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Anti-aging polyvinyl chloride (PVC) film

A PVC film and formulation technology, applied in the field of anti-aging PVC film, can solve the problems of easy migration, extraction and volatilization of plasticizers, aging phenomenon, etc., achieve good synergistic effect, improve thermal aging resistance, and improve thermal aging resistance. Effect

Inactive Publication Date: 2012-09-19
BANGKAI HLDG GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, PVC film is widely used as a synthetic material, but PVC film is easily degraded by heat, light and oxygen during processing and use, and the plasticizer in it is also easy to migrate, extract and volatilize, that is, the usual occurrence of The so-called aging phenomenon is a major defect of PVC film, so improving the anti-aging performance of PVC film has become an important direction for the research and development of new products of PVC film

Method used

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  • Anti-aging polyvinyl chloride (PVC) film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1 Congo red, dynamic aging test of the sample containing calcium zinc stabilizer

[0015] The material formula used is: 100g PVC, 32g DOP, 16g PA, 4g ESO, 15g CaCO 3 , 2.5g calcium zinc stabilizer.

[0016] The test result of the Congo red tester is: the decomposition time of the sample containing calcium and zinc stabilizer is 61min.

[0017] The dynamic aging test results are: the aging time of the sample containing calcium zinc stabilizer is 85min.

[0018] The test results of Example 1 and Comparative Example show that the heat aging resistance of the calcium-zinc stabilizer is better than that of the barium-zinc stabilizer. In addition, the fluidity of the material is also better when the calcium-zinc stabilizer is used.

Embodiment 2

[0019] Example 2 Thermal stability synergistic effect test of ESO and PDOP in calcium-zinc stabilizer system

[0020] The material formula is: 100g PVC, 32g DOP, 16g PA, 15g CaCO 3 , 2.5g calcium zinc stabilizer, 0.8g PDOP, ESO is a variable, the decomposition time of the sample tested by the Congo red tester, the influence of ESO and PDOP on the decomposition time of the sample is shown in Table 1.

[0021] Table 1

[0022]

[0023] Note: Decomposition time PDOP It is the decomposition time of adding 0.8 parts of PDOP.

[0024] It can be seen from Table 1 that the combination system of ESO, PDOP and calcium-zinc stabilizer improves the thermal aging resistance of the sample. The amount of calcium-zinc stabilizer should also be determined with reference to other ingredients in the formula. If the amount is too small, the heat aging resistance of the sample will be poor, but if the amount is too large, it will easily cause blooming.

[0025] Can find out from embodimen...

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Abstract

The invention discloses an anti-aging polyvinyl chloride (PVC) film, which comprises the following formula components: 100 parts by weight of PVC, 32 parts by weight of dioctyl phthalate (DOP), 16 parts by weight of polyamide (PA), 0-8 parts by weight of epoxidized soyabean oil (ESO), 15 parts by weight of nanometer CaCO3 and 2.5 parts by weight of calcium zinc stabilizer. The formula component of the anti-aging PVC film also comprises diisooctyl phenyl phosphite (PDOP). The anti-aging PVC film adopts the calcium zinc stabilizer, the anti-aging performance of the PVC film is improved, and the aging time is prolonged. The calcium zinc stabilizer, ESO and PDOP in the anti-aging PVC film have the synergy, PDOP can generate chelation with a metal particle or generates phosphite so as to inhibit the catalytic action when PDOP removes HCl, the aging performance can be further improved, and the aging time of a product is prolonged.

Description

technical field [0001] The invention relates to a polymer film, in particular to an anti-aging PVC film. Background technique [0002] At present, PVC film is widely used as a synthetic material, but PVC film is easily degraded by heat, light and oxygen during processing and use, and the plasticizer in it is also easy to migrate, extract and volatilize, that is, the usual occurrence of The so-called aging phenomenon is a major defect of PVC film, so improving the anti-aging performance of PVC film has become an important direction for researching and developing new products of PVC film. Contents of the invention [0003] The object of the present invention is to provide an anti-aging PVC film, which improves the anti-aging performance of the PVC film and prolongs the aging time. [0004] The present invention is realized through the following technical solutions: [0005] A PVC film, the formulation of the PVC film is as follows: 100 parts by weight of PVC (polyvinyl chl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L77/00C08K13/02C08K5/12C08K5/1515C08K3/26C08K5/526
Inventor 阮荣光
Owner BANGKAI HLDG GROUP
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