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

Multifunctional fluororubber expanding agent particles and preparation method thereof

A puffing aid and fluororubber technology, which is applied in the field of fluororubber multifunctional puffing aid particles and their preparation, can solve the problems of uneven dispersion, multiple additions, flying powder, etc. The effect of ensuring production efficiency and quality

Active Publication Date: 2017-04-26
自贡天龙化工有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a fluorine rubber multi-functional expansion aid granule and its preparation in view of the shortcomings of the existing additives in the fluorine rubber mixing process, such as multiple additions, uneven dispersion, and powder flying. method

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
  • Multifunctional fluororubber expanding agent particles and preparation method thereof
  • Multifunctional fluororubber expanding agent particles and preparation method thereof
  • Multifunctional fluororubber expanding agent particles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: Expanding aid particle A

[0029] The formula is shown in Table 1 below

[0030]

[0031]

[0032] 1) Accurately weigh fluorine rubber 246G, foaming agent calcium bicarbonate, foam stabilizer dimethyl silicone oil, 1# vulcanizing agent, acid absorbing agent calcium oxide, reinforcing agent calcium carbonate, anti-scorch agent N-cyclohexyl according to the formula Thiophthalimide (CTP) and release agent zinc stearate are used to prepare the raw materials required for the expansion aid, and the raw materials of the aid are ultrafinely pulverized to a particle size of 5-10 μm, and mixed with ultrasonic waves 15min;

[0033] 2) Add the mixing aid raw materials and fluororubber carrier prepared in step 1) into the internal mixer, knead at 50°C for 15 minutes, raise the temperature to 65°C, and discharge to obtain the premixing aid;

[0034] 3) The given rotational speed of the control host is 160r / min, and the premixed additive obtained in step 2) is fe...

Embodiment 2

[0036] Embodiment 2: Expanding aid particle B

[0037] The formula is shown in Table 2 below

[0038]

[0039]

[0040] 1) Accurately weigh 246G fluorine rubber, foaming agent calcium bicarbonate, foam stabilizer dimethyl silicone oil, 2# vulcanizing agent, acid absorbing agent magnesium oxide, reinforcing agent white carbon black, anti-scorch agent N-ring according to the formula Hexylthiophthalimide (CTP) and mold release agent sodium stearate are used to prepare the raw materials required for the bulking aid, and the raw materials of the aid are ultrafinely pulverized to a particle size of 5-10 μm, and ultrasonically Mix for 20 minutes;

[0041] 2) Add the raw materials and fluororubber carrier prepared in step 2) to the internal mixer, knead at 45°C for 20 minutes, raise the temperature to 70°C, and discharge to obtain the premixing aid;

[0042] 3) The given rotational speed of the control host is 180r / min, and the premixed additive obtained in step 2) is fed to t...

Embodiment 3

[0044] Embodiment 3: Expanding aid particle C

[0045] The formula is shown in Table 3 below

[0046]

[0047]

[0048] 1) Accurately weigh 246G fluorine rubber, foaming agent calcium bicarbonate, foam stabilizer dimethyl silicone oil, 3# vulcanizing agent, acid absorbing agent calcium hydroxide, reinforcing agent carbon black, anti-scorch agent N-3 according to the formula Chloromethylthio-N-phenylbenzenesulfonamide and release agent palm wax are used to prepare the raw materials required for the expansion aid, and the raw materials are ultrafinely pulverized to a particle size of 5-10 μm, and ultrasonically mixed for 20 minutes;

[0049] 2) Add the mixing aid raw materials and fluororubber carrier prepared in step 1) into the internal mixer, knead at 45°C for 15 minutes, raise the temperature to 65°C, and discharge to obtain the premixing aid;

[0050] 3) The given rotational speed of the control host is 160r / min, and the premixed additive obtained in step 2) is fed t...

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
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of fluororubber auxiliaries and preparation thereof, in particular to a multifunctional fluororubber expanding agent particles and a preparation method thereof. A multifunctional fluororubber expanding agent comprises fluororubber, a foaming agent, a foam stabilizer, a vulcanizing agent, an acid absorbing agent, a reinforcing agent, an anti-scorching agent and a release agent. The preparation method is simple and easy to operate and includes steps of grinding and well mixing, mixing and preforming, extruding and pelleting, microwave expanding and the like. The multifunctional fluororubber expanding agent prepared according to the method is free of caking at a room temperature, easy for compounding and mixing and high in dispersity, mixing time is shortened, dust flying is avoided, skin allergy of operators is avoided, and high raw material utilization rate is achieved. In addition, materials are uniformly dispersed in rubber products after mixing, production efficiency and quality of the rubber products can be guaranteed, and great significance to sustainable development of the rubber manufacturing industry is achieved.

Description

technical field [0001] The invention relates to the technical field of fluorine rubber additives and its preparation, in particular to a fluorine rubber multifunctional expansion additive particle and a preparation method thereof. Background technique [0002] There are many kinds of fluororubber additives, including vulcanizing agent, acid absorbing agent, reinforcing agent, anti-scorch agent and mold release agent. At present, most of these additives are in powder form, and they are added separately when mixing fluororubber. Uniformity and dust pollution, and the uniformity of dispersion of additives in fluororubber directly affects the appearance and performance of rubber products. In order to solve the problem of dispersion of additives in fluororubber and improve its uniformity of dispersion, the common practice is to increase the rubber mixing temperature and prolong the mixing time, etc., but this will cause excessive crosslinking, reduce production efficiency, and in...

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): C08L27/12C08L83/04C08K13/02C08K3/22C08K3/26C08K5/375C08K5/098C08K3/36C08K3/04C08J9/08C08J3/28C08J3/12
CPCC08J3/12C08J3/28C08J9/08C08J2203/02C08J2327/12C08J2483/04C08L27/12C08L2205/03C08L83/04C08K13/02C08K2003/2206C08K2003/265C08K5/375C08K5/098C08K2003/222C08K3/36C08L91/06C08K3/04
Inventor 黄勇程杰程大军
Owner 自贡天龙化工有限公司