Unlock instant, AI-driven research and patent intelligence for your innovation.

Waste paper sludge composite filler and preparation method and application thereof

A technology of filler and sludge, which is applied in the field of waste paper sludge composite filler and its preparation, can solve the problems of not being able to fully utilize sludge, the effect of sludge surface modification is not very good, limitations, etc., and achieve effective It is beneficial to environmental protection, the synthesis method is simple and reliable, and the effect of improving the modification effect

Inactive Publication Date: 2011-01-19
SUN YAT SEN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN1156126A mentions the use of organic matter such as lignin in sludge and coarse pulp slag or waste paper pulp in pulping and papermaking to make fiberboards. This method fails to fully utilize the sludge and does not pretreat the sludge
Chinese patent CN1282748A, Chinese patent CN1385465A and Chinese patent CN1406679A disclose the preparation of papermaking sludge fiber composite filler and the method as plastic filler. The organic and inorganic composite, fiber and powder composite composite filler, its disadvantage is that the effect of sludge surface modification is not very good, so its application is limited

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

[0024] (1) The waste paper sludge is dried, pulverized, screened and classified to obtain sludge powder of 80-200 mesh.

[0025] (2) Surface modification of waste paper sludge powder: 100 parts by weight of sludge powder are added to 100 mL of a mixed solvent of acetone and isopropanol at a volume ratio of 1:1, and 1% of the weight of sludge powder is added with silane The coupling agent KH570, after stirring evenly, reacted at 50°C for 90 minutes, separated and dried the sludge powder, and obtained the waste paper sludge composite filler.

[0026] (3) by weight, 100 parts of nitrile rubber, 30 parts of waste paper sludge composite filler, 5 parts of zinc oxide, 2 parts of sulfur, 1 part of stearic acid and 2 parts of accelerator dithiodibenzothiazole , using a two-roll mill for mixing, the roll temperature is controlled at (50±5)°C during mixing, and the roll distance is about 1.4mm. Use a flat vulcanizer to vulcanize the rubber mixing, the vulcanization temperature is 150°C...

Embodiment 2

[0028] (1) The waste paper sludge is dried, pulverized, screened and classified to obtain sludge powder of 80-200 mesh.

[0029] (2) Surface modification of waste paper sludge powder: Add 100 parts by weight of sludge powder to 100 mL of a mixed solvent of acetone and isopropanol at a volume ratio of 1:1, and add 3% silane by weight of the sludge powder The coupling agent KH580, after stirring evenly, reacted at 60°C for 90 minutes, separated and dried the sludge powder, and obtained the waste paper sludge composite filler.

[0030] (3) By weight, 100 parts of nitrile rubber, 30 parts of waste paper sludge composite filler, 5 parts of zinc oxide, 1.5 parts of sulfur, 2 parts of stearic acid and 1 part of accelerator dithiodibenzothiazole , using a two-roll mill for mixing, the roll temperature is controlled at (50±5)°C during mixing, and the roll distance is about 1.4mm. Use a flat vulcanizer to vulcanize the rubber mixing, the vulcanization temperature is 150°C, the pressure...

Embodiment 3

[0032] (1) The waste paper sludge is dried, pulverized, screened and classified to obtain sludge powder of 80-200 mesh.

[0033] (2) Surface modification of waste paper sludge powder: Add 100 parts by weight of sludge powder to 100 mL of a mixed solvent of acetone and isopropanol at a volume ratio of 1:1, and add titanium that accounts for 1% of the weight of the sludge powder. After the acid ester coupling agent is stirred evenly, it is reacted at 70°C for 90 minutes, and the sludge powder is separated and dried to obtain a waste paper sludge composite filler.

[0034] (3) By weight, 100 parts of nitrile rubber, 30 parts of waste paper sludge composite filler, 5 parts of zinc oxide, 2 parts of sulfur, 1 part of stearic acid and 1 part of accelerator dithiodibenzothiazole , using a two-roll mill for mixing, the roll temperature is controlled at (50±5)°C during mixing, and the roll distance is about 1.4mm. Use a flat vulcanizer to vulcanize the rubber mixing, the vulcanization...

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 discloses a waste paper sludge composite filler and a preparation method thereof as well as application of the waste paper sludge composite filler to a nitrile rubber product. The waste paper sludge is subjected to pre-treatment processes such as drying, thinning and so on, and the surface of the waste paper sludge is modified through a coupling agent to obtain the waste paper indulge composite filler with composite organic and inorganic; the composite filler can be used as a filling reinforcing agent of rubber, and can not only solve the problem of reasonable treatment of the waste paper sludge more effectively, but also further reduce the cost to produce a rubber product with excellent performance. With modification of the surface of the waste paper sludge by a wet method,the method improves hydrophobicity of the sludge, has simple and reliable synthesis method, carries out surface modification to sludge powder by the coupling agent, introduces hydrophobic groups to the surface of the sludge powder, and improves modification effect of the surface of the sludge. The invention effectively solves the problem of reasonable treatment of the waste paper sludge powder, contributes to environmental protection and benefits mankind.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a waste paper sludge composite filler, a preparation method thereof and an application in rubber preparation. Background technique [0002] Today, when resources are increasingly scarce and environmental pollution is becoming more and more serious, it is a common consensus and consistent practice in the world today to reduce the consumption of fiber raw materials by recycling waste paper. Over the past 10 years, countries around the world have attached great importance to the utilization of waste paper resources, and the recycling rate and utilization rate of waste paper have increased year by year. A large amount of solid waste will be produced in the process of waste paper recycling. At present, the main methods of waste disposal in the world are landfill and incineration, but both of them have the disadvantages of occupying a large amount of land r...

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 Patents(China)
IPC IPC(8): C08K11/00C08L9/02C08K13/08B29B7/72B29B13/00
Inventor 李玮梁立张黎明王庆华许杰东曾庆聪
Owner SUN YAT SEN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com