Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing rubber master batch

A masterbatch and styrene-butadiene rubber technology, applied in the field of anti-corrosion materials and preparation, can solve the problems of different cold resistance of pressure-sensitive adhesives, and achieve the effects of reducing the amount of related additives, good anti-precipitation effect, chemical inertness, and good compatibility.

Active Publication Date: 2012-08-15
PETROCHINA CO LTD
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But different pressure sensitive adhesives have different cold resistance

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: The parts by weight of each component of the masterbatch are:

[0034] 1. SBR: 13.5 parts;

[0035] 2. Natural rubber: 1.5 parts;

[0036] 3. White clay, (average particle size 5-10μm): 10.4 parts;

[0037] 4. Light calcium carbonate, average particle size: 1~5μm: 11.5 parts;

[0038] 5. No. 40 engine oil: 3 parts;

[0039] 6. Ethyl acetate: 1.5 parts;

[0040] 7. Dioctyl phthalate: 2.5 parts.

[0041] The preparation method of masterbatch: First, add seven components of styrene-butadiene rubber, natural rubber, kaolin, light calcium carbonate, No. 40 motor oil, ethyl acetate, and dioctyl phthalate into LHY- 15 Horizontal ribbon mixer, mix for 1 to 2 hours at 14 rpm / h, and mix evenly; then, put it in a rubber roller compactor for 5-6 times; finally, form a mother with a thickness of 1.5-2mm glue.

[0042] Effect: The cold resistance of the pressure-sensitive adhesive produced by the masterbatch produced by the method of the invention is increased by 8°C. Improve the per...

Embodiment 2

[0043] Example 2: The parts by weight of the components of the masterbatch are:

[0044] 1. SBR: 13.3 parts;

[0045] 2. Natural rubber: 1.5 parts;

[0046] 3. White clay, (average particle size 5-10μm): 9.9 parts;

[0047] 4. Light calcium carbonate, average particle size: 1~5μm: 12 parts;

[0048] 5. No. 40 oil: 3.5 parts;

[0049] 6. Ethyl acetate: 1.5 parts;

[0050] 7. Dioctyl phthalate: 2.2 parts.

[0051] The preparation method of the masterbatch is the same as in Example 1.

[0052] Effect: The cold resistance of the pressure-sensitive adhesive produced by the masterbatch produced by the method of the invention is increased by 10°C. Improve the performance of pressure-sensitive adhesive for anti-corrosion tape to make its water vapor transmission rate 0.40mg / cm 2 , Improve its anti-corrosion and waterproof effect, water absorption rate is 0.29%.

Embodiment 3

[0053] Example 3: The parts by weight of each component of the masterbatch are:

[0054] 1. SBR: 13 parts;

[0055] 2. Natural rubber: 1.5 parts;

[0056] 3. White clay, (average particle size 5-10μm): 10 parts;

[0057] 4. Light calcium carbonate, average particle size: 1~5μm: 11.8 parts;

[0058] 5. No. 40 oil: 3.2 parts;

[0059] 6. Ethyl acetate: 1.8 parts;

[0060] 7. Dioctyl phthalate: 2.4 parts.

[0061] The preparation method of the masterbatch is the same as in Example 1.

[0062] Effect: The cold resistance of the pressure-sensitive adhesive produced by the masterbatch produced by the method of the invention is increased by 12°C. Improve the performance of pressure-sensitive adhesive for anti-corrosion tape to make its water vapor transmission rate 0.37mg / cm 2 , Improve its anti-corrosion and waterproof effect, water absorption rate is 0.27%.

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
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing rubber master batch, which is applied to the technical field of anti-corrosive pipes. The rubber master batch is prepared from the following components in parts by weight: 12.5-13.5 parts of styrene butadiene rubber, 1.5-1.6 parts of nature rubber, 9.5-10.5 parts of kaolin, 11.5-12.5 parts of light calcium carbonate with average grain diameter of 1-5 microns; 3.0-3.5 parts of No. 40 engine oil, 1.5-2.0 parts of ethyl acetate and 2.0-2.5 parts of dioctyl phthalate. The method comprises the following step of: putting mixed raw materials into a rubber grinding machine to be ground to form the rubber master batch with the thickness of 1.5-2mm. The method for preparing the rubber master batch has the advantages of improving cold resistance of pressure-sensitive adhesive produced by adopting the rubber master batch to 8-12 DEG C, modifying the performance of the pressure-sensitive adhesive carried on anti-corrosive rubber, enabling the water vapor transmittance to be lower than 0.45mg / cm<2>, improving the anti-corrosive waterproof effect and enabling the water absorption to be lower than 0.30%.

Description

Technical field [0001] The invention relates to the technical field of pipeline anticorrosion, in particular to an anticorrosive material and a preparation method. It is a masterbatch and its preparation method. Background technique [0002] At present, in the anti-corrosion construction of oilfield production pipe networks, anti-corrosion tape is often used for anti-corrosion and waterproof treatment, and the anti-corrosion tape needs to be evenly sprayed with pressure-sensitive adhesive made of masterbatch. But different pressure-sensitive adhesives have different cold resistance. [0003] The article "Rubber Tips: Masterbatch and Paste" published in the 7th issue of 2009 in the "World Rubber Industry" article pointed out that the masterbatch is to ensure the uniform dispersion of the rubber compound, reduce dust flying, and improve rubber mixing hygiene. [0004] Publication number CN101084264, published on December 5, 2007, the patent "Natural rubber masterbatch and its manufac...

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): C09J109/06C09J107/00C09J11/04
Inventor 付亚荣范忠钰李冬青曹瑾胡雄翼付茜李东昊付丽霞田中太于志铭令文学
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com