A kind of universal polymer compatibilizer and preparation method thereof

A polymer, universal technology, applied in the preparation of the above-mentioned universal polymer compatibilizer, in the field of universal polymer compatibilizer, can solve the problem of poor melt fluidity, narrow scope of application, and connection of interface compatibilizers. problems such as low branch rate, to achieve the effect of easy interfacial tension, improving compatibility and reducing interfacial tension

Inactive Publication Date: 2017-01-04
FENGHUA XINGYANG PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the toxicity of maleic anhydride is relatively high, and it is not a safe and reliable choice in terms of environmental protection; at the same time, maleic anhydride is usually only directly connected to the main chain of long polyolefins in the form of a monomer, and then The low branch rate leads to poor melt fluidity of the prepared interfacial compatibilizer
There are also some other types of compatibilizers that are widely used, such as epoxy-type, imide-type, isocyanate-type and other compatibilizers, but they have a common disadvantage with maleic anhydride-grafted polymer compatibilizers, namely Narrow scope of application

Method used

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  • A kind of universal polymer compatibilizer and preparation method thereof
  • A kind of universal polymer compatibilizer and preparation method thereof
  • A kind of universal polymer compatibilizer and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029]

[0030] Wherein, the structural formula of octaepoxy modified silsesquioxane is as follows:

[0031]

[0032] The preparation method of above-mentioned universal polymer compatibilizer comprises the following steps:

[0033] (1) In a tank reactor, dissolve octaepoxy modified silsesquioxane in tetrahydrofuran at a ratio of 1kg / 10L, and add 2g of N,N-diisopropyl to the tank reactor base ethylamine, and then under the condition that the stirring speed is 10r / min and the temperature of the tank reactor is 30°C, the single-ended hydroxyl polystyrene is divided into five equal batches and added to the tank reactor successively, and two adjacent batches The interval time between the addition of single-ended hydroxyl polystyrene is 15 minutes, and the stirring reaction is continued for 5 hours after the addition is completed;

[0034] (2) Evaporate the mixed solution in the tank reactor after the reaction in step (1) to dryness to obtain solid A, then wash the obtained ...

Embodiment 2

[0038] In this embodiment, the universal polymer compatibilizer comprises the following components by weight:

[0039]

[0040] Wherein, the structural formula of octaepoxy modified silsesquioxane is as follows:

[0041]

[0042] The preparation method of above-mentioned universal polymer compatibilizer comprises the following steps:

[0043] (1) In a tank reactor, dissolve octaepoxy modified silsesquioxane in tetrahydrofuran at a ratio of 1kg / 10L, and add 1.5g N, N-diiso Propylethylamine, and then under the conditions of a stirring speed of 10r / min and a tank reactor temperature of 40°C, the single-ended hydroxyl polystyrene was divided into five batches of equal amounts and added to the tank reactor in turn, and two adjacent The interval between adding batches of single-ended hydroxyl polystyrene is 15 minutes, and the stirring reaction is continued for 4.5 hours after the addition is completed;

[0044] (2) Evaporate the mixed solution in the tank reactor after the re...

Embodiment 3

[0048] In this embodiment, the universal polymer compatibilizer comprises the following components by weight:

[0049]

[0050] Wherein, the structural formula of octaepoxy modified silsesquioxane is as follows:

[0051]

[0052] The preparation method of above-mentioned universal polymer compatibilizer comprises the following steps:

[0053] (1) In a tank reactor, dissolve octaepoxy modified silsesquioxane in tetrahydrofuran at a ratio of 1kg / 10L, and add 2.5g N, N-diiso Propylethylamine, and then under the conditions of a stirring speed of 20r / min and a tank reactor temperature of 50°C, divide the single-ended hydroxyl polystyrene into five equal batches and add them to the tank reactor successively. The interval between adding batches of single-ended hydroxyl polystyrene is 15 minutes, and the stirring reaction is continued for 4 hours after the addition is completed;

[0054] (2) Evaporate the mixed solution in the tank reactor after the reaction in step (1) to dry...

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Abstract

The invention relates to a polymer compatibilizer with universality. The polymer compatibilizer with universality comprises the following components in parts by weight: 20-35 parts of octa-epoxy modified silsesquioxane, 5-10 parts of mono-hydroxyl-terminated polystyrene, 5-10 parts of methyl methacrylate-(2-hydroxyethyl) methacrylate copolymer, 5-10 parts of hydroxyl-terminated polyethylene, 1-5 parts of N,N-diisopropylethylamine and 0.1-0.5 part of succinic acid. The invention also relates to a preparation method of the compatibilizer. The polymer compatibilizer has the advantages that the polarity and rigidity of the three polymer molecular skeletons including polystyrene, the methyl methacrylate-(2-hydroxyethyl) methacrylate copolymer and polyethylene can represent the properties of most polymers for general use; the polymer compatibilizer obtained by combining polystyrene, the methyl methacrylate-(2-hydroxyethyl) methacrylate copolymer and polyethylene can well satisfy the aim of recovery of most polymer alloys and waste plastics, thus greatly expanding the range of application of the compatibilizer; the polymer compatibilizer with a multi-arm and miktoarm star structure is constructed by using octa-epoxy modified silsesquioxane, thus increasing the grafting ratio of the compatibilizer.

Description

technical field [0001] The present invention relates to the technical field of compatibilizers, and specifically refers to a universal polymer compatibilizer that can be applied to polymer alloys, inorganic modification of polymers, and recycling of waste plastics. Process for the preparation of a suitable polymer compatibilizer. Background technique [0002] At present, the application of plastics in various industries is unmatched by other materials. With the advancement of social productivity and the development of science and technology, a single variety of homopolymers has long been unable to meet the increasingly stringent needs of various industries. With continuous attempts and efforts, people have developed a variety of block copolymers, such as ABS plastics, SBS plastics, etc., as well as a variety of polymer alloys, such as PP / PE, PP / PA, PA / PS , PA / ABS, ABS / PC, PBT / PA, PET / PA, PP / POE, PE / EPDM, TPE / PU, etc. [0003] In order to further endow polymer materials wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/26C08L33/12C08L33/14C08L25/18C08K5/549C08G65/28C08L77/02C08L55/02C08L67/02C08L53/02C08L23/12C08L97/02
CPCC08J3/246C08J2325/06C08L23/26C08L25/06C08L33/12
Inventor 刘明芳
Owner FENGHUA XINGYANG PLASTIC IND
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