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Low-friction coefficient anti-bonding master batch special for metallized base film and preparation method thereof

A low friction coefficient, metallized technology, applied in the field of functional polymer materials, can solve the problems of high hardness, easy to scratch the film surface and wear equipment, etc., and achieve the effect of low surface energy, good processing performance and good fluidity

Active Publication Date: 2017-03-22
SHANTOU BEST SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a multifunctional masterbatch and its production process which can play a good anti-blocking effect and can reduce the friction coefficient of the metallized film, so as to solve the problems in the metallized base film that cannot be solved in the prior art. It is difficult to add a slip agent to reduce the coefficient of friction; and the existing materials for reducing the coefficient of friction have the problems of high hardness, easy to scratch the film surface and wear equipment, and the choice of particle size is not suitable for the anti-sticking agent of the metallized base film And other issues

Method used

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  • Low-friction coefficient anti-bonding master batch special for metallized base film and preparation method thereof
  • Low-friction coefficient anti-bonding master batch special for metallized base film and preparation method thereof
  • Low-friction coefficient anti-bonding master batch special for metallized base film and preparation method thereof

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Embodiment 1-6

[0034] The materials were weighed according to the formula shown in Table 1 to prepare a low friction coefficient anti-adhesion masterbatch for metallized base film.

[0035] Components and contents thereof in Table 1 Embodiment 1-6

[0036]

[0037] The binary copolymerized polypropylene in the embodiment has a melt index of 7-9g / 10min; it can also be replaced with a ternary copolymerized polypropylene with a melt index of 7-9g / 10min.

[0038] Wherein the synthesis method of PMSQ-PPSQ is: PhSi(OEt) 3 and MeSi(OEt) 3 Soluble in benzene, and under the catalysis of a small amount of HCL, use ultra-pure water for hydrolysis and condensation to obtain a high-purity ladder polymer with hydroxyl terminated and side chains containing methyl and phenyl groups; then add polysilicon under the condition of nitrogen gas oxane mass half of R 3 SiCl (R is Me, Et, Ph), kept at about 90°C for 2h to terminate the reaction. end up with R 3 SiO (R is Me, Et, Ph) terminated ladder polymer...

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Abstract

The invention relates to a low-friction coefficient anti-bonding master batch special for a metallized base film and a preparation method thereof. The low-friction coefficient anti-bonding master batch mainly comprises, by weight, 90-95 parts of polypropylene resin and 5-10 parts of polymethylsesquisiloxane-polyphenylsilsesquioxane. The polymethylsesquisiloxane-polyphenylsilsesquioxane is a ladder polymer with R3SiO terminated. The molecular formula of the polymethylsesquisiloxane-polyphenylsilsesquioxane is [CH3SiO1.5]n-[PhSiO1.5]m, wherein n is 5-8 and m is 2-5. According to the preparation method, an anti-sticking agent is added by means of side feeding through precision electronic weight loss scales, and pelleting is performed after melt blending by means of the special double-screw process. By the adoption of the method, the problem that no slipping agent (master batch) can be added into the metallized film and thus the friction coefficient is high and the problem that the low friction coefficient is required under the condition that no migration slipping agent can be added into an aluminum laminated film are effectively solved. The friction coefficient of the obtained metallized base film is lowered to 0.4 or below from 0.8 or above, the slipping property is good, no migration happens, and the product surface is not greasy, high in glossiness, resistant to abrasion, lasting and effective.

Description

technical field [0001] The invention relates to the field of functional polymer materials, in particular to a special low friction coefficient anti-adhesion masterbatch for metallized base films and its preparation. Background technique [0002] At present, there are two types of anti-adhesives commonly used in the domestic and foreign markets: inorganic anti-adhesives and organic anti-adhesives. Modern technology has developed a series of inorganic anti-blocking agents that can be used as thin films, such as diatomaceous earth, talcum powder, silicon dioxide, etc. But not all inorganic additives are effective. Moreover, some effective inorganic additives have other problems, such as high mechanical wear, great influence on optical properties, harmful to human health, etc., which limit their use. For example, Radosta et al. pointed out that diatomaceous earth is often used as an anti-blocking agent for films, but it will reduce the gloss of the film, high mechanical wear a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L83/04C08G77/06
CPCC08G77/045C08J5/18C08J2323/14C08J2483/04C08L23/14C08L2203/162C08L83/04
Inventor 刘小珊王锦江王大鹏周慕纯
Owner SHANTOU BEST SCI & TECH
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