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Preparation method of PVC lubricant

A PVC lubricant and additive technology, applied in the field of materials, can solve the problems of uneven dispersion and easy precipitation of PVC lubricants, achieve good lubricity and photothermal stability, improve heat resistance and hydrolysis resistance, and avoid precipitation and unstable effects

Inactive Publication Date: 2020-05-19
苏连吉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is the problem of non-uniform dispersion and easy precipitation of existing PVC lubricants, and a preparation method of PVC lubricants is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] A kind of preparation method of PVC lubricant, this preparation method comprises the steps:

[0035] (1) Put methyl stearate, auxiliary materials and additives into the reaction kettle according to the mass ratio of 13:4~6:0.3~0.5, use nitrogen protection, preheat at 60°C for 50min, and then add 70~90% of additive mass Auxiliary materials and methyl glucoside with 60% methyl stearate mass, depressurize to 0.06-0.09MPa, heat up to 98°C, and stir for 8h;

[0036] (2) After the reaction, cool down to room temperature, let stand for 1h, discharge, filter, and collect the filtrate. In parts by weight, take 120-130 parts of mixed solvent, 60-65 parts of filtrate, 20-25 parts of epoxy Propane, 10-13 parts of mixed monomers, 0.3-0.6 parts of initiator;

[0037] (3) First put the mixed solvent, filtrate and propylene oxide into the container, heat to 90-95°C, stir and react for 5 hours, then add the mixed monomer, use sodium hydroxide solution to adjust the pH to 9-10, add the ...

Embodiment 1

[0040] The excipients are propyl trichlorosilane and vinyl trichlorosilane.

[0041] The additive is benzyltriethylammonium chloride.

[0042] The auxiliary material is potassium carbonate, water and zinc oxide mixed in a mass ratio of 7:13:3.

[0043] The mixed monomer is made by mixing acrylamide and maleic anhydride in a mass ratio of 16:3.

[0044] The initiator is any one of ammonium persulfate and potassium persulfate.

[0045] The mixed solvent is ethanol solution and acetone mixed at a volume ratio of 13:7.

[0046] The auxiliary material is mixed with calcium nitrate and barium nitrate in a mass ratio of 6:5.

[0047] The added particles are silica.

[0048] A kind of preparation method of PVC lubricant, this preparation method comprises the steps:

[0049] (1) Put methyl stearate, auxiliary materials and additives into the reaction kettle at a mass ratio of 13:6:0.5, use nitrogen protection, preheat at 60°C for 50 minutes, and then add auxiliary materials and st...

Embodiment 2

[0054] The excipients are propyl trichlorosilane and vinyl trichlorosilane.

[0055] The additive is benzyltriethylammonium chloride.

[0056] The auxiliary material is potassium carbonate, water and zinc oxide mixed in a mass ratio of 7:13:2.

[0057] The mixed monomer is made by mixing acrylamide and maleic anhydride in a mass ratio of 16:2.

[0058] The initiator is any one of ammonium persulfate and potassium persulfate.

[0059] The mixed solvent is ethanol solution and acetone mixed at a volume ratio of 13:6.

[0060] The auxiliary material is mixed with calcium nitrate and barium nitrate in a mass ratio of 6:4.

[0061] The added particles are silica.

[0062] A kind of preparation method of PVC lubricant, this preparation method comprises the steps:

[0063] (1) Put methyl stearate, auxiliary materials and additives into the reaction kettle at a mass ratio of 13:5:0.4, use nitrogen protection, preheat at 60°C for 50 minutes, and then add auxiliary materials and st...

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Abstract

The invention belongs to the technical field of materials, and particularly relates to a preparation method of a PVC lubricant. According to the invention, methyl stearate, auxiliary materials and thelike are used as basic raw materials; through catalytic action by auxiliary materials, a better methyl glucoside stearic acid compound can be formed, and good dispersity and lubricating performance are realized; through polymerization with simultaneous additives, the heat resistance and the hydrolysis resistance are improved, plasticization properties is enahnced, the combination degree with plastic is improved, and finally, the additives are mixed with a mixed monomer; through polymerization by mixed monomers, formation of polyacrylamide is performed, chemical bond combination can be performed with a previously formed compound; metal ions are formed through the added auxiliary materials, constraint is conducted through the effect of acrylamide, a very good ionic state can be formed, stability is kept, precipitation and instability in a particle state are avoided, the metal ions can provide good lubricity and photothermal stability, and the gelation speed can be increased through cooperation of the metal ions and the mixed polymer.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a preparation method of a PVC lubricant. Background technique [0002] Due to the inherent molecular structure characteristics of polyvinyl chloride, when it is directly used as a raw material for extrusion processing to produce plastic products, its chemical properties have many defects, especially poor light and thermal stability. Without heating the stabilizer, polyvinyl chloride begins to decompose at 100°C, and when heated, it decomposes to release toxic hydrogen chloride gas, discoloration, and photo-oxidative decomposition occurs in the ultraviolet rays and oxygen in the sun, making the flexibility of the polyvinyl chloride less flexible and brittle. Obviously can't satisfy the use requirement of polyvinyl chloride products in life and industry. [0003] Therefore, in the production process of polyvinyl chloride material molding processing, people usually ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/26C08L27/06C08F220/56C08F222/06C08K3/36C08K5/1545C08K13/02
CPCC08F220/56C08K3/36C08K5/1545C08K13/02C08L27/06C08F222/06C08L33/26
Inventor 苏连吉孙新伟蔡金钟
Owner 苏连吉