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01/15/2021

Shandong Dingding Chemical Technology Co., Ltd. 5000t/aMBS resin and 5000t/aACR resin technical transformation project Environmental Impact Assessment Public Participation Announcement

"Shandong Dingding Chemical Technology Co., Ltd. 5000t/aMBS resin, 5000t/aACR resin technical transformation project environmental impact report" (draft for comments) has been prepared, in accordance with the "Environmental Impact Assessment Law of the People's Republic of China", "Environmental Impact Assessment Public "Participation Measures" and other documents, the environmental impact assessment of the project is now publicized, so as to broadly understand the attitudes of the public from all walks of life on the project construction and the opinions and suggestions on environmental protection, and accept the supervision of the public. 1. Outline of the construction project Project name: Shandong Dingding Chemical Technology Co., Ltd. 5000t/aMBS resin, 5000t/aACR resin technological transformation project Planning location: Gaoqing County, Zibo City, Gaoqing Economic Development Zone Dingding Chemical's existing plant Main construction content: The project covers an area of ​​29844m2, optimizes the company’s existing 5000t/a MBS resin plant, 5000t/a ACR resin plant and environmental protection facilities, improves the automation level in terms of feeding and reaction control, and adds MBS resin plant. Part of the equipment, enriched product plans, added 6 raw material storage tanks; newly installed a spray drying device, an organic waste gas incinerator, and upgraded the original sewage treatment station. After the transformation, the product plan is 5000t/a of MBS resin and 5000t/a of ACR resin. After the technological transformation, the models of MBS and ACR resins will increase, and the total production capacity will remain unchanged. 2. Internet links to the full text of the environmental impact report for soliciting comments and ways and means to access the paper report Internet link to the full text of the draft of the environmental impact report for this project: The paper report can be consulted at Shandong Dingding Chemical Technology Co., Ltd. or its entrusted environmental assessment unit (Shandong Haimenong Project Consulting Co., Ltd., address: 21st Floor, Building 2, Lushang Guoao City, No. 9777, Jingshi Road, Jinan City) Check 3. The public scope for soliciting opinions The public scope for soliciting opinions on this project is residents and units within 5Km around the agglomeration area 4. Web link to the public comment form If the public has any comments on the construction of this project, they can download the "Public Opinion Form" through the network link to fill in. 5. Ways and means for the public to put forward opinions If the public has any comments on this project, they can fill in the "Public Opinion Form" as required. The public can submit the completed public comment form to the construction unit within the specified time by letter, fax, e-mail or other methods provided by the construction unit. , Reflecting opinions and suggestions related to the environmental impact of construction projects. Construction unit: Shandong Dingding Chemical Technology Co., Ltd. Construction unit address: Gaoqing County, Zibo City, Gaoqing Economic Development Zone Dingding Chemical's existing plant area Construction unit contact person: Tian Gong Tel: 13953385055 Email: 383099861@qq.com EIA unit: Shandong Haimenong Project Consulting Co., Ltd. Contact person of EIA unit: Xue Gong Tel: 0531-81795815 ext. 8068 Email: hmn2103@126.com VI. The start and end time for public comments The public can put forward valuable comments to the environmental assessment agency and construction unit within 10 working days (2021.1.15~2021.1.28) from the date of publicity of this project. The feedback methods can be telephone, fax or email. Shandong Dingding Chemical Technology Co., Ltd. January 15, 2021
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Shandong Dingding Chemical Technology Co., Ltd. 5000t/aMBS resin and 5000t/aACR resin technical transformation project Environmental Impact Assessment Public Participation Announcement
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02/26/2019

Application of PVC_ACR low temperature impact modifier

PVC plastic doors and windows due to its excellent insulation, noise reduction, sealing and other characteristics, which has been widely used. Especially in cold areas of northern China and areas prone to sandstorms, more fully demonstrated the incomparable superiority. However, PVC plastic windows after years of use also revealed some weaknesses, such as low temperature impact resistance, cracking, aging discoloration and other issues. Application of Impact Modifier at Home and Abroad Since the introduction of PVC plastic door and window manufacturing technology in the 1980s in our country, the impact modifier is mainly based on CPE, and our country's production capacity is strong, the output is large, there is a trend of oversupply. Therefore, the domestic production of PVC plastic window profiles using CPE as an impact modifier is very common. Due to the fierce competition in the market for the production of CPE, individual manufacturers have won in quantity and neglected the quality of their products, affecting the stability of the product quality of some PVC window profiles manufacturers. Such as the thermal deformation temperature drops, the process is unstable, impact performance due to the quality of CPE fluctuations, a direct impact on the PVC plastic window quality. Although many professional and technical personnel have noticed in the formula design PVC low temperature impact resistance and other issues, but always around CPE as a modifier to improve low temperature impact resistance, so the actual effect is not obvious. With the progress of technology, the emergence of a new domestic impact modifier ACR, the trial has obviously improved the PVC plastic window low temperature impact resistance and other issues. After 90 years, with the increase of production of acrylic acid ester (ACR) in our country, the cost will drop, which will make more PVC plastic window profile factory adopt. The superiority of ACR shows more and more the effect of improving low temperature impact resistance of PVC, reducing cracks and improving aging discoloration. At present, the impact modifiers used in foreign countries, especially in Europe, are mainly ACRs, which are obviously superior to CPEs and other modifiers. Therefore, the application of ACR is an important way to improve and improve PVC plastic window performance. Impact modifier selection The choice of impact modifier should pay attention to the following aspects: 1, compatibility with PVC resin should be moderate, if the compatibility is too large, two completely molecular mixture, impact modifier may play a role as a plasticizer, and PVC molecules are closely attached, leaving the impact Force directly on the PVC chain, can not improve the role of anti-impact. On the contrary, if the compatibility between the two is too small to achieve uniform dispersion, the adhesion to PVC is lost and the impact can not be absorbed. 2, the glass transition temperature is low, can improve the impact resistance of PVC at low temperature. 3, high molecular weight, if necessary, the best light cross-linked to enhance the enhancement effect. 4, the performance of PVC performance and physical properties had no significant impact. 5, weatherability should be good, small mold expansion. 6, good blends with PVC technology. 7, heat resistance (resistant to deformation, thermal stability) is better. 8, economy. Properties and Application of Acrylic Series Impact Modifier As acrylate is a "core-shell" structural elastomer, giving it a series of advantages: Excellent impact resistance The impact resistance of "core-shell" structure is better than network structure polymer (CPE, EVA). As far as the glass transition temperature is concerned, the CPE is -10 ° C to -20 ° C, while the acrylate is up to -56 ° C, so that the low-temperature impact performance is obviously superior to that of CPE. The latest development of the TAE-858 glass temperature up to -60 ℃ above, to improve the profile low temperature impact performance is significant. A wide range of processing technology, operation process and stability CPE processing temperature range is narrow, because the structure of PVC and PVC close, high temperature (185 ℃), good mixing, easy to damage the network structure, resulting in decreased impact resistance. If the temperature is low, poor plasticization, poor dispersion, but also affect the impact, appearance and other properties, and acrylic impact modifier does not exist the above problems, processing temperature is wide, easy to operate, high yield, stable production Good sex. Lower thermal shrinkage, dimensional stability Good use of ACR impact modifier P V C profiles generally 100 ℃, 60 minutes lower shrinkage, usually below 1.5%. The CPE is higher, generally more than 1.5% (standard requirements ≤ 2.5%). The practical significance of this project is to test the longitudinal stress of PVC profiles. The factors affecting the size of longitudinal stress are th
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 Application of PVC_ACR low temperature impact modifier
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03/27/2019

Application of PVC_ACR low temperature impact modifier

PVC plastic doors and windows have been widely used due to their excellent heat preservation, noise reduction, and sealing properties. Especially in cold areas and sandstorm-prone areas in northern my country, it has fully demonstrated its incomparable superiority. However, PVC plastic windows have also exposed certain weaknesses after years of use, such as poor low-temperature impact resistance, cracking, aging and discoloration. Application of impact modifiers at home and abroad Since my country introduced PVC plastic door and window manufacturing technology in the 1980s, impact modifiers have basically been CPE, and my country has strong production capacity and large output, and there is a trend of oversupply. Therefore, it is very common for domestic enterprises to produce PVC plastic window profiles to use CPE as an impact modifier. Due to the fierce market competition among companies producing CPE, individual manufacturers win by quantity and ignore product quality, which affects the stability of product quality of some PVC plastic window profile manufacturers. For example, the heat distortion temperature drops, the process is unstable, and the impact performance fluctuates due to the quality of CPE, which directly affects the quality of PVC plastic windows. Although many professional and technical personnel have noticed the low-temperature impact resistance of PVC plastic windows in the formulation design, they always focus on CPE as a modifier to improve the low-temperature impact resistance, so the actual effect is not obvious. With the advancement of technology, the emergence of the new domestic impact modifier ACR has significantly improved the low-temperature impact resistance of PVC plastic windows and other issues after trials. After the 1990s, with the increase in the production of acrylic ester (ACR) in my country, the cost fell, and more PVC plastic window profiles production plants used it. The superiority of ACR shows more and more the effect of improving the low-temperature impact resistance of PVC, reducing cracking, and improving the aging and discoloration problems. At present, the impact modifiers used abroad, especially in Europe, are mainly ACR, whose performance is significantly better than CPE and other modifier products. Therefore, the application of ACR is an important way to improve and improve the performance of PVC plastic windows. The choice of impact modifier The choice of impact modifier should pay attention to the following aspects: 1. The compatibility with PVC resin should be moderate. If the compatibility is too large, the two are completely mixed at the molecular level. The impact modifier may act as a plasticizer and adhere closely to the PVC molecules, causing impact The force acts directly on the PVC chain, and cannot improve the impact resistance. On the contrary, if the compatibility of the two is too small to achieve uniform dispersion, the adhesion to PVC will be lost, and the impact force will not be absorbed. 2. The glass transition temperature should be low, which can improve the impact resistance of PVC at low temperatures. 3. The molecular weight should be high, and light cross-linking is best if necessary to improve the reinforcement effect. 4. It has no obvious influence on the performance and physical properties of PVC. 5. Good weather resistance and low mold release expansion. 6. Blending with PVC has good manufacturability. 7. Heat resistance (deformation resistance, thermal stability) is better. 8. Economy. The characteristics and application of acrylate series impact modifiers Because acrylate is a "core-shell" structural elastomer, it gives it a series of advantages for modification: Excellent impact resistance The impact resistance of the "core-shell" structure is better than that of the network structure polymer (CPE, EVA). As far as the glass transition temperature is concerned, CPE is -10℃~-20℃, and acrylate can reach -56℃, so the low temperature impact performance is obviously better than CPE. The newly developed TAE-858 has a glass transition temperature of over -60℃, which has a significant effect on improving the low-temperature impact performance of the profile. Wide range of processing technology, stable operation technology The processing temperature range of CPE is narrow, because the structure of chlorinated polyethylene is close to that of PVC, the temperature is high (185°C), the blending property is good, the network structure is easily destroyed, and the impact resistance is reduced. If the temperature is low, the plasticization is not good, the dispersion is poor, and it will also affect the impact, appearance and other properties. However, the acrylic impact modifier does not have the above problems, the processing temperature is wide, the operation is easy, the yield is high, and the production is stable. Good sex. Low thermal shrinkage, dimensional stability P V C profiles that use AC R impact modifiers ge
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Application of PVC_ACR low temperature impact modifier
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