Preparation method of aqueous emulsion type polyvinyl chloride resin non-toxic terminator

A technology of polyvinyl chloride and terminator, which is applied in the field of preparation of water-emulsion type polyvinyl chloride resin non-toxic terminator, which can solve the problem of insignificant anti-thermal and oxygen aging effect of resin, relatively toxic ATSC substances, large ATSC substances, etc. problems, achieve good synergistic effect, inhibit thermal degradation reaction and early coloring of aging, high whiteness and aging whiteness effect

Inactive Publication Date: 2012-08-15
吉林市合润化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008]Acetone thiosemicarbazone (ATSC) is a terminator with excellent performance, which can quickly react with free radicals and initiators. Chain molecules, and then improve the thermal stability of the product has a certain effect, but the effect on the thermal and oxidative aging resistance of the resin is not obvious
[0009] The toxicity of bisphenol A and ATSC products and the negative effects of PVC terminators have been recognized by people, and the use is limited due to the toxic effect
[0010] Chinese patent CN101735357A discloses a method for improving the aging whiteness of polyvinyl chloride resin, wherein acetone thiosemicarbazone is used as a terminator, tert-butyl-terephthalene Phenol is used as an anti-fish eye agent, and water emulsion type antioxidant EB44-34 is used as a chain terminator. They are mixed and compou

Method used

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  • Preparation method of aqueous emulsion type polyvinyl chloride resin non-toxic terminator
  • Preparation method of aqueous emulsion type polyvinyl chloride resin non-toxic terminator

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] Example 1

[0044] Mix 250g of styrenated o-tert-butylphenol product, 2.5g of N,N-bis(octadecyl)hydroxylamine, 16g of diethylhydroxylamine, and 12.5g of tin mercaptide into a 1000mL beaker and heat to 60 ℃, stir and melt evenly to make a compound liquid terminator; when the temperature drops to 40℃, add 15g of nonylphenol polyoxyethylene ether, use SHW400R high-shear mixing emulsifier, stirring speed 3500~4000 rpm, homogeneous Pre-emulsify and stir for 10 minutes, mix and dissolve 60g of 25% potassium abietate and 200g of deionized water, and slowly add it to the compound liquid terminator under high shear. emulsified for 30-40 minutes; after emulsification, slowly reduce the shear speed, and lower the temperature to 20-25°C at a low shear speed to obtain 2# water emulsion type polyvinyl chloride resin non-toxic terminator product (2# terminator ).

Example Embodiment

[0045] Example 2

[0046] Mix 250g of styrenated o-tert-butylphenol product, 4g of dibenzylhydroxylamine, 10g of diethylhydroxylamine, and 20g of tin mercaptide into a 1000mL beaker, heat to 80°C, stir and melt evenly, and make a compound type Liquid terminator; when the temperature drops to 40°C, add 17g nonylphenol polyoxyethylene ether, use a SHW400R high-shear mixing emulsifier, stir at a speed of 3500~4000 rpm, homogeneously pre-emulsify and stir for 10 minutes, and mix 80g 25% Potassium rosinate and 210g deionized water are mixed and dissolved, and slowly added to the compound liquid terminator under high shear. Reduce the shear rate and lower the temperature to 20-25°C at a low shear rate to obtain 1# water emulsion type polyvinyl chloride resin non-toxic terminator product (1# terminator).

Example Embodiment

[0047] Example 3

[0048] 250g of styrenated o-tert-butylphenol product, 12.5g of N,N-bis(hydrogenated tallow) amine prepared by direct oxidation of N,N-dialkylhydroxylamine product, 20g of diethylhydroxylamine, 37g of methyl mercaptan Add the tin into a 1000mL beaker after mixing, heat to 90°C, stir and melt evenly, and make a compound liquid terminator; when the temperature drops to 40°C, add 24g of isotridecanyl polyoxyethylene ether, and use a SHW400R high-shear mixing emulsifier , the stirring speed is 3500~4000 rpm, homogeneous pre-emulsification and stirring for 10 minutes, 120g 25% potassium abietate and 200g deionized water are mixed and dissolved, and slowly added to the composite liquid terminator under high shear, adding After completion, homogeneously emulsify at 3500~4000 rpm for 30~40 minutes; after emulsification, slowly reduce the shear speed, and lower the temperature to 20-25°C at a low shear speed to obtain 3# water emulsion type polyvinyl chloride Resin...

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PUM

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Abstract

The invention relates to a preparation method of an aqueous emulsion type polyvinyl chloride resin non-toxic terminator and specifically relates to the technical fields of production technologies of chemical products, compounding of functional auxiliaries and preparation of aqueous emulsion of organic matter products. The product disclosed by the invention is taken as a terminator during the technological process of producing a general type PVC (polyvinyl chloride) resin product through a suspension method; and during a polymerization reaction process, vinyl chloride monomers are selected to be added during the period that the transformation rate is 70-85% so as to get the PVC resin product with stable performance. O-tert-butyl phenol and styrene are taken as raw materials, and a styrenated o-tert-butyl phenol product is prepared by catalytic alkylation reaction; the styrenated o-tert-butyl phenol product, a hydroxylamine compound, diethylhydroxyamine and methyltin mercaptide are taken as active ingredients of the non-toxic terminator, and the compound terminator is prepared by compounding; and the aqueous emulsion type non-toxic terminator product which is prepared by an aqueous emulsion preparation technology has the characteristics of simple production process, easiness in obtainment of the raw materials, low using cost of the product and convenience in industrial popularization and application.

Description

technical field [0001] The invention relates to a preparation method of an aqueous emulsion type polyvinyl chloride resin non-toxic terminator, which is used for improving the stability of general-purpose polyvinyl chloride (PVC) resin products by suspension method. It specifically involves the production technology of chemical products, the compounding of functional additives, and the preparation of water emulsion of organic products. Background technique [0002] Using o-tert-butylphenol and styrene as raw materials, catalyzed alkylation reaction to prepare styrenated o-tert-butylphenol liquid antioxidant products, using styrenated o-tert-butylphenol liquid antioxidant, hydroxylamine compound, formazan Tin mercaptide is an active ingredient of the non-toxic terminator, and a water-emulsion type polyvinyl chloride resin non-toxic terminator product is prepared by using the water emulsion preparation technology. [0003] Aqueous phase suspension polymerization is the main m...

Claims

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Application Information

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IPC IPC(8): C08F114/06C08F2/42
Inventor 杜飞马龙郭静波
Owner 吉林市合润化工有限责任公司
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