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Non-toxic environment-friendly stabilizer auxiliary agent and preparation method thereof

A stabilizer additive, non-toxic and environmentally friendly technology, which is applied in the field of stabilizer additives, can solve the problems of poor weather resistance in addition, and achieve the effects of improving weather resistance, stability, and precipitation prevention in the later stage

Active Publication Date: 2016-04-13
山东和隆新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The biggest advantage of non-toxic and environmentally friendly composite stabilizer additives is that it is a raw material used in medicine. This type of material has a certain initial stabilization effect and can improve the initial stability of PVC products, but too much addition will cause poor weather resistance.

Method used

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  • Non-toxic environment-friendly stabilizer auxiliary agent and preparation method thereof
  • Non-toxic environment-friendly stabilizer auxiliary agent and preparation method thereof
  • Non-toxic environment-friendly stabilizer auxiliary agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0029] Preparation of modified molecular sieve:

[0030] Weigh 300g of 4A type molecular sieve and place it in a muffle furnace for high-temperature dehydration treatment. The temperature is 255±5°C, keep it for 2 hours, take out the heat-treated molecular sieve, weigh 150g, 20g of phenyldiisooctyl phosphite and 20g of pentaerythritol. , mixed in a high-speed mixer, kept for 5 minutes, taken out, ground, and sieved to obtain a white powder modified molecular sieve.

[0031] The preparation of the new molecular sieve non-toxic and environmentally friendly stabilizer auxiliary is as follows:

[0032] In the high-speed mixer, add calcium acetylacetonate and heat up to 75±5°C, continue to add modified molecular sieve at 110°C and keep stirring, add chelating agent and coupling agent, and after stirring evenly, release the material to obtain the product.

[0033] The formulations of the raw materials of Examples 1 to 3 are shown in Table 1.

[0034] The formula of each raw materi...

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Abstract

The invention relates to a stabilizer auxiliary agent, in particular to a non-toxic environment-friendly stabilizer auxiliary agent and a preparation method thereof. The stabilizer auxiliary agent is prepared from, by weight, 45-65 parts of calcium acetylacetonate, 30-40 parts of modified molecular sieves, 5-10 parts of a chelating agent and 5-10 parts of a coupling agent. A preparation method of the modified molecular sieves comprises the steps of conducting drying and dehydration treatment on molecular sieves, then mixing the molecular sieves with pentaerythritol ester and diisooctyl phenyl phosphite, and grinding the mixture, so that the modified molecular sieves are obtained. When the non-toxic environment-friendly stabilizer auxiliary agent is used, such constituents as beta-diketone, bisphenol A and pentaerythrite in a traditional calcium-zinc stabilizer formula can be substituted, the consumption of hard calcium and hard zinc is reduced, the excellent synergistic effect and lubricating effect are achieved, heat stability time of a PVC product can be prolonged, the precipitation and blooming phenomena are prevented, later-period weatherability is improved, and production cost is lowered. The invention further provides the preparation method of the non-toxic environment-friendly stabilizer auxiliary agent.

Description

technical field [0001] The invention relates to a stabilizer auxiliary, in particular to a non-toxic environment-friendly stabilizer auxiliary and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the most commonly used plastics, which has the advantages of high strength, good insulation and lower price than PP and PE. Its biggest disadvantage is that it is prone to decomposition under processing temperature conditions or long-term heating. The solution is to add heat stabilizers during PVC processing to prevent or delay the process. In addition, when polyvinyl chloride is heated or exposed to ultraviolet radiation, it will also cause polymer degradation and HCl removal. Stabilizer is a chemical additive that can inhibit the degradation and discoloration of PVC caused by heat and light during processing, molding and use. Stabilizers can be divided into five categories according to their chemical structure: salt-based lead salt s...

Claims

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Application Information

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IPC IPC(8): C08K13/06C08K9/04C08K7/24C08K5/103C08K5/526C08K5/07C08K5/54C08L27/06
CPCC08K5/07C08K5/103C08K5/526C08K5/54C08K7/24C08K9/04C08K13/06C08L2201/08C08L27/06
Inventor 唐守余曹伟马亮
Owner 山东和隆新材料科技有限公司
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