Food grade plasticizing polrvinyl chloride (PVC) glove and preparation method thereof

A polyvinyl chloride, food-grade technology, applied in the field of food-grade plasticized polyvinyl chloride gloves and its preparation, to achieve the effect of improving processing stability

Active Publication Date: 2013-01-16
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is also stipulated that the above 8 kinds of plasticizers can only be used in materials contacting non-fat food, and shall not be used in materials contacting infant food

Method used

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  • Food grade plasticizing polrvinyl chloride (PVC) glove and preparation method thereof
  • Food grade plasticizing polrvinyl chloride (PVC) glove and preparation method thereof
  • Food grade plasticizing polrvinyl chloride (PVC) glove and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The mass ratio and parts of raw materials are: emulsion method PVC resin 100, liquid nitrile rubber (AN=40wt%, M n =2500) 80, Ca / Zn liquid composite stabilizer 0.8, organic calcium multiple complex stabilizer 0.4, antioxidant 10760.1, antioxidant 2640.1, n-hexane 10, acetone 15, butanone 10, tetrahydrofuran 15.

[0035] Preparation method: ①Add Ca / Zn liquid composite stabilizer and organic calcium multi-component composite stabilizer into a mixing tank, heat and stir at a stirring speed of 50r / min; when the temperature rises to 50°C, add antioxidants and continue stirring until the temperature rises When the temperature reaches 80°C, cool down the composite stabilized anti-oxidant functional additive containing the dissolved antioxidant before use. ② Add 100 parts of emulsion method PVC resin powder into the mixing tank, slowly inject 55 parts of liquid nitrile rubber, start stirring at a control speed of 300r / min, add the remaining 25 parts of liquid nitrile rubber aft...

Embodiment 2

[0037] The mass ratio and parts of raw materials are: emulsion method PVC resin 100, liquid nitrile rubber (AN=36wt%, M n =2000) 74, dioctyl adipate 3, dioctyl sebacate 3, Ca / Zn liquid composite stabilizer 0.6, organic magnesium multiple compound stabilizer 0.6, antioxidant 10100.1, antioxidant DLTP0.2 , Isooctane 10, n-heptane 5, acetone 20, tetrahydrofuran 10.

[0038] Preparation method: ①Add Ca / Zn liquid composite stabilizer and organomagnesium multi-component composite stabilizer into a mixing tank, heat and stir at a stirring speed of 80r / min; when the temperature rises to 60°C, add antioxidant 1010 and DLTP to continue stirring When the temperature rises to 120°C, cool down the compound stabilized anti-oxidant functional additive containing the dissolved antioxidant before use. ②Add 100 parts of emulsion method PVC resin powder into the mixing tank, then slowly inject 50 parts of liquid nitrile rubber, and start stirring at a control speed of 300r / min. After 12 minutes...

Embodiment 3

[0040] Raw material mass ratio and parts are: emulsion method PVC resin 100, liquid nitrile rubber (AN=33wt%, M n =2200) 65, polyester plasticizer polytrimethylene adipate (M n =1800, viscosity at 25°C=3Pa.s) 15, Ca / Zn liquid composite stabilizer 0.6, organic calcium multiple compound stabilizer 0.3, organic magnesium multiple compound stabilizer 0.3, antioxidant DSTP0.15, antioxidant DLTP0.15, isooctane 5, ethyl acetate 15, acetone 10, butanone 10, tetrahydrofuran 5.

[0041] Preparation method: ① Add Ca / Zn liquid composite stabilizer, organic calcium multi-component compound stabilizer, and organic magnesium multi-component compound stabilizer into the mixing tank and heat and stir at a stirring speed of 100r / min; when the temperature rises to 50°C, put Continue to stir the antioxidants DSTP and DLTP until the temperature rises to 85°C, and cool the composite stabilized antioxidant functional additive containing dissolved antioxidants before use. ② Add 100 parts of emulsio...

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Abstract

The invention discloses a food grade plasticizing polrvinyl chloride (PVC) glove and belongs to an environment-friendly food grade plasticizing PVC glove. The glove does not contain lead, cadmium and other toxic stabilizers, and phthalic acid ester plasticizer, has the advantages of high elasticity, high intensity and extremely low content of evaporation residues of n-heptane soluble substances, and can be used for the common food packaging industry, in particular contact fat type food industry with the high requirement, so that the application range of the food grade plasticizing PVC glove can be greatly widened. The food grade plasticizing PVC glove is prepared from the following raw materials in part by mass: 100 parts of emulsion method PVC resin, 40 to 80 parts of nitrile rubber liquid, 0 to 15 parts of vinyl terpolymer resin, 0 to 20 parts of polyester type plasticizer, 0 to 15 parts of aliphatic ester type plasticizer, 0.5 to 1.5 parts of compound stabilizer liquid, 0.1 to 0.5 part of antioxidant and 10 to 60 parts of organic solvent diluent.

Description

technical field [0001] The invention relates to a food-grade plastic glove and a preparation method thereof, in particular to a food-grade plasticized polyvinyl chloride glove and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is a low-cost general-purpose thermoplastic material, which has the advantages of flame retardancy, wear resistance, high strength, easy molding and good chemical stability, and is widely used in the production of hard products such as doors and windows, pipes and valves, as well as Production of artificial leather, film, wire and cable and other soft products. [0003] Due to the introduction of unsaturated double bonds, allyl groups, branch points and initiator residues into the molecular structure of PVC during the polymerization process, it is easily decomposed under the action of heat and oxygen during molding processing, resulting in poor thermal stability of PVC. The decomposition temperature of PVC (120~13...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L9/02C08L23/08C08L67/02C08K5/01C08K5/101C08K5/07C08K5/1535C08K5/11A41D19/00B65D65/46
Inventor 张军王庭慰朱文强孙俊王庆俊常建孙松林曹宇李壮宋冰
Owner NANJING UNIV OF TECH
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