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Guo C, Peng Q, Wei H, Liu J, Hu X, Peng J, Ma J, Ye X, Yang J. Phosphorus-Containing Flame-Retardant Benzocyclobutylene Composites with High Thermal Stability and Low CTE. ACS OMEGA 2023; 8:9464-9474. [PMID: 36936317 PMCID: PMC10018689 DOI: 10.1021/acsomega.2c08159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
As a component of printed circuit substrate, copper clad laminate (CCL) needs to meet the performance requirements of heat resistance, flame retardancy, and low coefficient of thermal expansion (CTE), which, respectively, affects the stability, safety, and processability of terminal electronic products. In this paper, benzocyclobutylene (BCB)-functionalized phosphorus-oxygen flame retardant composites were prepared through introducing the BCB groups, and the performance was researched by thermogravimetric analysis, microcombustion calorimetry, and thermomechanical analysis. The research results show that these phosphorus oxide compounds containing BCB groups show good thermal stability and low total heat release (THR) after thermal curing, and the more BCB groups on the phosphorus oxide monomers, the better the thermal stability and flame retardancy of cured resins. The Td5 and THR of the composite (M3) are as high as 443 °C and 23.1 kJ/g, respectively. In addition, the CTE of M3 is as low as 16.71 ppm/°C. Introduction of BCB groups which can be crosslinked through heat to improve the thermal stability, flame retardancy, and reduced CTE of traditional organophosphorus flame retardant materials. These materials are expected to be good candidates for CCL substrates for electronic circuits.
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Affiliation(s)
- Chao Guo
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Qiuxia Peng
- School
of Materials Science and Engineering, Sichuan
University of Science & Engineering, Zigong 643000, China
| | - Hubo Wei
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jiaying Liu
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xinyu Hu
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Juan Peng
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jiajun Ma
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xu Ye
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- School
of Continuing Education, Southwest University
of Science and Technology, Mianyang 621010, China
| | - Junxiao Yang
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
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Sovtić N, Predrag KS, Bera OJ, Pavličević JM, Govedarica OM, Jovičić MC, Govedarica DD. A review of environmentally friendly rubber production using different vegetable oils. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25443] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Novica Sovtić
- Faculty of Technology Novi SadUniversity of Novi Sad Novi Sad Serbia
| | - Kojić S. Predrag
- Faculty of Technology Novi SadUniversity of Novi Sad Novi Sad Serbia
| | - Oskar J. Bera
- Faculty of Technology Novi SadUniversity of Novi Sad Novi Sad Serbia
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Zirnstein B, Schulze D, Schartel B. Combination of Phosphorous Flame Retardants and Aluminum Trihydrate in Multicomponent EPDM Composites. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Benjamin Zirnstein
- Bundesanstalt für Materialforschung und ‐prüfung (BAM) Unter den Eichen 87, 12205 Berlin Germany
| | - Dietmar Schulze
- Bundesanstalt für Materialforschung und ‐prüfung (BAM) Unter den Eichen 87, 12205 Berlin Germany
| | - Bernhard Schartel
- Bundesanstalt für Materialforschung und ‐prüfung (BAM) Unter den Eichen 87, 12205 Berlin Germany
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Khattak A, Amin M. Accelerated aging investigation of high voltage EPDM/silica composite insulators. JOURNAL OF POLYMER ENGINEERING 2016. [DOI: 10.1515/polyeng-2015-0004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Ethylene-propylene-diene-monomer (EPDM) is one of the most frequently used outdoor insulating materials. Like other polymeric materials, EPDM and its composites also degrade in outdoor applications. For evaluation of aging of insulating materials, accelerated multistress aging/weathering is an efficient method. In the current paper, comparative multistress aging performance investigation of neat EPDM (NE), EPDM with 20% microsilica (microcomposite, EMC), EPDM with 5% nanosilica (nanocomposite, ENC) and EPDM 20% microsilica 5% nanosilica (hybrid composite, EHC) is presented. Materials prepared according to ASTM D3182-07 were subjected to uniform ultraviolet (UV) radiation, heat, humidity, salt fog and acid rain at 2.5 kV voltage for 5000 h in a specially fabricated weathering chamber. For timely analysis of the aged materials, Fourier transform infrared (FTIR) spectroscopy, Swedish Transmission Research Institute (STRI) hydrophobicity classification and scanning electron microscopy (SEM) were used along with the critical visual inspection. Increasing discoloration was found in all materials which was proportional to% wt of the filler in composites. Improved hydrophobicity and better surface smoothness was recorded in composites as compared to NE, which was higher in the case of the microcomposite and hybrid composite. FTIR results showed least reduction in hydrocarbon bonds and lowest variation in chalking index in the case of the microcomposite.
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