Material advantages of plastic profile manufacturers
Advantages of plastic profiles:
1. Thermal stabilizer:
Plastic profile is a heat sensitive plastic, so in the production and processing of plastic profile, thermal stabilizer is essential. The metal salt in the thermal stability agent can absorb HCl decomposed from PVC, so it can delay the decomposition speed of plastics and extend the decomposition time. Compound lead salts are used in the production of plastic profiles, which have high thermal stability efficiency and low price.
2. Lubricant:
The primary function of lubricant is to reduce the friction between polymer and processing equipment and between polymer internal molecules, avoid resin degradation caused by excessive friction heat, and improve the efficiency of thermal stabilizer.
3. Processing aids:
Processing aids is a kind of improved additives developed to improve the function of plastic molding and processing. The processing temperature of plastic profile is close to that of decomposition temperature, poor fluidity and easy to stick to the equipment for coking. Therefore, a certain amount of processing aids are required to overcome the defects of plastic profiles in the production of plastic profiles.
4. Photostabilizer:
Photostabilizers can suppress the reaction of photooxidation degradation of polymers by shielding and absorbing ultraviolet rays, quenching the excited energy and capturing free radicals, and then give the products excellent photostability effect and extend their service life.
5. Filler:
Filler is a kind of solid additive different from plastics in composition and structure, also known as filler. It has obvious effect and economic value for improving some physical and mechanical functions of plastics and reducing the cost of plastics. Adding fillers in the production formula of plastic profiles can reduce the size change rate of plastic profiles after heating, improve the impact strength, add rigidly, and reduce the production cost.
Source: plastic profile manufacturer www.zhongshanlida.cn
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Extrusion molding of plastic profile manufacturers
Plastic profile extrusion molding planning considerations. In the planning of extrusion molding of plastic profile, special attention should be paid to the uniformity of wall thickness, fillet and stiffener. If there is any omission, it will lead to irreparable defects. Li, chief engineer of the plastic molding Research Institute of Tsinghua University, also pointed out that the planning of plastic products is very different with different cooling and setting methods. Let's take a look at the th
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Influence of technical commonness on PVC profile manufacturers
The coextrusion of PVC profiles and multicolored surface layers is one of the most popular coloration methods for PVC profiles in China. From 2002 to now, the development trend of producing colorful profiles by CO extrusion is rapid, accounting for about 40% of the sales market of colorful profiles, and it is estimated to reach 80% in 2020. By using coextrusion technology, the milky white PVC profile can be colored, and the aging resistance, temperature resistance and impact resistance of the PV
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Coloring problems of PVC profile manufacturers
Therefore, in terms of PVC coloring, fully consider the characteristics of commonly used resins and related modifiers, and blend the characteristics of color paste. In the selection of additives, we should pay attention to the following three problems: 1. Production and processing reliability, some ingredients in additives will promote the dissolution of resin. For example, iron ion and zinc ion are metal catalysts for PVC resin dissolution. Therefore, the use of compound (red, yellow, brown and
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12-17
Analysis on the defects of PVC profile manufacturer's production process
PVC profiles are widely used and bring convenience to our life. Generally, when we choose PVC profile, we will go to the regular business to buy, this posture quality is more guaranteed. We should read the operation manual carefully before using PVC profile, so that there will be no problem in the application process, which will affect our work. Some time, due to our improper use of methods will form PVC profile can not be used normally, then what should we do? 1. Surface tarnish: causes: poor p