CN107540977A - A kind of anti-precipitation property refrigerator-freezer PVC sealing strip composition and preparation method thereof - Google Patents
A kind of anti-precipitation property refrigerator-freezer PVC sealing strip composition and preparation method thereof Download PDFInfo
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- CN107540977A CN107540977A CN201610485012.7A CN201610485012A CN107540977A CN 107540977 A CN107540977 A CN 107540977A CN 201610485012 A CN201610485012 A CN 201610485012A CN 107540977 A CN107540977 A CN 107540977A
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Abstract
A kind of anti-precipitation property refrigerator-freezer PVC sealing strip composition and preparation method thereof, belong to processing and the applied technical field of high polymer material.It is made up of the raw material of following parts by weight：100 parts of polyvinyl chloride resin, 77 ~ 89 parts of plasticizer, 4 ~ 5 parts of calcium zinc stabilizer, 0.2 ~ 0.3 part of antioxidant, 18 ~ 20 parts of filler, 0.3 ~ 0.5 part of lubricant；Plasticizer is the compound of polyester plasticizer and hydrogenated methyl rosinate.The anti-precipitation refrigerator-freezer of the present invention has higher anti-precipitation performance with PVC sealing strip composition, and disclosure satisfy that 80 ms/min of high speed extrusion production, and preparation method of the invention is simple and easy to do, has higher production efficiency.
Description
Technical field
The invention belongs to the processing of high polymer material and applied technical field, and in particular to a kind of anti-precipitation property refrigerator-freezer is used poly-
Vinyl chloride sealing bar composition and preparation method thereof.
Background technology
Polyvinyl chloride is current output in domestic maximum, a kind of cheapest plastic material of price, due to pvc material
It can be used to boardy product, add after plasticizer and also can be used for flexible article, its function admirable is widely used；Therefore in refrigerator, ice
Cabinet, insulating box, the sealing material field of house door and window, currently still based on soft PVC materials.However, at present with polychlorostyrene
Ethene still has many defects in use for the sealing strip of base material, and the sealing strip resilience such as made is poor, material lower temperature resistance
Can be insufficient, the plasticizer used in modified PVC easily separates out.
Solve the problems, such as the hot fields that the plasticizer in PVC formulas is always the research of PVC sealing strips, Chinese patent
CN104829887A discloses a kind of PVC sealing strip materials and preparation method thereof, and the patent is blended using PVC and nitrile rubber,
Add haloflex wax plasticizer and make sealing strip.Chinese patent CN103739987A discloses a kind of PVC soft sealing strips
The formula and preparation method of section bar, the patent is from DOP, DOA as formula plasticizer.Chinese patent CN104650488A is disclosed
A kind of antibiotic property container sealing strip, the primary plasticizer used is phthalate.Chinese patent CN103739965A
A kind of refrigerator door sealing strip patent is disclosed, the patent is from vinylacetate as plasticizer.Chinese patent
CN103554712A discloses a kind of low temperature resistant PVC sealings bar composition, but does not refer to the plasticizer type that PVC is used.China
Patent CN103923412A discloses a kind of formula of PVC sealing strips and its using patent, uses the degree of polymerization as 1000 ~ 1500 types
Corvic, use diisononyl adipate plasticizer, trioctyl trimellitate (TOTM) plasticizer, Plasticizer Epoxidized Soybean Oil
With the environment-friendlyplasticizer plasticizer of at least one of polyester plasticizer composition.Found by above patent analysis, PVC refrigerators are sealed
The documents and materials of bar formula moderate resistance plasticizer performance study are few.
In PVC sealing strip production industries, the conventional process of existing evaluation sealing strip plasticizer performance, the party
Method is：Corresponding product gasket is taken, the sample of 100mm length is uniformly cut from gasket, band magnetic stripe is adsorbed in PCM sheet materials naturally
（A kind of steel plate with organic coating）Or spraying sheet material front.Ready test sample is positioned in 70 DEG C of baking oven, 48h
Take out and stood to room temperature state afterwards, uniformly left behind using tensiometer, record pulling force peak value.Consider data deviation, during test at least
5 pieces of door seal samples are taken, PCM plate different zones is positioned over, is judged according to wherein maximum.Sealing strip is adsorbed in PCM sheet materials
Cohesive force reflected that after 70 DEG C × 48h agings plasticizer is in PVC sealing strips specific dimensions and specific contact environment indirectly
Under anti-precipitation ability.Test result requires that the bonding force value for pulling open sample and PCM sheet materials of anti-precipitation type PVC sealing strips is less than
12N.This hair applicant has found in bright experiment：Conventional plasticizers such as DOP, DOTP, TOTM, the cohesive force of even polyester plasticizer
Value is both greater than 12N.Applicant is in experiments it is found that this kind of height of ethylene-vinyl acetate copolymer using high melting means, high VA contents
Molecule plasticizer, although the cohesive force of sealing strip and PCM sheet materials can accomplish very little, these polymeric plasticizers are all grains
Material, it is bad with the uniformity of polyvinyl chloride resin powder blending, cause sealing strip performance to be not sufficiently stable, and these pellets are in twin-screw
Dead feed screw is often suppressed in extruding pelletization；Furthermore these polymeric plasticizers usage amount in formula is big, relative market price
It is higher, also it is not easy very much buying and arrives, limits application of the polymeric plasticizer in PVC sealing strips.
The content of the invention
The technical problem to be solved in the present invention is：For the above-mentioned deficiency of prior art, there is provided a kind of anti-precipitation property refrigerator-freezer
With PVC sealing strip composition and preparation method thereof, anti-precipitation property refrigerator-freezer PVC sealing strip composition have compared with
High anti-precipitation performance, and 80 ms/min of high speed extrusion production is disclosure satisfy that, maintain higher production efficiency.
The present invention is achieved by the following technical solutions：The PVC sealing strip composition, it is characterised in that by with
The raw material composition of lower parts by weight：100 parts of polyvinyl chloride resin, 77 ~ 89 parts of plasticizer, 4 ~ 5 parts of calcium zinc stabilizer, antioxidant 0.2 ~ 0.3
Part, 18 ~ 20 parts of filler, 0.3 ~ 0.5 part of lubricant；Plasticizer is the compound of polyester plasticizer and hydrogenated methyl rosinate.
The anti-precipitation property refrigerator-freezer PVC sealing strip composition, it is characterised in that by the raw material group of following parts by weight
Into：100 parts of polyvinyl chloride resin, 87 ~ 88 parts of plasticizer, 4.5 parts of calcium zinc stabilizer, 0.2 ~ 0.25 part of antioxidant, 18 ~ 19 parts of filler, profit
0.4 part of lubrication prescription.
Described polyester plasticizer and hydrogenated methyl rosinate are by weight 44 ~ 57：31 ~ 44 are used in combination.
Described polyester plasticizer is adipate polyester type plasticizer, adipate polyester type plasticizer mean molecule quantity 1800
~ 2200, viscosity is 2.8 ~ 3.2Pa.s.
The degree of polymerization of described polyvinyl chloride resin is 1600 ~ 1800.
Described calcium zinc stabilizer is calcium zinc stabilizer 9700.
Described antioxidant is antioxidant DLTDP.
Described filler is gas-phase silica, and gas-phase silica is nanoscale, the specific surface area of gas-phase silica for 400 ~
450 m2/g。
Described lubricant is the mixture that OPE and Tissuemat E press any mass ratio.
A kind of preparation method of above-described anti-precipitation property refrigerator-freezer PVC sealing strip composition, its feature exist
In comprising the following steps：
1）Polyvinyl chloride resin, plasticizer and calcium zinc stabilizer are weighed by weight, are together put into high-speed mixer 100 DEG C ~ 110 DEG C
Lower stirring, gas-phase silica, lubricant and antioxidant are added after being well mixed, continues to stir at 100 DEG C ~ 110 DEG C, is well mixed
After be discharged in low-speed mixer and stir, discharged when mixed material is cooled to 40 ~ 45 DEG C；
Mixed material is added into extrusion in parallel double-screw extruder, is granulated, 130 ~ 150 DEG C of extrusion temperature, is through pelletizing, cooling
Obtain composition.
It is described as follows for the present invention：
The present invention refrigerator-freezer PVC sealing strip composition, use the degree of polymerization for 1600 ~ 1800 high polymerization degree resin,
Without using polyvinyl chloride resin of the typical polymerization degree 1000 ~ 1300, be to ensure PVC that there is preferable plasticizer carrying capacity and
It is not easy to separate out.The type resin of high DP PVC 2500 has more preferable anti-plasticizer in the present invention, but studies hair
It is existing, because PVC2500 type resin viscosities are bigger than normal, in the common types of Φ 65, draw ratio 30：1 single screw rod sealing strip extrusion equipment
On, 80 ms/min of rate of extrusion is unable to reach, otherwise percent defective greatly improves, and is mainly manifested in dowel inside sealing strip
Size became uneven.In the compounded combination of plasticizer, applicant it has been investigated that, selected polyester plasticizer and hydrogenated rosin
Sour methyl esters all has good anti-precipitation performance, but the anti-precipitation positive effect that two kinds of plasticizer are used in combination is better than exclusive use
Hydrogenated methyl rosinate and the anti-precipitation effect that polyester plasticizer is used alone.Research also found that hydrogenated methyl rosinate melts
Reachable -47 DEG C of initial temperature of point, its resistance to low temperature is more preferable compared with polyester plasticizer, and polyester plasticizer compounding use, can be with
Make up the shortcomings that polyester plasticizer brittle temperature deficiency is used alone.Refrigerator, refrigerator-freezer sealing bar composition in the present invention
In formula, from the high polymerization degree resin that the degree of polymerization is 1600 ~ 1800, with the m of specific surface area 400 ~ 4502/ g gas phase hard charcoal
Black, polyester plasticizer compounding hydrogenated methyl rosinate plasticizer, four kinds of key components have association under the dosage of application claims
Same effect is indispensable；The refrigerator-freezer manufactured PVC sealing strips, the bonding force value for pulling open sample and PCM sheet materials are less than 12N.Simultaneously
Meet 80 ms/min of sealing strip extrusion speed.
Preferably, polyester plasticizer used is adipate polyester type plasticizer, and adipate polyester type plasticizer is averaged
Molecular weight 1800 ~ 2200, viscosity are 2.8 ~ 3.2Pa.s；Preferably, adipate polyester type plasticizer is plasticized for adipate polyester type
Agent D-1050 or adipate polyester type plasticizer P N-400, adipate polyester type plasticizer D-1050 are that Taiwan Changxing chemistry is raw
Production, adipate polyester type plasticizer P N-400 are the production of Chinese mugwort Dicon A/S of Japan.Hydrogenated methyl rosinate used is commercially available work
Industry product, range of viscosities are 3.8 ~ 4.0Pa.s, due to the distinctive abietic acid group of hydrogenated methyl rosinate, are dispersed in PVC as increasing
Agent is moulded, the steric hindrance of its molecule is huge and is not easy to separate out.In PVC sealing strip composite formula, relative to 1600
The mass parts dosage of ~ 1800 type degree of polymerization polyvinyl chloride resin 100, it is compound after the dosage of plasticizer should be 87 ~ 89 parts, to ensure that PVC is close
Shao's A hardness ranges of strip of paper used for sealing composition are between 70 ~ 71.The optimum compound proportion example of polyester plasticizer and hydrogenated methyl rosinate
For polyester：The mass ratio of hydrogenated methyl rosinate is 57 ~ 44：31~44.Selected by the PVC sealing strip composition of the present invention
Filler gas-phase silica, also referred to as aerosil, it is preferred that the gas-phase silica require primary particle size range for 5 ~
30 nanometers, 400 ~ 450m of specific surface area2/ g, dosage of the gas-phase silica in refrigerator-freezer is formulated with PVC sealing strip are 18
~ 20 parts, 87 ~ 88 parts are used cooperatively with plasticizer, have the effect of resistance plasticizer.Preferably, calcium zinc stabilizer is moral
State's bear board calcium zinc stabilizer 9700, the thermal stability of the stabilizer is optimal, and similar 9700 other trades mark also can be selected.Lubrication
In agent, it is preferred that OPE mean molecule quantity is 1000, and Tissuemat E mean molecule quantity is 1000, and lubricant is oxygen
Change Tissuemat E and Tissuemat E mass ratio 1 ~ 2：1 ~ 2 mixture.
For preparation method of the present invention：Applicant is in step 1）It is middle to use first by polyvinyl chloride resin, plasticizer and calcium zinc stabilizer
Heating stirring mixes, and in order to which the plasticizer of big dosage is fully absorbed by polyvinyl chloride resin, then adds gas-phase silica, lubrication
Agent and antioxidant, continue to stir at 100 DEG C ~ 110 DEG C, until material substantially uniformity, plasticizer absorption is completely in powdered.This is mixed
Material mode, can be easy to that plasticizer is quick, is uniformly absorbed by polyvinyl chloride resin.Preferably, step 2）Double screw extruder used
Feeding frequency is 20 ~ 25Hz, and engine speed is 80 ~ 100r/min, and head adds 140 mesh screen packs.Preferably, the anti-precipitation
The preparation method of the PVC sealing strip composition of refrigerator-freezer, in addition to step 3）The preparation of sealing strip：3）By step 2）Institute
Composition extrusion molding in the single screw extrusion machines of Φ 65 sealing section bar mouth mold is obtained, sizing cooling, extrusion temperature is 140 ~ 165
DEG C, sealing strip traction line rate is 75 ~ 80 ms/min, obtains PVC refrigerator-freezer sealing strip products.
Compared with prior art, a kind of anti-precipitation property refrigerator-freezer PVC sealing strip composition and its preparation of the invention
Beneficial effect is possessed by method：The PVC sealing strip composition has higher anti-precipitation performance, and can expire
The high speed extrusion production of 80 ms/min of foot, improves production efficiency.It is close using refrigerator-freezer polyvinyl chloride obtained by the formula of the present invention
Shao A hardness of strip of paper used for sealing can meet index request with PCM sheet materials cohesive force, and meet the high production of 80m/min extrusions
Rate requirement, hence it is evident that improve the production efficiency of refrigerator-freezer PVC sealing strip, in a disguised form reduce production cost.Also, this is poly-
Vinyl chloride sealing bar composition has higher tensile strength and low-temperature resistance embrittlement performance.
Embodiment
Embodiment 1 ~ 9 is a kind of anti-precipitation property refrigerator-freezer PVC sealing strip composition of the present invention and preparation method thereof
Embodiment.Wherein embodiment 2 is most preferred embodiment.
The proportioning of the embodiment 1 ~ 9 of table 1（In parts by weight）
。
The proportioning of the comparative example 1 ~ 9 of table 2（In parts by weight）
。
The proportioning of the comparative example 10 ~ 15 of table 3（In parts by weight）
。
In table 1 ~ 3：Calcium zinc stabilizer 9700（It is abbreviated as 9700）Produced for German bear board.Adipate polyester type plasticizer D-
1050（It is abbreviated as D-1050）For Taiwan Changxing chemical production, mean molecule quantity 1800 ~ 2200, viscosity is 2.8 ~ 3.2Pa.s.Institute
Hydrogenated methyl rosinate is commercially available industrial goods, and range of viscosities is 3.8 ~ 4.0Pa.s.Gas-phase silica is nanoscale, primary
Particle size range is 5 ~ 30 nanometers, 400 ~ 450m of specific surface area2/g。
The preparation method of embodiment 1 ~ 9 uses following steps：
1）Polyvinyl chloride resin, plasticizer and calcium zinc stabilizer are weighed by weight, are together put into high-speed mixer 100 DEG C ~ 110 DEG C
Lower high-speed stirred, it is well mixed, gas-phase silica, lubricant and antioxygen is added after plasticizer is fully absorbed by polyvinyl chloride
Agent, continue high-speed stirred at 100 DEG C ~ 110 DEG C, after being well mixed, plasticizer absorption is completely in powdered；It is discharged to stirring at low speed
Stirred in machine, discharged when being cooled to 40 ~ 45 DEG C, obtain mixed material；
2）Mixed material is added into extrusion in parallel double-screw extruder, is granulated, 130 ~ 150 DEG C of extrusion temperature, feeding frequency is
20 ~ 25Hz, engine speed are 80 ~ 100r/min, and head adds 140 mesh screen packs；Through pelletizing, cool down produce it is anti-separate out property refrigerator-freezer
With PVC sealing strip composition.
The preparation method of comparative example 1 ~ 15 is the same as embodiment 1 ~ 9.
Performance test
By embodiment and comparative example obtained composition as stated above, in the single screw extrusion machines of Φ 65 sealing section bar mouth mold
Extrusion molding, sizing cooling, extrusion temperature are 140 ~ 165 DEG C, and sealing strip traction line rate is 75 ~ 80 ms/min, obtains PVC
Refrigerator-freezer sealing strip sample.
The embodiment sample the performance test results of table 4
。
The comparative example the performance test results of table 5
。
The performance test results of comparative example table 3 contrast of the present invention of table 6
。
It can be seen that by the performance test of table 4 and table 5 ~ 6：In embodiment 1 ~ 9 average degree of polymerization of polyvinyl chloride resin 1600 ~
In the range between 1800, the m of specific surface area 400 ~ 4502/ g 18 ~ 20 parts of gas-phase silica dosage, polyester plasticizer and hydrogenation pine
Fragrant sour methyl esters in mass ratio 57 ~ 44：During 31 ~ 44 compound use, Shao A hardness of refrigerator-freezer PVC sealing strip and PCM sheet materials
Cohesive force can meet index request, and meet the high production rate requirement of 80m/min extrusions.
It can be seen that by the performance test contrast of table 5 and table 6：The sealing strip of PVC2500 resins does not reach squeezing for 80m/min
Go out throughput rate.Also, the sealing strip formula of D-1050 or hydrogenated methyl rosinate is used alone, its PCM sheet materials cohesive force is high
In 12.0N.And even if D-1050 and hydrogenated methyl rosinate compounding use, used in no gas-phase silica or gas-phase silica
When amount does not reach 18 ~ 20 parts, sealing strip is with PCM sheet material cohesive forces also above 12.0N.Performance formula from the table 6 of the present invention
Testing result relatively in find out no matter DOP, DOTP, TOTM, polyester plasticizer are used alone or compounding use, itself and PCM
Sheet material cohesive force is both greater than 12N.Only from the degree of polymerization be 1600 ~ 1800 PVC with high, specific surface area 400 ~
450 m2/ g gas-phase silica, polyester plasticizer compound hydrogenated methyl rosinate plasticizer in the range of application claims,
The sealing strip of preparation could meet 80 ms/min of production simultaneously and be less than 12.0N requirement with PCM sheet materials cohesive force.
The above described is only a preferred embodiment of the present invention, be not the limitation for making other forms to invention, it is any
Those skilled in the art are changed or are modified as the equivalent of equivalent variations possibly also with the technology contents of the disclosure above
Embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is made to above example
Any simple modification, equivalent variations and remodeling, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of anti-precipitation property refrigerator-freezer PVC sealing strip composition, it is characterised in that by the raw material group of following parts by weight
Into：100 parts of polyvinyl chloride resin, 77 ~ 89 parts of plasticizer, 4 ~ 5 parts of calcium zinc stabilizer, 0.2 ~ 0.3 part of antioxidant, 18 ~ 20 parts of filler, profit
0.3 ~ 0.5 part of lubrication prescription；Plasticizer is the compound of polyester plasticizer and hydrogenated methyl rosinate.
2. the anti-precipitation property refrigerator-freezer PVC sealing strip composition of one kind according to claim 1, it is characterised in that by
The raw material composition of following parts by weight：100 parts of polyvinyl chloride resin, 87 ~ 88 parts of plasticizer, 4.5 parts of calcium zinc stabilizer, antioxidant 0.2 ~
0.25 part, 18 ~ 19 parts of filler, 0.4 part of lubricant.
3. the anti-precipitation property refrigerator-freezer PVC sealing strip composition of one kind according to claim 1, it is characterised in that：Institute
The polyester plasticizer and hydrogenated methyl rosinate stated are by weight 44 ~ 57：31 ~ 44 are used in combination.
4. the anti-precipitation property refrigerator-freezer PVC sealing strip composition of one kind according to claim 1, it is characterised in that：Institute
The polyester plasticizer stated is adipate polyester type plasticizer, adipate polyester type plasticizer mean molecule quantity 1800 ~ 2200, viscosity
For 2.8 ~ 3.2Pa.s.
5. the anti-precipitation property refrigerator-freezer PVC sealing strip composition of one kind according to claim 1, it is characterised in that：Institute
The degree of polymerization for the polyvinyl chloride resin stated is 1600 ~ 1800.
6. the anti-precipitation property refrigerator-freezer PVC sealing strip composition of one kind according to claim 1, it is characterised in that：Institute
The calcium zinc stabilizer stated is calcium zinc stabilizer 9700.
7. the anti-precipitation property refrigerator-freezer PVC sealing strip composition of one kind according to claim 1, it is characterised in that：Institute
The antioxidant stated is antioxidant DLTDP.
8. the anti-precipitation property refrigerator-freezer PVC sealing strip composition of one kind according to claim 1, it is characterised in that：Institute
The filler stated is gas-phase silica, and gas-phase silica is nanoscale, and the specific surface area of gas-phase silica is 400 ~ 450 m2/g。
9. the anti-precipitation property refrigerator-freezer PVC sealing strip composition of one kind according to claim 1, it is characterised in that：Institute
The lubricant stated is the mixture of OPE and Tissuemat E by any mass ratio.
A kind of 10. preparation side of anti-precipitation property refrigerator-freezer PVC sealing strip composition described in any one of claim 1 ~ 9
Method, it is characterised in that comprise the following steps：
1）Polyvinyl chloride resin, plasticizer and calcium zinc stabilizer are weighed by weight, are together put into high-speed mixer 100 DEG C ~ 110 DEG C
Lower stirring, gas-phase silica, lubricant and antioxidant are added after being well mixed, continues to stir at 100 DEG C ~ 110 DEG C, is well mixed
After be discharged in low-speed mixer and stir, discharged when being cooled to 40 ~ 45 DEG C, obtain mixed material；
2）Mixed material is added into extrusion in parallel double-screw extruder, is granulated, 130 ~ 150 DEG C of extrusion temperature, through pelletizing, cooling
Produce composition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610485012.7A CN107540977A (en) | 2016-06-28 | 2016-06-28 | A kind of anti-precipitation property refrigerator-freezer PVC sealing strip composition and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948403A (en) * | 2018-05-02 | 2018-12-07 | 广东远华新材料实业有限公司 | A kind of polyvinyl-chloride foam material and preparation method thereof |
| CN111909471A (en) * | 2020-07-07 | 2020-11-10 | 广东顺德安和密封新材料科技有限公司 | Polyvinyl chloride sealing strip for refrigerator and preparation method thereof |
| CN114736472A (en) * | 2022-04-22 | 2022-07-12 | 公元管道(天津)有限公司 | Efficient flowing separation auxiliary agent and PVC-U injection molding pipe fitting material prepared from same |
| CN115703912A (en) * | 2021-08-09 | 2023-02-17 | 中国石油化工股份有限公司 | Low-precipitation temperature-resistant polyvinyl chloride cable material composition and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739987A (en) * | 2013-12-09 | 2014-04-23 | 吴江市董鑫塑料包装厂 | PVC sealing strip sectional material |
| CN103923412A (en) * | 2014-04-04 | 2014-07-16 | 合肥美的电冰箱有限公司 | PVC (Polyvinyl Chloride) sealing strip and application thereof |
-
2016
- 2016-06-28 CN CN201610485012.7A patent/CN107540977A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739987A (en) * | 2013-12-09 | 2014-04-23 | 吴江市董鑫塑料包装厂 | PVC sealing strip sectional material |
| CN103923412A (en) * | 2014-04-04 | 2014-07-16 | 合肥美的电冰箱有限公司 | PVC (Polyvinyl Chloride) sealing strip and application thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948403A (en) * | 2018-05-02 | 2018-12-07 | 广东远华新材料实业有限公司 | A kind of polyvinyl-chloride foam material and preparation method thereof |
| CN111909471A (en) * | 2020-07-07 | 2020-11-10 | 广东顺德安和密封新材料科技有限公司 | Polyvinyl chloride sealing strip for refrigerator and preparation method thereof |
| CN111909471B (en) * | 2020-07-07 | 2022-05-10 | 广东顺德安和密封新材料科技有限公司 | Polyvinyl chloride sealing strip for refrigerator and preparation method thereof |
| CN115703912A (en) * | 2021-08-09 | 2023-02-17 | 中国石油化工股份有限公司 | Low-precipitation temperature-resistant polyvinyl chloride cable material composition and preparation method thereof |
| CN115703912B (en) * | 2021-08-09 | 2023-12-01 | 中国石油化工股份有限公司 | Low-precipitation temperature-resistant polyvinyl chloride cable material composition and preparation method thereof |
| CN114736472A (en) * | 2022-04-22 | 2022-07-12 | 公元管道(天津)有限公司 | Efficient flowing separation auxiliary agent and PVC-U injection molding pipe fitting material prepared from same |
| CN114736472B (en) * | 2022-04-22 | 2023-11-17 | 公元管道(天津)有限公司 | Efficient flow blocking precipitation aid and PVC-U injection molding pipe fitting material prepared from same |
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