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A kind of chlorinated polyethylene for PVC/HDPE compatibilization, preparation method and application thereof

A technology for chlorinated polyethylene and high-density polyethylene, which is applied in the field of chlorinated polyethylene preparation, can solve the problem that the solubilizer is difficult to meet the requirements, etc., and achieve the effects of obvious energy saving effect, excellent stress crack resistance and convenient operation.

Active Publication Date: 2017-09-12
WUHU RONGHUI CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, the common solubilizers on the market are difficult to meet the requirements. Therefore, it is imminent to research and develop a PVC / HDPE compatibilizer

Method used

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  • A kind of chlorinated polyethylene for PVC/HDPE compatibilization, preparation method and application thereof
  • A kind of chlorinated polyethylene for PVC/HDPE compatibilization, preparation method and application thereof
  • A kind of chlorinated polyethylene for PVC/HDPE compatibilization, preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0049] A kind of chlorinated polyethylene for compatibilization of PVC / HDPE, comprising the following substances in parts by weight:

[0050]

[0051] The high-density polyethylene is selected from YEC5515H high-density polyethylene produced by Yangzi Petrochemical, with a melting point of 134°C.

[0052] A preparation method for PVC / HDPE compatibilization chlorinated polyethylene, comprising the following steps:

[0053] (1) Mix 1.8kg of high-density polyethylene, 50kg of industrial pure water, 6g of dibenzoyl peroxide, 15g of hydrogenated castor oil and 70g of sodium polymethacrylate into a glass-lined reactor, and emulsify at 40°C for 40 minutes , heating up;

[0054] (2), adopt the two-stage chlorine flow method for chlorine flow; one stage of chlorine flow: within 1.5h, the reaction temperature is evenly raised from 70°C to 110°C, and at the same time, evenly feed chlorine gas accounting for 65% of the total chlorine flow weight;

[0055] The second stage of chlorine...

Embodiment 2

[0060] A kind of chlorinated polyethylene for compatibilization of PVC / HDPE, comprising the following substances in parts by weight:

[0061]

[0062] The high-density polyethylene is selected from YEC5515H high-density polyethylene produced by Yangzi Petrochemical, with a melting point of 134°C.

[0063] A preparation method for PVC / HDPE compatibilization chlorinated polyethylene, comprising the following steps:

[0064] (1), 2kg of high-density polyethylene, 55kg of industrially pure water, 7g of dibenzoyl peroxide, 18g of hydrogenated castor oil and 90g of sodium polymethacrylate are mixed and put into a glass-lined reactor, and emulsified at 30°C for 50 minutes, heat up;

[0065] (2), adopt the two-stage chlorine flow method for chlorine flow; one stage of chlorine flow: within 1.8h, the reaction temperature is evenly raised from 70°C to 110°C, and at the same time, evenly feed chlorine gas accounting for 75% of the total chlorine flow weight;

[0066] The second stag...

Embodiment 3

[0071] A kind of chlorinated polyethylene for compatibilization of PVC / HDPE, comprising the following substances in parts by weight:

[0072]

[0073] The high-density polyethylene is selected from YEC5515H high-density polyethylene produced by Yangzi Petrochemical, with a melting point of 134°C.

[0074] A preparation method for PVC / HDPE compatibilization chlorinated polyethylene, comprising the following steps:

[0075] (1) Mix 2.4kg of high-density polyethylene, 58kg of industrial pure water, 9g of dibenzoyl peroxide, 20g of hydrogenated castor oil and 90g of sodium polymethacrylate into a glass-lined reactor, and emulsify at 40°C for 30 minutes , heating up;

[0076] (2), adopt the two-stage chlorine flow method for chlorine flow; one stage of chlorine flow: within 2h, the reaction temperature is evenly raised from 70°C to 110°C, and at the same time, evenly feed chlorine gas that accounts for 80% of the total chlorine flow weight;

[0077] The second stage of chlorin...

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Abstract

The invention discloses a PVC / HDPE compatibilizing chlorinated polyethylene, a preparation method and an application thereof, comprising the following raw materials in parts by weight: high-density polyethylene 18-26, industrial pure water 500-600, initiator 0.06-0.09 , emulsifier 0.15‑0.2 and dispersant 0.7‑1. The preparation process adopts the two-stage chlorine flow method, and the chlorinated polyethylene for PVC / HDPE compatibilization is obtained by controlling the amount of chlorine flow and reaction time in different temperature sections (the temperature of the low temperature section is 70-110°C, and the temperature of the middle temperature section is 110-125°C). . Compared with the prior art, the two-stage chlorination method provided by the present invention is easy to control, convenient to operate, high in production efficiency and obvious in energy-saving effect. The prepared CPE is used as a compatibilization modifier of PVC / HDPE blend material, which expands the application range of CPE.

Description

technical field [0001] The invention relates to the field of preparation of chlorinated polyethylene, in particular to a chlorinated polyethylene for compatibilizing PVC / HDPE, a preparation method and an application thereof. Background technique [0002] With the development of science and technology, a single polymer material is often difficult to meet the requirements of use, and blending two or more polymers can make materials with different properties learn from each other and improve the use and processing performance of a single material, thereby Prepare blended materials with excellent comprehensive properties to meet different application requirements. [0003] In order to obtain a polymer blend with good properties, the components of the blend should be fully mixed uniformly to form a multiphase system that does not separate macroscopically and has a heterogeneous structure microscopically. In this microscopic multiphase system, each component provides macroscopic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F8/22C08F110/02C08L27/06C08L23/06
Inventor 洪虹汪爱兵程贤甦怀乐阴其文宋永海
Owner WUHU RONGHUI CHEM IND