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Disposable butadiene-acrylonitrile rubber modified PVC glove and preparation method thereof

A technology of nitrile rubber and liquid nitrile rubber, used in gloves, other household appliances, household components, etc., can solve the problems of poor solvent resistance, uneven vulcanization, poor elasticity of gloves, etc., to achieve excellent wearing comfort and good hand feel , The effect of high solvent resistance

Active Publication Date: 2020-10-13
江西中红普林医疗制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] China's existing patents related to gloves such as CN201110236514, CN201210339951, and CN201210043706, among which CN201110236514 and CN201210339951 patents all use 25-40 parts of nitrile rubber, and adopt sulfur and TMTD / CZ as the vulcanization system. From the perspective of their technology, what they use is A large amount of liquid nitrile rubber, and TMTD has been banned by the European Union, there are problems of uneven vulcanization caused by uneven distribution of accelerator sulfur in the system, and the risk of accelerator and sulfur precipitation
Although patent CN201210043706 discloses the addition of a small amount of liquid nitrile rubber, the addition of nitrile rubber is only a physical addition and does not participate in the reaction, failing to chemically cross-link with PVC molecules, resulting in poor elasticity of the gloves and comfortable wearing Poor performance, poor solvent resistance

Method used

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  • Disposable butadiene-acrylonitrile rubber modified PVC glove and preparation method thereof
  • Disposable butadiene-acrylonitrile rubber modified PVC glove and preparation method thereof
  • Disposable butadiene-acrylonitrile rubber modified PVC glove and preparation method thereof

Examples

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Effect test

Embodiment 1

[0040] Example 1: A preparation method of disposable nitrile rubber modified PVC gloves, including the following steps:

[0041] Add 100 parts of pvc paste resin, 60 parts of plasticizer (dioctyl phthalate (DOP), 1 part of stabilizer (calcium stearate), 0.05 parts of vulcanizing agent (di-tert-butyl permeate) into the stirred tank Cumene oxide), 5 parts of liquid nitrile rubber and 20 parts of viscosity reducer (2,2,4-trimethyl-1,3-pentanediol diisobutyrate: hydrocarbon solvent oil=3:1 ), turn on the agitator, stir quickly (speed at 1000-1500r / min) for 2 hours, after filtering the prepreg, use a pump to pump it into the storage tower for vacuum degassing for 36 hours and save it for use.

[0042] The ceramic hand mold enters the PVC prepreg emulsion tank for pre-soaking for 6 seconds. After soaking, it is plasticized at 200°C for 8 minutes, and then the nitrile rubber is modified by rolling lip, surface treatment, rolling lip, and cooling packaging. Sexual PVC gloves. The glove f...

Embodiment 2

[0043] Example 2: A preparation method of disposable nitrile rubber modified PVC gloves, including the following steps: pass 5 parts of solid nitrile rubber through a cutting machine to cut into particles with a maximum size of no more than 0.8 cm, and add them to a stirring tank 35 parts of plasticizer, high-speed stirring at 40 degrees to dissolve for 72 hours; then add 100 parts of PVC paste resin, 35 parts of plasticizer (dioctyl phthalate (DOP), 1 part of stabilizer (stearin) into the reactor Calcium acid), 0.05 parts of vulcanizing agent (di-tert-butyl cumene peroxide), 20 parts of viscosity reducer (2,2,4-trimethyl-1,3-pentanediol diisobutyrate: hydrocarbon Solvent oil=3:1), stir quickly (speed at 1000-1500r / min) for 2 hours, and then use a pump to pass it through the filter device and input it to the storage tower for vacuum deaeration (still deaeration, Defoamer (defoaming) for 36h to be used.

[0044] The ceramic hand mold enters the PVC prepreg emulsion tank for pre-s...

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Abstract

The invention relates to a preparation method of a disposable butadiene-acrylonitrile rubber modified PVC glove. The preparation method comprises the following steps: preparing a prepreg from nitrilerubber, a vulcanizing agent, a heat stabilizer, PVC paste resin and a plasticizer together and then preparing the PVC glove from the prepreg, wherein the vulcanizing agent is a peroxide vulcanizing agent. According to the invention, the amount of butadiene-acrylonitrile rubber used in the invention is low, the peroxide is used as the vulcanizing agent, the problem of non-uniform vulcanization caused by non-uniform distribution of the accelerator sulfur in the system is avoided, and the peroxide is used as the vulcanizing agent, so chemical bond connection between the butadiene-acrylonitrile rubber and PVC is more easily established; no accelerator or sulfur precipitation risk exists; the produced PVC glove is good in hand feeling, tensile strength is larger than 13 MPa, elongation is larger than 500%, and the solvent resistance degree of the PVC glove is higher than the solvent resistance degree of common PVC gloves.

Description

Technical field [0001] The invention relates to a preparation method of a disposable nitrile rubber modified PVC glove product, which belongs to the technical field of polymer processing. Background technique [0002] At present, disposable gloves mainly include latex gloves, nitrile gloves, PVC gloves and PE gloves. PVC gloves are highly recognized by consumers in developed countries due to their good protective properties and excellent cost performance. However, a certain scale of market has not yet formed in developing countries. With the economic development of developing countries, it is foreseeable that PVC gloves will gradually be promoted and applied. China is the world's largest developing country and the world's PVC glove production base. As people's consumption concepts and consumption habits change, the application of disposable PVC gloves in China will become inevitable. This potential consumer demand has been developed, and the new market capacity will be quite a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L9/02C08L91/00C08K5/12C08K5/098C08K5/14C08K5/103B29C41/14A41D19/015B29L31/48
CPCC08L27/06B29C41/14A41D19/0055C08L2205/03B29L2031/4864C08L9/02C08L91/00C08K5/12C08K5/098C08K5/14C08K5/103
Inventor 马保军王振山谢建强
Owner 江西中红普林医疗制品有限公司
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