Vacuum bag sealing adhesive tape applicable under room temperature to 220 DEG C, and preparation method thereof

A sealing strip and vacuum bag technology, which is applied in the field of vacuum bag sealing strip and its preparation, can solve the problems of low temperature of the sealing strip, difficult peeling of the sealing strip, low viscosity of the sealing strip, etc., and achieve air tightness Good, excellent sealing, high tensile and shear strength effect

Active Publication Date: 2015-10-28
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem of low operating temperature of the existing sealing strips, enable long-term sealing at 220°C and provide a pressure of about 1 atm; solve the problem of low viscosity of

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
  • Vacuum bag sealing adhesive tape applicable under room temperature to 220 DEG C, and preparation method thereof
  • Vacuum bag sealing adhesive tape applicable under room temperature to 220 DEG C, and preparation method thereof
  • Vacuum bag sealing adhesive tape applicable under room temperature to 220 DEG C, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0078] 2. Example 2

[0079] Chlorinated butyl rubber is 100 parts by mass, white carbon black is 70 parts by mass (white carbon black is first treated in 1% by mass KH550 alcohol solution, crushed and dried), and medium molecular weight aluminum polyisobutylene is 100 parts by mass , 8 parts by mass of tert-butyl phenolic resin, 5 parts by mass of zinc oxide, 2 parts by mass of accelerator DM, 1 part by mass of accelerator TMTD, 0.5 parts by mass of anti-scorching agent magnesium oxide, 3 parts by mass of calcium oxide Copies.

[0080] Put the chlorinated butyl rubber in a two-roll rubber mixer with a roller distance of about 1mm, masticate for 10 minutes, add half of the filler, and mix evenly; add the above-mentioned mixture to the kneader at a temperature of 90-100℃, Add the pre-mixed vulcanizing agent, activator, anti-scorching agent, water absorbing agent and the other half of the filler, and knead uniformly; add polyisobutylene, mix uniformly, and discharge; park for 48h; h...

Example Embodiment

[0082] 3. Example 3

[0083] Chlorinated butyl rubber is 100 parts by mass, methylated silica is 20 parts by mass, kaolin is 50 parts by mass, medium molecular weight aluminum-based polyisobutylene is 100 parts by mass, n-butyl titanate is 1 part by mass, bromine 8 parts by mass of hydroxymethyl p-tert-butyl phenolic resin, 5 parts by mass of zinc oxide, 2 parts by mass of accelerator DM, 1 part by mass of accelerator TMTD, 0.5 parts by mass of scorch inhibitor, magnesium oxide, oxidation 4 parts by mass of calcium.

[0084] Put the chlorinated butyl rubber in a two-roll rubber mixer with a roller distance of about 1mm, masticate for 10 minutes, add half of the filler, and mix evenly; add the above-mentioned mixture to the kneader at a temperature of 90-100℃, Add the pre-mixed vulcanizing agent, activator, anti-scorching agent, water absorbing agent and the other half of the filler, and knead uniformly; add polyisobutylene, mix uniformly, and discharge; park for 36 hours; heat the...

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
Tensile shear strengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to a pressure sensitive vacuum bag sealing adhesive tape applicable under room temperature to 220 DEG C. Chlorinated butyl rubber is adopted as the base adhesive material of the sealing adhesive tape. Tackifying resin, a filler, a vulcanizing agent, an activator, a scorch retarder, a water-absorbing agent, and a coupling agent are added to the base adhesive material. The adhesive tape has the following advantage: the air permeation of chlorinated butyl rubber is the lowest among all general rubbers, such that chlorinated butyl rubber has good air tightness; the sealing adhesive tape has good heat resistance, wherein phenolic resin vulcanized chlorinated butyl rubber has as an application temperature range from room temperature to 220 DEG C; the sealing adhesive tape is pressure sensitive, such that sealing can be realized with finger pressure, wherein the pressure sensitivity is provided by polyisobutylene; the sealing adhesive tape has good adhesiveness on various sealing films and molds. A vacuum bag prepared with the sealing adhesive tape can provide pressure close to 1atm. With the sealing adhesive tape, long-time sealing can be realized under room temperature to 220 DEG C, and leakage is prevented. The sealing adhesive tape is convenient to use.

Description

technical field [0001] The invention relates to a vacuum bag sealing strip used at room temperature to 220°C and a preparation method thereof, belonging to the field of polymer rubber materials. Background technique [0002] There are mainly two companies that produce pressure-sensitive vacuum sealant strips abroad, Schinee and AEROVAC. The products have been serialized, and the maximum service temperature is 100-232°C. After use, it is easy to remove from the mold after cooling to 66°C. Peeled off, and can be peeled off and repositioned multiple times, but the recipe and method of preparation are not published. [0003] There are few domestic researches on high temperature resistant and pressure sensitive chlorinated butyl rubber vacuum bag sealing strips. [0004] Chinese patent CN101921551, High-temperature-resistant vacuum bag sealing tape, discloses a preparation method of high-temperature-resistant vacuum bag sealing tape, using butyl rubber, neoprene, polyisobutylene...

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): C08L23/28C08L23/22C08L61/06C08K13/06C08K13/02C08K3/36C08K3/34C08K3/22
CPCC08L23/28C08L2201/08C08L2205/02C08L2205/03C08L23/22C08L61/06C08K13/02C08K3/346C08K2003/2296C08K2003/222C08K13/06C08K3/36C08K2003/2206
Inventor 赵飞明张金亮许文王立敏
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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