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

A kind of silica/natural rubber latex composite adhesive film and its preparation method and application

A technology of natural latex and composite rubber, applied in the field of silica/natural latex composite film and its preparation, can solve the problems of reducing the binding effect of latex particles, failing to achieve reinforcement effect, failing to achieve reinforcement effect, etc. Excellent elastic properties, good elasticity, and the effect of improving tear strength

Active Publication Date: 2019-11-12
LINGNAN NORMAL UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The carbon black particles cannot directly contact with the latex particles, but are dispersed around the latex particles, reducing the binding effect with the latex particles, not only failing to achieve the reinforcing effect, but degrading the performance of the film
Although a small amount of fine silica can have a certain reinforcing effect on natural rubber latex, but in terms of comprehensive performance, its reinforcing effect cannot meet the expected requirements of practical applications.

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
  • A kind of silica/natural rubber latex composite adhesive film and its preparation method and application
  • A kind of silica/natural rubber latex composite adhesive film and its preparation method and application
  • A kind of silica/natural rubber latex composite adhesive film and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The raw material that the silica / natural rubber latex composite film that present embodiment prepares adopts is: solid content is 20% silica slurry 20g, and solid content is 61% natural latex 328g, and concentration is the tensio-active agent CTAB of 10g / L 12mL aqueous solution; the compounding agent is composed of sulfur, zinc diethyldithiocarbamate and zinc oxide in a weight ratio of 3:2:1, and the dosage is 3% of the weight of the dry rubber latex; the silica used is composed of fine scale-like low-temperature Composed of quartz and lamellar illite, the silica slurry is a silica slurry that has been kept in a slurry state since the silica ore was ground into a slurry.

[0041] Divide each of the above-mentioned raw materials into two parts equally, and prepare compound film and pre-vulcanized film according to the following steps:

[0042] (1) Adjust the pH value of 10 g of silica slurry with a solid content of 20% to 10 with potassium hydroxide solution, add it to 1...

Embodiment 2

[0047] The raw material that the silica / natural latex composite film that present embodiment prepares adopts is: solid content is 32.8g of silica slurry of 36.7%, and solid content is 61% natural latex 328g, and concentration is the surfactant CTAB of 10g / L Aqueous solution 36mL; The compounding agent is sulfur, zinc diethyldithiocarbamate and zinc oxide in a weight ratio of 3:2:1, and the dosage is 3% of the weight of the dry rubber latex. The silica used is composed of fine scale-like low temperature Composed of quartz and lamellar illite, the silica slurry is a silica slurry that has been kept in a slurry state since the silica ore was ground into a slurry.

[0048] Each of the above-mentioned raw materials is equally divided into two parts, and the preparation method is the same as in Example 1.

Embodiment 3

[0050] The raw material that the silica / natural latex composite film that present embodiment prepares adopts is: solid content is 54g of silica slurry of 36.7%, and solid content is 61% natural latex 328g, and concentration is the surfactant CTAB aqueous solution of 10g / L 40mL; the compounding agent is composed of sulfur, zinc diethyldithiocarbamate and zinc oxide in a weight ratio of 3:2:1, and the dosage is 3% of the weight of the dry rubber latex. The silica used is made of fine scaly low-temperature quartz Composed of lamellar illite, the silica slurry is a silica slurry that has been kept in a slurry state since the silica ore was ground into a slurry.

[0051] Each of the above-mentioned raw materials is equally divided into two parts, and the preparation method is the same as in Example 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
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses application of a silica mineral material as a reinforcing agent in a natural latex composite adhesive film. The silica mineral material is prepared from fine scale-like low-temperature quartz and lamellar illite; the composite adhesive film is prepared by removing impurities of the silica mineral material, carrying out high temperature activation treatment, crushing, addingwater into the crushed material and grinding into thick liquid to obtain silica slurry, then adjusting the silica slurry to be alkaline, and mixing the silica slurry with natural latex. The inventionalso discloses the silica / natural latex composite adhesive film as well as a preparation method and application thereof; the silica / natural latex composite adhesive film is prepared from the following raw materials in parts by dry matter mass: 0.5-10 parts of the silica mineral material and 100 parts of the natural latex. By utilizing the unique morphology and crystal structure of the silica mineral material, the preparation method provided by the invention enables the prepared silica / natural latex composite adhesive film to not only maintain the excellent elastic property of natural rubber,but also have good tensile property and tear resistance, so that the silica / natural latex composite adhesive film can be used for producing sports fitness equipment such as chest developers, labor protection appliances, and natural latex products such as rubber tubes.

Description

technical field [0001] The invention relates to the field of natural rubber latex composite film, and more specifically relates to a silica / natural latex composite film and its preparation method and application. Background technique [0002] Natural rubber latex has excellent comprehensive properties, such as high elasticity, high strength, high elongation, wear resistance, tear resistance, impact resistance, oil resistance, acid and alkali resistance, corrosion resistance, and good insulation, sealing, flexibility sex and adhesiveness. Due to its outstanding comprehensive performance, it is widely used in various fields such as industry, agriculture, national defense, transportation, and medical care. However, its application is limited due to its poor tensile strength and tear resistance. To address this deficiency, it is usually modified with a reinforcing agent. [0003] At present, the most important reinforcing agent is carbon black, but when the natural latex is i...

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): C08L7/02C08K13/04C08K7/00C08K5/39C08K3/22C08J5/18
Inventor 陈静潘荣楷王赟席艳丽马琳
Owner LINGNAN NORMAL UNIV