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A kind of PVC film and preparation method thereof

A PVC film and elastomer technology, applied in the field of PVC film and its preparation, can solve the problems of reducing film smoothness, high cost of elastomer, poor processing performance of semi-rigid formula, etc., and achieve stable size of silk screen or digital printing patterns, The effect of small volume shrinkage

Active Publication Date: 2018-08-17
广州雷诺丽特塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the dibasic acid ester of linear structure is a secondary plasticizer, its compatibility with PVC is poorer than that of the main plasticizer, and it is easy to migrate to the self-adhesive layer to cause volume shrinkage of the film; in addition, chlorination Polyethylene reduces the smoothness of the film, MBS and NBR have poor weather resistance, EVA and polyurethane elastomers are too costly, and polyurethane has poor processability in semi-rigid formulations

Method used

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  • A kind of PVC film and preparation method thereof
  • A kind of PVC film and preparation method thereof
  • A kind of PVC film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of PVC film, preparation raw material comprises the following components by weight: 30 parts of k-60PVC resin powder, 70 parts of PVC elastomer resin powder (wherein containing the vinyl chloride-vinyl acetate copolymer of mass fraction 4%), 20 parts of benzene Diformic acid ester and DOTP mixture (mass ratio is 1:1), and 20 parts of additives, including 1 part of barium zinc stabilizer and 1 part of titanium dioxide.

[0022] The preparation method of above-mentioned PVC film is as figure 1 As shown, it includes the following steps: after weighing the components by mass parts, add them into the high-speed mixer 1 and mix evenly, then enter the internal mixer 2 (also can be a planetary extruder) for internal mixing and plasticization, and then enter the dual The roller mill 3 is then plasticized to make it uniform, and then the rubber material enters the filter 4 to filter impurities, and then is rolled by the inverted L-shaped 4-wheel calender 5. Ra 0.07um rubb...

Embodiment 2

[0026] A kind of PVC film, preparation raw material comprises the following components by weight: 46 parts of k-70PVC resin powder, 55 parts of PVC elastomer resin powder (which contains mass fraction 5% vinyl chloride-vinyl acetate copolymer), 25 parts of polyethylene Propylene glycol diate, 1.3 parts of epoxidized soybean oil, and 11 parts of additives, including 3 parts of barium zinc stabilizer and 7 parts of titanium dioxide.

[0027] The preparation method of above-mentioned PVC film is as figure 1 As shown, it includes the following steps: after weighing the components by mass parts, add them into the high-speed mixer 1 and mix evenly, then enter the internal mixer 2 (also can be a planetary extruder) for internal mixing and plasticization, and then enter the dual The roller mill 3 is then plasticized to make it uniform, and then the rubber material enters the filter 4 to filter impurities, and then is rolled by the inverted L-shaped 4-wheel calender 5. Ra 0.096um rubb...

Embodiment 3

[0031] A kind of PVC film, preparation raw material comprises the component of following parts by weight: 60 parts of k-65PVC resin powder, 40 parts of PVC elastomer resin powder (wherein containing mass fraction 6% vinyl chloride-vinyl acetate copolymer), 28 parts of TOTM and A mixture of Hexamoll DINCH (mass ratio 1:3), 5 parts of epoxidized soybean oil, and 1 part of additive, which contains 5 parts of barium zinc stabilizer and 15 parts of titanium dioxide.

[0032] The preparation method of above-mentioned PVC film is as figure 1 As shown, it includes the following steps: after weighing the components by mass parts, add them into the high-speed mixer 1 and mix evenly, then enter the internal mixer 2 (also can be a planetary extruder) for internal mixing and plasticization, and then enter the dual The roller mill 3 is then plasticized to make it uniform, and then the rubber material enters the filter 4 to filter impurities, and then is rolled by the inverted L-shaped 4-wheel...

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Abstract

The invention discloses a PVC film. Materials for preparing the PVC film include the following components in parts by weight: 30 to 60 parts of PVC resin powder, 40 to 70 parts of PVC elastomer resin powder, 20 to 28 parts of main plasticizer and 0 to 5 parts of epoxy soybean oil. In addition, the invention further discloses a preparation method for the PVC film. The tensile strength, elongation at break and elasticity modulus of the PVC film prepared by the method disclosed by the invention are enhanced.

Description

technical field [0001] The invention relates to a PVC film, in particular to a PVC film and a preparation method thereof. Background technique [0002] The semi-rigid PVC film plasticizer content used as self-adhesive advertising materials is generally 22 to 28 parts (corresponding to the number of plasticizers added to 100 parts of PVC resin in the formula), when the plasticizer content is less than 22 parts , the film is too hard and brittle, which is not conducive to processing and use; and when the plasticizer content is higher than 28 parts, the film becomes too soft, and it is easy to stretch and deform during subsequent processing, and the relatively high plasticizer content It is easy to make the plasticizer contained in PVC migrate to the self-adhesive layer, and the volume of the film will shrink during use, which will deform the advertising pattern of silk screen printing or digital inkjet printing. In the winter season, the semi-rigid PVC film becomes hard and b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L67/02C08L91/00C08K13/02C08K3/22C08K5/12B29C43/24B29C59/04B29L7/00
CPCB29C43/24B29C59/04B29L2007/00C08J5/18C08J2327/06C08J2427/06C08K2003/2241C08K2201/014C08L27/06C08L2203/16C08L2205/025C08L2205/035C08L91/00C08K13/02C08K5/12C08K3/22C08L67/02
Inventor 曾勇军江溪
Owner 广州雷诺丽特塑料有限公司