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PVC resin special for BOPVC films, preparation method and application thereof

A PVC resin and film technology, applied in the field of high molecular polymers, can solve the problems that the performance of PVC matrix resin cannot meet the performance requirements of BOPVC film production process, etc., and achieve the effects of excellent anti-primary coloring performance, high transparency and good fluidity

Inactive Publication Date: 2019-09-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the technical problem to be solved by the present invention is to provide a special PVC resin for BOPVC film with high transparency, good fluidity, thermal stability and excellent primary coloring resistance, so as to solve the problem that the performance of PVC matrix resin in the prior art cannot meet the requirements of BOPVC. The performance requirements of the film production process;

Method used

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  • PVC resin special for BOPVC films, preparation method and application thereof
  • PVC resin special for BOPVC films, preparation method and application thereof
  • PVC resin special for BOPVC films, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] The preparation raw material of BOPVC film special-purpose PVC resin described in the present embodiment comprises:

[0050] Vinyl chloride 100kg;

[0051] 150kg deionized water;

[0052] Dispersant (high alcoholysis degree (75-80%) polyvinyl alcohol, low alcoholysis degree (40-45%) polyvinyl alcohol and hydroxypropyl methylcellulose with a mass ratio of 3:1:1) 0.08kg;

[0053] Initiator (di-(2-ethylhexyl) peroxydicarbonate and cumyl peroxyneodecanoate with a mass ratio of 3:1) 0.07kg;

[0054] pH regulator (ammonium bicarbonate) 0.001kg;

[0055] Terminator (diethylhydroxylamine) 0.01kg;

[0056] The samarium polymethacrylate dispersion with a degree of polymerization of 1500-2000 contains 0.2 kg of samarium polymethacrylate.

[0057] The preparation method of BOPVC film special-purpose PVC resin described in the present embodiment comprises the steps:

[0058] (1) Rinse the polymerization kettle clean, apply anti-sticking agent, add deionized water, initiator, di...

Embodiment 2

[0063] The raw materials and method for preparing PVC resin in this embodiment are the same as those in Example 1, the only difference being that the effective polymerization degree is 0.1 kg of samarium polymethacrylate with an effective polymerization degree of 1500-2000, and other polymerization formulas and processes are the same as those in the embodiment 1 is the same.

[0064] Test resin aging whiteness according to GB / T 15595-2008, dynamic plasticizer test resin dynamic thermal stability time, the whiteness of the PVC resin performance that this embodiment makes reaches 76.0%, 180 ℃ dynamic thermal stability time reaches 13min, and centrifugation No samarium polymethacrylate was found in the solution.

Embodiment 3

[0066] The raw materials and method for preparing PVC resin in this embodiment are the same as in Example 1, the only difference is that the effective addition of samarium polymethacrylate is 0.05kg, and other polymerization formulas and processes are the same as in Example 1.

[0067] Test resin aging whiteness according to GB / T 15595-2008, dynamic plasticizer test resin dynamic thermal stability time, the whiteness of the PVC resin performance that this embodiment makes reaches 74.6%, 180 ℃ dynamic thermal stability time reaches 10min, and centrifugation No samarium polymethacrylate was found in the solution.

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Abstract

Belonging to the technical field of macromolecular polymers, the invention in particular relates to a PVC resin special for BOPVC films, and further discloses a preparation method and application thereof. According to the PVC resin special for BOPVC films, a selected surfactant modified samarium polymethacrylate with a polymerization degree of 1500-2000 is prepared into a stable dispersion solution, and at the end of PVC resin polymerization, the dispersion solution is added as a functional additive into the PVC resin suspension system for modification treatment, the prepared finished productPVC resin has high transparency, good fluidity and thermal stability, and excellent primary coloring resistance, and can be used for preparation of BOPVC films. The resin is suitable for continuous industrial production of BOPVC films on special BOPVC equipment with the output of 1.2-1. ton / h, and the produced films are uniform in thickness and are more suitable for multi-layer overprinting of large automatic high-speed printers.

Description

technical field [0001] The invention belongs to the technical field of high molecular polymers, in particular relates to a special PVC resin for BOPVC film, and further discloses its preparation method and application. Background technique [0002] In the field of biaxially stretched film, the most common ones are BOPP film and BOPE film. BOPP film is widely used in food, daily necessities packaging and other fields due to its advantages of being odorless, tasteless and non-toxic; BOPE film is a relatively common general-purpose polymer film, but it has the defect of poor printability and is not suitable for use. in the printing industry. At present, BOPET film and SOPVC film are widely used in the printing industry, but due to the inherent defects of PVC resin and the great difficulty in the development of processing equipment, domestic BOPVC film is still in the research and development stage. [0003] At present, the production process of SOPVC film mainly adopts the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F114/06C08F2/20C08L27/06C08L33/02C08J5/18
CPCC08F2/20C08F114/06C08J5/18C08J2327/06C08J2433/02
Inventor 王晶李静侯斌梁斌张新华张桦桂俊杰孙培培刘浩王晓敏刘容德
Owner CHINA PETROLEUM & CHEM CORP