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Our company can provide 8 product series including PTFE Adhesive Tape, PTFE Mesh Belt, PTFE Conveyor Belt, and PTFE Coated Fabric, etc. over 100 types of polymer industrial fabric composite materials.
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ABOUT AOKAI
Aokai, China professional PTFE product manufacturing & customization specialist, offers comprehensive industry solutions of aerospace, carbon fiber, automotive, chemical...
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20000
m 2
Company area
1800000
m 2
Annual capacity
100
+
Polymer compliant materials
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Aokai has precise testing instruments and strict quality inspections to ensure high-quality PTFE products.

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Check our news to know more about Aokai New Material.
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  • 15
  • July
What structural changes occur in PTFE high-temperature fabric during the aging process?

This article examines structural changes in PTFE high-temperature fabric during aging. Four aspects: PTFE coating microstructure — molecular chain scission and oxidation (carbonyl/carboxyl group formation), crystallinity changes (early rise then collapse), micro-crack and pinhole formation, surface powdering; Glass fiber substrate and interface — sizing/coupling agent decomposition causing loss of bonding, interfacial debonding and delamination (blistering, white areas), glass fiber network erosion and embrittlement, alkali metal oxide precipitation causing stress corrosion; Macroscopic structure and appearance — color change (white→beige→brown→black), shrinkage deformation and curling, surface roughening and gloss loss, powdering upon touch, complete loss of flexibility. Essence of aging: progressive process of "coating degradation → interface failure → substrate degradation."

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  • 15
  • July
How should the sintering time of PTFE high-temperature fabric be controlled?

This article covers how to control sintering time of PTFE high-temperature fabric. Core control method: line speed adjustment. Sintering time = effective heating section length ÷ fabric travel speed. Effective sintering threshold is 350°C (above this temperature counts as sintering time). Multi-zone temperature distribution: preheating (100-250°C), sintering (360-395°C), high-temperature setting (380-390°C), cooling (below 300°C). Reference times at 380-390°C: lightweight (0.08-0.13mm) 30-60 seconds; standard (0.18-0.25mm) 1.5-3 minutes; heavy (≥0.35mm) 3-5 minutes. Identification and adjustment: under-sintering (low strength, powder shedding, micro-cracks) → reduce speed to extend time; over-sintering (yellowing, brittleness, white fumes) → increase speed to shorten residence. Temperature-time equivalence allows high-temp fast sintering (395-405°C, seconds) or low-temp slow sintering (360-375°C, 5-8 minutes).

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  • 15
  • July
The pattern of change in the cohesive strength of the adhesive layer of Teflon high-temperature tape after high-temperature aging.

This article describes the pattern of change in cohesive strength of PTFE high-temperature tape adhesive layer after high-temperature aging. Three-stage pattern: Post-curing rising stage (early high-temperature exposure at 200-260°C, residual reactive groups continue crosslinking, cohesion significantly increases); Stable equilibrium stage (crosslinking approaches completion, cohesion remains stable over long periods); Degradation and decline stage (excessive time/temperature causes main chain degradation, cohesion decreases, adhesive softens and becomes tacky). Root causes of cohesive failure (internal tearing leaving residue) and squeeze-out (cold flow from edges due to decreased modulus) are analyzed.

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Jiangsu Aokai New Material
AoKai PTFE is professional PTFE Coated Fiberglass Fabric Manufacturers and suppliers in China, specialized in providing PTFE Adhesive Tape, PTFE Conveyor Belt, PTFE Mesh Belt. To buy or wholesale PTFE coated fiberglass fabric products. Numerous width, thickness, colors are available customized.

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 Address: Zhenxing Road,Dasheng Industrial Park,Taixing 225400, Jiangsu,China
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 E-mail:  vivian@akptfe.com
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