头盔内衬用半年就粉化掉渣，撞一下不敢想。头盔内衬老化寿命没看对，护头就是心里安慰。
内衬用半年就粉化，撞一下不敢想
头盔内衬是“护头的件”：缓冲、透气、贴头。材料要缓冲好、透气、贴头——结论先给：头盔内衬用发泡 TPE 是主流；高强度头盔，EPP/EPS 复合留。
头盔内衬最大的坑：寿命短在哪，老化曲线知道。老化曲线平缓，寿命长；曲线陡，寿命短——老化曲线，是内衬的寿命表。
头盔内衬是安全件：缓冲失效，就是事故。材料选对，头盔才安全——安全件，别省料钱。
头盔内衬为什么用 TPE
头盔内衬用 TPE 的理由：缓冲可做、透气可做、贴头可做、可回收——四条合起来，适合内衬。
缓冲是核心：撞击缓冲。缓冲测试写进验收——缓冲失效，就是事故。
老化不能省：老化曲线写进验收，别只看新料手感。老化曲线写进验收——老化，是内衬的寿命表。
撞击透气老化，三道关
撞击工况：撞击缓冲。缓冲数据要验——失效，就是事故。
透气工况：骑行闷热。透气数据要验——闷汗，就是问题。
老化工况：长期使用。老化曲线要验——衰减，就是问题。
TPE 还是 EPP？内衬一表看清
| 维度 | TPE | EPP |
|---|
| 缓冲 | 可做 | 好 |
| 透气 | 可做 | 一般 |
| 贴头 | 好 | 中 |
| 成本 | 中高 | 中高 |
| 回收 | 可回收 | 可回收 |
| 用途 | 骑行盔 | 竞技盔 |
表格读法：EPP 缓冲好但透气一般；TPE 贴头透气好——骑行盔 TPE，竞技盔 EPP。
按用途选：竞技 EPP，骑行 TPE。
头盔验收：老化曲线这关
| 时间 | 缓冲 | 结论 |
|---|
| 新品 | 基准 | 留档 |
| 1 年 | 复测 | 对比 |
| 2 年 | 复测 | 对比 |
| 3 年 | 复测 | 结论 |
表格读法：老化曲线做起来，寿命长短看得见——热氧老化前后硬度差、冲击保留率都要留档。
老化曲线，是内衬的寿命表。
只看新料数据，三个坑
坑一：只看新数据。新料软、晒半年就脆，不做老化等于蒙眼选料——老化必看。
坑二：缓冲虚标。失效——缓冲按实测验收。
坑三：透气漏测。闷汗——透气测试，必测。
选内衬料先看老化寿命
三问：缓冲按什么标准、老化曲线有没有、透气怎么验。一验：实际佩戴实测——三问一验，供应商底细清楚。
老化验证要先行：先把热氧老化后保留率写进指标。先看曲线，再谈价格——老化曲线，是内衬的寿命表。
留样要成习惯：每批留样，缓冲透气按批次复测。批次换料先对比再放量——批次稳，客诉少。
内衬：出问题照着排雷，一表清
| 现象 | 原因 | 对策 |
|---|
| 塌陷 | 缓冲不足 | 换高缓冲料 |
| 发硬 | 老化 | 换耐老化料 |
| 闷汗 | 透气不足 | 加透气孔 |
| 异味 | 助剂迁移 | 换低析出料 |
| 批次差 | 配方漂移 | 锁窗口 |
头盔内衬发泡密度 0.05-0.10 g/cm³，缓冲按撞击加速度测。 老化曲线做 1/2/3 年三档，曲线陡寿命就短。
EPP 缓冲好但透气一般，TPE 贴头透气好但缓冲中等。 竞技盔 EPP，骑行盔 TPE 发泡——按盔型选。
内衬寿命短不是缓冲差，是老化曲线没盯。 新数据漂亮不代表三年后还缓冲，老化曲线要留档对比。
头盔内衬验收：缓冲撞击、透气、贴头测试、老化曲线。 安全认证按国标欧标核验，认证编号要供应商出。
缓冲过检加老化曲线平缓，内衬戴三年缓冲不衰减。 每批留样测缓冲加透气，盔型系列按用途给料。
头盔内衬走 SEBS 发泡路线，Shore 00 30-50 那档果冻感才贴头。 竞技盔 EPP 缓冲强，骑行盔 TPE 发泡贴头透气，发泡倍率直接决定缓冲厚度和重量，要按盔型定档。
内衬老化曲线按 70℃×22h 压变和三年留样对比验。 新料缓冲漂亮不代表三年后还兜得住，认证编号按国标欧标核，
缓冲撞击和透气分开测，认证报告随批走。
盔型系列按用途给料，缓冲和透气按三年寿命一起盯。 每批留样测缓冲加透气，新料数据漂亮要和三年后留样对比，
老化曲线平缓才敢签长期单。
缓冲件别只测新料，三年老化曲线要留档对比。 竞技盔EPP骑行盔TPE发泡按盔型定，缓冲撞击和透气分开验，
认证编号按国标欧标核，每批留样缓冲加透气。
科隆客户案例：交期紧现货对不上，重调配方补认证
泉州一家运动器材厂，头盔内衬交期紧，现货牌号性能对不上。科隆配合重调配方（油/助剂/填充比例），通过第三方检测并补齐认证，按期交付。配方重调，性能对上了，认证也齐了——交期紧，靠的是备好的方案。
小结
头盔内衬的选型，老化先看，缓冲再测，寿命短在哪老化曲线知道，老化曲线是寿命表。
塑料件最难的不是做出来，是三年五年之后还那样。
吸水、老化、疲劳、蠕变——这些词在图纸上看不见，在售后单上全看得见。
宁波市科隆新材料有限公司，做改性热塑性弹性体、改性尼龙（PA6 / PA66 / PA46 / PA11 / PA12 / PA6T / PA9T 及尼龙合金）、改性 PPO / PPS，以及各大化工巨头尼龙树脂、副牌料、大包料现货。
- 批次：第 13 批｜TY10
- 主关键词：头盔内衬；次关键词：头盔内衬TPE、内衬缓冲、内衬透气、老化曲线
- 摘要：头盔内衬用什么TPE？寿命短在哪，老化曲线知道。缓冲、透气、老化三张表一次讲清。
- 更新时间：待定
Helmet liners chalking after half a year, I can't even imagine a bump. I misjudged the aging lifespan of helmet liners; head protection is just a comfort to my heart.
Helmet liners choned after half a year, not even worth thinking about after a bump
Helmet liners are "head protection parts": cushioning, breathable, and close to the head. The material should be cushioned, breathable, and close to the head—here's the conclusion: foam TPE is the mainstream helmet lining; High-strength helmets use EPP/EPS composite materials.
The biggest pitfall with helmet linings: where is the short lifespan? The aging curve is known. The aging curve is smooth, but the lifespan is long; The curve is steep, the lifespan is short—the aging curve is the liner's lifespan chart.
Helmet lining is a safety part: if the cushion fails, it's an accident. Choosing the right materials makes the helmet safe—safety parts, don't skimp on material costs.
Why use TPE for helmet lining ?
Reason for using TPE for helmet lining: cushioning, breathability, snug, recyclability—all four together, suitable for lining.
Cushioning is the core: impact cushioning. Write the buffer test into acceptance—if the buffer fails, it's an accident.
Aging can't be skipped: write the aging curve into the inspection, don't just look at the feel of new materials. Write the aging curve into the acceptance — aging is the lifetime table of the lining.
Impact Breathable Aging, Three Barriers
Impact Condition: Impact buffering. Buffer data must be checked—failure means accident.
Breathable Condition: Riding is stuffy and hot. Breathability data must be checked—sweating is the problem.
Aging Condition: Long-term use. Aging curve must be tested—attenuation is the problem.
TPE or EPP? Lining: Clearly visible
| Dimension | TPE | EPP |
|---|
| Cushioning | Possible | Good |
| Breathable | Suitable | Average |
| Veneer | Good | Medium |
| Cost | Medium-high | Medium-high |
| Recyclable | Recyclable | Recyclable |
| Purpose | Cycling helmet | Competition helmet |
Table reading: EPP cushions well but breathability is average; TPE is breathable close to the head—TPE for cycling helmets, EPP for racing helmets.
Choose by purpose: Competitive EPP, TPE for cycling
Helmet Acceptance: The Aging Curve Stage
| Time | Buffer | Conclusion |
|---|
| New product | Benchmark | File for record |
| 1 year | Retest | Contrast |
| 2 years | Retest | Contrast |
| 3 years | Retest | Conclusion |
Table reading: Create the aging curve, and the lifespan can be seen — both the hardness difference and impact retention rate before and after thermal-oxidative aging need to be recorded.
The aging curve is the lifespan chart of the lining.
Only looking at the new material data, three pitfalls
Pitfall 1: Only looking at new data. New material is soft and becomes brittle after six months of exposure; not conducting aging tests is like selecting material blindly — aging must be checked.
Pitfall 2: Buffer overstatement. Failure — buffer should be accepted according to actual measurements.
Pitfall 3: Air permeability testing overlooked. Sweat from stuffiness — air permeability test must be done.
When choosing lining materials, first look at aging life
Three questions: what is the standard for cushioning, is there an aging curve, how to test breathability. One test: actual wear test—three questions and one test, the supplier's details are clear.
Aging verification must come first: first write the retention rate after thermal-oxidative aging into the indicators. Look at the curve first, then discuss the price — the aging curve is the lifespan chart of the liner.
Making sample retention a habit: retain samples from each batch, and re-test the buffering and ventilation for each batch. Compare before scaling up when changing materials between batches—stable batches lead to fewer customer complaints.
Lining: If there’s a problem, troubleshoot accordingly; everything is clear at a glance
| Phenomenon | Reason | Countermeasure |
|---|
| collapse | Insufficient buffer | Change to high cushioning material |
| become hard | Aging | Replace with aging-resistant material |
| clammy sweat | Insufficient breathability | Add ventilation holes |
| Odor | Additive migration | Switch to low precipitation material |
| Batch difference | Formula Drift | Lock window |
Helmet lining foam density: 0.05-0.10 g/cm³; buffer measured by impact acceleration. Aging curve set to 1/2/3 years; steep curve shortens lifespan.
EPP Good cushioning but average breathability; TPE has good breathability close to the head but medium cushioning. Competition helmet EPP, cycling helmet TPE foam—choose by helmet type.
Short lining lifespan isn't due to poor cushioning, but because the aging curve isn't monitored. New good data doesn't mean cushioning will still be used after three years; the aging curve should be archived for comparison.
Helmet lining acceptance: cushioning impact, breathability, snug test, aging curve. Safety certification is verified according to national or European standards; certification number must be issued by the supplier.
Buffer pass and aging curve is smooth; liner with three years of cushioning does not degrade. Each batch is sampled for buffering plus breathability; helmet series are supplied according to usage.
Helmet liners follow the SEBS foam route; Shore 00 30-50 levels have a jelly-like feel that fits the head. Competition helmets have strong EPP cushioning, cycling helmets have TPE foam that fits the head for breathability; the foam ratio directly determines cushioning thickness and weight, so the rating should be set according to helmet type.
Lining aging curve is tested by comparing 70°C×22h voltage change and three-year sample retention. Good cushioning in new material does not mean it will last three years; certification numbers follow national and European standards;
buffer impact and breathability are tested separately, certification reports are sent with batch.
Helmet series is supplied according to usage; buffering and breathability are monitored together according to a three-year lifespan. Each batch of samples is tested for buffering plus breathability; new material data should be compared with samples kept after three years;
only allows long-term orders if the aging curve is flat.
Buffer parts should not only test new materials; the three-year aging curve should be archived for comparison. Competition helmets EPP cycling helmets with TPE foam are determined by helmet type; buffering, impact, and breathability are tested separately.
certification numbers follow national and European standards, with buffering and breathability added to each batch of samples.
Cologne customer case: tight delivery deadline, in-stock did not match, readjust formula to supplement certification
A sports equipment factory in Quanzhou had a tight delivery time for helmet lining, and the in-stock grade and performance did not match. Cologne cooperated with a readjusted formula (oil/additives/filling ratio), passed third-party testing and completed certification, and delivered on schedule. Formula readjustment, performance matched, and certification was complete—tight delivery depends on a prepared plan.
Summary
Helmet lining selection: look at aging first, buffer before testing, and know where the lifespan is short. The aging curve is known; the aging curve is the lifespan chart.
The hardest part about plastic parts isn't making them, but whether they'll still be the same after three or five years.
Water absorption, aging, fatigue, creep—these words aren't visible on drawings, but are visible on after-sales orders
Ningbo Cologne New Materials Co., Ltd., produces modified thermoplastic elastomers, modified nylon (PA6 / PA66 / PA46 / PA11 / PA12 / PA6T / PA9T and nylon alloys), modified PPO / PPS, as well as nylon resins, secondary materials, and bulk materials from major chemical giants in stock.
- Batch: 13th Batch｜TY10
- Main Keywords: Helmet Liner; Secondary Keywords: Helmet Liner TPE, Liner Cushioning, Liner Breathability, Aging Curve
- Summary: What TPE is used for helmet liners? Where is the lifespan short, what does the aging curve show. Cushioning, breathability, and aging—three tables explained at once.
- Update Time: TBD
