Processing agent for polyolefin and alloy thereof, preparation method and application thereof

A processing aid and polyolefin technology, applied in the field of processing aids for polyolefin and its alloys and its preparation and application, can solve the problems of fluorine decomposition pollution, long effective time, difficult to clean, etc., and achieve easy operation, Short effective time and good viscosity reducing effect

Active Publication Date: 2011-04-27
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this processing aid has the disadvantages of long onset time, fluorine decomposition pollution, difficult cleaning, high cost, etc.
[0005] U.S. Patent US5015693 provides a processing aid compounded with polyethylene glycol and fluorine-containing rubber, which can increase the critical shear rate of the extrudate, but the processing aid also has the disadvantages of fluorine decomposition pollution, difficulty in cleaning, and high cost.
[0006] Chinese patent CN03135482 provides a processing aid compounded with polyethylene glycol and inorganic particles, which has a good effect on assisting the processing of polyolefins, but the aid will be decomposed due to the decomposition of polyethylene glycol at the processing temperature problem, resulting in discoloration of the final product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Processing agent for polyolefin and alloy thereof, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A beaker containing 100 grams of polyethylene glycol 6000 (Sinopharm Chemical Reagent Company, imported from Japan, molecular weight 5500-7000) was placed in a water bath and heated to 80 degrees. After polyethylene glycol is melted, put in 19.2 grams of phosphoric acid (analytical grade, Beijing Chemical Plant) and stir evenly with a glass rod. Thereafter, stir once every 10 minutes. After 60 minutes, take the beaker out of the water bath and place it at room temperature. After the melt solidifies, grind it to obtain a powder processing aid. (processing aid 1)

Embodiment 2

[0024] Replace 19.2 grams of phosphoric acid with 10.4 grams of boric acid (analytically pure, Beijing Chemical Plant), and all the other conditions are the same as in Example 1. (processing aid 2)

Embodiment 3

[0026] Put polyethylene glycol 6000 (Sinopharm Group Chemical Reagent Company, Japan import subpackage, molecular weight 5500-7000) 45 grams and polyethylene glycol 10000 (Beijing Chemical Reagent Company, Japan import subpackage) 25 grams into the beaker In a water bath, heat the water bath to 80°C, put 0.5 g of boric acid into the melted polyethylene glycol and stir evenly with a glass rod. Thereafter, stir once every 10 minutes. After 60 minutes, take the beaker out of the water bath and place it at room temperature. After the melt solidifies, grind it to obtain a powder processing aid. (processing aid 3)

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a processing agent for polyolefin and alloy thereof, comprising the following blended components: oligomer and polyprotic acid, wherein the molar ratio of the oligomer to the polyprotic acid is from 1:0.1 to 1:10; the oligomer is linear or short branched chain oligomer, of which the molecular weight is from 2000 to 20000, and two ends or one end of the oligomer is provided with polar end groups or a polar end group; and the polyprotic acid is organic polyprotic acid or inorganic polyprotic acid. The processing agent has the advantages of small volume of addition, short effective time, favorable viscosity effect and the like when used in the polyolefin and the alloy thereof. By adopting an acid modifying method of acid modification, the heat resistance of the oligomer is improved so that the decomposition problem is not existed under the normal processing temperature and the product can not fade.

Description

technical field [0001] The invention relates to a processing aid for polyolefin and its alloy, its preparation method and application. technical background [0002] With the development of my country's manufacturing industry, the demand for polyolefins is increasing year by year. In 2007, the national consumption of polyolefins reached 20 million tons. With the advancement of catalysts and polymerization processes, some high-performance polyolefins, such as metallocene polyolefins, ultra-high molecular weight polyethylene, and polybutene, have been able to achieve large-scale industrial production, but due to the poor processability of these polyolefins, limit their large-scale application. [0003] Under the existing technical conditions, the use of processing aids is the best solution to these problems. Processing aids are a general term for several types of materials used to improve the processing and handling properties of high molecular weight polymers, mainly in the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/00C08L71/08C08L67/00C08K3/32C08K3/38C08K5/5415
Inventor 杨庆泉张师军张薇张丽英刘涛张浩尹华邵静波王小兰李魁吕明福邹浩李杰张洪波徐萌陈力吕芸
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap