possible to measure heat resisting temperature accurately；
2) set each and peel off shear direction and counterweight weight used, simulate actual shipment storing process stressing conditions；
3) set position and the consumption of each cardboard size shape and spraying hot-melt adhesive, it is ensured that be consistent with actual loading, ensure the accuracy of test simultaneously。
The joint sealing of present invention PUR heat resistance detection method, detects project including three below:
1, heat resisting temperature detection method is laterally peeled off；
2, heat resisting temperature detection method is longitudinally peeled off；
3, longitudinal shear heat resisting temperature detection method。
Carrying out the test of three groups of parallel sample, one group of temperature minimum in three groups of test record temperature is for test result simultaneously。
The required equipment of detection
200g counterweight, 1000g counterweight, special fixture, thermostatic drying chamber, carton that adhesivity is qualified (identical with the carton that detection bond properties uses), length × wide × height are 9cm × 7cm × 2cm, weigh about the iron block of 1kg, glue rifle (without glue rifle, available metal or ceramic vessel fill appropriate micelle and add heat fusing in 170 ± 10 DEG C of baking ovens), S type hook。
Laterally stripping heat resisting temperature detection mode therein, specifically can be expressed as follows:
Carton qualified for adhesivity being cut into the length × wide rectangle cardboard for 16cm × 5cm, cuts 6 pieces, 3 pieces of cardboard (color printing one side) 2.5cm, 5cm place, one end one lines of each picture are standby wherein。
Appropriate PUR to be measured is added in glue rifle (first by clean for original PUR discharge in glue rifle before interpolation), close the lid adding mouth place, the heating for dissolving that switches on power PUR, treat that PUR is completely melt (about 20 minutes)。
After PUR is completely melt, a length × wide strip hot melt glue for 5cm × 3mm (as excellent in glue-free rifle useable glass or little ferrum spoon coating) sprayed quickly, uniformly by setting-out place glue rifle at above-mentioned cardboard (color printing one side) one end 2.5cm cut, one of base stock one side without setting-out mark cardboard is quickly clung PUR, the one end identifying cardboard when noting bonding without setting-out overlaps with there being setting-out mark 5cm place, cardboard one end, unclamp after being pressed in rapidly viscose glue place 6 seconds with the iron block of about 1kg again, being the first cardboard 2, its bonding place is the first gluing place 3 of coincidence。
Repetitive operation 2 times, glues three pairs of the first cardboards 2 and does Duplicate Samples。
After the above-mentioned three pairs of room temperatures glued are placed 4 hours, one end cardboard stationary fixture 1 of every pair of first cardboard 2 is fixed on little testboard, 200g iron block counterweight 4 (tightly wrapping with rubber band) is put and unsettled again, as shown in Figure 1 at the other end 2cm place of every a pair first cardboards 2。Finally little testboard and whole fixture are put in the baking oven that temperature has risen to 40 DEG C together。
Constant temperature is observed across baking oven windowpane after shelving 2hr, and whether three pairs of the first cardboards 2 come off。If wherein two pairs or all come off, it was shown that this PUR cannot pass through this temperature, recording this temperature and be the transverse direction of this PUR and peel off heat resisting temperature。If not coming off or one pair of which comes off, then temperature is raised 3 DEG C, observe again after constant temperature 2hr。The rest may be inferred, until second pair come off, writes down second pair of temperature come off and is this PUR and laterally peels off heat resisting temperature。
Longitudinally stripping heat resisting temperature detection mode therein, specifically can be expressed as follows:
Carton qualified for adhesivity being cut into the length × wide rectangle cardboard for 10cm × 5cm, cuts 6 pieces, 3 pieces of cardboards (color printing one side) are standby with 2.5cm, 5cm place, one end one line of each picture wherein。
After the PUR in glue rifle is completely dissolved, a length × wide strip hot melt glue for 5cm × 3mm (as excellent in glue-free rifle useable glass or little ferrum spoon coating) sprayed quickly, uniformly by setting-out place glue rifle at above-mentioned cardboard (color printing one side) one end 2.5cm cut, one of base stock one side without setting-out mark cardboard is quickly clung PUR, when noting bonding, two blocks of cardboards are completely superposed, then unclamp after being pressed in rapidly viscose glue place 6 seconds with the iron block of about 1kg。Repeat aforesaid operations, glue three pairs of cardboards and do Duplicate Samples。The cardboard glued:
After three pairs of cardboard room temperatures glued shelve 4 hours, from the other end of cardboard viscose glue, the cardboard that two pieces are completely superposed slowly is pulled open, it is the second cardboard 5 from the 5cm setting-out place doubling of one end, cardboard viscose glue place, its bonding place is the second gluing place 6 of coincidence, make a call to an aperture the second cardboard 5 both sides of the edge (about 1cm place) are each, one end S type hooks, and the 200g counterweight 7 of other end buckle hooks, as shown in Figure 2。Being put in the baking oven arranging 40 DEG C, constant temperature is observed across baking oven windowpane after shelving 2hr, and whether three pairs of the second cardboards 5 come off。If wherein two pairs or all come off, it was shown that this PUR cannot pass through this temperature, recording this temperature and be the transverse direction of this PUR and peel off heat resisting temperature。If not coming off or one pair of which comes off, then temperature is raised 3 DEG C, observe again after constant temperature 2hr。The rest may be inferred, until second pair come off, writes down second pair of temperature come off and is this PUR and laterally peels off heat resisting temperature。
Longitudinal shear heat resisting temperature detection mode therein, specifically can be expressed as follows:
Carton qualified for adhesivity being cut into the length × wide rectangle cardboard for 10cm × 5cm, cuts 6 pieces, 3 pieces of cardboards (color printing one side) are standby with 2.5cm, 5cm place, one end one line of each picture wherein。
Appropriate PUR to be measured is added in glue rifle (first by clean for original PUR discharge in glue rifle before interpolation), close the lid adding mouth place, the heating for dissolving that switches on power PUR, treat that PUR is completely dissolved (about 20 minutes)。
After PUR is completely dissolved, a length × wide strip hot melt glue for 5cm × 3mm (as excellent in glue-free rifle useable glass or little ferrum spoon coating) sprayed quickly, uniformly by setting-out place glue rifle at above-mentioned cardboard (color printing one side) one end 2.5cm cut, one of base stock one side without setting-out mark cardboard is quickly clung PUR, to overlap with there being setting-out mark 5cm place, cardboard one end without one end of setting-out mark cardboard when noting bonding, unclamping after being pressed in rapidly viscose glue place 6 seconds with above-mentioned iron block again and be the 3rd cardboard 8, its bonding place is the viscous places 9 of triple rubber alloies。
Sealing three pairs of the 3rd cardboards 8 by aforesaid operations, at every pair of the 3rd each aperture of making a call in cardboard 8 edges at two ends (about 1cm) place, one end S type hooks, and the 1000g counterweight 10 of other end buckle hooks, as shown in Figure 3。Being put in the baking oven arranging 40 DEG C, constant temperature is observed across baking oven windowpane after shelving 2hr, and whether three pairs of the 3rd cardboards 8 come off。If wherein two pairs or all come off, it was shown that this PUR cannot pass through this temperature, records this temperature and is the longitudinal shear heat resisting temperature of this PUR。If not coming off or one pair of which comes off, then temperature is raised 3 DEG C, observe again after constant temperature 2hr。The rest may be inferred, until second pair comes off, writes down second pair of temperature come off and is this PUR longitudinal shear heat resisting temperature。
The above, it it is only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, therefore it is every without departing from technical solution of the present invention content, according to any simple modification, equivalent variations and modification that above example is made by the technical spirit of the present invention, all still fall within the scope of technical solution of the present invention。
Claims (7)
1. a joint sealing PUR heat resistance detection method, it is characterised in that it comprises the following steps:
1) heat resisting temperature detection is laterally peeled off:
1a) preparing 6 block length rectangular paperboards, one end, cardboard color printing face spraying hot-melt adhesive, with another block cardboard base stock face and the bonding of this cardboard one end, totally three pairs of the first cardboards；
After 1b) placing 4 hours, being fixed on little testboard by every pair of cardboard one end cardboard stationary fixture, the other end puts 200g iron block counterweight and unsettled；
1c) putting in 40 DEG C of baking ovens and be stepped up temperature, every time constant temperature one end time after rising temperature, the temperature that the first cardboard comes off is this PUR and laterally peels off heat resisting temperature by observed and recorded second；
2) heat resisting temperature detection is longitudinally peeled off:
2a) prepare 6 block length rectangular paperboards, one end, cardboard color printing face spraying hot-melt adhesive, be completely superposed stickup with another block cardboard base stock face and this cardboard, totally 3 pairs of cardboards；
After 2b) placing 4 hours, being pulled open by two blocks of cardboards from the other end of cardboard viscose glue, middle doubling, one end S type hooks, and the 200g counterweight of other end buckle hooks；
2c) putting in 40 DEG C of baking ovens and be stepped up temperature, every time constant temperature one end time after rising temperature, the temperature that the second cardboard comes off is this PUR and longitudinally peels off heat resisting temperature by observed and recorded second；
3) longitudinal shear heat resisting temperature detection:
3a) preparing 6 block length rectangular paperboards, one end, cardboard color printing face spraying hot-melt adhesive, with another block cardboard base stock face and the bonding of this cardboard one end, totally three pairs of the 3rd cardboards；
After 3b) placing 4 hours, one end S type hooks, and the 1000g counterweight of other end buckle hooks；
3c) putting in 40 DEG C of baking ovens and be stepped up temperature, every time constant temperature one end time after rising temperature, the temperature that the 3rd cardboard comes off is this PUR longitudinal shear heat resisting temperature by observed and recorded second；
Carrying out the test of three groups of parallel sample, one group of temperature minimum in three groups of test record temperature, for test result, compares by measurement result and standard value, can this PUR heat resistance meet the requirements more than or equal to standard value simultaneously。
2. joint sealing PUR heat resistance detection method according to claim 1, it is characterised in that: described detection environment is by improving constantly temperature constant temperature 2 hours。
3. joint sealing PUR heat resistance detection method according to claim 1, it is characterised in that: three described project testing requirement PUR heat resisting temperature standards are more than 60 DEG C。
4. joint sealing PUR heat resistance detection method according to claim 1, it is characterized in that: the described test simultaneously carrying out three groups of parallel sample, one group of temperature minimum in three groups of test record temperature is for test result, compare by measurement result and standard value, can this PUR heat resistance meet the requirements more than or equal to standard value。
5. joint sealing PUR heat resistance detection method according to claim 1, it is characterized in that: step 1) in, carton qualified for adhesivity is cut into the length × wide rectangle cardboard for 16cm × 5cm, cut 6 pieces, wherein 3 pieces of cardboard (color printing one side) 2.5cm, 5cm place, one end one lines of each picture；A length × wide strip hot melt glue for 5cm × 3mm sprayed quickly, uniformly by setting-out place glue rifle at above-mentioned cardboard (color printing one side) one end 2.5cm cut, one of base stock one side without setting-out mark cardboard is quickly clung PUR, the one end identifying cardboard during bonding without setting-out overlaps with there being setting-out mark 5cm place, cardboard one end, then unclamps after being pressed in rapidly viscose glue place 6 seconds with the iron block of about 1kg；
Repetitive operation 2 times, glues three pairs of the first cardboards and does Duplicate Samples；
After above-mentioned the first board sample room temperature glued is placed 4 hours, one end cardboard stationary fixture of every pair of first cardboard is fixed on little testboard, then puts 200g iron block counterweight (twining with rubber band) and unsettled at the other end 2cm place of every a pair cardboard。
6. joint sealing PUR heat resistance detection method according to claim 1, it is characterized in that: step 2) in, carton qualified for adhesivity is cut into the length × wide rectangle cardboard for 10cm × 5cm, cutting 6 pieces, 3 pieces of cardboards (color printing one side) are standby with 2.5cm, 5cm place, one end one line of each picture wherein。
A length × wide strip hot melt glue for 5cm × 3mm sprayed quickly, uniformly by setting-out place glue rifle at above-mentioned cardboard (color printing one side) one end 2.5cm cut, one of base stock one side without setting-out mark cardboard is quickly clung PUR, during bonding, two blocks of cardboards are completely superposed, then unclamp after being pressed in rapidly viscose glue place 6 seconds with the iron block of about 1kg。
Repeat aforesaid operations, glue three pairs of cardboards and do Duplicate Samples。
After three pairs of cardboard room temperatures glued shelve 4 hours, from the other end of cardboard viscose glue, the cardboard that two pieces are completely superposed slowly is pulled open, it is the second cardboard from the 5cm setting-out place doubling of one end, cardboard viscose glue place, make a call to an aperture the second cardboard both sides of the edge (about 1cm place) are each, one end S type hooks, and the 200g counterweight of other end buckle hooks。
7. joint sealing PUR heat resistance detection method according to claim 1, it is characterized in that: step 3) in, carton qualified for adhesivity is cut into the length × wide rectangle cardboard for 10cm × 5cm, cutting 6 pieces, 3 pieces of cardboards (color printing one side) are standby with 2.5cm, 5cm place, one end one line of each picture wherein；
A length × wide strip hot melt glue for 5cm × 3mm sprayed quickly, uniformly by setting-out place glue rifle at above-mentioned cardboard (color printing one side) one end 2.5cm cut, one of base stock one side without setting-out mark cardboard is quickly clung PUR, identify one end of cardboard without setting-out during bonding to overlap with there being setting-out mark 5cm place, cardboard one end, then unclamp after being pressed in rapidly viscose glue place 6 seconds with above-mentioned iron block；
Sealing three pairs of the 3rd cardboards by aforesaid operations, at every pair of the 3rd each aperture of making a call in cardboard edges at two ends (about 1cm) place, one end S type hooks, and the 1000g counterweight of other end buckle hooks。
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106596396A (en) * | 2016-12-09 | 2017-04-26 | 张家港市利奇塑料有限公司 | Low temperature testing method for glue properties of self adhesive floor |
| CN107831066A (en) * | 2017-10-27 | 2018-03-23 | 燕京啤酒(桂林漓泉)股份有限公司 | One kind judges the whether satisfactory method of corrugated case PUR joint sealing firmness |
| CN108362639A (en) * | 2018-05-22 | 2018-08-03 | 浙江中特化工有限公司 | A kind of test device and its test method of test hot melt adhesive open hour |
| CN108871894A (en) * | 2018-06-29 | 2018-11-23 | 厦门三维丝环保股份有限公司 | It makes filter bag pin hole and blocks the method for using sealant performance detection sample |
| CN109612853A (en) * | 2018-11-26 | 2019-04-12 | 深圳市华星光电技术有限公司 | Compression test device and its test method |
| CN110726611A (en) * | 2019-10-29 | 2020-01-24 | 中国工程物理研究院化工材料研究所 | Stress concentration test device and test method for brittle material perforated plate |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596396A (en) * | 2016-12-09 | 2017-04-26 | 张家港市利奇塑料有限公司 | Low temperature testing method for glue properties of self adhesive floor |
| CN106596396B (en) * | 2016-12-09 | 2019-06-07 | 张家港市利奇塑料有限公司 | A kind of low-temperature test method of glue performance in self-adhesion adhesive floor |
| CN107831066A (en) * | 2017-10-27 | 2018-03-23 | 燕京啤酒(桂林漓泉)股份有限公司 | One kind judges the whether satisfactory method of corrugated case PUR joint sealing firmness |
| CN107831066B (en) * | 2017-10-27 | 2021-01-12 | 燕京啤酒(桂林漓泉)股份有限公司 | Method for judging whether sealing firmness of hot melt adhesive of corrugated case meets requirements |
| CN108362639A (en) * | 2018-05-22 | 2018-08-03 | 浙江中特化工有限公司 | A kind of test device and its test method of test hot melt adhesive open hour |
| CN108871894A (en) * | 2018-06-29 | 2018-11-23 | 厦门三维丝环保股份有限公司 | It makes filter bag pin hole and blocks the method for using sealant performance detection sample |
| CN109612853A (en) * | 2018-11-26 | 2019-04-12 | 深圳市华星光电技术有限公司 | Compression test device and its test method |
| CN110726611A (en) * | 2019-10-29 | 2020-01-24 | 中国工程物理研究院化工材料研究所 | Stress concentration test device and test method for brittle material perforated plate |
| CN114152564A (en) * | 2021-12-14 | 2022-03-08 | 芜湖徽氏新材料科技有限公司 | Inspection equipment containing hot melt adhesive tape and adhesive tape structure thereof |
| CN114152564B (en) * | 2021-12-14 | 2024-04-09 | 芜湖徽氏新材料科技有限公司 | Inspection equipment for hot melt adhesive tape and tape structure thereof |
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