Compound rubber modified styrene series resin composition and preparation method thereof

A styrene resin and rubber modification technology, which is applied in the field of ultrafine powder rubber and cis-butadiene rubber modified styrene resin composition and its preparation field, can solve the problems of particle size control and complex polymerization process, and achieve good The effect of drop impact strength, low hygroscopicity and simple preparation method

Inactive Publication Date: 2011-05-11
CHINA PETROLEUM & CHEM CORP +1
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, in order to form rubber particles of different particle sizes in the po

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
  • Compound rubber modified styrene series resin composition and preparation method thereof
  • Compound rubber modified styrene series resin composition and preparation method thereof
  • Compound rubber modified styrene series resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] 1. Preparation of styrene butadiene rubber powder:

[0035] Place a commercially available styrene-butadiene latex (produced by Yanshan Petrochemical, brand: XSBRL-54B1) with a solid content of 50wt% in a container, and add 75g acrylic acid isooctanoic acid dropwise under stirring. After the dropwise addition is completed, continue stirring for one hour, and then use The cobalt source is irradiated with a dose of 2.5 Mrad and a dose rate of 50 Gy / min. The irradiated latex is spray-dried through a spray dryer. The inlet temperature of the spray dryer is 140℃~160℃, and the outlet temperature is 40℃~60℃. The dried carboxyl styrene butadiene rubber powder is collected in a cyclone separator to obtain Free-flowing fully vulcanized styrene butadiene rubber powder. The measured average particle size of the powder rubber is about 150 nm, the gel content is 92.6%, and the swelling index is 7.6.

[0036] 2. Preparation of polystyrene composition:

[0037] The above-...

Example Embodiment

[0041] Example 2

[0042] Add mineral oil (63#, produced by Yanshan Petrochemical) to the styrene-butadiene rubber powder prepared in Example 1 at the ratio of mineral oil: powder rubber = 0.2:1, stir evenly with a mixer, and leave it for 24 hours to fully absorb, and take the oil-filled The latter rubber was 14.6 g, and the other conditions were the same as in Example 1. The physical properties of the final composition obtained are listed in Table 1.

Example Embodiment

[0043] Example 3

[0044] Add mineral oil (63#, produced by Yanshan Petrochemical) to the styrene-butadiene rubber powder prepared in Example 1 at the ratio of mineral oil: powder rubber = 0.5:1, stir evenly with a mixer, leave it for 24 hours to fully absorb, and take oil-filled The latter rubber was 17.6 g, and the other conditions were the same as in Example 1. The physical properties of the final composition obtained are listed in Table 1.

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

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a rubber modified styrene series resin composition. The total content of rubber is 1 to 40 weight percent, and the rubber consists of superfine powder rubber and polybutadiene rubber. The composition is prepared by the following method of: adding styrene series polymer monomer or styrene series polymer monomer and unsaturated monomer, the superfine powder rubber and the polybutadiene rubber into a reaction kettle, stirring the mixture uniformly, and then performing polymerization. The prepared compound rubber modified styrene series composition has the advantages of insulation, easiness in forming and processing, low moisture absorption and the like, and has good tensile strength, cracking resistance and breakdown resistance.

Description

technical field [0001] The present invention relates to a composite rubber modified styrene resin composition and its preparation method, more specifically, the present invention relates to a superfine powder rubber and butadiene rubber modified styrene resin composition and its preparation method. Background technique [0002] Polystyrene (PS) has a wide range of applications in various fields of industry and civil use because of its abundant raw materials, cheap price, easy molding process, low hygroscopicity and good transparency. It is a general-purpose plastic with a large amount of consumption. However, due to the internal structure of polystyrene molecular chains, its mechanical properties are lacking, such as insufficient strength, poor toughness, etc., especially showing brittle behavior. This largely limits its scope of application. [0003] The traditional rubber-toughened polystyrene method mostly adopts butadiene rubber to be dissolved in styrene monomer to ca...

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
IPC IPC(8): C08F279/02C08F2/02C08F2/06
Inventor 王洪涛史新波斯维张晓尘
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