In the fields of industry, scientific research and medicine, the application of laser technology is increasing day by day, and with it comes the concern about the safety protection of laser operation. Laser protection windows are an important barrier to protect operators from laser radiation damage, and the choice of materials directly affects the effectiveness of laser safety protection. Polycarbonate (PC) and PMMA are two materials commonly used to make laser protection windows. They each have unique performance characteristics and are suitable for different working environments and laser types.
Polycarbonate (PC) and PMMA are both materials commonly used to make laser protection windows. They differ in temperature resistance, impact resistance, and light transmittance. The following is a specific analysis:
Polycarbonate (PC) laser protection window
1. High-power laser resistance: PC has high heat resistance, making it more suitable for high-power laser protection. The softening temperature is about 120°C, providing a wider operating temperature range.
2. Impact resistance: PC's impact resistance is significantly better than PMMA, and its impact resistance is 30-50 times that of PMMA, making it suitable for use in environments where physical impact may occur.
3. Light transmittance: Although the light transmittance of PC is usually slightly lower than that of PMMA, it still has good optical properties, which is sufficient to meet most laser protection needs.
4. Environmental performance: PC is an environmentally friendly plastic that meets the environmental standards of many countries and is suitable for applications that need to meet specific environmental requirements.
PMMA laser protection window
1. Heat resistance: PMMA has low heat resistance and begins to soften at about 70°C, which limits its use in high-temperature or high-power laser environments.
2. Impact resistance: PMMA is relatively brittle, easy to break, and has poor impact resistance, so it is not suitable for use in environments susceptible to physical impact.
3. Light transmittance: PMMA has a light transmittance of more than 91%, which is slightly higher than that of PC at the same thickness, which makes it advantageous in certain applications that require high light transmittance.
4. Chemical stability: PMMA has good chemical and weather resistance, but its surface hardness is low, it is easy to scratch, and it is easy to swell when it absorbs water, which may affect its long-term stability in certain environments.
| Characteristic | Polycarbonate (PC) Laser Protection Window | PMMA Laser Protection Window |
|---|---|---|
| Temperature Resistance | High-temperature resistance, softening temperature around 120°C, suitable for high-power lasers | Low heat resistance, begins to soften around 70°C, not suitable for high-temperature environments |
| Impact Resistance | Strong impact resistance, impact strength is 30-50 times that of PMMA | Relatively brittle, easy to break, poor impact resistance |
| Light Transmittance | Good light transmittance, but usually slightly lower than PMMA | Light transmittance higher than 91%, slightly higher than PC's light transmittance at the same thickness |
| Environmental Performance | Belongs to environmentally friendly plastics, meets multinational environmental standards | Some environmental attributes do not meet the standards, gradually being phased out in some areas |
| Chemical Stability | Corrosion-resistant, but not alkali-resistant, requires coating to prevent UV damage | Good chemical and weather resistance, but low surface hardness, easy to scratch, water absorption and expansion |
JTBYShield Laser Technology Co., Ltd. has a large number of PMMA laser protection plates in stock, with no minimum order quantity limit. You can easily find the laser protection plates you need at JTBYShield Laser Technology Co., Ltd., for example, UV protection, blue light protection, green light protection, ultraviolet light protection, ultraviolet light protection, infrared light protection, etc., which can be used in dentistry, industry, optical research, agriculture, aerospace manufacturing, etc.
Of course, if you need PC laser protection plates, we can also produce them for you, but based on the cost of production materials and the output of a single production line, the minimum order quantity should be 120pcs, and the size of a single piece is 1280*1000*5mm.
If you have any needs, please contact JTBYShield Laser Technology Co., Ltd. and tell us your requirements. We will provide professional selection and quotation services. Looking forward to your contact.