Atomization combined with high-temperature sputtering method applied in latex compounding technology for preparation of natural rubber latex/silica composites

Bian, Huiguang; Chang, Tianhao; Wang, Chuansheng; Zhu, Donglin; Ren, Donghui; Xiao, Yao; Zhuang, Tao

doi:10.1007/s00289-020-03517-5

Cited by 5 publications

(2 citation statements)

References 25 publications

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“…12 Wet mixing is an effective method to improve the interfacial compatibility between silica and rubber and to make silica more evenly dispersed in the rubber. [13][14][15][16][17][18][19] Acid coagulation is the most traditional coagulation process in the wet mixing of rubber latex. Acid flocculants increase H + and reduce the pH of latex, leading to flocculation.…”

Section: Introductionmentioning

confidence: 99%

Self‐flocculation and its mechanism of natural rubber latex by accelerant‐modified silica

Xiao

Gong

et al. 2023

J of Applied Polymer Sci

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In this paper, an accelerant with vulcanization‐promoting and silanization‐promoting effects, 1,3‐diphenylguanidine (DPG), is loaded on green filler silica by high‐energy ball milling technology. Meanwhile, DPG breaks the ionization equilibrium of latex and realizes the self‐flocculation. The DPG‐induced self‐flocculation technology promotes the dispersion of silica and the silanization reaction, forming more complete filler‐rubber network and three‐dimensional crosslinking network. X‐ray diffraction, Fourier‐transform infrared spectroscopy, X‐ray photoelectron spectroscopy, and thermogravimetric analysis results show that the ball milling technology makes DPG strongly adsorbed on the surface of silica, and the loading rate is 14.4%. Compared with dry mixing, the ball milling‐self‐flocculation technology increase the silanization index, tensile strength and aging coefficient by 8%, 31%, and 19%, respectively. The curing rate is improved, and the rolling resistance is the lowest. This research provides a green flocculation technology of the raw materials in formula without other flocculants and acidic wastewater discharge, avoiding the serious dust pollution and high energy consumption in the dry mixing process, as well as the poor aging resistance of rubber in the acid flocculation process of latex.

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Section: Introductionmentioning

confidence: 99%

Self‐flocculation and its mechanism of natural rubber latex by accelerant‐modified silica

Xiao

Gong

et al. 2023

J of Applied Polymer Sci

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“…[ 14,15 ] Compared with traditional dry mixing technology, the wet‐mixing technology significantly improves the dispersion of reinforcing fillers in rubber, reduces energy consumption, and production costs. [ 16,17,18 ] Wang et al [ 19,20 ] prepared highly dispersed silica/NR composites by atomization combined with high‐temperature sputtering method. Using the speed difference between the emulsion column and compressed air, the silica/NR emulsion is sharply atomized, and the atomized droplets hit the high‐temperature metal roller and sputter, realizing the microscopic dispersion of silica in NR matrix.…”

Section: Introductionmentioning

confidence: 99%

Preparation of silica/natural rubber composites by foaming predispersion combined with gas‐phase‐assisted spray technology

Xiao

Yan

et al. 2022

Polymer Engineering & Sci

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This study proposes that the foaming pre‐dispersion technology is combined with the gas‐phase‐assisted spray technology, and a foaming agent potassium oleate is introduced. The volume expansion power generated by the bubbles promotes the dispersion of the filler. The uniformity of foaming promotes the chemical bridging of potassium oleate between rubber and silica. Then, with a large velocity difference between the compressed air and the emulsion, the gas‐phase‐assisted spray gun refines the emulsion and breaks the filler aggregates. Next, the atomized droplets splash on the surface of the high‐temperature roller, and then deposit on it to achieve instant drying, which reduces the loss of non‐rubber components, thereby improving the preparation efficiency and comprehensive properties of masterbatch. The Payne effect of the composite prepared by the FGS technology is weaker. The tensile strength, elongation at break, and tensile product of the vulcanizate prepared by the FGS technology with 7 phr PO have increased by 9%, 5%, and 15%, respectively, and the aging coefficient is 23% higher than that of the dry mixing.

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Study on the ozonation-modified multi-walled carbon nanotubes in polymer composites

Hao

Xiao

et al. 2022

Polym. Bull.

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Atomization combined with high-temperature sputtering method applied in latex compounding technology for preparation of natural rubber latex/silica composites

Cited by 5 publications

References 25 publications

Self‐flocculation and its mechanism of natural rubber latex by accelerant‐modified silica

Self‐flocculation and its mechanism of natural rubber latex by accelerant‐modified silica

Preparation of silica/natural rubber composites by foaming predispersion combined with gas‐phase‐assisted spray technology

Study on the ozonation-modified multi-walled carbon nanotubes in polymer composites

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