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Reinforcing and toughening masterbatch for vinyl polymer and preparation method thereof

A vinyl polymer, strengthening and toughening technology, applied in the field of chemical materials, can solve the problems of inability to take into account the toughness and the impact resistance of materials, and achieve the effect of improving the dispersion effect, reducing the cost of raw materials, and high dispersibility.

Active Publication Date: 2011-12-14
泉州兴源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, the present invention proposes a reinforced and toughened modified masterbatch for vinyl polymers and a preparation method thereof. The masterbatch can not only strengthen vinyl polymers, but also improve the impact resistance of materials, and solve the problem of Vinyl polymers cannot take into account the toughness when strengthening and modifying, resulting in a decrease in the impact resistance of the material

Method used

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  • Reinforcing and toughening masterbatch for vinyl polymer and preparation method thereof
  • Reinforcing and toughening masterbatch for vinyl polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Reinforcing and toughening masterbatch for vinyl polymers, including the following components and weight fraction ratios:

[0023] Nano silica: 20-50%,

[0024] Ultrafine calcium carbonate: 5-20%, the average particle size of the electron microscope is 50-100nm,

[0025] Ethylene-acrylate-carbon monoxide: 10-30%,

[0026] EVA resin (ethylene-vinyl acetate copolymer): 5-20%,

[0027] Dispersant: 1.1%-5%.

[0028] Wherein, the dispersant adopts the mixture of polyethylene wax, stearic acid and paraffin.

Embodiment 2

[0030] This embodiment is optimized on the basis of the weight fraction of the components in Example 1, including the following components and weight fraction ratio:

[0031] Nano silica: 30-40%,

[0032] Ultrafine calcium carbonate: 5-15%,

[0033] Ethylene-acrylate-carbon monoxide: 25-35%,

[0034] EVA resin (ethylene-vinyl acetate copolymer): 5-15%,

[0035] Polyethylene wax: 0.5%-1.5%,

[0036] Stearic acid: 0.3%-1.5%,

[0037] Paraffin: 0.3%-2%.

[0038] Example 1 and Example 2 use the multi-component graft copolymer type toughening agent ethylene-acrylate-carbon monoxide, which has a low melting point, high reactivity, high dispersibility and toughness itself, and can effectively improve the relationship between nano inorganic particles and polymers. The interfacial properties between them are easy to disperse, giving full play to the strengthening and toughening effect of nano-inorganic molecules, and the synergistic toughening of the toughening agent and the coati...

Embodiment 3

[0040] Reinforcing and toughening masterbatch for vinyl polymers, including the following components and weight fraction ratios:

[0041] Nano silica: 20-50%, preferably 30-40%,

[0042] Ultrafine calcium carbonate: 5-20%, the electron microscope average particle diameter of ultrafine calcium carbonate is 50-100nm, preferred, 5-15%,

[0043] Ethylene-acrylate-carbon monoxide: 10-35%, preferably, 25-35%,

[0044] EVA resin (ethylene-vinyl acetate copolymer): 5-20%, preferably, 5-15%,

[0045] Dispersant: 1.1%-5%, preferably, 1.5%-5%,

[0046] Coupling agent: less than 3%.

[0047] In this example, on the basis of examples 1 and 2, by adding a small amount of coupling agent, the compatibility of inorganic substances and organic polymers can be improved, the interfacial bonding force can be improved, and the performance of the material can be improved.

[0048] refer to figure 1 As shown, the method for preparing the above-mentioned reinforced and toughened masterbatch for v...

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Abstract

The invention relates to the field of chemical materials, in particular to a master batch used for improving vinyl polymer properties and a method for preparing the same. The strengthening and toughening master batch used for a vinyl polymer comprises the following components in percentage by weight: 20-50 percent of nano silicon dioxide, 5-20 percent of ultra-fine calcium carbonate, 10-30 percent of ethylene-acrylic ester-carbon monoxide, 5-20 percent of EVA resin (ethylene-vinyl acetate copolymer), 1.1-5 percent of dispersing agent and 0-3 percent of coupling agent. The method for preparing the strengthening and toughening master batch for the vinyl polymer comprises the following steps of: 1): adding the components according to the percentage by weight into a high-speed stirring machine with a heating function to mix and stir; 2), feeding the mixed material into a twin-screw extruder to plasticize and mix and disperse; and 3): granulating through a granulating device. According to the invention, the multi-polymer and nano inorganic particle composite strengthening and toughening properties are mainly used, the strength and the toughness of materials are also used, and the master batch can be used for obtaining a vinyl polymer material with excellent comprehensive performance.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a masterbatch for improving the properties of vinyl polymers and a preparation method thereof. Background technique [0002] Vinyl polymer is a kind of high molecular polymer material, which is widely used in construction, metallurgy, chemical industry and other fields, and is a kind of basic chemical material with wide application. However, vinyl polymers (especially polyvinyl chloride) have poor toughness, which limits their application in some fields. Therefore, in order to improve the toughness of vinyl polymers, some conventional toughening methods have been adopted in the prior art, but the strength of the toughened vinyl polymers is greatly reduced. Alternatively, reinforcement of vinyl polymers tends to result in a loss of toughness. For example, Chinese Patent Publication No. CN87106690 discloses a vinyl chloride polymer product reinforced with glass fibers and a prep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/02C08L51/08C08L23/08C08L31/04C08K13/02C08K3/36C08K3/26
Inventor 陈仕泉李向荣
Owner 泉州兴源新材料科技有限公司
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