Hydrotalcite and lanthanum ricinoleate composite environmental-protection stabilizer for PVC and preparation method thereof

A technology of lanthanum ricinoleate and an environmentally friendly stabilizer, which is applied in the field of PVC additives, can solve the problems of not being able to be the main stabilizer alone, low thermal stability, and poor colorability, and achieve improved thermal stability, low cost, and improved stability. sexual effect
CN105295218AInactive Publication Date: 2016-02-03HWASU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HWASU
Publication Date
2016-02-03
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention provides a hydrotalcite and lanthanum ricinoleate composite environmental-protection stabilizer for PVC. The hydrotalcite and lanthanum ricinoleate composite environmental-protection stabilizer for PVC is prepared from the following raw materials (by weight): 20-30 parts of modified Mg-Al hydrotalcite, 10-12 parts of tin dilaurate, 6-9 parts of lanthanum ricinoleate, 1-3 parts of triethyl phosphate, 3-6 parts of barium stearate, 2-4 parts of epoxidized soybean oil, 10-13 parts of propanediol sebacate polyester, 5-6 parts of zinc stearate, 2-4 parts of 4-benzoyloxy-2,2,6,6-tetramethylpiperidine, 2-4 parts of ethylene bis-stearamide and 10-14 parts of potassium feldspar powder. The PVC stabilizer of the invention has good heat stability and processability, is environmentally-friendly, nontoxic and low-cost, has good plasticity during processing of PVC, can reduce balance torque and has good transparency.
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Description

technical field

[0001] The invention relates to the field of PVC additives, in particular to a PVC hydrotalcite lanthanum ricinoleate composite environmental-friendly stabilizer and a preparation method thereof. Background technique

[0002] With its superior physical properties and low cost, PVC is widely used in chemical industry, materials, machinery, agriculture, daily necessities and other fields, especially in the field of plastics, and is known as one of the five general-purpose plastics. However, PVC has a very important defect, that is, it is easy to decompose and generate HCl gas during thermal processing, and self-catalysis leads to severe degradation of PVC, which affects various properties of PVC products, such as discoloring PVC products or reducing its mechanical properties. In order to overcome this defect of PVC, it is mainly to add an appropriate amount of stabilizer during the thermal processing of PVC.

[0003] The only heat stabilizers that are generall...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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