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Preparation method of modified basalt fiber-whisker reinforced silane cross-linking wear-resistant master batches

A basalt fiber and silane cross-linking technology, applied in the field of mechanical plastic products, can solve the problems of brittleness, impact resistance, poor heat resistance, etc., and achieve the effects of enhanced fluidity, roughness, and tensile properties.

Inactive Publication Date: 2018-12-11
界首市鑫一龙机械设备购销有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyethylene also has disadvantages such as poor heat resistance, brittleness and poor impact resistance. It is an important way to improve performance by adding inorganic fillers to modify it.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing a modified basalt fiber-whisker-reinforced silane crosslinked wear-resistant masterbatch, characterized in that it comprises the following steps:

[0030] (1) Surface modification of basalt fiber:

[0031] Clean 10 parts of basalt fiber ultrasonically for 20 minutes, then put it into acetone solution and soak it for 1 day, then keep it in a blast drying oven at 75-85°C for 40 minutes and dry it, put it in concentrated nitric acid, and keep it warm in a water bath at 60-63°C After 1 hour, wash with water until the pH is neutral, put it in a blast drying oven at 75-85°C for 40 minutes and dry it, then soak it in a rare earth surface modification solution for 1 hour, then keep it warm in a blast drying oven at 75-85°C Dry for 1h to obtain surface-treated basalt fibers;

[0032] (2) Organic modification of filler hydrotalcite:

[0033] Stir the ethanol aqueous solution vigorously in a water bath at 70-73°C, add 4 parts of magnesium aluminum hydrotal...

Embodiment 2

[0044] A method for preparing a modified basalt fiber-whisker-reinforced silane crosslinked wear-resistant masterbatch, characterized in that it comprises the following steps:

[0045] (1) Surface modification of basalt fiber:

[0046] Clean 15 parts of basalt fibers ultrasonically for 25 minutes, then put them into acetone solution and soak them for 2 days, then keep them in a blast drying oven at 75-85°C for 45 minutes, put them in concentrated nitric acid, and keep them warm in a water bath at 60-63°C After 2 hours, wash with water until the pH is neutral, put it in a blast drying oven at 75-85°C for 45 minutes and dry it, then soak it in a rare earth surface modification solution for 2 hours, then keep it in a blast drying oven at 75-85°C Dry for 2 hours to obtain surface-treated basalt fibers;

[0047] (3) Organic modification of filler hydrotalcite:

[0048] Stir the ethanol aqueous solution vigorously in a water bath at 70-73°C, add 8 parts of magnesium aluminum hydro...

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Abstract

The invention discloses a preparation method of modified basalt fiber-whisker reinforced silane cross-linking wear-resistant master batches. The preparing the method comprises the following steps: uniformly mixing grafted master batches with basalt fiber after surface modification treatment, organic modified hydrotalcite and alpha-semi-hydrated gypsum whiskers after the surface modification treatment, and carrying out cross-linking reaction in a water bath, thus preparing the silane cross-linking wear-resistance master batches. According to the preparation method disclosed by the invention, hydrotalcite is used as filler, potassium dodecyl phosphate is adopted as an organic negative ion modifier, and magnesium-aluminum hydrotalcite is organic modified through an interlayer anion exchangemethod by utilizing the characteristic of replaceability of the interlayer anion of the hydrotalcite, so that the organic hydrotalcite is obtained; the adhesion between the hydrotalcite and a polyolefin matrix is enhanced; starch and nano calcium carbonate are used for filling the modified polyether resin, reinforcing and toughening functions are obtained, and the fluidity and the tensile propertyof the modified polyethylene can be enhanced.

Description

technical field [0001] The invention belongs to the field of plastic product materials for machinery, and in particular relates to a preparation method of a modified basalt fiber-whisker reinforced silane crosslinked wear-resistant master batch. Background technique [0002] LLDPE molecules mainly have a linear structure, and there are a certain number of short branched chains on the straight chain of the macromolecule, and the intermolecular stacking is very tight. Therefore, LLDPE has excellent flexibility and processing fluidity. However, its melting point is low, and its molecular chains are prone to slip. Under the condition of repeated friction, the friction heat generated can easily cause plastic deformation of the composite material, which seriously affects its performance and reduces its service life. [0003] As a representative of thermoplastics, polyethylene has always been concerned about its application value, and seeking a composite polyethylene that can save...

Claims

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Application Information

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IPC IPC(8): C08L51/06C08L23/08C08L3/02C08K9/04C08K9/02C08K7/10C08K3/26C08K7/08C08J3/22C08F255/02C08F230/08
CPCC08F255/02C08J3/226C08J2403/02C08J2423/08C08J2451/06C08K3/26C08K7/08C08K7/10C08K9/02C08K9/04C08K2003/265C08K2201/011C08F230/08
Inventor 申慧君
Owner 界首市鑫一龙机械设备购销有限公司
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